The HMA121E 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 80 V, a continuous collector current of 80 mA, and a DC current transfer ratio (CTR) of 150-300% at I_F = 5 mA and V_CE = 5 V. The device features a creepage and clearance of at least 5 mm, is certified by UL, CSA, BSI, and VDE, and supports infrared reflow soldering up to 230°C for 30 seconds. It is designed for applications such as digital logic inputs, microprocessor interfaces, and AC line monitoring.
1-CH DC Optocoupler, 80V VCEO, 80mA Ic, 300% CTR, SMD Product overview: HMA121E 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 SMD, 80V, 80mA. Search-friendly keywords include transistor, BJT, switching, amplification, SMD, 80V, 80mA, 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-HMA121E can be used for catalog matching and distributor lookup.
| ERSAELECTRONICS PTE. LTD. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | 903-HMA121E |
| Product Name | SMD 80V 80mA Bipolar Transistor |
| IC(max) | 80 milliamps |
