Overcurrent protection

Reliable protection against overcurrent
Long service life and efficiency
Reliability in the industry

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in the electrical engineering and electronics industry

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Dual location strength and reliability

Components for overcurrent protection from Bourns

TCS™ High-Speed Protectors (HSPs)

TCS-High-Speed-Protectors

Repetitive Peak Off-State Voltage Symbol: VDRM / unit: V	40 V
Typical Current Required for the Device to Go from Operating State to Protected State (IIMP)	375-1100 mA
Typical Series Resistance of the Device (RON)	1-2,3 Ω

TBU® High-Speed Protectors (HSPs) - AEC-Q101 Compliant

Max Impulse Voltage	250 V. 650 V. 850 V, 550 V
Max RMS Voltage	100 V. 300 V. 425 V
Trigger Current Levels	50 mA. 100 mA. 300 mA. 500 mA, 100 mA
Trigger Time	1 µs

TBU-High-Speed-Protectors AEC

POWrTherm™ NTC Thermistors

Disc Dia. (mm)	5-25
Resistance R25 (Ω)	1-3~20, 2,5~30, 0,7-1~120, 1~50, 1,3~220
I max. (A)	0,3~3.0, 0,5~4.0, 1~5.0, 2~7.0, 1~8.0, 2~13, 5~15
Max. Load Cap. 240 VAC (μF)	68~100, 100-1200, 150~390, 330~560, 470~1500
Pmax (W)	1,6-7

POWrTherm NTC thermistors range

TBU® High-Speed Protectors (HSPs)

Max Impulse Voltage	250 V. 400 V. 500 V. 650 V. 850 V, 250 V. 650 V. 850 V, 40-850 V, 550-650 V. 850 V, 600 V. 750 V. 850 V
Max RMS Voltage	100 V. 200 V. 250 V. 300 V. 425 V, 100 V. 300 V. 425 V, 250-300 V. 425 V, 350 V. 400 V. 425 V, 28-425 V
Trigger Current Levels	50 mA. 100 mA. 200 mA. 300 mA. 500 mA, 50 mA. 100 mA. 300 mA. 500 mA, 100-300 mA, 100 mA. 200 mA. 300 mA. 500 mA, 100 mA. 200 mA
Trigger Time	0,2-1 µs

TBU-High-Speed-Protectors

SinglFuse™ SMD Fuses - AEC-Q200-Equivalent Compliant

Fusing Characteristics	200 % Ir in 1 – 120 sec., 200-250 % Ir in 5 sec., 200 % Ir in 1 min., 250 % Ir in 5 sec. (8 – 20 A). 350 % Ir in 1 sec. (8 – 30 A), 0,5~0.75 A: 350 % Ir in 5 sec.. 1~6 A: 200 % Ir in 1 min., 200 % Ir in 20 sec.
Rated Current	1 A - 8 A, 0,5 A – 8 A, 1 A - 5 A, 0,5 A – 5 A, 8 A - 30A, 0,5 A - 6 A, 10 A - 20 A, 1,5 A – 15 A, 1 A – 10 A, 12 A – 20 A
Rated Voltage	32-65 VDC, 24 – 65 VDC, 50 VDC. 50 VAC, 24 - 65 VDC, 32 – 110 VDC, 125 – 250 VDC

SinglFuse SMD Fuses AEC range

SinglFuse™ SMD Fuses

Rated Current	315-500 mA - 4.0 A, 200 mA - 5 A, 0,63-1 A - 5 A, 150-500 mA - 5.0 A, 0,5 A - 4.0 A, 0,5-1 A - 8.0 A, 400-500 mA - 6.0 A, 0,5-2,5 A – 8 A, 1 A - 8 A, 500 mA - 7.0 A, 10 A - 30.0 A, 8 A - 30A, 0,5 A - 6 A, 10 A - 40.0 A, 500 mA - 8.0 A, 0,5 A – 5 A, 10 A - 20 A, 1,5 A - 15.0 A, 1,5 A – 15 A, 12 A - 20.0 A, 12 A – 20 A, 12 A - 25 A, 500 mA - 10.0 A, 1 A – 10 A, 62 mA - 10 A, 375 mA - 7 A, 500 mA - 2.0 A, 10 A - 60 A, 20 A - 30 A, 0,5 A - 5.0 A, 0,5 A - 2.0 A, 1,25 A, 20 A - 50 A
Rated Voltage	24-65 VDC, 32 – 50 VDC, 24-35 - 65 VDC, 24-32 - 63 VDC, 24-48 – 65 VDC, 32 – 63 VDC, 50 VDC. 50 VAC, 32 – 110 VDC, 65 VAC. 65 VDC, 65 - 86 VAC. 65 - 86 VDC, 125 - 250 VAC. 125 VDC, 125 – 250 VDC, 125-600 VAC

Rated Current

315-500 mA - 4.0 A, 200 mA - 5 A, 0,63-1 A - 5 A, 150-500 mA - 5.0 A, 0,5 A - 4.0 A, 0,5-1 A - 8.0 A, 400-500 mA - 6.0 A, 0,5-2,5 A – 8 A, 1 A - 8 A, 500 mA - 7.0 A, 10 A - 30.0 A, 8 A - 30A, 0,5 A - 6 A, 10 A - 40.0 A, 500 mA - 8.0 A, 0,5 A – 5 A, 10 A - 20 A, 1,5 A - 15.0 A, 1,5 A – 15 A, 12 A - 20.0 A, 12 A – 20 A, 12 A - 25 A, 500 mA - 10.0 A, 1 A – 10 A, 62 mA - 10 A, 375 mA - 7 A, 500 mA - 2.0 A, 10 A - 60 A, 20 A - 30 A, 0,5 A - 5.0 A, 0,5 A - 2.0 A, 1,25 A, 20 A - 50 A

