Firstohm Product Brochure

Product(s), photos, specifications or data provided herein may be changed at any time without prior notice. Statements by Firstohm of product feasibility in certain application(s) are based on Firstohm’s knowledge of performance characteristics that are typically required in particular applications. Please confirm technical specifications before placing orders. Copyright@2019 First Resistor & Condenser Co., Ltd. Registered Trademarks ® First Resistor & Condenser Co., Ltd. All rights reserved. The contents of this publication may not be reproduced in whole or in part without prior consent of the copyright owner. Printed in Taiwan.

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Product Reference Table Type C3 C3M CM CSM CSR EFP EFR ESM FGE FM HFT HVM HVR HVR IG ISC ISW M- Series MM MM MM (V) (P) MMP Product Name Charge/Discharge/ ● ● ● ● ● ● ● ● Anti-Surge Current Sense ● ● High Frequency ● High Precision ● High Stability ● ● hm● ● High Voltage ● to● ● ● Ignition / Lighting ● ● rs ● ● ● Power Circuit F●i ● Safety / Protection ● ● ● ● ● Jumper Circuit Types Composite Film-type Ceramic Composition Resistor Composite Film-Type Ceramic Composition MELF Resistor Carbon Film MELF Resistor Current Sense MELF Resistor Current Sense Resistor Enhanced Film Power MELF Resistor Enhanced Film Fixed Resistor ESD Surge Absorber MELF Fusible Resistor Fusible MELF Resistor High Frequency Terminator Resistor High Voltage MELF Resistor High Voltage Resistor High Voltage Resistor (High Power) Ignition Fixed Resistor Ignition Noise Suppression Resistor (Film/Ceramic Composite Type) Ignition Noise Suppression Resistor (Wirewound Type) Metal Film Fixed Resistor Metal Film MELF Resistor Metal Film MELF Resistor(Vehicle Grade) Metal Film MELF Resistor (Pulse Withstanding) Metal Film MELF Precision Resistor

Product Reference Table MMP (V) MO MP MSD MVM MVR PMA PPR PSR PWR SCP SFP SFP (V) SGS SLC SM SRM SSR SWA SWAT SWM SWMT WA ZMM ZOM ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● F h● m ● ● irsto● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Metal Film MELF Precision Resistor (Vehicle Grade) Metal Oxide Film Fixed Resistor Metal Film Precision Resistor Pulse Safety Resistor Medium Voltage MELF Resistor Medium Voltage Resistor Professional Metal Film Axial Resistor Pulse Protective Resistor Power Sink Resistor Power Metal Film Resistor Short Circuit Protection Resistor Stabilized Film Power MELF Resistor Stabilized Film Power MELF Resistor(Vehicle Grade) Spark-Gap Surge Absorber Slug Resistor Center Coated Stabilized Metal Film MELF Resistor Surge Resistant MELF Resistor Surge Safety Resistor Anti-Surge Wirewound Resistor Anti-Surge Wirewound Fast-Fuse Resistor Anti-Surge Wirewound MELF Resistor Anti-Surge Wirewound Fast-Fuse MELF Resistor Wirewound Resistors Zero Ohm Metal Film MELF Resistor Zero Ohm Metal Film Resistor

