Wire resistors

Precise electrical properties and exceptional temperature stability
Robust mechanical design with high pulse and overcurrent resistance
Broad portfolio of designs with internationally recognized safety and environmental certificates

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in the electrical engineering and electronics industry

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Dual location strength and reliability

Wirewound resistors from VPG Foil Resistors and Bourns

Wirewound

Min. Resistance (Ω)	1-500m, 5-50
Max. Resistance (Ω)	1-500, 5-100m, 5M, 1-150K
Tolerance (±%)	0,01-10
TCR (±ppm/°C)	0,2-100
Rated Power (W)	5-2500
Typical Load Life Stability (±%)	0,01-1

Wirewound product range

Fusible

Resistance Range	0,1-1-1K Ω, 0,01-3K Ω, 0,1-4K Ω, 0,1-8K Ω, 0,01-0,1-15K Ω, 0,05 to 16K Ω, 0,05 to 22K Ω, 0,05 to 33K Ω, 0,05 to 50K Ω, 0,05 to 70K Ω, 0,01 - 50K Ω, 0,01 - 250K Ω
Tolerances	1 %. 5 %. 10 %, 0,5 %.1 %. 5 %, 1 %. 5 %, 0,5 %. 1 %. 5 %, 0,05 % - 5 %, 0,01 % - 10 %
Power (Watts)	60-100 - 500 W, 0,5-10 W, 0,5 - 4 W, 7,5 - 50 W, 20 - 100 W
Profile/Package Style	High Power Metal Clad Braking Resistor, Slim Profile High Power Metal Clad Braking Resistor, Surface Mount Wirewound, Aluminum Housed Wirewound, High Power Ceramic Wirewound Resistor

Fusible product range

Through-Hole Leaded

Resistance Range	0,1-1-1K Ω, 0,01-3K Ω, 0,1-4K Ω, 0,1-8K Ω, 0,01-0,1-15K Ω, 0,05 to 16K Ω, 0,05 to 22K Ω, 0,05 to 33K Ω, 0,05 to 50K Ω, 0,05 to 70K Ω, 0,01 - 50K Ω, 0,01 - 250K Ω
Tolerances	1 %. 5 %. 10 %, 0,5 %.1 %. 5 %, 1 %. 5 %, 0,5 %. 1 %. 5 %, 0,05 % - 5 %, 0,01 % - 10 %
Power (Watts)	60-100 - 500 W, 0,5-10 W, 0,5 - 4 W, 7,5 - 50 W, 20 - 100 W
Profile/Package Style	High Power Metal Clad Braking Resistor, Slim Profile High Power Metal Clad Braking Resistor, Surface Mount Wirewound, Aluminum Housed Wirewound, High Power Ceramic Wirewound Resistor

Through-Hole Leaded product range

Low resistance values Wire resistors for precise measurements in electronics

Wirewound resistors are essential components in electronics that are used to regulate the flow of current in a circuit. They consist of a thin wire wound around a core and offer high precision and stability, even under extreme conditions. These resistors are particularly in demand in applications where high performance and durability are required.

Wirewound resistors for use in aviation and automotive technology

High-performance wirewound resistors with low TCR and high stability

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Wirewound resistors in our range

Wirewound

Series	Resistance Range	Tolerances	Temperature Coefficient	Power (Watts)	Profile/Package Style	MDS
FW Series Fusible	4.7 to 100 Ω	5,00 %	±200 ppm	1, 2, 3, 5, 7 W	Through-hole Axial Wirewound	FW Series
W Series	15 to 150 Ω	5,00 %	±300 ppm	1-10 W	Through-hole Axial Wirewound	W Series
WS Series Surge Withstand	15 to 3.3K Ω	5,00 %	±200 ppm	1-8 W	Through-hole Axial Wirewound
HPP	10 - 20K Ω	2 % - 10 %	±20 - ±150 ppm	3 - 10 W	Through-hole Wirewound	HPP
UB	0.02 - 260K Ω	0.01 % - 10 %	±20 - ±150 ppm	1 - 15 W	Through-hole Wirewound	UB
UT	0.02 - 320K Ω	0.01 % - 10 %	±20 - ±150 ppm	0.1 - 15 W	Through-hole Wirewound	UT
UV	0.01 - 91K Ω	0.01 % - 10 %	±20 - ±150 ppm	2 - 10 W	Ceramic Wirewound	UV
UW	0.01 - 91K Ω	0.01 % - 10 %	±20 - ±150 ppm	2 - 15 W	Ceramic Wirewound	UW

