The HMA121R4V is a 4-pin mini-flat package optocoupler consisting of a gallium arsenide infrared emitter driving a silicon phototransistor, with a lead pitch of 2.54 mm and a maximum standoff height of 2.4 mm. It provides 3750 VRMS isolation, supports continuous collector current up to 80 mA, and operates over a temperature range of -40°C to +100°C. The device is certified by UL, CSA, BSI, and VDE, and is available in tape and reel packaging with 180° rotated units. It meets infrared reflow soldering requirements up to 230°C for 30 seconds.
OPTOISO 3.75KV TRANSISTOR 4SMD Product overview: HMA121R4V 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-HMA121R4V can be used for catalog matching and distributor lookup.
| ERSAELECTRONICS PTE. LTD. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | 903-HMA121R4V |
| Product Name | 3.75KV Bipolar Transistor |
| Package Type | 4-SMD, Gull Wing |