Product Reference Table Type C3 C3M CM CSM CSR EFP EFR ESM FGE FM HFT HVM HVR HVR IG ISC ISW M- MM MM Series MM (V) (P) MMP Product Name Power Supply ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Telecomm ● ● ● ● ● ● ● ● ● ● ● ● Meter ● ● ● ● ● ● ● ● ● ● ● ●hm● ● ● Medical ● ● ● ● ● ● ● ●st●o● ● ● ● ● ● Automotive ● ●F● ●ir ● ● ● ● ● ● ● ● ● Lighting ● ● ● ● ● ● ● ● ● ● ● ● ● Surface Mount ● ● ● ● ● ● ● ● ● ● ● ● ● ● Enabled Industries Composite Film-type Ceramic Composition Resistor Composite Film-Type Ceramic Composition MELF Resistor Carbon Film MELF Resistor Current Sense MELF Resistor Current Sense Resistor Enhanced Film Power MELF Resistor Enhanced Film Fixed Resistor ESD Surge Absorber MELF Fusible Resistor Fusible MELF Resistor High Frequency Terminator Resistor High Voltage MELF Resistor High Voltage Resistor High Voltage Resistor (High Power) Ignition Fixed Resistor Ignition Noise Suppression Resistor (Film/Ceramic Composite Type) Ignition Noise Suppression Resistor (Wirewound Type) Metal Film Fixed Resistor Metal Film MELF Resistor Metal Film MELF Resistor(Vehicle Grade) Metal Film MELF Resistor (Pulse Withstanding) Metal Film MELF Precision Resistor

Product Reference Table MMP (V) MO MP MSD MVM MVR PMA PPR PSR PWR SCP SFP SFP (V) SGS SLC SM SRM SSR SWA SWAT SWM SWMT WA ZMM ZOM ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●m● ● ● ● ● ● ● ● ● ● ●F h ● ● i● r●s● to● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Metal Film MELF Precision Resistor (Vehicle Grade) Metal Oxide Film Fixed Resistor Metal Film Precision Resistor Pulse Safety Resistor Medium Voltage MELF Resistor Medium Voltage Resistor Professional Metal Film Axial Resistor Pulse Protective Resistor Power Sink Resistor Power Metal Film Resistor Short Circuit Protection Resistor Stabilized Film Power MELF Resistor Stabilized Film Power MELF Resistor(Vehicle Grade) Spark-Gap Surge Absorber Slug Resistor Center Coated Stabilized Metal Film MELF Resistor Surge Resistant MELF Resistor Surge Safety Resistor Anti-Surge Wirewound Resistor Anti-Surge Wirewound Fast-Fuse Resistor Anti-Surge Wirewound MELF Resistor Anti-Surge Wirewound Fast-Fuse MELF Resistor Wirewound Resistors Zero Ohm Metal Film MELF Resistor Zero Ohm Metal Film Resistor

ity Product Summary abil ality • Reli ation Qu own via Innov ost-DC Resistor Key Features Power Rating Ohm Range Tolerance C3 Composite Film-Type Ceramic Composition Resistor • Innovative and cost-effective C3 technology (NOTE 1) • Conforms to ANSI/AAMI norm EC53:1995/(R)2008 5.5.3 1W 33R ~ 22K ±5%, ±10%, • Suitable replacement for ceramic composition resistors, which are ±20% required in most applications. • Maximum permissible surge voltage: 15KV • Typical 10μs maximum pulse load: 200000W C3M100 Composite Film - Type Ceramic Composition MELF Resistor • SMD-enabled structure • Suitable replacement for ceramic composition resistors, which are 1W 33R ~ 22K ±5% ~ 20% requiements in most applications. • Maximum permissible surge voltage: 15KV • Typical 10μs maximum pulse load: 40000W CM Carbon Film MELF Resistor 1/4W ~ 1/2W 0, 0.51R ~ 10M ± 5% SMD enabled structure Excellent solderability termination * All products are RoHS/REACH compliant unless otherwise specified. * NOTE 1: patent pending 1969 Established in Taipei, Taiwan 1 www.firstohm.com.tw October 31, 2018 general@firstohm.com.tw