Fusible

Photo	Series	Resistance Range	Tolerances	Temperature Coefficient	Power (Watts)	MDS	Data Sheet
	FW Series Fusible	4.7 to 100 Ω	5 %	±200 ppm	1, 2, 3, 5, 7 W	FW Series

Through-Hole Leaded

Product Name	Min. Resistance (Ω)	Max. Resistance (Ω)	Tolerance (±%)	TCR (±ppm/°C)	Rated Power (W)	Typical Load Life Stability (±%)
303143	10	100K	0.005	0.2	0.6	0.01
303143L	10	100K	0.005	0.2	0.6	0.01
AN	80.6	92K	0.01	2	0.5	0.01
AUR	5	60K	0.01	0.2	0.3	0.01
AUR2	60K	120K	0.02	0.2	0.3	0.01
Burden Resistor	1	500	0.005	0.2	0.6	0.01
E102C	150K	300K	0.005	2	0.6	0.005
E102J	150K	300K	0.005	2	0.6	0.005
E102JZ	100K	200K	0.005	0.2	0.6	0.005
E102K	150K	300K	0.005	2	0.6	0.005
E102L	150K	300K	0.005	2	0.6	0.005
E102Z	100K	200K	0.005	0.2	0.6	0.005
FLA	10	100K	0.05	2.5	0.125	0.01
FLB	10	150K	0.05	2.5	0.25	0.01
FLC	10	200K	0.01	2.5	0.25	0.01
GST1210	1M	100G	0.5	25	0.5	0.5
GST25	1M	100G	2	50	0.7	0.5
GST2512	1M	1T	0.5	25	1	0.5
GST4020	1M	1T	0.25	25	2	0.5
HTE102	1K	700M	0.01	100	10	0.7
HTE127	1K	700M	0.01	100	12	0.7
HTE15	1K	700M	0.01	100	0.7	0.7
HTE152	1K	700M	0.01	100	15	0.7
HTE19	1K	700M	0.01	100	1	0.7
HTE24	1K	700M	0.01	100	2	0.7
HTE25	1K	700M	0.01	100	1.2	0.7
HTE39	1K	700M	0.01	100	3	0.7
HTE52	1K	700M	0.01	100	5	0.7
HTE76	1K	700M	0.01	100	7.5	0.7
HVR25	1M	1T	0.25	25	1	1
HVR30	1M	1T	0.25	25	1	1
HVR40	1M	1T	0.25	25	1.2	1
HVR50	1M	10T	0.25	25	3	1
MA	1	200K	0.005	2.5	0.6	0.015
MATF	200K	10M	0.01	1	0.4	0.01
MB	5	400K	0.005	2.5	1	0.015
MC	1	200K	0.005	2.5	0.6	0.015
MCTF	200K	10M	0.01	1	0.4	0.01
MD	5	80K	0.005	2.5	0.25	0.015
MF2207	1	10M	0.05	3	0.4
MF2617	3	10M	0.05	10	0.65
MF50	10	22M	0.1	15	0.16
MF55	10	22M	0.1	15	0.25
MF60	10	22M	0.1	15	0.5
MF65	10	22M	0.1	15	1
MF70	10	22M	0.1	15	2
MFM2207	1	5M	0.05	5	0.4
MG55	50K	1G	0.5	50	0.25
MG60	1K	1G	0.5	50	0.5
MG65	1K	1G	0.5	50	1
MG70	1K	2G	0.5	50	2
MG75	1K	2G	0.5	50	3
MP50	10	1.5M	0.025	5	0.125
MP55	10	3M	0.025	5	0.25
MP60	10	3M	0.025	5	0.5
MP65	10	3M	0.025	5	0.75
MP70	10	3M	0.025	5	1
MT	0.003	0.1	0.1	20	10
PB	400m	50K	0.01	2.5	10	0.01
PC	2m	50K	0.01	2.5	10	0.01
PD	100m	10K	0.02	2.5	8	0.01
PZ102	1	250K	0.005	1.5	1.2	0.025
PZ102J	1	250K	0.005	1.5	1.2	0.025
RCK02	1	150K	0.005	2	0.6	0.015
RCK04	1	500K	0.005	2	1	0.015
RCK05	1	750K	0.005	2	1.5	0.015
