The HMA121 series is a 4-pin optocoupler with a gallium arsenide infrared LED driving a silicon phototransistor in a mini-flat package with 2.54 mm lead pitch and 2.4 mm maximum standoff height. It offers current transfer ratio groups, with the HMA121B variant rated at 50-150%. The device supports collector-emitter voltage up to 80 V, continuous collector current up to 80 mA, and isolation voltage of 3750 Vrms. It is certified by UL, CSA, BSI, and VDE, with creepage and clearance of at least 5 mm. The package is suitable for infrared reflow soldering up to 230°C for 30 seconds and is available in tape and reel packaging. Operating temperature ranges from -40°C to +100°C, and storage temperature from -40°C to +125°C.
OPTOISO 3.75KV TRANSISTOR 4SMD Product overview: HMA121BR1V 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-HMA121BR1V can be used for catalog matching and distributor lookup.
| ERSAELECTRONICS PTE. LTD. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | 903-HMA121BR1V |
| Product Name | 3.75KV Bipolar Transistor |
| Package Type | Reel - TR |
