The HMA121 series is a 4-pin mini-flat package optocoupler consisting of a gallium arsenide infrared emitting diode driving a silicon phototransistor, with a lead pitch of 2.54 mm and a maximum standoff height of 2.4 mm. It has a collector-emitter voltage rating of up to 80 V and a current transfer ratio (CTR) range among variants of 50-600%, with the HMA121A variant specifically rated at 100-300%. The device complies with UL, CSA, BSI, and VDE safety certifications, supports infrared reflow soldering up to 230°C for 30 seconds, and maintains a minimum creepage and clearance of 5 mm. The series is certified to operate from -40°C to +100°C and has a storage temperature range of -40°C to +125°C.
Optocoupler DC-IN 1-CH Transistor DC-OUT 4-Pin Mini-Flat Box Product overview: HMA121AV from onsemi 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 key electrical ratings, package details, and application requirements. Search-friendly keywords include transistor, BJT, switching, amplification, 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-HMA121AV can be used for catalog matching and distributor lookup.
| ERSAELECTRONICS PTE. LTD. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | 903-HMA121AV |
| Product Name | Bipolar Transistor |
| IC(max) | 80 milliamps |
