The HMA121 series is a 4-pin optocoupler with a gallium arsenide infrared emitting diode 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 the grade, a collector-emitter breakdown voltage of 80 V, and a continuous collector current of 80 mA. The device offers 3750 VRMS isolation voltage, creepage and clearance of at least 5 mm, and is certified by UL, CSA, BSI, and VDE. It supports infrared reflow soldering up to 230°C for 30 seconds and operates from -40°C to +100°C.
OPTOISO 3.75KV TRANSISTOR 4SMD Product overview: HMA121DR1V 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-HMA121DR1V can be used for catalog matching and distributor lookup.
| ERSAELECTRONICS PTE. LTD. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | 903-HMA121DR1V |
| Product Name | 3.75KV Bipolar Transistor |
| Package Type | Reel - TR |