RCK06	500m	1M	0.005	2	2	0.015
RNC90S	4.99	121K	0.005	2	0.6	0.05
RNC90T	4.99	121K	0.005	5	0.6	0.05
RNC90Y	4.99	121K	0.005	5	0.6	0.05
RNC90Z	4.99	121K	0.005	2	0.6	0.05
RS92N	80.6	120K	0.01	2	0.5	0.01
RS92NA	80.6	120K	0.01	2	0.5	0.01
S102C	1	150K	0.005	1	0.6	0.015
S102J	1	150K	0.005	1	0.6	0.015
S102K	1	100K	0.005	1	0.6	0.015
S102L	1	100K	0.005	1	0.6	0.015
S104D	1	500K	0.005	1	1	0.015
S104F	1	500K	0.005	1	1	0.015
S104K	1	300K	0.005	1	1	0.015
S104L	1	300K	0.005	1	1	0.015
S105D	1	750K	0.005	1	1.5	0.015
S105F	1	750K	0.005	1	1.5	0.015
S105K	1	750K	0.005	1	1.5	0.015
S105L	1	750K	0.005	1	1.5	0.015
S106D	500m	1M	0.005	1	2	0.015
S106K	500m	600K	0.005	1	2	0.015
S555	1	150K	0.005	5	0.6	0.05
TLA	100K	5M	0.05	5	0.125	0.01
TLC	200K	10M	0.02	5	0.25	0.01
UNR 2-1410	1	100	0.01	3	0.8	0.01
UNR 2-T220B	500m	5K	0.01	3	10	0.01
UNR 2-T221	500m	5K	0.01	3	10	0.01
USR 2-1410	1	300K	0.01	3	0.8	0.01
USR 2-T220B	500m	150K	0.01	3	6	0.01
USR 2-T221	500m	150K	0.01	3	6	0.01
VAR	10	100K	0.01	0.2	0.4	0.005
VFP3	100m	80K	0.01	2	10	0.005
VMTA55	5	30K	0.01	5	0.2	0.05
VMTA55Z	5	30K	0.01	0.2	0.2	0.005
VMTB60	5	60K	0.01	5	0.25	0.05
VMTB60Z	5	60K	0.01	0.2	0.25	0.005
VPR220	5	10K	0.01	2	8	0.05
VPR220S	5	10K	0.01	2	8	0.05
VRM	5	30K	0.01	8	0.16	0.05
VSA101	5	100K	0.005	0.2	0.6	0.01
VSC1	5	60K	0.01	2	0.3	0.01
VSC2	60K	120K	0.01	2	0.3	0.01
VSC2Z	5	120K	0.01	0.2	0.3	0.01
VSH1	5	60K	0.01	2	0.3	0.01
VSH1Z	5	120K	0.01	0.2	0.3	0.01
VSH2	60K	120K	0.01	2	0.3	0.01
VSR	1	150K	0.01	8	0.3	0.005
VSR4	1	500K	0.005	8	0.5	0.005
VSR5	1	750K	0.005	8	0.75	0.005
VSR6	500m	1M	0.005	8	1	0.005
VSRJ	1	150K	0.01	8	0.25	0.005
VTA52	5	500K	0.01	5	1	0.05
VTA52Z	5	300K	0.01	0.2	1	0.005
VTA53	5	300K	0.01	5	0.66	0.05
VTA53Z	5	200K	0.01	0.2	0.66	0.005
VTA54	5	300K	0.01	5	0.5	0.05
VTA54Z	5	200K	0.01	0.2	0.5	0.005
VTA55	5	150K	0.01	5	0.3	0.05
VTA55Z	5	100K	0.01	0.2	0.3	0.005
VTA56	5	150K	0.01	5	0.25	0.05
VTA56Z	5	100K	0.01	0.2	0.25	0.005
VTA57Z	5	100K	0.01	0.2	0.25	0.005
Z201	5	100K	0.005	0.2	0.6	0.005
Z201HT	10	100K	0.01	1	0.1	0.1
Z202	5	30K	0.01	0.2	0.25	0.01
Z203	10	100K	0.005	0.2	0.6	0.005
Z204	5	200K	0.005	0.2	1	0.005
Z205	5	300K	0.005	0.2	1.5	0.005
Z206	5	600K	0.005	0.2	2	0.005
Z555	4.99	121K	0.005	2	0.6	0.05

