HMA121EV

Transistor, Photovoltaic Output Optoisolators Overview

The HMA121EV is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output and utilizes SMD-4 surface-mount packaging. The device provides 3750 Vrms insulation voltage for circuit isolation. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a maximum collector current of 80 mA, and a power dissipation of 150 mW. The forward current rating is 50 mA with a forward voltage of 1.3 V. It operates within a temperature range of -40°C to +100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage electrical isolation via 3750 Vrms insulation capability
• Utilizes an NPN phototransistor output configuration for signal transmission
• Designed for surface-mount installation in compact electronic assemblies

Transistor, Photovoltaic Output Optoisolators Applications

• Sensitive electronics requiring high-performance optoisolation
• General-purpose signal coupling in industrial equipment
• Power supply feedback loops for circuit protection

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix EV against official datasheets to confirm package type and compliance status. Confirm availability as distribution channels may vary. Ensure compatibility with existing design constraints regarding thermal management and isolation requirements before finalizing procurement decisions.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel transistor output is required with high isolation voltage. Consider the SMD-4 package for space-constrained designs. Evaluate the 80 V collector-emitter voltage and 80 mA current limits against load requirements. Verify operating temperature ranges meet environmental specifications.

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. Variants such as HMA121E and HMA121AR3 share similar core electrical characteristics but differ in packaging or reel configurations. The HMA121EV specifically denotes the standard surface-mount variant.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for direct substitutes within the HMA121 family, such as HMA121E or HMA121AR3, ensuring pinout and electrical ratings match. Verify that any alternative maintains the 3750 Vrms isolation rating and NPN output type.