ity Product Summary liabil ity • Re Innovation l Qua via ost-Down C Resistor Key Features Power Rating Ohm Range Tolerance CSM Current Sense MELF Resistor • High power handling with superior reliability and stability • Conformal multi-layer coating against humidity 1/4W ~ 3W 10mR ~ 510mR ± 1% ~ 5% • SMD enabled structure with excellent solderability TM • HeatSinker technology for better heat dissipation • Typical temperature coefficient: 50ppm ~ 600ppm CSR Current Sense Resistor • Offers better reliability than regular low-ohm resistors using our proprietary HeatSinkerTM technology 1/4W ~ 5W 68mR ~ 510mR ± 1% ~ 5% • Lead-free tin plated deoxygenized copper wire provides stable value of resistor during operation. • Flame-proof coating available • Typical temperature coefficient: 100ppm ~ 300ppm EFP Enhanced Film Power MELF Resistor • High power handling 1/2W ~ 5W 0, 0.51R ~ 10M ± 0.5% ~ 5% • Superior reliability and stability • SMD enabled structure with excellent solderability • Typical temperature coefficient: 200ppm ~ 800ppm * All products are RoHS/REACH compliant unless otherwise specified. 1986 Acquired precision resistor technology from Japan www.firstohm.com.tw October 31, 2018 2 general@firstohm.com.tw

ity Product Summary bil lity • Relia a via Innovation Qu wn Cost-Do Resistor Key Features Power Rating Ohm Range Tolerance EFR Enhanced Film Fixed Resistor • Flameproof multi-layer coating equivalent to UL 94 V-0 1/2W ~ 5W 1R ~ 1M ± 1%, ± 2%, ± 5% • Flameproof feature equivalent to overload test UL 1412 • High power handling in small size • Typical temperature coefficient: 50ppm ~ 500ppm ESM 80A @2/10μs ESD Surge Absorber MELF 60A @8/20μs 1300V • Protects the circuit by sparking over the porous layer when surge Surge DC Spark-Over ± 30% exceeds the spark-over voltage Current • Patented construction with reduced costs Capacity Voltage • High insulation resistance, low capacitance, and fast response time FGE Fusible Resistor • Flameproof multi-layer coating equivalent to UL 94 V-0 • Flameproof feature equivalent to overload test UL 1412 1/4W ~ 3W 2R2 ~ 15K ± 5% • Color code per MIL & EIA standards • Special tin-plated electrolytic copper lead wire • Typical fusing condition - (a) Standard Type: Fuses within 10 sec. at 5W ~ 6.25W (b) Power Types: Fuses within 60 sec. at 8W ~ 24W * All products are RoHS/REACH compliant unless otherwise specified. 1989 Acquired chip resistor technology from Japan 3 www.firstohm.com.tw October 31, 2018 general@firstohm.com.tw

ity Product Summary liabil lity • Re ia Innovation Qua t-Down v Cos Resistor Key Features Power Rating Ohm Range Tolerance FM Fusible MELF Resistor • SMD enabled structure 1/3W ~ 1/2W 2R2 ~ 10K ± 5% • Excellent solderability termination • Fuses within 10 sec. at 9.8W ~ 10.5W HFT High Frequency Terminator Resistor • SMD enabled structure 1/4W ~ 2W 24R9 ~ 75R ± 0.1% ~ 1% • Superior frequency response • Excellent solderability termination HVM High Voltage MELF Resistor • Handles much higher working voltage than general purpose resistors • Pure tin-plated termination for excellent solderability 1/6W ~ 3W 56K ~ 68M ± 1% ~ 5% • SMD enabled structure • Anti-surge feature available • Maximum working voltage: 600V DC ~ 8400V DC * All products are RoHS/REACH compliant unless otherwise specified. 1991 Developed Surge/Pulse Resistant Resistors www.firstohm.com.tw October 31, 2018 4 general@firstohm.com.tw

