Transformer & transformer
Our official distribution partner: Bourns, Inc.
Bourns, Inc. is a leading manufacturer and supplier of electronic components headquartered in Riverside, California. Since its founding in 1947 by Marlan and Rosemary Bourns, the company has grown to serve a variety of markets including automotive, industrial electronics, consumer electronics, communications, non-essential medical and audio.
As an official Bourns distributor, we are pleased to offer our customers access to these high quality and reliable components.
As an official Bourns distributor, we are pleased to offer our customers access to these high quality and reliable components.
Product range of our transformers & transformers
Our transformers & transformers cover a wide range of applications - from power electronics and signal transmission to automotive technology.
Whether power transformers, planar transformers, AEC-Q200-compliant components or chip LAN transformers - we offer high-quality solutions for a wide range of requirements.
Here you will find an overview of our products with detailed specifications and data sheets for download.
Whether power transformers, planar transformers, AEC-Q200-compliant components or chip LAN transformers - we offer high-quality solutions for a wide range of requirements.
Here you will find an overview of our products with detailed specifications and data sheets for download.
Chip LAN
| Mount | SMT |
| Ethernet | 1/2.5/5G, 10/100 Base-Tx, 2,5-10 GbE, 5-10 GbE. PoE+, 10/100/1000, 10/100/1000 Base-T, 10G, 1/2.5/5GbE. PoE+ |
| Dimensions | 3,5 x 3.2 x 2.9 mm, 8,67 x 12.7 x 4 mm, 14,6 x 17.53 x 4.5 mm, 10,3 x 16.5 x 4.1 mm, 4,7 x 3.3 x 2.9 mm, 4,7 x 3.3 x 2.9 mm |
Signal
| Mount | Leaded, SMT |
| Temperature Range | 125 °C |
| Dimensions | 12,8 x 9.3 x 5.65 mm, 17,62 x 16 x 6 mm , 13,56 x 18.65 x 5.79 mm, 24,15 x 18.2 x 12.8 mm, 27,8 x 10.8 x 8.35 mm, 3,5-4,7 x 3.2 x 2.9 mm, 8,67 x 12.7 x 4 mm, 14,6 x 17.53 x 4.5 mm, 4,7 x 3.2 mm |
| Ethernet | , LAN 10/100 Base-Tx, LAN 10/100/1000 Base-T, 10/100/1000 Base-T, LAN 10/100 Base-T, 10/100 BASE TX LAN PoE, 10/100/1000 Base-T LAN PoE++, 10/100 Base-Tx with Common Mode Chokes, 5GbE, PoE+, 10 GbE, 10 GbE, PoE+, 10G, 10 GbE, 1/2.5/5G, 1 / 2.5 / 5 GbE, PoE+, 100Base-T |
BMS - AEC-Q200 Compliant
| Mount | SMT |
| Temperature Range | 125 °C |
| Voltage | 4-4,3k VAC, 4,3-6,4k VDC, 4,3k Vdc, 4300 VDC |
| Channel Mode | Dual Channel, Single Channel, |
SP-E Flyback Transformers
| Platform | E 16/5, E 20/6 |
| Power | 3-22 W |
| Input Voltage | 85-265 VAC |
| Primary Inductance | 3.9 mH ± 10 %, 1.55 mH ± 15 %, 0.89 mH ± 10 %, 1.58 mH ± 12 %, 0.94 mH ± 10 % |
| Output 1 | 6 V / 0.25 A, 12 V / 0.25 A, 12 V / 0.37 A, 6 V / 0.65 A, 12 V / 0.9 A, 6 V / 1.8 A, 12 V / 1.2 A |
| Output 2 | 6 V / 0.25 A, 12 V / 0.25 A, 12 V / 0.37 A, 6 V / 0.65 A, 12 V / 0.9 A, 6 V / 1.8 A, 5 V / 1.4 A |
| Creepage | ≥ 8 mm |
HCT
| Size | 14.2 x 10.6 x 8.0 mm, 15.7 x 10.8 x 7.5 mm, 19.6 x 13.5 x 9.6 mm, 21.3 x 15 x 9.6 mm, 15.2 x 10.8 x 6.5 mm |
