H11A4300

Transistor, Photovoltaic Output Optoisolators Overview

The onsemi H11A4300 is a single-channel optoisolator featuring a phototransistor output with an accessible base terminal. It provides high isolation voltage of 5300Vrms and operates within a temperature range of -55°C to 100°C. The device accepts DC input with a typical forward voltage of 1.18V at 10mA and supports a maximum forward current of 100mA. Output characteristics include a collector-emitter saturation voltage of 400mV and a minimum current transfer ratio of 10% at 10mA. It utilizes a 6-DIP package for through-hole mounting.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrated phototransistor output with exposed base pin for gain control or speed enhancement
• High dielectric isolation capability suitable for noise-sensitive environments
• Wide operating temperature range supporting industrial applications

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial automation signal isolation
• Microcontroller interface circuits
• Power supply feedback loops

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity due to discontinued status. Confirm package dimensions match design requirements. Check for RoHS compliance documentation. Ensure storage conditions maintain moisture sensitivity level 1 integrity. Validate supplier authorization for legacy parts.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when base access is required for circuit optimization. Consider the 10% CTR minimum for logic level compatibility. Evaluate thermal management for high ambient temperatures. Compare switching speeds against application timing constraints.

Transistor, Photovoltaic Output Optoisolators Part Context

Part of the H11A series, this device belongs to onsemi's legacy optocoupler portfolio. It shares architectural similarities with other single-channel transistor output isolators but distinguishes itself through the integrated base terminal feature.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes are unavailable as the part is obsolete. Similar alternatives include the 4N27M from onsemi, which offers comparable functionality but lacks the base terminal configuration.