Firstohm Company Profile

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eliability ty • R Innovation uali n via w Company Profile Q Cost-Do Established in 1969, First Resistor & Condenser Co., Ltd. (Firstohm) is specialized in thin-film resistors. Backed by strong in-house research and development capability and manufacturing technology acquired from major partners in Japan and the US, Firstohm has pioneered the development in various types of resistors in response to the changing environment of global industries. Philosophy and Mission Given the fast-developing technology landscape, the ability of component manufacturers to evolve and provide quality parts in time has become increasingly crucial to introduction of new electronic products. Our goal at Firstohm is to constantly pursue innovation and to provide customers with quality products and reliable services in a cost efficient and timely manner. Why to stay with us  Extensive range of specialty resistors – These products include MELF resistors, surge resistors, high voltage resistors, precision resistors, and current sense resistors.  Customer-oriented – Firstohm is able to customize products and services according to customer’s special requirement.  In-house research and development capability – This enables Firstohm’s swift responses to the market trend. (Quality, Reliability, Cost-Down via Innovation).  Solution provider – To ensure optimal outcome, Firstohm closely collaborates with the customers from the initial technical consulting to the final resistor product selection. Featured Products vs. Industries Application Product Power Supply Telecomm Meter Medical Automotive LED Category Lighting MELF ★ ★ ★ ★ ★ ★ Anti-Surge ★ ★ ★ ★ ★ ★ High Voltage ★ ★ ★ ★ Precision ★ ★ ★ Current Sense ★ ★ ★ ★ ★ ★ Fusible ★ ★ ★ ★ Acquired chip resistor Established management technology from Japan system according to Established in 1991 1998 ISO14000 standards Taipei, Taiwan 1986 1989 Developed Surge & 1999 1969 MELF Resistors Acquired precision resistor technology Developed High-Voltage from Japan Resistors 1 www.firstohm.com.tw general@firstohm.com.tw

ility ility lity • Reliab ion ab a via Innovat ality • Reli ovation Qu own Qu own via Inn ost-DC Product Classification by Application Cost-D Surge / Safety / Protection Circuit Precision/High Stability Circuit  Anti-Surge Wirewound Resistor—SWA  Enhanced Film Fixed Resisto—EFR  Composite Film-Type Ceramic Composition Resistor—C3  Enhanced Film Power MELF Resistor—EFP  Fusible Resistor—FGE  Metal Film MELF Precision Resistor—MMP  Fusible MELF Resistor—FM  Metal Film Precision Resistor—MP  Pulse Safety Resistor-MSD  Stabilized Film Power MELF High Powe—SFP  Pulse Protective Resistor—PPR  Stabilized Metal Film MELF Resistor—SM  Short Circuit Protection Resistor—SCP  Professional Metal Film Axial Resistor—PMA  Surge Resistant MELF Resistor—SRM (VDE0860 Certified)  Surge Safety Resistor—SSR  Anti-Surge Wirewound Fast-Fuse MELF Resistor—SWMT Power Circuit ( >3W)  Enhanced Film Power MELF Resistor—EFP  High Voltage Resistor—HVR (VDE0860 Certified) AEC-Q200 (Vehicle Grade)  Metal Oxide Film Fixed Resistor—MO  Metal Film MELF Resistor—MM(V)  Wirewound Resistors—WA  Metal Film MELF Precision Resistor—MMP(V)  Anti-Surge Wirewound MELF Resistor—SWM  Stabilized Film Power MELF Resistor—SFP(V)  Anti-Surge Wirewound Fast-Fuse MELF Resistor—  Surge Resistant MELF Resistor—SRM (VDE0860 Certified) SWMT Current Sense Circuit High Voltage Circuit  Current Sense Resistor—CSR  Enhanced Film Fixed Resistor—EFR  Current Sense MELF Resistor—CSM  High Voltage MELF Resistor—HVM  High Voltage Resistor—HVR (VDE0860 Certified)  Medium Voltage Resistor—MVR Ignition / Lighting Circuit  Medium Voltage MELF Resistor—MVM  Spark-Gap Surge Absorber—SGS  Ignition Fixed Resistor—IG  Ignition Noise Suppression Resistor (Wirewound Type) —ISW  Ignition Noise Suppression Resistor—ISC High Frequency Circuit (Film/Ceramic Composite Type)  High Frequency Terminator Resistor—HFT  Medium Voltage Resistor—MVR  Surge Resistant MELF Resistor—SRM (VDE0860  Slug Resistor Center Coated—SLC Certified)  Surge Safety Resistor—SSR Developed Anti-Surge Wirewound Fast-Fuse Developed Current Resistor Sense MELF Resistor ISO 9001 certified Developed Anti-Surge Wirewound Resistor 2015 2018 2001 2008 2014 Developed 0102 Metal Film MELF Resistor www.firstohm.com.tw general@firstohm.com.tw 2

