Automotive load dump resistor | Thin Film Resistor Manufacturer | FIRSTOHM

In automotive systems, electronics must pass the ISO7637 EMC transient test(Pulse 5a/5b) to verify that the automotive electronics will not suffer from spikes and malfunction. In response to the surge immunity required by ISO7637 pulse 5a, a TVS function higher than pulse 5b must be selected to pass the test. FIRSTOHM is providing the best solution for passing the pulse 5a test. It is recommended to use an anti-surge resistor to reduce the impact of the surge on the circuit, as follows: FIRSTOHM is a high performance MELF resistors, SMD resistors, metal film resistors, surge resistors, wire wound resistors, precision resistors, High voltage resistors, high Power resistors, metal oxide resistor, thin film resistors, fixed resistors manufacturer from Taiwan since 1969. FIRSTOHM is one of the few companies who is able to design thin-film MELF resistors according to customer's requirements with high quality and reliability. We’re specialized in thin-film resistors since 1969, ISO9001/14001 certificated manufacturer. Over 50 years of industry experience for resistors design and manufacturing facility.

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Cost down solution of ISO7637-2 / ISO16750-2 pulse 5a/5b | Automotive-Grade Resistors Manufacturer | FIRSTOHM

Low cost solution for automotive electronics ISO7637-2 pulse 5a/5b | More than 50 years of resistor manufacture experience

Low cost solution for automotive electronics ISO7637-2 pulse 5a/5b

Automotive load dump resistor

Cost down solution of ISO7637-2 / ISO16750-2 pulse 5a/5b

In automotive systems, electronics must pass the ISO7637 EMC transient test(Pulse 5a/5b) to verify that the automotive electronics will not suffer from spikes and malfunction. In response to the surge immunity required by ISO7637 pulse 5a, a TVS function higher than pulse 5b must be selected to pass the test.

FIRSTOHM is providing the best solution for passing the pulse 5a test. It is recommended to use an anti-surge resistor to reduce the impact of the surge on the circuit, as follows:



Testing result from SGS Lab
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Anti-Surge Wirewound MELF Resistor
Anti-Surge Wirewound MELF Resistor

Anti-Surge Wirewound MELF Resistor can operate in high ambient temperature with less resistance drift.

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Automotive load dump resistor | Surge Resistant MELF Resistor Manufacturer | FIRSTOHM

Located in Taiwan since 1969, First resistor & condenser Co. Ltd. has been a manufacturer of MELF resistors manufacturer. Their main thin film MELF resistors include, automotive grade resistors, surface mount resistors, fusible resistors, SMD resistors, chip resistors, fixed resistors and fusible thin film resistors, which are being widely used in industrial applications such as power supply, smart meter, solar inverter, energy storage device, electric vehicle, communication equipment, and medical device.

FIRSTOHM is one of the few companies who is able to design thin-film MELF resistors according to customer's requirements with high quality and reliability. We’re specialized in thin-film resistors since 1969, ISO9001/14001 certificated manufacturer.

FIRSTOHM has been providing customers with high quality carbon film and metal film resistors since 1969, with both advanced technology and 50 years of experience, FIRSTOHM ensures that each customer's demands are met.