IL212AT

Transistor, Photovoltaic Output Optoisolators Overview

The IL212AT is a single-channel optocoupler featuring a Gallium Arsenide infrared LED coupled to a silicon NPN phototransistor with a base connection. It provides 4000Vrms isolation voltage and operates within a temperature range of -55°C to 100°C. Key electrical parameters include a maximum collector-emitter voltage of 30V, a typical forward voltage of 1.3V, and a maximum DC forward current of 60mA. The device exhibits a minimum current transfer ratio of 50% at 10mA input, with typical turn-on and turn-off times of 3µs each. It is housed in an 8-SOIC surface-mount package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates a GaAs infrared LED with a silicon NPN phototransistor for signal transmission
• Includes a dedicated base terminal on the phototransistor output for enhanced switching control
• Provides high-voltage isolation capability rated at 4000Vrms between input and output circuits

Transistor, Photovoltaic Output Optoisolators Applications

• General-purpose digital signal isolation in industrial control systems
• Interface circuits requiring galvanic separation between low-voltage logic and higher-voltage loads
• Power supply feedback loops for monitoring and regulation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix against the official Vishay datasheet to confirm package dimensions and tape-and-reel specifications. Ensure compliance with RoHS3 directives as indicated in manufacturer documentation. Confirm that the operating temperature range meets the thermal requirements of the final assembly environment before procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a phototransistor output with a base connection is required for faster switching or improved linearity compared to standard outputs. Compare the 50% minimum CTR against system drive requirements. Consider the 8-SOIC footprint for PCB layout constraints and verify that the 30V output voltage rating suffices for the intended load application.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the IL21xAT family from Vishay Semiconductor Opto Division, which includes variants like the IL211AT and IL213AT. These components share identical physical packages and basic optical structures but differ primarily in their Current Transfer Ratio (CTR) specifications. The IL212AT serves as a mid-range option within this series, balancing speed and gain characteristics for general isolation tasks.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes within the same family include the IL211AT and IL213AT, provided the specific CTR differences are acceptable for the circuit design. Verify pinout compatibility and ensure that any alternative component maintains the same 8-SOIC package and 4000Vrms isolation rating.