Reliability ality • via Innovation u wn Specialist MELF Resistors Q ost-Do C Over 30 years' experience in Advantages MELF resistors with high quality. of MELF Resistor: • Stronger mechanical structure, resistant to seismic vibration and thermal shock. • Excellent in heat dissipation. (Especially suitable for air cooling). • Superior surge protection than chip resistors (Surge Proof). • Highly stable, suitable for long period usage. (Excellent Stability). • Low temperature drift, high precision. Superior surge protection than chip resistors Firstohm SRM204T and anti-surge 1206 CHIP resistor of Company V1 connected in series AC 12.25W applied individually: Firstohm SRM204T V1 company Anti-Surge 1206 CHIP resistor (100Ω, 5%) (100Ω, 5%) Average change in resistance value: < 0.1% Open in approximately 0.1s ~ 0.2s Comparison of the internal heat resistance (Rthi): Advantage Firstohm: (Better heat dissipation) ; ΔT = Tb – Ta : 17°C~20°C • FIRSTOHM SFP101V (MELF RESISTOR) • Competitor V1 (Chip resistor) 3 www.firstohm.com.tw general@firstohm.com.tw

eliability n liability y • R n ualit n via Innovatio lity • Re ua n via Innovatio Q t-Dow w Cos What’s New Q -Do Cost What's New Anti-Surge Wire wound Fast-Fuse Resistor (SWAT/SWMT) • Patented enhancement to the wire welded spot • Multi-Purpose Resistors (include Fast Fusing & Anti-Surge functions) to reduce total BOM cost • Applications now include lighting circuits, motor energizing, ignition system, rush current protection for power capacitors, mobile phone charger, etc. International Certifications No. FM 577844 No. EMS 594693 Certificate No: FM 577844 Certificate No: EMS 594693 Certificate No: 40011593 & 40043961 Firstohm commits to processes Minimizing environmental impact High Voltage Resistor HVR series & Surge that engage Various teams in while growing the business is of Resistant MELF Resistor SRM series tested providing better customer service utmost importance to us. and certified according to DIN EN 60065 effectively and efficiently. (VDE 0860): 2011-10 clause 14.1 a) www.firstohm.com.tw general@firstohm.com.tw 4