Rated Voltage

24-65 VDC, 32 – 50 VDC, 24-35 - 65 VDC, 24-32 - 63 VDC, 24-48 – 65 VDC, 32 – 63 VDC, 50 VDC. 50 VAC, 32 – 110 VDC, 65 VAC. 65 VDC, 65 - 86 VAC. 65 - 86 VDC, 125 - 250 VAC. 125 VDC, 125 – 250 VDC, 125-600 VAC

SinglFuse SMD Fuses range

Multifuse® Polymer PTC Resettable Fuses - AEC-Q200 Compliant

Vmax	12 - 16 Vdc, 6-16 – 60 Vdc, 12 - 30 Vdc, 13,2 – 30 Vdc, 12 - 36 Vdc, 9 - 42 Vdc, 24 – 33 Vdc, 16 Vdc, 16 – 32 Vdc
Ihold (A)	0,05 - 0.50, 0,05 – 2.00, 0,1 - 0.75, 0,1 - 2.0, 0,1 - 2.60, 0,2 - 1.75, 1,36-1,85 - 3.00, 0,3 – 3.0, 0,05-3 - 11.0, 0,5 - 13.0, 50

Multifuse Polymer PTC Resettable Fuses

Fuse Blocks

Fuse Range (A)	100-110-400

Fuse Range (A)

100-110-400

Fuse Blocks range

Ceramic PTC Resettable Fuses

Rated Voltage	12 VDC - 1000 VAC, 60 VDC - 230 VAC, 230 VAC
Ihold (A)	0,01 - 2.1, 0,05 - 0.14, 0,07 - 0.18

Ceramic PTC Resettable Fuses

Multifuse® Polymer PTC Resettable Fuses - Surface Mount (SMD) Standard Series

Vmax	6 – 15 Vdc, 6 – 24 Vdc, 6-12 - 60 Vdc, 13,2 - 30 Vdc, 6-10 – 60 Vdc, 24 - 33 Vdc, 36 Vdc, 60 Vdc / 250 Vac
Ihold (A)	0,05-0,1 - 0.50, 0,1 - 1.10, 0,05 - 2.00, 0,1 - 2.6, 0,3 - 2.60, 1,85 - 3.00, 0,13-3, 0,3 – 3.0, 0,08 – 0.13

Surface Mount (SMD) Standard Series

Multifuse® Polymer PTC Resettable Fuses - Surface Mount (SMD) Low Ohmic Series

Vmax	6 Vdc, 6 – 8 Vdc, 6 – 12 Vdc
Ihold (A)	0,1 - 0.75, 0,35 - 3.00, 0,75 - 4.50, 1,5 - 6.0, 1,75 - 7.0

Surface Mount (SMD) Low Ohmic Series

Multifuse® Polymer PTC Resettable Fuses - Surface Mount (SMD) High Temperature Series

Vmax	12-16 Vdc, 12 – 16 Vdc, 12 - 30 Vdc, 12 - 36 Vdc, 9 - 42 Vdc
Ihold (A)	0,05 - 0.16, 0,05 - 0.50, 0,1 - 0.75, 0,1 - 2.0, 0,2 - 1.75, 1,36 - 3.00

Surface Mount (SMD) High Temperature Series

Multifuse® Polymer PTC Resettable Fuses - Radial Leaded, Through-hole Series

Vmax	16 – 60 Vdc, 16-72 Vdc, 16 – 32 Vdc, 240 Vac / 265 Vac, 60 Vdc / 250 Vac
Ihold (A)	0,05-3 - 11.0, 0,2 - 3.75, 0,5-3,5 - 13.0, 0,05 - 0.55, 0,12 - 0.18

Radial Leaded, Through-hole Series

Multifuse® Polymer PTC Resettable Fuses - Customized and DC Motor Series

Vmax	15-16 Vdc
Ihold (A)	2,5 - 12.2, 50

Customized and DC Motor Series

Multifuse® Polymer PTC Resettable Fuses - Axial Leaded (Strap) Series

Vmax	10 – 20 Vdc, 12-24 Vdc, 15 – 30 Vdc, 10 – 16 Vdc
Ihold (A)	1,9 - 9.0, 1 - 3.4, 1,2 - 4.2, 1,7 - 2.7, 1,7 - 2.1

Axial Leaded (Strap) Series

POWrFuse™ High-Power Fuses - Electric Vehicle

Dimension (mm)	10 dia. X 38
Rated Current	15-50 A
Rated Voltage	275 VAC / 500 VDC
Interrupting Rating	10 kA @ 275 VAC. 20 kA @ 500 VDC. 10 kA @ 450 VDC

Electric Vehicle Series

POWrFuse™ High-Power Fuses - Telecom

Dimension (mm)	14 dia. X 22
Rated Current	40-80 A
Rated Voltage	170 VDC
Interrupting Rating	100 kA @ 170 VDC

