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HMA2701R3 is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists onsemi. Its product description is OPTOISO 3.75KV 1CH TRANS 4-SMD. Review the specifications below when checking this part for your BOM.
The HMA2701R3 is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output and utilizes SMD-4 surface-mount packaging. Key electrical parameters include a maximum collector-emitter voltage of 40 V, a maximum collector current of 80 mA, and a forward voltage of 1.4 V at a forward current of 50 mA. The device provides an insulation voltage of 3750 Vrms and operates within a temperature range of -40°C to +100°C. Power dissipation is rated at 150 mW, with a reverse voltage capability of 6 V.
This component is officially listed as obsolete and no longer manufactured by onsemi. Availability is restricted to existing stock or third-party distributors. Verify authenticity and storage conditions carefully when sourcing from non-direct channels. Ensure the replacement strategy accounts for end-of-life status and long-term supply chain risks.
Engineers should evaluate alternative components due to the obsolete status of this part. Consider modern equivalents with similar pinouts and electrical specifications to ensure compatibility. Review updated datasheets for any changes in performance characteristics or certification standards before finalizing design choices.
The HMA2701R3 belongs to the broader category of transistor output optocouplers produced by onsemi. These devices are commonly used for electrical isolation in digital and analog signal transmission. The specific model represents a legacy surface-mount solution designed for reliable operation in various electronic environments prior to its discontinuation.
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