HMHA281V

Transistor, Photovoltaic Output Optoisolators Overview

The HMHA281V is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output and operates with a DC input. The device provides high isolation capability with an insulation voltage of 3750 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a maximum collector current of 50 mA, and a forward current of 50 mA. The typical rise and fall times are both 3 µs. The component supports a wide operating temperature range from -55°C to +100°C and is housed in a 4-SMD (Mini-Flat) surface-mount package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides galvanic isolation between input and output circuits using a phototransistor configuration.
• Features a compact 4-pin Mini-Flat surface-mount package suitable for space-constrained designs.
• Supports high isolation voltage ratings for enhanced safety in signal transmission applications.

Transistor, Photovoltaic Output Optoisolators Applications

• General-purpose digital signal isolation
• Microcontroller interface circuits
• Low-speed data communication links

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'V' against the manufacturer's latest datasheet to confirm packaging details and compliance status. Check current availability as distribution channels may list varying stock levels or discontinued statuses. Ensure the selected variant matches the required insulation voltage and package dimensions for your PCB layout.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a small form factor is required alongside standard transistor output characteristics. Consider the 3750 Vrms isolation rating for applications requiring robust noise immunity. Verify that the 50 mA collector current limit meets the load requirements of the receiving circuitry before finalizing the design.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HMHA series of optocouplers from onsemi, designed for general-purpose isolation tasks. The series offers various packaging options including tube and reel configurations. The HMHA281V specifically denotes the version packaged in tape and reel format, facilitating automated assembly processes.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes within the same family include HMHA281R2 and HMHA281R3. These variants share identical electrical specifications but differ primarily in packaging type, such as bulk tubes versus cut tape reels. Verify pinout compatibility and package dimensions when swapping between these specific suffixes.