The HMA121 series is a 4-pin optocoupler with a gallium arsenide infrared LED driving a silicon phototransistor in a compact mini-flat package with 2.54 mm lead pitch and 2.4 mm maximum standoff height. It features a current transfer ratio ranging from 50% to 600% depending on grade, a collector-emitter voltage rating of up to 80 V, and an isolation voltage of 3750 Vrms. The device is certified by UL, CSA, BSI, and VDE, with creepage and clearance of at least 5 mm. It supports infrared reflow soldering up to 230°C for 30 seconds and is available in tape and reel packaging. The HMA121R2V variant includes VDE approval and is shipped in 2500-unit reels.
OPTOISO 3.75KV TRANSISTOR 4SMD Product overview: HMA121R2V 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-HMA121R2V can be used for catalog matching and distributor lookup.
| ERSAELECTRONICS PTE. LTD. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | 903-HMA121R2V |
| Product Name | 3.75KV Bipolar Transistor |
| Package Type | 4-SMD, Gull Wing |