| Input Voltage | 3.3 - 5 VDC, 5 VDC |
| Output Voltage | 3.3 - 15 VDC, 15 VDC |
| Output Current | 0.35 A Peak, 0.25 A |
| Frequency | 250 - 550 kHz, 250~550 kHz |
| Primary/Secondary Turns Ratio | Various, 1:3 |
HCT - AEC-Q200 Compliant
| Size | 15.2 x 10.8 x 6.5 mm, 14.2 x 10.6 x 8.0 mm, 19.6 x 13.5 x 9.6 mm |
| Input Voltage | 3.3 - 5 VDC, 5 V |
| Output Voltage | 3.3 - 15 VDC, 15 V |
| Output Current | 0.35 A Peak, 0.25 A |
| Frequency | 250 - 550 kHz, 250~550 kHz |
| Primary/Secondary Turns Ratio | Various, 1:3 |
Power - AEC-Q200 Compliant
| Size | 16.9 x 10.5 x 5.97 mm, 10.3 x 9.5 x 12.2 mm, 12.8 x 10 x 7.0 mm |
| input Voltage | 7 - 24 VDC, 6-27 VDC, 10-24 VDC |
| Output Voltage | 14-15 VDC |
| Output Current | 0,1-0,2 A |
| Frequency | 120-400 kHz, 12 kHz - 400 kHz |
| Primary/Secondary Turns Ratio | 1 : 0.77, 1 : 1, Np:Ns1 5:4Np:Ns2 5:1 |
Planar
| Size | 22.7 x 26 x 9.8 mm, 22.5 x 20.5 x 7.5 mm, 34.3 x 23 x 7.45 mm |
| Input Voltage | 33 – 57 VDC, 36 – 72 VDC, 33 - 57 VDC |
| Output Voltage | 5-12 VDC, 3,3 – 24 VDC |
| Output Current | 4 A, 10 A, 2.4 – 18 A, 14 A, 2.9 – 21 A, 5 A, 2.1 A |
| Frequency | 200-250 kHz |
| Primary/Secondary Turns Ratio | 1.6 : 1, 4 : 1, Various, 5 : 2, 1 : 1 |
Power
| Input Voltage | 500-800 Vrms, 10-24 V, 33-40-57 V, 36-72 V, 85-265 V, 7 - 24 VDC, 4,5 - 60 V, 6-27 VDC, 10-24 VDC, 3,3 - 5 VDC, 33-42,5 - 57 VDC, 36 - 72 VDC, 100 - 375 VDC, 10,5-13.2 V |
| Output Voltage | Various, 3.3 V, 5 V, 12 V, 4.3 V, 53 V, 15 VDC, 6 - 28 V, 14 VDC, 3.3 - 15 VDC, 15 V, 3.3 / 10 VDC, 5 VDC, 12 VDC, 3.3 / 5 / 10.5 VDC, 5 / 5 VDC, 12 / 12 VDC, 10.5 - 13.2 V |
| Output Current | 0,1-40 A, 25-500 mA, 0,35 A Peak, 3,3 / 0.01 A, 2,5 / 3.8 / 0.06 A, 7 / 7 A, 3 / 3 A |
| Frequency | 10 kHz - 1 MHz, 500 kHz, 250 kHz, 200 kHz, 100 kHZ, 120 kHz, 100 kHz, 12 kHz - 400 kHz, 400 kHz, 250 - 550 kHz, 100 - 500 kHz, 220 kHz, 50kHz, 410 kHz |
Transformers & transformers for power electronics
Buy transformers & transformers
- Efficient voltage adjustment & signal transmission
- Versatile designs & areas of application
- Versatile in use
- Quality through strong partnership
Application examples for transformers & transformers
Transformers and transformers play a central role in numerous electronic applications. In power electronics, power transformers are essential for switching power supplies and DC/DC converters. They ensure efficient voltage matching and galvanic isolation in order to operate devices safely and energy-efficiently.
In the automotive industry, AEC-Q200-compliant transformers are indispensable, especially for battery management systems (BMS) in electric vehicles. They ensure reliable signal transmission between the control units and the battery cells, which optimizes vehicle safety and performance.
Specialized components such as chip LAN transformers, which ensure interference-free network connections in routers, switches and other IT devices, can also be found in communication technology.
