HMA121CV

Transistor, Photovoltaic Output Optoisolators Overview

The HMA121CV is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output and utilizes a 4-SMD surface-mount package. The device provides an insulation voltage of 3750 Vrms, ensuring robust isolation between input and output circuits. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a maximum collector current of 80 mA, and a forward current rating of 50 mA. The component operates within a temperature range of -40°C to +100°C and has a power dissipation capacity of 150 mW.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage isolation with 3750 Vrms insulation capability for safe signal transmission across potential differences.
• Integrates an NPN phototransistor output stage suitable for interfacing with digital logic or control circuits.
• Designed for surface-mount assembly using a compact 4-SMD footprint to facilitate automated PCB placement.

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Power supply feedback loops for voltage regulation
• Signal transmission in noisy electromagnetic environments

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation against official datasheets to confirm pinout compatibility and CTR binning. Confirm RoHS compliance status through manufacturer documentation. Check for obsolescence notices as this component may be subject to lifecycle changes. Ensure sourcing channels provide traceability certificates matching the original manufacturer specifications.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage is required in a small surface-mount form factor. Consider the NPN output type for compatibility with standard pull-up resistor configurations. Evaluate the thermal performance within the specified operating temperature range. Compare current transfer ratio requirements against application load conditions before finalizing the design.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HMA121 series of transistor output optocouplers from onsemi. The series is designed for general-purpose isolation applications where compact size and reliable performance are critical. The HMA121CV variant specifically denotes the commercial grade version with standard packaging options.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Consult official substitution guides for equivalent parts with matching isolation ratings and pin configurations. Verify that alternative components meet the same electrical specifications for voltage, current, and temperature ranges.