HMA121R1

Transistor, Photovoltaic Output Optoisolators Overview

The HMA121R1 is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output and utilizes a 4-SMD gull wing package for surface mount installation. The device provides an isolation voltage of 3750 Vrms, ensuring robust electrical separation 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 unit operates within a temperature range of -40°C to +100°C with a power dissipation capacity of 150 mW.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage isolation capability suitable for sensitive signal transmission
• Utilizes a compact surface-mount package design for automated assembly integration
• Features a standard NPN phototransistor output configuration for logic interfacing

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial automation control systems
• Machine vision interface circuits
• Robotics signal isolation modules

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through authorized distribution channels due to obsolete status. Confirm RoHS compliance documentation matches specific manufacturing lot requirements. Validate package integrity upon receipt as the component is no longer in active production. Ensure storage conditions adhere to moisture sensitivity levels specified in the original datasheet to maintain performance reliability during installation.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel transistor output isolator is required for space-constrained designs. Consider the 4-SMD gull wing footprint compatibility with existing PCB layouts. Evaluate the 3750 Vrms isolation rating against system safety standards. Assess thermal management needs given the 150 mW power dissipation limit in enclosed environments.

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 requiring reliable signal transfer across isolated boundaries. The manufacturer has transitioned production responsibilities, reflecting broader industry shifts in legacy component portfolios.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.