ility lity • Reliab a ia Innovation u wn v Resistors-SMD Q st-Do Co Series Description Power Range Tolerance TCR/PPM Feature C3M100 • SMD-enabled structure Composite Film - Type • Suitable replacement for ceramic composition resistors, Ceramic Composition MELF 1W 33R~22K ±5%~20% -3000 which are requiements in most applications. Resistor • Maximum permissible surge voltage: 15KV • Typical 10μs maximum pulse load: 40000W CM ±300 -500 Carbon Film MELF Resistor 1/4W~1/2W 0, 0.51R~10M ± 5% -700 • SMD enabled structure -1000 • Excellent solderability termination -1500 CSM ±50 • High power handling with superior reliability and stability Current Sense MELF ±100 • Conformal multi-layer coating against humidity 1/4W~3W 10mR~510mR ± 1%~5% ±200 • SMD enabled structure with excellent solderability Resistor ±300 • HeatSinkerTM technology for better heat dissipation ±600 • Typical temperature coefficient: 50ppm ~ 600ppm EFP ±200 • High power handling Enhanced Film Power 1/2W~5W 0, 0.51R~10M ± 0.5% ~ 5% ±400 • Superior reliability and stability MELF Resistor ±600 • SMD enabled structure with excellent solderability ±800 • Typical temperature coefficient: 200ppm ~ 800ppm ESM 80A @2/10μs 1300V • Protects the circuit by sparking over the porous layer when 60A @8/20μs DC surge exceeds the spark-over voltage ESD Surge Absorber MELF Surge Spark-Over ± 30% -- • Patented construction with reduced costs Current • High insulation resistance, low capacitance, and fast Capacity Voltage response time FM • SMD enabled structure Fusible MELF Resistor 1/3W~1/2W 2R2~10K ± 5% ±200 • Excellent solderability termination • Fuses within 10 sec. at 9.8W ~ 10.5W HFT High Frequency Terminator ±50 • SMD enabled structure 1/4W~2W 24R9~75R ± 0.1%~1% ±100 • Superior frequency response Resistor • Excellent solderability termination HVM • Handles much higher working voltage than general purpose ±200 resistors High Voltage MELF Resistor 1/6W~3W 56K~68M ± 1%~5% ±400 • Pure tin-plated termination for excellent solderability ±800 • SMD enabled structure ±1200 • Anti-surge feature available • Maximum working voltage: 600V DC ~ 8400V DC ISC • Dedicatedly designed for high-voltage spark ignition systems Ignition Noise Suppression • Proprietary ceramic composite withstands high-voltage Resistor (Ceramic Film 1/2W~3W 1K~10K ±5%~20% ±3300 surge impacts with long-term stability. Composite Type) • One of few sources in the world capable of manufacturing such type of resistor ISW Ignition Noise Suppression • Dedicatedly designed for high-voltage spark ignition systems 2W~3W 1K~5K ±5%~20% ±300 • Enhanced weld spot is reliable against surge with long-term Resistor (Wirewound Type) stability MM • SMD enabled structure ± 1%, ± 2%, ±25 Metal Film MELF Resistor 1/6W~1/2W 0, 0R51~10M ±50 • Excellent solderability termination ± 5% ±100 • Typical 10μs maximum pulse load: 32W ~ 70W • Typical temperature coefficient: 25ppm ~ 100ppm MM(V) • AEC-Q200 compliant Metal Film MELF Resistor, ± 1%, ± 2%, ±25 1/4W~1/2W 0R47~10M ±50 • Excellent solderability termination Vehicle Grade ± 5% ±100 • Typical 10μs maximum pulse load: 35W ~ 80W • Typical temperature coefficient: 25ppm ~ 100ppm MM102 ±25 • SMD-enabled structure Metal Film MELF Resistor 0.2W 0, 0.22R~2.2M ±0.5%~5% ±50 • Excellent solderability termination ±100 • Typical temperature coefficient: 25ppm ~ 100ppm MM(P) • SMD enabled structure Metal Film MELF Resistor ± 1%, ± 2%, 1/6W~1/2W 0R1~330K ±50 • Excellent solderability termination ±100 • Enhanced pulse withstanding capability (Pulse Withstanding) ± 5% • Typical temperature coefficient: 50ppm, 100ppm • Typical 1.2/50μs maximum pulse voltage: 4000V 5 www.firstohm.com.tw general@firstohm.com.tw