Telecom Series

POWrFuse™ High-Power Fuses - Photovoltaic

Dimension (mm)	10 dia. x 38
Rated Current	15-30 A
Rated Voltage	1000 VDC, 600 VAC. 600 VDC
Interrupting Rating	20 kA @1000 VDC, 150 kA @ 600 VAC. 50 kA @ 600 VDC. 10 kA @ 600 VDC

Photovoltaic Series

POWrFuse™ High-Power Fuses - Semiconductor

Dimension (mm)	24 dia. X 91. 35 dia. X 95, 17,2 dia. X 42
Rated Current	50-400 A, 50-180 A
Rated Voltage	800 VAC. 800 VDC, 240 VAC. 150 VDC
Interrupting Rating	100 kA @ 800 VAC. 50 kA @ 800 VDC, 160 kA @ 240 VAC. 50 kA @ 150 VDC

Semiconductor Series

POWrFuse™ High-Power Fuses - Industrial

Dimension (mm)	10-14 dia. X 38
Rated Current	63 A. 90 A, 6-12 A, 30-70 A
Rated Voltage	600 VAC. 125 VDC. 500 VAC, 600 VAC. 600 VDC, 500 VAC. 125 VDC
Interrupting Rating	500 A @ 600 VAC. 2000 A @ 250 VAC. 500 A @ 125 VDC. 1500 A @ 500 VAC, 100 kA @ 600 VAC. 100 kA @ 600 VDC, 2000 A @ 500 VAC. 2000 A @ 250 VAC. 1000 A @ 125 VDC

Industrial Series

Overcurrent protection solutions for electronic systems: Efficient safety mechanisms

Overcurrent protection is an indispensable technology for protecting electrical systems and components from damage caused by excessive currents. In many applications, whether in industry, power supply or electronics, high currents can lead to overloading of circuits and components. This can not only shorten the service life of devices, but also cause dangerous situations such as fires or failures.

As a distributor for overcurrent protection solutions, we offer a wide range of reliable and powerful protection technologies in cooperation with the renowned company Bourns. These include ceramic resettable fuses, high-speed protection devices and polymer PTC resettable fuses specifically designed for demanding applications.

Our products provide efficient protection for electronic components, cables, machines and circuits. By integrating overcurrent protection technologies, we ensure that your systems operate reliably and safely even under extreme conditions. As a partner of Bourns, we guarantee customized solutions that meet your requirements for safety, efficiency and durability.

Overcurrent protection devices for devices in the high-power range

Efficient overcurrent protection for electronic components

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Our range of components for overcurrent protection

TCS™ High-Speed Protectors (HSPs)

Photo	Series	Repetitive Peak Off-State Voltage Symbol: VDRM / unit: V	Typical Current Required for the Device to Go from Operating State to Protected State (IIMP)	Typical Series Resistance of the Device (RON)	Resistance Matching Between Side A and Side B (RMATCH)	Data Sheet
	TCS-DL004-250-WH	40 V	375 mA	2.3 Ω	±0.05 Ω
	TCS-DL004-750-WH	40 V	1100 mA	1.0 Ω	±0.02 Ω

TBU® High-Speed Protectors (HSPs) - AEC-Q101 Compliant

Photo	Series	Description	Footprint	Max Impulse Voltage	Max RMS Voltage	Trigger Current Levels	Trigger Time	Data Sheet
	TBU-CA-Q	Single Bidirectional	6.5 x 4	250 V, 650 V, 850 V	100 V, 300 V, 425 V	50 mA, 100 mA, 300 mA, 500 mA	1 µs
	TBU-DB-Q	Dual Bidirectional	6.5 x 5.5	550 V		100 mA	1 µs

TBU® High-Speed Protectors (HSPs)

Series	Description	Footprint	Max Impulse Voltage	Max RMS Voltage	Trigger Current Levels	Trigger Time
TBU-CA	Single Bidirectional	6.5 x 4	250 V, 400 V, 500 V, 650 V, 850 V	100 V, 200 V, 250 V, 300 V, 425 V	50 mA, 100 mA, 200 mA, 300 mA, 500 mA	1 µs
TBU-CA-Q	Single Bidirectional	6.5 x 4	250 V, 650 V, 850 V	100 V, 300 V, 425 V	50 mA, 100 mA, 300 mA, 500 mA	1 µs
TBU-DB-Q	Dual Bidirectional	6.5 x 5.5	550 V		100 mA	1 µs
TBU-DF	Dual Bidirectional	6.5 x 5.5	550 V, 850 V	250 V, 425 V	50 mA, 100 mA, 200 mA, 300 mA, 500 mA	1 µs
TBU-DT	Dual Unidirectional	5 x 5	650 V, 850 V	300 V, 425 V	100 mA, 200 mA, 300 mA, 500 mA	1 µs
TBU-PL	Dual Bidirectional	6.5 x 4	600 V, 750 V, 850 V	350 V, 400 V, 425 V	100 mA, 200 mA	1 µs
TBU-RS	Dual Unidirectional	8 x 5.5	550 V, 850 V	250 V, 425 V	300 mA	1 µs
P40	Bidirectional	4 x 4	40 V	28 V	240 mA	0.2 µs
P-G	Dual Bidirectional	8.25 x 4	850 V	425 V	200 mA	1 µs