As a distributor of high-quality transformers and transformers, Rotima AG, in cooperation with Bourns, offers customized solutions for industry, automotive and telecommunications - always with the highest quality standards and reliable performance.
In the automotive industry, AEC-Q200-compliant transformers are indispensable, especially for battery management systems (BMS) in electric vehicles. They ensure reliable signal transmission between the control units and the battery cells, which optimizes vehicle safety and performance.
Specialized components such as chip LAN transformers, which ensure interference-free network connections in routers, switches and other IT devices, can also be found in communication technology.
As a distributor of high-quality transformers and transformers, Rotima AG, in cooperation with Bourns, offers customized solutions for industry, automotive and telecommunications - always with the highest quality standards and reliable performance.
Do you have any questions about our offer?
Transformer & transformer
Transformer
Chip LAN
Transformer
SP-E Flyback Transformers
Transformer
HCT
Transformer
Signal
Transformer
BMS - AEC-Q200 Compliant
Transformer
HCT - AEC-Q200 Compliant
Transformer
Power - AEC-Q200 Compliant
Transformer
Planar
Transformer
Power
Do you have any questions about our offer?
Transformer & transformer
Transformers & transformers for reliable power and signal transmission
Transformers and transformers are essential components in modern electronics. They convert voltages, insulate circuits and ensure reliable power and signal transmission. Whether in power electronics, signal processing or automotive applications - nothing works without them.
As an experienced distributor, Rotima AG offers a wide range of transformers and transformers in cooperation with Bourns. Our products meet the highest quality standards and are optimized for demanding industrial, automotive and network-based applications. From power transformers and planar transformers to AEC-Q200 compliant components - we deliver solutions that impress.
As an experienced distributor, Rotima AG offers a wide range of transformers and transformers in cooperation with Bourns. Our products meet the highest quality standards and are optimized for demanding industrial, automotive and network-based applications. From power transformers and planar transformers to AEC-Q200 compliant components - we deliver solutions that impress.
Our range of other inductors:
Power Inductors
Power Inductors are high-performance, surface-mounted (SMD) electronic components used in high-current and high-voltage applications. These include SMD inductors, resistors and capacitors with high power handling capability, optimized for compact designs in power electronics, power supplies and industrial applications. They offer high efficiency, thermal stability and reliable performance.
Coil Inductors
Coil inductors are a technology for signal transmission in surface-mounted (SMD) electronic components. It enables compact, precise and reliable signal processing in printed circuit boards for modern electronics. Frequently used in high-frequency, communication and control systems, it improves the performance and miniaturization of electronic devices.
Chip Inductors
Chip inductors are inductors that control high-frequency signals in electronic circuits. They are used in filters, oscillators and RF amplifiers to attenuate, amplify or shape signals. Typical applications can be found in communication technology, medical technology and high-frequency sensors. Their design influences inductance, frequency range and losses.
Do you have any questions about our range of primary side AC-DC converters?
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Design and function of transformers & transformers
Transformers and transformers consist of a magnetic core and two or more windings made of copper wire. The core, usually made of ferrite or laminated iron, is used for efficient magnetic coupling of the windings. As soon as an electrical voltage is applied to the primary winding, a magnetic field is created which induces a voltage in the secondary winding.
In power electronics, power transformers enable efficient voltage adjustment, while signal transformers reliably transmit sensitive data. Special variants such as planar transformers offer particularly compact designs, while AEC-Q200-compliant models meet the stringent requirements of the automotive industry.
Thanks to the high-quality components from Bourns, Rotima AG supplies reliable solutions for a wide range of applications.
In power electronics, power transformers enable efficient voltage adjustment, while signal transformers reliably transmit sensitive data. Special variants such as planar transformers offer particularly compact designs, while AEC-Q200-compliant models meet the stringent requirements of the automotive industry.
Thanks to the high-quality components from Bourns, Rotima AG supplies reliable solutions for a wide range of applications.
What can we do for you?
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What can we do for you?
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What are the advantages of using DC voltage transformers compared to AC voltage transformers?
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What are the advantages of using DC voltage transformers compared to AC voltage transformers?
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Further information on transformers & transformers
In our FAQ section, we answer the most important questions about transformers & transformers. You can find out more about how they work, areas of application and technical properties. Whether you are looking for power transformers, signal transformers or AEC-Q200-compliant components - you will find the right answers here.
