HMHA2801

Transistor, Photovoltaic Output Optoisolators Overview

The HMHA2801 is a single-channel optocoupler featuring an NPN phototransistor output. It provides 3750Vrms isolation voltage and operates within a -55°C to 100°C temperature range. The device utilizes a GaAs infrared LED input with a typical forward voltage of 1.3V and maximum DC forward current of 50mA. The phototransistor output supports a maximum collector-emitter voltage of 80V, saturation voltage of 300mV, and peak current of 50mA. Current transfer ratio ranges from 80% to 600% at 5mA input. Switching times are typically 3µs for both rise and fall. It is housed in a 4-Mini-Flat surface-mount package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates a GaAs infrared LED with an NPN silicon phototransistor for signal transmission
• Provides high-voltage electrical isolation between input and output circuits
• Designed for compact surface-mount applications with minimal footprint

Transistor, Photovoltaic Output Optoisolators Applications

• AC-DC commercial power supplies
• Consumer electronic devices

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific ordering suffix to confirm packaging configuration, as standard tubes differ from tape-and-reel variants like HMHA2801AR1V. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the selected variant matches the required current transfer ratio specifications for your circuit design.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when space-constrained designs require reliable galvanic isolation with moderate speed performance. The Mini-Flat package offers a smaller footprint compared to traditional SOIC options. Consider the 80% to 600% CTR range for logic interface compatibility. Verify that the 3750Vrms isolation rating meets the safety standards of the target application environment.

Transistor, Photovoltaic Output Optoisolators Part Context

The HMHA2801 belongs to the HMHA series of transistor-output optocouplers manufactured by onsemi. This family focuses on providing efficient isolation solutions in compact form factors suitable for modern electronics. The device represents a standard solution for basic digital signal isolation tasks where size and cost efficiency are primary design drivers.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

HMHA2801CR2: Offers similar functionality but with different CTR ranges (200%-400%) and reel packaging. HMHA281V: Features lower isolation voltage (2500Vrms) and is currently discontinued.