SinglFuse™ SMD Fuses - AEC-Q200-Equivalent Compliant

Series	Footprint	Technology	Fusing Characteristics	Rated Current	Rated Voltage	Operating Temp. (°C)
SF-0603SPA-R	603	Metal Foil	200 % Ir in 1 – 120 sec.	1 A - 8 A	63 VDC	–55 – +150
SF-0603SA-M	603	Multilayer Ceramic	250 % Ir in 5 sec.	0.5 A – 8 A	24 – 65 VDC	–55 – +150
SF-0603HIA-M	603	Multilayer Ceramic	200 % Ir in 1 min.	1 A - 5 A	32 VDC	–55 – +125
SF-1206SA-M	1206	Multilayer Ceramic	250 % Ir in 5 sec.	0.5 A – 5 A	65 VDC	–55 – +150
SF-1206HHA-R	1206	Metal Foil	250 % Ir in 5 sec. (8 – 20 A), 350 % Ir in 1 sec. (8 – 30 A)	8 A - 30A	50 VDC, 50 VAC	–55 – +125
SF-1206HIA-M	1206	Multilayer Ceramic	0.5~0.75 A: 350 % Ir in 5 sec., 1~6 A: 200 % Ir in 1 min.	0.5 A - 6 A	24 - 65 VDC	–55 – +150
SF-1206SA-R	1206	Metal foil	250 % Ir in 5 sec.	10 A - 20 A	32 VDC	–55 – +150
SF-1206SA-W	1206	Wire Core PCB	250 % Ir in 5 sec.	1.5 A – 15 A	32 – 110 VDC	–55 – +125
SF-2410FPA-W	2410	Wire Core PCB	200 % Ir in 5 sec.	1 A – 10 A	125 – 250 VDC	–55 – +125
SF-2410FA-W	2410	Wire Core PCB	200 % Ir in 20 sec.	12 A – 20 A	65 VDC	–55 – +125

