The HMA124 is a 4-pin mini-flat package optocoupler consisting of a gallium arsenide infrared emitting diode driving a silicon phototransistor, designed for applications such as AC line monitoring, digital logic inputs, and telephone line reception. It features a 2.54 mm lead pitch, 3750 Vrms isolation voltage, and a minimum current transfer ratio of 100% at 5 mA forward current and 5 V collector-emitter voltage. The device supports a collector-emitter voltage of up to 80 V, with a maximum forward current of 50 mA and operating temperature range from -40 to +100°C. It is certified by UL, CSA, BSI, and VDE, with creepage and clearance of at least 5 mm. The package has a maximum standoff height of 2.4 mm.
OPTOISO 3.75KV TRANSISTOR 4SMD Product overview: HMA124R4 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-HMA124R4 can be used for catalog matching and distributor lookup.
| ERSAELECTRONICS PTE. LTD. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | 903-HMA124R4 |
| Product Name | 3.75KV Bipolar Transistor |
| Package Type | 4-SMD, Gull Wing |