Reliability ty ity • Innovation • Reliabili l a lity a Innovation Qua own vi a vi -D u wn Cost Resistors-SMD Q o Cost-D Series Description Power Range Tolerance TCR/PPM Feature MMP ±5 ± 0.1%, • SMD enabled structure Metal Film MELF Precision ±10 1/6W~1W 10R~1M ± 0.25%, ±15 • Excellent solderability termination Resistor • Typical 10μs maximum pulse load: 32W ~ 70W ± 0.5% ±25 ±50 • Typical temperature coefficient: 5ppm ~ 50ppm MMP(V) • AEC-Q200 Compliant Metal Film MELF Precision ±15 1/4W~1/2W 10R~1M ±0.1%~0.5% ±25 • Excellent solderability termination Resistor, Vehicle Grade ±50 • Typical 10μs maximum pulse load: 35W ~ 80W • Typical temperature coefficient: 15ppm ~ 50ppm MVM • SMD enabled structure ±200 • Anti-surge feature available Medium Voltage MELF 0.4W~1W 332K~40M ±5% ±400 • Pure tin-plated termination for excellent solderability Resistor ±800 • Handles much higher working voltage than general purpose ±1200 resistors • Maximum working voltage: 750V DC - 1,000V DC SFP ±50 • Low temperature coefficient and tolerances Stabilized Film Power 1/2W~3W 0R5~10M ± 0.5%~5% ±100 • Excellent stability MELF Resistor ±200 • Superior power handling • Typical temperature coefficient: 50ppm ~ 200ppm SFP(V) • AEC-Q200 Complicant Stabilized Film Power MELF 1/2W~3W 0R22~1M ±1%~5% ±25 • Low temperature coefficient and terance Resistor, Vehicle Grade ±50 • Superior power handing • Typical temperature coefficient: 25ppm - 50ppm SL • Specially treated metal caps withstand abrasions, impacts, and corrosions, so as to reduce contact resistance during operation. conductive film is enhanced to withstand Slug Resistor 1/6W~1/2W 1R~9M1 ± 5%~10% ±200 ~ -800 abrasions, 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 • Specially treated metal caps withstand abrasions, impacts, and corrosions, so as to reduce contact resistance during Slug Resistor Center 1/6W~1/2W 1R~9M1 ± 5%~10% ±200 ~ -800 operation. conductive film is enhanced to withstand Coated abrasions, impacts, and corrosions as well. Suitable for clip-in (embedded) application like switches with neon indicators, neon/LED modules, LED display array, etc. SM • Conformal coating against humidity Stabilized Metal Film MELF ±25 1/6W~1/2W 0R51~10M ± 1%~5% ±50 • Excellent solderability termination Resistor ±100 • Typical 10μs maximum pulse load: 32W ~ 70W • Typical temperature coefficient: 25ppm ~ 100ppm SRM • IEC60065 & UL1676 Compliant • Miniaturized MELF design handles high power • Special conductive film enhances anti-surge capability Surge Resistant MELF ±100 • Absorbs harmful surge which damages precious devices or Resistor 1/4W~3W 0R1~2M2 ± 1%~5% ±200 components ±400 • SMD-enabled alternative to carbon composition resistors • Maximum permissible surge voltage: 2KV ~ 10KV • Typical 10μs maximum pulse load: 70W ~ 8000W • Approved to the safety requirement of VDE0860 under license number 40043961 SWM • SMD enabled structure • Flameproof multi-layer coating equivalent to UL 94 V-0 • Flameproof feature equivalent to overload test UL 1412 • SWM series can be adopted for high surge applications Anti-Surge Wirewound 1W~4W 0R1~1K2 ± 5% ±100 such as high rush current protection for power capacitor, MELF Resistor ±300 motor start-up protection, car & motorcycle engine ignition, etc. to absorb harmful surge energy and prevent hazard of circuit damage caused by surge impact. • Enhanced weld spot is reliable against surge impact • Maximum permissible surge voltage: 11KV SWMT • Fast-acting fuse device for high-power applications Anti-Surge Wire Wound • Advanced combined anti- surge & fast-fuse structure 1W~4W 1R~1KR ±5% ±200 • Thermal fuse to protect against over-heating in electronic Fast-Fuse MELF Resistors products • Flameproof multi-layer coating equivalent to UL 94 V-0 ZMM 2A ~ 4A • SMD enable structure Zero Ohm Metal Film Maximum < 20mR N/A -- • Excellent solderability termination MELF Resistor Current • Stable metal film construction www.firstohm.com.tw general@firstohm.com.tw 6

liabilitye lity • R ia Innovation Qua own v Global Reach Cost-D Poland Global Reach Belarus Germany (The biggest market: Germany) UK China France EUROPE France Hong Kong Germany JAPAN NORTH AMERICA Spain ASIA China India Italy AFRICA Korea Spain Thailand Switzerland Taiwan USA (Headquarter) Italy Russia Sweden India SOUTH AMERICA Malaysia Singapore AUSTRALIA Singapore Switzerland Slovenija Poland Turkey Australia United States United Kingdom With operating culture built on its belief in sustaining growth, pursuit of excellence, and most importantly, customer satisfaction, Firstohm will continue to be a prestigious player and a valuable partner in the electronic component industry. At a Glance  Services Available:  Registered Total Capital: USD16.70million ► Resistor Manufacuring  Factory Locations: Hualien, Taiwan ► Resistor Research and Development  Main customer locations: Europe, China, Taiwan, Southeast Asia, America ► Technical Consulting  Proprietary Manufacturing Equipments and In-house R&D Capability  Specialty Item: MELF Resistors FIRST RESISTOR & CONDENSER CO., LTD. 9F., NO.233, Sec. 4, Xinyi RD., Da-an District, Taipei 106, Taiwan. TEL: +886 2 2705 1878 　 FAX: +886 2 2703 6701 E-mail: general@firstohm.com.tw Firstohm group commits to make the earth a better place