SinglFuse™ SMD Fuses

Series	Footprint	Technology	Fusing Characteristics	Rated Current	Rated Voltage	Operating Temp. (°C)
SF-0402F	402	Thin Film Ceramic	200 % Ir in 1 min.	315 mA - 4.0 A	32 VDC	–20 – +105
SF-0402FP	402	Thin Film Ceramic	200 % Ir in 5 sec.	500 mA - 4.0 A	32 VDC	–20 – +105
SF-0402FP-F	402	Thin Film PCB	0.2~0.25 A: 300 % Ir in 5 sec., 0.375~5 A: 200 % Ir in 5 sec.	200 mA - 5 A	35 VDC	–55 – +90
SF-0402FR	402	Thin Film Ceramic	200 % Ir in 5 sec.	0.63 A - 5 A	32 VDC	–20 – +105
SF-0402S	402	Thin Film Ceramic	250 % Ir in 5 sec.	500 mA - 4.0 A	32 VDC	–20 – +105
SF-0402S-M	402	Multilayer Ceramic	250 % Ir in 5 sec.	500 mA - 4.0 A	24 VDC	–55 – +125
SF-0603F	603	Thin Film Ceramic	200 % Ir in 1 min.	400 mA - 5.0 A	32 – 50 VDC	–20 – +105
SF-0603FP	603	Thin Film Ceramic	200 % Ir in 5 sec.	500 mA - 5.0 A	32 – 50 VDC	–20 – +105
SF-0603FP-F	603	Thin Film PCB	200 % Ir in 5 sec.	150 mA - 5.0 A	35 - 65 VDC	–55 – +90
SF-0603FP-M	603	Multilayer Ceramic	200 % Ir in 5 sec.	500 mA - 5.0 A	32 VDC	–55 – +125
SF-0603HI-F	603	Thin Film PCB	200 % Ir in 1 min.	0.5 A - 4.0 A	35 - 65 VDC	–55 – +90
SF-0603HI-M	603	Multilayer Ceramic	200 % Ir in 1 min.	1.0 A - 8.0 A	32 VDC	–55 – +125
SF-0603HIA-M	603	Multilayer Ceramic	200 % Ir in 1 min.	1 A - 5 A	32 VDC	–55 – +125
SF-0603S	603	Thin Film Ceramic	250 % Ir in 5 sec.	400 mA - 6.0 A	32 – 50 VDC	–20 – +105
SF-0603S-M	603	Multilayer Ceramic	250 % Ir in 5 sec.	500 mA - 6.0 A	24 - 63 VDC	–55 – +125
SF-0603SA-M	603	Multilayer Ceramic	250 % Ir in 5 sec.	0.5 A – 8 A	24 – 65 VDC	–55 – +150
SF-0603SP	603	Thin Film Ceramic	200 % Ir in 1 – 120 sec.	500 mA - 6.0 A	32 – 50 VDC	–20 – +105
SF-0603SPA-R	603	Metal Foil	200 % Ir in 1 – 120 sec.	1 A - 8 A	63 VDC	–55 – +150
SF-0603SP-R	603	Metal Foil	200 % Ir in 1 – 120 sec.	1 A - 8 A	63 VDC	–55 – +125
SF-0603SP-M	603	Multilayer Ceramic	200 % Ir in 1 – 120 sec.	1.0 A - 8.0 A	32 VDC	–55 – +125
SF-1206F	1206	Thin Film Ceramic	200 % Ir in 1 min.	500 mA - 7.0 A	32 – 63 VDC	–20 – +105
SF-1206F-M	1206	Multilayer Ceramic	200 % Ir in 1 min. (2.5 A – 5 A), 350 % Ir in 5 sec. (6 A – 8 A)	2.5 A – 8 A	48 – 65 VDC	–55 – +125
SF-1206FP	1206	Thin Film Ceramic	200 % Ir in 5 sec.	500 mA - 7.0 A	32 – 63 VDC	–20 – +105
SF-1206HH-M	1206	Multilayer Ceramic	350 % Ir in 5 sec.	10.0 A - 30.0 A	24 VDC	–55 – +125
SF-1206HH-R	1206	Metal Foil	250 % Ir in 5 sec. (8 – 20 A), 350 % Ir in 1 sec. (8 – 30 A)	8 A - 30A	50 VDC, 50 VAC	–55 – +150
SF-1206HHA-R	1206	Metal Foil	250 % Ir in 5 sec. (8 – 20 A), 350 % Ir in 1 sec. (8 – 20 A)	8 A - 30A	50 VDC, 50 VAC	–55 – +125
SF-1206HI-M	1206	Multilayer Ceramic	0.5~0.75 A: 350 % Ir in 5 sec., 1~8 A: 200 % Ir in 60 sec.	0.5 A - 8.0 A	24 - 65 VDC	–55 – +125
SF-1206HIA-M	1206	Multilayer Ceramic	0.5~0.75 A: 350 % Ir in 5 sec., 1~6 A: 200 % Ir in 1 min.	0.5 A - 6 A	24 - 65 VDC	–55 – +150
SF-1206HV-M	1206	Multilayer Ceramic	350 % Ir in 5 sec.	10.0 A - 40.0 A	35 VDC	–55 – +125
SF-1206S	1206	Thin Film Ceramic	250 % Ir in 5 sec.	500 mA - 7.0 A	32 – 63 VDC	–20 – +105
SF-1206S-M	1206	Multilayer Ceramic	250 % Ir in 5 sec.	500 mA - 8.0 A	32 - 63 VDC	–55 – +125
SF-1206SA-M	1206	Multilayer Ceramic	250 % Ir in 5 sec.	0.5 A – 5 A	65 VDC	–55 – +150
SF-1206SA-R	1206	Metal foil	250 % Ir in 5 sec.	10 A - 20 A	32 VDC	–55 – +150
SF-1206S-R	1206	Metal foil	250 % Ir in 5 sec.	10 A - 20 A	32 VDC	–55 – +125
SF-1206S-W	1206	Wire Core PCB	250 % Ir in 5 sec.	1.5 A - 15.0 A	32 - 65 VDC	–55 – +125
SF-1206SA-W	1206	Wire Core PCB	250 % Ir in 5 sec.	1.5 A – 15 A	32 – 110 VDC	–55 – +125
SF-1206SP	1206	Thin Film Ceramic	200 % Ir in 1 – 120 sec.	500 mA - 7.0 A	32 – 63 VDC	–20 – +105
SF-1206SP-M	1206	Multilayer Ceramic	200 % Ir in 1 – 120 sec.	1.0 A - 8.0 A	24 - 63 VDC	–55 – +125
SF-2410F-W	2410	Wire Core PCB	200 % Ir in 20 sec.	12.0 A - 20.0 A	65 VAC, 65 VDC	–55 – +125
SF-2410FA-W	2410	Wire Core PCB	200 % Ir in 20 sec.	12 A – 20 A	65 VDC	–55 – +125
SF-2410F-T	2410	Wire Core Ceramic	200 % Ir in 60 sec.	12 A - 25 A	65 - 86 VAC, 65 - 86 VDC	–55 – +125
SF-2410FP-W	2410	Wire Core PCB	200 % Ir in 5 sec.	500 mA - 10.0 A	125 - 250 VAC, 125 VDC	–55 – +125
SF-2410FPA-W	2410	Wire Core PCB	200 % Ir in 5 sec.	1 A – 10 A	125 – 250 VDC	–55 – +125
SF-2410FP-T	2410	Wire Core Ceramic	200 % Ir in 5 sec.	62 mA - 10 A	125 VAC	–55 – +125
SF-2410HI-T	2410	Wire Core Ceramic	200 % Ir in 1 min.	375 mA - 7 A	125 VAC	–55 – +125
SF-2410SP-W	2410	Wire Core PCB	200 % Ir in 1 – 120 sec.	500 mA - 2.0 A	250 VAC	–55 – +125
SF-3812F-T	3812	Wire Core Ceramic	200 % Ir in 60 sec.	10 A - 60 A	250 VAC	–55 – +125
SF-3812FG-T	3812	Wire Core Ceramic	200 % Ir in 60 sec.	20 A - 30 A	125 VAC	–55 – +125
SF-3812TL-T	3812	Wire Core Ceramic	250 % Ir in 120 sec.	0.5 A - 5.0 A	250 VAC	–55 – +125
SF-3812TM-T	3812	Wire Core Ceramic	250 % Ir in 1 – 120 sec.	0.5 A - 2.0 A	600 VAC	–55 – +125
SF-3812SP-T	3812	Wire Core Ceramic	200 % Ir in 120 sec.	1.25 A	250 VAC	–55 – +125
SF-2923HC-C	2923	Ceramic Cube	250 % Ir in 1 min.	20 A - 50 A	60 VDC	–55 – +125