What types of transformers & transformers are there?
Transformers & transformers are available in many variants, depending on the area of application. Power transformers are used in power electronics for voltage conversion and insulation. Planar transformers are compact, efficient solutions for high-frequency applications.
AEC-Q200-compliant transformers are used in automotive technology and meet strict quality standards.
HCT transformers are optimized for high-current applications, while signal transformers safely transmit sensitive signals. BMS transformers are essential for battery management systems in electric vehicles. SP-E flyback transformers are used in switching power supplies to convert energy efficiently. Chip LAN transformers ensure interference-free network communication. Each design has specific properties to meet the requirements of a wide range of industries.
AEC-Q200-compliant transformers are used in automotive technology and meet strict quality standards.
HCT transformers are optimized for high-current applications, while signal transformers safely transmit sensitive signals. BMS transformers are essential for battery management systems in electric vehicles. SP-E flyback transformers are used in switching power supplies to convert energy efficiently. Chip LAN transformers ensure interference-free network communication. Each design has specific properties to meet the requirements of a wide range of industries.
Learn more
How do transformers & transformers work in power electronics?
Transformers & transformers use the principle of electromagnetic induction. An alternating current in the primary winding generates a magnetic field in the core, which induces a voltage in the secondary winding. This allows voltages to be adjusted, electrical insulation to be ensured and energy to be transferred efficiently.
Power transformers are often found in switching power supplies, where they convert high voltage into low voltage. Planar transformers offer high power density thanks to their flat design. HCT transformers enable low-loss transmission of high currents. Efficiency and electromagnetic compatibility (EMC) can be optimized by choosing the right materials, such as ferrite cores or special alloys.
Power transformers are often found in switching power supplies, where they convert high voltage into low voltage. Planar transformers offer high power density thanks to their flat design. HCT transformers enable low-loss transmission of high currents. Efficiency and electromagnetic compatibility (EMC) can be optimized by choosing the right materials, such as ferrite cores or special alloys.
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Why are AEC-Q200-compliant transformers important for the automotive industry?
AEC-Q200-compliant transformers & transformers meet strict requirements for temperature, vibration and electrical load capacity. In vehicles, electronic components have to withstand extreme conditions, be it heat in the engine compartment or temperature fluctuations in outdoor use.
BMS transformers ensure precise monitoring of battery cells in electric vehicles. Signal transformers enable reliable communication between control units. Thanks to extensive testing for durability and safety, AEC-Q200-compliant components guarantee trouble-free operation and a long service life in demanding environments.
BMS transformers ensure precise monitoring of battery cells in electric vehicles. Signal transformers enable reliable communication between control units. Thanks to extensive testing for durability and safety, AEC-Q200-compliant components guarantee trouble-free operation and a long service life in demanding environments.
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Where are chip LAN transformers used and what advantages do they offer?
Chip LAN transformers are crucial for network communication. They are used in Ethernet connections, routers, switches and industrial communication modules. Their main purpose is to transmit signals, reduce interference and ensure galvanic isolation between end devices and the network.
Modern chip LAN transformers support high transmission rates of up to 10 Gigabit Ethernet and ensure a stable connection even in demanding environments. Special shielding and optimized windings minimize signal loss, which improves network performance.
Modern chip LAN transformers support high transmission rates of up to 10 Gigabit Ethernet and ensure a stable connection even in demanding environments. Special shielding and optimized windings minimize signal loss, which improves network performance.
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What advantages do planar transformers offer over classic transformers?
Planar transformers have a compact design that enables a higher power density. In contrast to classic wire windings, they use flat copper layers on printed circuit boards, which reduces stray losses and achieves more efficient cooling.
This makes them ideal for switching power supplies, high-frequency applications and space-critical designs. They also offer excellent thermal performance as heat dissipation through the PCB structure is improved. In applications such as power electronics, automotive systems and industrial electronics, planar transformers enable a compact design with high efficiency - a clear advantage over conventional solutions.
This makes them ideal for switching power supplies, high-frequency applications and space-critical designs. They also offer excellent thermal performance as heat dissipation through the PCB structure is improved. In applications such as power electronics, automotive systems and industrial electronics, planar transformers enable a compact design with high efficiency - a clear advantage over conventional solutions.
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