Wire resistors with high pulse strength for telecommunication devices

In close cooperation with leading manufacturers such as Bourns and VPG Foil Resistors, Rotima AG offers a wide range of wirewound resistors optimized for various industrial, medical and telecommunication applications. Our products are characterized by their high pulse strength, precise tolerances and excellent temperature stability - properties that are essential for the reliable functioning of your electronic systems.

Wirewound resistors for audio and medical devices with high reliability

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Our range of other resistors:

Power resistors

Current measuring resistors / shunts

Chip resistors

Axial wirewound resistors for industrial applications and smart meters

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Wire resistors with epoxy resin-coated encapsulation for environmental protection

Whether in telecommunications, medical or industrial applications, wirewound resistors from Bourns and VPG Foil Resistors offer the solution for your most demanding requirements. Rely on our years of experience as an electronics distributor to find the best resistors for your projects.

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Further information on wirewound resistors

Wirewound resistors are precise and resilient components that are used in numerous applications such as telecommunications, medical technology and industry. In this section, you will learn how they work, what differences there are to SMD resistors and why they are particularly valued in critical applications. You will also receive practical tips on selecting the right wirewound resistor - tailored to the power, design and environmental influences.

What are wirewound resistors and how do they work?

Wirewound resistors are electronic components that are used to control the flow of current in an electrical circuit. They consist of a wire wound around a core and offer high precision and stability. The wire materials are usually resistor alloys that are specifically designed to provide precise an...

How are wirewound resistors used in telecommunications?

In telecommunications, wirewound resistors are often used in base stations and other high-frequency systems to regulate current flow and attenuate pulses. Their high pulse strength and low inductance are particularly beneficial for these applications as they help to minimize signal interference and...

What is the difference between wirewound resistors and SMD resistors?

The main difference between wirewound resistors and SMD (surface mount devices) resistors lies in the design and the way they are mounted. Wirewound resistors are manufactured with axial wire connections that are inserted through holes in a circuit board and then soldered. This design ensures high ...

Why are wirewound resistors important for medical devices?

Wirewound resistors play a crucial role in medical technology as they enable precise measurement of currents and voltages. In medical devices, such as ECG monitors or other diagnostic tools, accurate resistance values are required to ensure the reliability and accuracy of measurements. Wirewound re...

How do you select the right wirewound resistor for your application?

The choice of the right wirewound resistor depends on several factors, such as the required resistance value, the power that needs to be dissipated and the environment in which the resistor is to operate. Other important criteria are the tolerance of the resistor, the temperature coefficient (TCR) ...