POWrTherm™ NTC Thermistors

Series	Disc Dia. (mm)	Resistance R25 (Ω)	I max. (A)	Max. Load Cap. 240 VAC (μF)	Pmax (W)	Operating Temp. TL - TU (°C)
BN-LG05Y	5	3.0~20	0.3~3.0	68~100	1.6	-40 to +150
BN-LG08Y	8	2.5~30	0.5~4.0	100	2.0	-40 to +170
BN-LG10Y	10	1.0~120	1.0~5.0	150~390	2.3	-40 to +170
BN-LG13Y	13	1.0~50	2.0~7.0	330~560	3.2	-40 to +200
BN-LG15Y	15	1.3~220	1.0~8.0	470~1500	3.7	-40 to +200
BN-LG20Y	20	0.7~120	2.0~13	1000	4.9	-40 to +200
BN-LG25Y	25	1.0~20	5.0~15	1200	7.0	-40 to +200

Multifuse® Polymer PTC Resettable Fuses - AEC-Q200 Compliant

Series	Type	Footprint	Vmax	Ihold (A)	Operating Temp. (°C)	Agency Certificates
MF-PSHT	Surface Mount	805	12 - 16 Vdc	0.05 - 0.50	-40 – +125	cUL E174545 / TÜV R 50384138
MF-NSMF	Surface Mount	1206	6 – 60 Vdc	0.05 – 2.00	-40 – +85	cUL: E174545 / TÜV: R 50256634
MF-NSHT	Surface Mount	1206	12 - 30 Vdc	0.10 - 0.75	-40 – +125	cUL E174545 / TÜV R 50384138
MF-USMF	Surface Mount	1210	13.2 – 30 Vdc	0.05 - 0.50	-40 – +85	cUL: E174545 / TÜV: R 50256634
MF-USHT	Surface Mount	1210	12 - 36 Vdc	0.10 - 2.0	-40 – +125	cUL E174545 / TÜV R 50384138
MF-MSMF	Surface Mount	1812	12 – 60 Vdc	0.10 - 2.60	-40 – +85	cUL: E174545 / TÜV: R 50256634
MF-MSHT	Surface Mount	1812	9 - 42 Vdc	0.2 - 1.75	-40 – +125	cUL E174545 / TÜV R 50384138
MF-LSMF	Surface Mount	2920	24 – 33 Vdc	1.85 - 3.00	-40 – +85	cUL: E174545 / TÜV: R 50256634
MF-SM	Surface Mount	Refer to Data Sheet	6 – 60 Vdc	0.3 – 3.0	-40 – +85	cUL: E174545 / TÜV: R 50362083
MF-SMHT	Surface Mount	Refer to Data Sheet	16 Vdc	1.36 - 3.00	-40 – +125
MF-R	Radial Leaded Through Hole	Refer to Data Sheet	16 – 60 Vdc	0.05 - 11.0	-40 – +85	cUL: E174545 / TÜV: R 50366745
MF-RG	Radial Leaded Through Hole	Refer to Data Sheet	16 Vdc	3.0 - 11.0	-40 – +85	cUL: E174545
MF-RHT	Radial Leaded Through Hole	Refer to Data Sheet	16 – 32 Vdc	0.5 - 13.0	-40 – +125
MF-DC	Metal Terminal	Refer to Data Sheet	16 Vdc	50	-40 – +125	Available Upon Request

Fuse Blocks

Series	Fuse Range (A)	Tolerances	Temperature Coefficient	Physical Configuration
CFB	100-400	N/A	±15 PPM/°C	Fuse Blocks
FB	110-400	N/A	±15 PPM/°C	Fuse Blocks
NFB	N/A	N/A	±15 PPM/°C	Fuse Blocks
NFB2	N/A	N/A	±15 PPM/°C	Fuse Blocks

Ceramic PTC Resettable Fuses

Series	Type	Rated Voltage	Ihold (A)	Agency Certificates
CMF-RC	Radial Leaded	12 VDC - 1000 VAC	0.008 - 2.1	Request
CMF-RL	Radial Leaded	60 VDC - 230 VAC	0.05 - 0.14	UL-1434 (file no. E307915)
CMF-SDP	Surface Mount	230 VAC	0.07 - 0.18	UL-1434 (file no. E307915)

Multifuse® Polymer PTC Resettable Fuses - Surface Mount (SMD) Standard Series

Series	Footprint	Vmax	Ihold (A)	Operating Temp. (°C)	Agency Certificates
MF-FSMF	603	6 – 15 Vdc	0.10 - 0.50	-40 – +85	cUL: E174545 / TÜV: R 50256634
MF-PSMF	805	6 – 24 Vdc	0.10 - 1.10	-40 – +85	cUL: E174545 / TÜV: R 50256634
MF-NSMF	1206	6 - 60 Vdc	0.05 - 2.00	-40 – +85	cUL: E174545 / TÜV: R 50256634
MF-USMF	1210	13.2 - 30 Vdc	0.05 - 0.50	-40 – +85	cUL: E174545 / TÜV: R 50256634
MF-MSMF	1812	12 - 60 Vdc	0.1 - 2.6	-40 – +85	cUL: E174545 / TÜV: R 50256634
MF-SMDF	2018	10 – 60 Vdc	0.30 - 2.60	-40 – +85	cUL: E174545 / TÜV: R 50256634
MF-LSMF	2920	24 - 33 Vdc	1.85 - 3.00	-40 – +85	cUL: E174545 / TÜV: R 50256634
MF-GSMF	3425	36 Vdc	3.0	-40 – +85	cUL: E174545 / TÜV: R 50256634
MF-SM	Refer to Data Sheet	6 – 60 Vdc	0.3 – 3.0	-40 – +85	cUL: E174545 / TÜV: R 50362083
MF-SM/250	Refer to Data Sheet	60 Vdc / 250 Vac	0.08 – 0.13	-40 – +85	cUL: E174545 / TÜV: R 50362083
MF-SM/250V	Refer to Data Sheet	60 Vdc / 250 Vac	0.13	-40 – +85	cUL: E174545 / TÜV: R 50362083
MF-SD/250	Refer to Data Sheet	60 Vdc / 250 Vac	0.13	-40 – +85	cUL: E174545