ity Product Summary il lity • Reliab ovation Qua wn via Inn Cost-Do Resistor Key Features Power Rating Ohm Range Tolerance HVR High Voltage Resistor • Special conductive film withstands high voltage • Maximum working voltage far over that of general-purpose resistors • Suitable for applications such as TV’s, high voltage power supply, and high voltage detection. 1/4W ~ 3W 91K ~ 100M ± 1% ± 5% • Entire series is VDE0860 (EN60065) approved under license number 40011593 • Maximum working voltage: 1.6KV DC ~ 12KV DC • Typical temperature coefficient: 200ppm ~ 800ppm HVR High Voltage Resistor (High Power) • Special conductive film withstands voltage far over the maximum working voltage of general-purpose resistors. 10W ~ 15W 100K ~ 100M ± 1%, ± 5% • Suitable for applications such as TV’s, high voltage power supply, and high voltage detection. • Maximum working voltage: 35KV DC • Typical temperature coefficient: 800ppm IG Ignition Fixed Resistor • Special coating technique to ensure fast ignition • Color code per MIL & EIA standards 1/6W 1R ~ 150R ± 5% • Special conductive film to fuse at high temperature • Auto cut-off after fusing/no sustainging fire hazard • Special tin-plated electrolytic copper lead wire for optimal ease of soldering and mounting * All products are RoHS/REACH compliant unless otherwise specified. 1991 Developed MELF Resistor 5 www.firstohm.com.tw October 31, 2018 general@firstohm.com.tw

ity Product Summary eliabil on uality • R novati Q Down via In - Cost Resistor Key Features Power Rating Ohm Range Tolerance ISC Ignition Noise Suppression Resistor (Ceramic Film Composite Type) • Dedicatedly designed for high-voltage spark ignition systems • Proprietary ceramic composite withstands high-voltage surge impacts 1/2W ~ 3W 1K ~ 10K ±5% ~ 20% with long-term stability. • One of few sources in the world capable of manufacturing such type of resistor ISW Ignition Noise Suppression Resistor (Wirewound Type) 2W ~ 3W 1K ~ 5K ±5% ~ 20% • Dedicatedly designed for high-voltage spark ignition systems • Enhanced weld spot is reliable against surge with long-term stability M-Series Metal Film Fixed Resistor • Conformal multi-layer coating 1/6W ~ 3W 0R1 ~ 10M ± 0.1% ~ 5% • Color code per MIL & EIA standards • Special tin-plated electrolytic copper lead wire * A l l products are RoHS/REACH compliant unless otherwise specified. 1998 Developed High-Voltage Resistors www.firstohm.com.tw October 31, 2018 6 general@firstohm.com.tw

y Product Summary ty • Reliabilit ali via Innovation Qu own Cost-D Resistor Key Features Power Rating Ohm Range Tolerance MM Metal Film MELF Resistor • SMD enabled structure 1/6W ~ 1/2W 0, 0R51 ~ 10M ± 1%, ± 2%, • Excellent solderability termination ± 5% • Typical 10μs maximum pulse load: 32W ~ 70W • Typical temperature coefficient: 25ppm ~ 100ppm MM(V) Metal Film MELF Resistor, Vehicle Grade • AEC-Q200 compliant 1/4W ~ 1/2W 0R47 ~ 10M ± 1%, ± 2%, • Excellent solderability termination ± 5% • Typical 10μs maximum pulse load: 35W ~ 80W • Typical temperature coefficient: 25ppm ~ 100ppm MM102 Metal Film MELF Resistor • SMD-enabled structure 0.2W 0, 0.22R ~ 2.2M ±0.5% ~ 5% • Excellent solderability termination • Typical temperature coefficient: 25ppm ~ 100ppm * All products are RoHS/REACH compliant unless otherwise specified. 1999 Established management system according to ISO14000 standards 7 www.firstohm.com.tw October 31, 2018 general@firstohm.com.tw

ity Product Summary Reliabil lity • ua n via Innovation Q ow Cost-D Resistor Key Features Power Rating Ohm Range Tolerance MM(P) Metal Film MELF Resistor (Pulse Withstanding) • SMD enabled structure 1/6W ~ 1/2W 0R1 ~ 330K ± 1%, ± 2%, • Excellent solderability termination ± 5% • Enhanced pulse withstanding capability • Typical temperature coefficient: 50ppm, 100ppm • Typical 1.2/50µs maximum pulse voltage: 4000V MMP Metal Film MELF Precision Resistor ± 0.1%, • SMD enabled structure 1/6W ~ 1W 10R ~ 1M ± 0.25%, • Excellent solderability termination ± 0.5% • Typical 10µs maximum pulse load: 32W ~ 70W • Typical temperature coefficient: 5ppm ~ 50ppm MMP(V) Metal Film MELF Precision Resistor, Vehicle Grade • AEC-Q200 Compliant 1/4W ~ 1/2W 10R ~ 1M ±0.1% ~ 0.5% • Excellent solderability termination • Typical 10μs maximum pulse load: 35W ~ 80W • Typical temperature coefficient: 15ppm ~ 50ppm * All products are RoHS/REACH compliant unless otherwise specified. 2001 ISO 9001 certified www.firstohm.com.tw October 31, 2018 8 general@firstohm.com.tw

