The HMA121CR4 is a 4-pin mini-flat package optocoupler containing a gallium arsenide infrared LED driving a silicon phototransistor, with a lead pitch of 2.54 mm and a maximum standoff height of 2.4 mm. It has a DC current transfer ratio of 100-200% at I_F = 5 mA and V_CE = 5 V, a collector-emitter voltage rating of 80 V, and a peak forward current of 1 A. The device supports infrared reflow soldering up to 230°C for 30 seconds and meets UL, CSA, BSI, and VDE safety certifications. It has 3750 VRMS isolation voltage, creepage and clearance of at least 5 mm, and is available in tape and reel packaging with 2500 units per reel. The part operates from -40°C to +100°C and has a storage temperature range of -40°C to +125°C.
OPTOISO 3.75KV TRANSISTOR 4SMD Product overview: HMA121CR4 from ON Semiconductor is a Bipolar Transistor for signal amplification, switching, driver stages, discrete power control, and general electronic circuit design. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 3.75KV. Search-friendly keywords include transistor, BJT, switching, amplification, 3.75KV, Bipolar Transistor, Transistor, Photovoltaic Output Optoisolators. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 903-HMA121CR4 can be used for catalog matching and distributor lookup.
| ERSAELECTRONICS PTE. LTD. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | 903-HMA121CR4 |
| Product Name | 3.75KV Bipolar Transistor |
| Package Type | 4-SMD, Gull Wing |
