Resistors for high-performance applications
- A Wide Selection of Resistors for the Electronics Industry
- For high-performance applications
- Fast delivery, duty-free—directly from our German warehouse
- Direct line from Switzerland and Germany instead of waiting on hold—we’re here for you
Over 60 years of experience
in the electrical engineering and electronics industry
Short delivery times
through optimized warehousing
Germany and Switzerland
Dual location strength and reliability
Resistors for Industrial Circuits
As a technical supplier, ROTIMA provides electrical resistors and electronic resistors for measurement technology, control systems, power supplies, and power electronics. Our experts select the appropriate resistor types based on resistance value, resistance tolerance, rated power, operating voltage, temperature, and installation conditions .
Select the Right Types of Resistors
Our product range includes SMD resistors, chip resistors, precision resistors, wirewound resistors, film resistors, thin-film resistors, thick-film resistors, power resistors, resistor networks, and custom resistors. The appropriate types of resistors depend on accuracy, load capacity, size, and thermal conditions.
Aligning Design and Technology
Thin-film technology enables tight tolerances and low TCR values. Thick-film technology is suitable for cost-effective standard applications and rugged film resistors. For high power ratings or current spikes, metal resistors, resistive wire components, anti-surge resistors, or thick-filmpower resistors are suitable options.
Rigorously verify technical specifications
For temperature-dependent resistors, in addition to the resistance values, we also test the temperature coefficient (TCR), pulse withstand capability, long-term stability, dielectric strength, and the permissible DC voltage range. For SMD versions, package sizes such as 0402, 0603, 0805, and 1206 affect the current-carrying capacity and heat dissipation.
Current-Measuring Resistors for Precise Measurements
Current-measuring resistors and shunt resistors generate a defined voltage drop to measure electrical currents. For this purpose, low-resistance resistors with low TCR, high stability, and controlled self-heating are typically used.
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Resistors
Our official distribution partner: Shivalik Bimetal Controls Ltd.
Shivalik Bimetal Controls Ltd. specializes in joining materials using processes such as diffusion bonding, cladding, electron beam welding, brazing, and resistance welding. This partnership enables us to offer our customers a wide range of state-of-the-art technologies and products—from current-measuring resistors (shunt resistors) for precise energy measurement to customized solutions for industrial and consumer electronics applications.
Current-measuring resistors generate a defined voltage drop, from which the electric current is determined. Low-resistance resistors are typically used to minimize measurement losses. Key factors include a stable resistance value, a low TCR, low thermal stresses, and suitable contacts.
ROTIMA supplies on-board current-measuring resistors for mounting on printed circuit boards, as well as off-board current-measuring resistors for higher currents and external installation scenarios. Our engineers take into account the measurement current, power dissipation, heat dissipation, connection resistance, and the required measurement accuracy.
Current-measuring resistors generate a defined voltage drop, from which the electric current is determined. Low-resistance resistors are typically used to minimize measurement losses. Key factors include a stable resistance value, a low TCR, low thermal stresses, and suitable contacts.
ROTIMA supplies on-board current-measuring resistors for mounting on printed circuit boards, as well as off-board current-measuring resistors for higher currents and external installation scenarios. Our engineers take into account the measurement current, power dissipation, heat dissipation, connection resistance, and the required measurement accuracy.
Current-measuring resistors without unnecessary measurement errors
ROTIMA collaborates with Shivalik Bimetal Controls Ltd. on on-board current-measuring resistors, off-board current-measuring resistors, and SMD shunts. These solutions are suitable for industrial shunt electronics and shunt electrical engineering in power supplies, power electronics, and measurement systems.
A Kelvin connection and four-wire measurement technique separate the measurement path from the current path. This significantly reduces the effects of lead, contact, and solder resistances.
A Kelvin connection and four-wire measurement technique separate the measurement path from the current path. This significantly reduces the effects of lead, contact, and solder resistances.
Mastering Power and Heat
High-power resistors, high-voltage resistors, and custom power resistors require adequate thermal interface. Depending on the design, cooling surfaces, thermal paste, or phase-change material aid in heat transfer.
Our engineers evaluate continuous power, current peaks, ambient temperature, and connection conditions. Low-inductance resistors may be required for fast switching operations. When properly designed, fusible resistors also perform a defined protective function.
Our engineers evaluate continuous power, current peaks, ambient temperature, and connection conditions. Low-inductance resistors may be required for fast switching operations. When properly designed, fusible resistors also perform a defined protective function.
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Resistors
Hongda Capacitors as a complementary partner
Hongda Capacitors is one of the leading manufacturers of chip capacitors, with decades of experience and state-of-the-art manufacturing technology. The company is certified to ISO 9001:2015 and IATF 16949 and is committed to the highest quality standards in the automotive, electronics, and industrial sectors.
Hongda Capacitors complements the ROTIMA portfolio with capacitors and selected inductors. These components are not offered as resistors, but are often part of the same technical procurement process for filters, power supplies, and electronic assemblies. In this way, we offer our customers components that are characterized by reliability, durability, and innovative technology.
Hongda Capacitors complements the ROTIMA portfolio with capacitors and selected inductors. These components are not offered as resistors, but are often part of the same technical procurement process for filters, power supplies, and electronic assemblies. In this way, we offer our customers components that are characterized by reliability, durability, and innovative technology.
Technical Design of Custom Resistors
ROTIMA develops and supplies technical resistors according to electrical, thermal, and mechanical specifications. Customization options include resistance value, tolerance, power rating, TCR, housing, and termination options. Depending on the technology used, resistor trimming allows for precise adjustment to the target value.
Purchase resistors based on the application
Anyone looking to purchase resistors from ROTIMA can count on our support regarding technology, package types, manufacturers, brands, and relevant testing requirements. Sulfur-resistant chip resistors, chip resistors, precision tolerances, or certifications such as AEC-Q200 are offered only for product series for which the manufacturer’s documentation clearly confirms these characteristics.
What can we do for you?
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What can we do for you?
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Resistors
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What are the advantages of using DC voltage transformers compared to AC voltage transformers?
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