liabilityProduct Summary • Re uality n via Innovation Q Cost-Dow Resistor Key Features Power Rating Ohm Range Tolerance MO Metal Oxide Film Fixed Resistor • Flameproof multi-layer coating equivalent to UL 94 V-0 1/2W ~ 6W 0R1 ~ 330K ± 5% • Flameproof feature equivalent to overload test UL 1412 • Solvent resistant • Special tin-plated electrolytic copper lead wire MP Metal Film Precision Resistor • Conformal multi-layer coating 1/6W ~ 1/2W 10R ~ 1M ± 0.05% ~ 0.5% • Color code per MIL & EIA standards • Special tin-plated electrolytic copper lead wire • Typical temperature coefficient: 10ppm ~ 50ppm MSD Pulse Safety Resistor • Special composite film on high grade ceramic substrate • Flameproof multi-layer coating equivalent to UL 94 V-0 • Flameproof feature equivalent to overload test UL 1412 1/4W ~ 6W 0R1 ~ 1M ± 0.1% ~ 5% • Excellent anti-surge capability. Typical 10µs pulse load: 110W ~ 6200W • Absorbs pulse from city power line, direct crossing or inductive coupling and protects electric equipment or parts from accidental shock • Low-cost alternative to wire-wound resistors * All products are RoHS/REACH compliant unless otherwise specified. 2004 High-Voltage Resistor (HVR series) passed VDE0860 (EN60065) 9 www.firstohm.com.tw October 31, 2018 general@firstohm.com.tw

ity Product Summary liabil ality • Re via Innovation Qu ost-Down C Resistor Key Features Power Rating Ohm Range Tolerance MVM Medium Voltage MELF Resistor • SMD enabled structure Anti-surge feature available 0.4W ~ 1W 332K ~ 40M ±5% • • Pure tin-plated termination for excellent solderability • Handles much higher working voltage than general purpose resistors • Maximum working voltage: 750V DC - 1,000V DC MVR Medium Voltage Resistor • Higher working voltage with improved reliability • Proprietary conductive film 1/4W ~ 2W 47K ~ 100M ± 0.1% ~ ± 5% • Especially suitable for SMPS & lighting devices • Low-cost alternative to metal-glazed resistors • Maximum working voltage: 550V DC ~ 7KV DC • Typical temperature coefficient: 100ppm ~ 800ppm PMA Professional Metal Film Axial Resistor • Conformal multi-layer coating 2/5W ~ 1.2W 1R ~ 4M7 ± 0.1% ~ 5% • Excellent stability and better power handling • Typical temperature coefficient: 5ppm ~ 100pm * All products are RoHS/REACH compliant unless otherwise specified. 2008 Developed Current Sense MELF Resistor www.firstohm.com.tw October 31, 2018 10 general@firstohm.com.tw