Multifuse® Polymer PTC Resettable Fuses - Surface Mount (SMD) Low Ohmic Series

Series	Footprint	Vmax	Ihold (A)	Operating Temp. (°C)	Agency Certificates
MF-ASML/X	402	6 Vdc	0.10 - 0.75	-40 – +85	cUL: E174545 / TÜV: R 50391579
MF-FSML/X	603	6 – 8 Vdc	0.35 - 3.00	-40 – +85	cUL: E174545 / TÜV: R 50391579
MF-PSML/X	805	6 – 12 Vdc	0.75 - 4.50	-40 – +85	cUL: E174545 / TÜV: R 50391579
MF-NSML/X	1206	6 – 12 Vdc	1.5 - 6.0	-40 – +85	cUL: E174545 / TÜV: R 50391579
MF-USML/X	1210	6 – 12 Vdc	1.75 - 7.0	-40 – +85	cUL: E174545 / TÜV: R 50391579

Multifuse® Polymer PTC Resettable Fuses - Surface Mount (SMD) High Temperature Series

Series	Footprint	Vmax	Ihold (A)	Operating Temp. (°C)	Agency Certificates
MF-FSHT	603	12 Vdc	0.05 - 0.16	-40 – +125	cUL: E174545 / TÜV: R 50384138
MF-PSHT	805	12 – 16 Vdc	0.05 - 0.50	–40 – +125	cUL: E174545 / TÜV: R 50384138
MF-NSHT	1206	12 - 30 Vdc	0.10 - 0.75	–40 – +125	cUL: E174545 / TÜV: R 50384138
MF-USHT	1210	12 - 36 Vdc	0.10 - 2.0	–40 – +125	cUL: E174545 / TÜV: R 50384138
MF-MSHT	1812	9 - 42 Vdc	0.2 - 1.75	-40 – +125	cUL: E174545 / TÜV: R 50384138
MF-SMHT	Refer to Data Sheet	16 Vdc	1.36 - 3.00	-40 – +125

Multifuse® Polymer PTC Resettable Fuses - Radial Leaded, Through-hole Series

Series	Vmax	Ihold (A)	Operating Temp. (°C)	Agency Certificates
MF-R	16 – 60 Vdc	0.05 - 11.0	-40 – +85	cUL: E174545 / TÜV: R 50366745
MF-RG	16 Vdc	3.0 - 11.0	-40 – +85	cUL: E174545
MF-RX/72	72 Vdc	0.2 - 3.75	-40 – +85	cUL: E174545 / TÜV: R 50366745
MF-RHT	16 – 32 Vdc	0.5 - 13.0	-40 – +125	cUL: E174545 / TÜV: R 50494578
MF-RHS	16 Vdc	3.5 - 13.0	-40 – +125	cUL: E174545
MF-RM	240 Vac / 265 Vac	0.05 - 0.55	-20 – +85	cUL: E174545 / TÜV: R 50232433
MF-RX/250	60 Vdc / 250 Vac	0.12 - 0.18	-40 – +85	cUL: E174545 / TÜV: R 50260658

Multifuse® Polymer PTC Resettable Fuses - Customized and DC Motor Series

Photo	Series	Vmax	Ihold (A)	Operating Temp. (°C)	Agency Certificates	Data Sheet
	MF-D	15 Vdc	2.5 - 12.2	-40 – +85	cUL: E174545
	MF-DC	16 Vdc	50	-40 – +125	Available Upon Request

Multifuse® Polymer PTC Resettable Fuses - Axial Leaded (Strap) Series

Series	Vmax	Ihold (A)	Operating Temp. (°C)	Agency Certificates
MF-LR	10 – 20 Vdc	1.9 - 9.0	-40 – +85	cUL: E174545 / TÜV: R 50410733
MF-LS	24 Vdc	1.0 - 3.4	-40 – +85	cUL: E174545 / TÜV: R 50410733
MF-S	15 – 30 Vdc	1.2 - 4.2	-40 – +85	cUL: E174545 / TÜV: R 50410733
MF-SVS	10 – 16 Vdc	1.7 - 2.7	-40 – +85	cUL: E174545 / TÜV: R 50410733
MF-VS	16 Vdc	1.7 - 2.1	-40 – +85	cUL: E174545 / TÜV: R 50410733
MF-VS Narrow Body	12 Vdc	1.7 - 2.1	-40 – +85	cUL: E174545 / TÜV: R 50410733

POWrFuse™ High-Power Fuses - Electric Vehicle

Photo	Series	Dimension (mm)	Rated Current	Rated Voltage	Interrupting Rating	Mounting Type	Data Sheet
	PF-K	10 dia. X 38	15-50 A	275 VAC / 500 VDC	10 kA @ 275 VAC, 20 kA @ 500 VDC, 10 kA @ 450 VDC	Bolt Down, PCB

