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HMHAA280R1 is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists onsemi. Its product description is OPTOISO 3.75KV TRANS 4-MINI-FLAT. Review the specifications below when checking this part for your BOM.
The HMHAA280R1 is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output and operates with a maximum collector-emitter voltage of 80 V and a collector current of 50 mA. The device provides an isolation voltage of 3750 Vrms and supports a forward current of up to 50 mA with a typical forward voltage of 1.4 V. It exhibits a current transfer ratio ranging from 50% to 600%, with rise and fall times of 3 µs each. The component functions within a temperature range of -55°C to +100°C, dissipates 150 mW, and utilizes a 4-pin SMD Mini-Flat package.
Verify the specific suffix R1 against official datasheets to confirm pinout and packaging details. Confirm RoHS compliance status through manufacturer declarations. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.
Select this component when high isolation voltage is required in a small footprint. Ensure the application current remains within the 50 mA limit. Verify that the 3 µs switching speed meets the system timing requirements.
This part belongs to the HMHA series of optocouplers designed for general-purpose isolation. It shares family characteristics such as the Mini-Flat package and phototransistor output architecture with related models like HMHA2801 and HMHAA280R2.
HMHA2801R2 is listed as a potential substitute.
Explore related parts through Optocouplers, Optoisolators, Isolators, all product categories, ChipApex homepage.
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