ity Product Summary liabil lity • Re ia Innovation Qua n v ost-Dow C Resistor Key Features Power Rating Ohm Range Tolerance PPR Pulse Protective Resistor • Application: high-frequency, sharp-impulse circuits. • Protects active components in missile detonators, triac switching circuits, etc. • Offers better performance than carbon composition resistor. 1/4W ~ 2W 2R2 ~ 4M7 ± 5% • No "sintering effect" caused by high surge that greatly decreases resistance value. • Conformal multi-layer non-flammable coating • Maximum permissible surge voltage: 7KV ~ 20KV • Typical 10µs maximum pulse load: 110W ~ 1600W PSR Power Sink Resistor • Designed to replace cement resistors • Auto insertion feasible • Enhanced conductive film absorbs pulse noise 6W 1R ~ 4M7 ± 5% • Superior-grade ceramic core dissipates heat efficiently • Flameproof multi-layer coating equivalent to UL 94 V-0 • Flameproof feature equivalent to overload test UL 1412 • Maximum permissible surge voltage: 20KV • Typical 10µs maximum pulse load: 10000W PWR Power Metal Film Resistor • Conformal multi-layer coating 3/5W ~ 2W 0R22 ~ 1M ±1% ~ ± 5% • Color code per MIL & EIA standards • Special tin-plated electrolytic copper lead wire • Typical temperature coefficient: 250ppm * All products are RoHS/REACH compliant unless otherwise specified. First non-resistor product officially launched - Spark-Gap Surge Absorber (SGS) 2010 11 www.firstohm.com.tw October 31, 2018 general@firstohm.com.tw

y Product Summary ty • Reliabilit vation Quali Inno wn via Cost-Do Resistor Key Features Power Rating Ohm Range Tolerance SCP Short Circuit Protection Resistor • Advanced multi-functional design • Cut-off on overload or accidental short circuit • Transient withstanding for power-line coupling 1/2W ~ 3W 2R2 ~ 10K ± 5% Flameproof multi-layer coating equivalent to UL 94 V-0 Flameproof feature equivalent to overload test UL 1412 • Possible alternative to wire-wound resistors • Maximum overload voltage: 600V ~ 700V • Fuses within 60 sec. at 12W ~ 30W SFP Stabilized Film Power MELF Resistor • Low temperature coefficient and tolerances • Excellent stability 1/2W ~ 3W 0R5 ~ 10M ± 0.5% ~ 5% • Superior power handling • Typical temperature coefficient: 50ppm ~ 200ppm SFP(V) Stabilized Film Power MELF Resistor, Vehicle Grade • AEC-Q200 Complicant 1/2W ~ 3W 0R22 ~ 1M ±1% ~ 5 % • Low temperature coefficient and terance • Superior power handing • Typical temperature coefficient: 25ppm - 50ppm * All products are RoHS/REACH compliant unless otherwise specified. 2011 SGS patent granted by European Patent Office www.firstohm.com.tw October 31, 2018 12 general@firstohm.com.tw

ity Product Summary Reliabil ity • ation l Qua own via Innov -D Cost Resistor Key Features Power Rating Ohm Range Tolerance SGS 80A @2/10us Spark-Gap Surge Absorber 60A @8/20us 1550V ~ 3300V • Low-cost patented construction (EP 09000962.2) Surge DC ± 30% • No light-dark effect Spark-Over Current • Low capacitance / short response time / fast ignition Capacity Voltage • Response time: ≤1ns SL Slug Resistor Specially treated metal caps withstand abrasions, impacts, and corrosions, so as to reduce contact resistance during operation. conductive film is enhanced to withstand abrasions, 1/6W ~ 1/2W 1R ~ 9M1 ± 5% ~ 10% impacts, and corrosions as well. Suitable for clip-in (embedded) application like switches with neon indicators, neon/LED modules, LED display array, etc. Protective coating is optional SLC Slug Resistor Center Coated Specially treated metal caps withstand abrasions, impacts, and corrosions, so as to reduce contact resistance during operation. 1/6W ~ 1/2W 1R ~ 9M1 ± 5% ~ 10% conductive film is enhanced to withstand abrasions, impacts, and corrosions as well. Suitable for clip-in (embedded) application like switches with neon indicators, neon/LED modules, LED display array, etc. * All products are RoHS/REACH compliant unless otherwise specified. ** estimated SGS patent granted in Japan, China, and Korea 2012 13 www.firstohm.com.tw October 31, 2018 general@firstohm.com.tw