POWrFuse™ High-Power Fuses - Industrial

Series	Dimension (mm)	Rated Current	Rated Voltage	Interrupting Rating	Mounting Type
PF-G	14 dia. X 38	63 A, 90 A	600 VAC, 125 VDC, 500 VAC	500 A @ 600 VAC, 2000 A @ 250 VAC, 500 A @ 125 VDC, 1500 A @ 500 VAC	PCB
PF-H (Ind)	10 dia. X 38	6-12 A	600 VAC, 600 VDC	100 kA @ 600 VAC, 100 kA @ 600 VDC	Ferrule, PCB
PF-J	10 dia. X 38	30-70 A	500 VAC, 125 VDC	2000 A @ 500 VAC, 2000 A @ 250 VAC, 1000 A @ 125 VDC	PCB

POWrFuse™ High-Power Fuses - Photovoltaic

Photo	Series	Dimension (mm)	Rated Current	Rated Voltage	Interrupting Rating	Mounting Type	Data Sheet
	PF-E	10 dia. x 38	15-30 A	1000 VDC	20 kA @1000 VDC	Ferrule, PCB
	PF-H (gPV)	10 dia. x 38	15-30 A	600 VAC, 600 VDC	150 kA @ 600 VAC, 50 kA @ 600 VDC, 10 kA @ 600 VDC	Ferrule, PCB

POWrFuse™ High-Power Fuses - Semiconductor

Photo	Series	Dimension (mm)	Rated Current	Rated Voltage	Interrupting Rating	Mounting Type	Data Sheet
	PF-F	24 dia. X 91, 35 dia. X 95	50-400 A	800 VAC, 800 VDC	100 kA @ 800 VAC, 50 kA @ 800 VDC	Bolt Down
	PF-M	17.2 dia. X 42	50-180 A	240 VAC, 150 VDC	160 kA @ 240 VAC, 50 kA @ 150 VDC	Bolt Down

POWrFuse™ High-Power Fuses - Telecom

Photo	Series	Dimension (mm)	Rated Current	Rated Voltage	Interrupting Rating	Mounting Type	Data Sheet
	PF-N	14 dia. X 22	40-80 A	170 VDC	100 kA @ 170 VDC	PCB

Overcurrent protection for switch cabinets and control systems

Overcurrent protection devices in the electronics industry consist of various components that work together to protect electrical systems from overload. One commonly used technology is the use of resettable fuses, which break the circuit in overcurrent conditions to prevent overload. These fuses can be automatically reset after the overcurrent situation has been rectified. Polymer PTC resettable fuses and ceramic PTC fuses are common solutions used in circuits and components to ensure reliable protection. High-speed protection components such as TBU® High-Speed Protectors also protect against sudden voltage peaks and thus minimize the risk of damage to sensitive electronics.

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Our range of other circuit protection components:

Surge protection devices

Temperature fuse

Overvoltage protection

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Overcurrent protection for cable connections in power systems

Overcurrent protection solutions are used in numerous applications in the electronics industry to ensure the safety and longevity of systems. In telecommunications, TBU® High-Speed Protectors are used to protect sensitive equipment from overvoltages and overcurrents that can be caused by lightning strikes or sudden changes in current. In industrial control systems, ceramic PTC Resettable Fuses protect machines and electrical equipment from overload by breaking the circuit when excessive currents occur, preventing costly breakdowns and damage.

Another example is the use of Multifuse® Polymer PTC Resettable Fuses in power supplies for electric vehicles and renewable energy systems to keep the power supply stable and prevent overcurrent conditions. These protective components also provide reliable protection for sensitive circuits and components when used in high-performance electronics, such as in medical devices or in the automotive industry. This not only extends the service life of the devices, but also ensures safety.

Overcurrent protection solutions for electronic systems

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Sales- and Productmanagement

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Overcurrent protection

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Further information on overcurrent protection

In this section, we answer the most frequently asked questions about overcurrent protection. Our solutions offer reliable safety for your electronic systems, machines and circuits. Here you can find out more about how they work, where they are used and the benefits of overcurrent protection technologies. If you have any further questions, please do not hesitate to contact us.

What is overcurrent protection and why is it important?

Overcurrent protection is a technology developed to protect electrical devices and circuits from the negative effects of excessive current flow. If the current flow in a system becomes too high, components can overheat and be damaged, which can lead to failures or even fires. Overcurrent protection...

How does overcurrent protection work in electronic devices?

Overcurrent protection in electronic devices is achieved using special components such as resettable fuses or high-speed protectors. These components monitor the current flow and interrupt the circuit as soon as a dangerously high current is detected. Ceramic PTC Resettable Fuses and Multifuse® Pol...

What are the advantages of overcurrent protection in industry?

Overcurrent protection in industry not only protects machines and control systems from damage, but also ensures increased operational safety. In industrial applications, ceramic PTC Resettable Fuses and TBU® High-Speed Protectors are used to ensure that immediate protective measures are taken in th...

Where is overcurrent protection used in electric vehicles?

In electric vehicles, overcurrent protection is essential to protect sensitive electrical systems and the battery from overloads. Multifuse® Polymer PTC Resettable Fuses are commonly used in the power supply to protect the vehicle battery and electrical control units. These solutions prevent damage...

What overcurrent protection solutions are available for telecommunications systems?

High-speed protection components such as TBU® High-Speed Protectors are particularly important for telecommunication systems as they provide protection against sudden voltage spikes caused by external influences such as lightning strikes or sudden changes in current. These components interrupt the ...

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