IL217AT

Transistor, Photovoltaic Output Optoisolators Overview

The IL217AT is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It integrates a gallium arsenide infrared LED with an NPN silicon phototransistor featuring a base connection for improved switching performance. The device provides 4000 Vrms isolation voltage and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a minimum current transfer ratio of 100%, a maximum forward current of 60 mA, and a collector-emitter saturation voltage of 400 mV. It is housed in an 8-SOIC surface-mount package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates a gallium arsenide infrared LED with an NPN silicon phototransistor
• Includes a dedicated base connection on the phototransistor for enhanced switching speed
• Provides high insulation voltage capability of 4000 Vrms
• Designed for low input current operation

Transistor, Photovoltaic Output Optoisolators Applications

• General-purpose digital signal isolation
• Microprocessor system interface circuits
• Solid-state relay driver applications
• Industrial control systems requiring galvanic isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'AT' corresponds to the required tape-and-reel packaging configuration. Confirm that the 8-SOIC footprint matches the target PCB design. Ensure compliance with RoHS directives if applicable to the end product. Cross-reference the manufacturer part number against official Vishay documentation to confirm current production status and availability.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a phototransistor output with a base terminal is required for faster turn-off times compared to standard configurations. Consider the 4000 Vrms isolation rating for safety-critical interfaces. Evaluate the 100% minimum CTR requirement against the driving circuit capabilities. Verify that the SOIC-8 package dimensions fit the available board space constraints.

Transistor, Photovoltaic Output Optoisolators Part Context

The IL217AT belongs to the IL21xAT family of optocouplers from Vishay, which includes variants like the IL215AT and IL216AT. These devices share similar physical packages and basic operating principles but differ in specific electrical characteristics such as current transfer ratio ranges. This series is designed for general-purpose isolation tasks where moderate speed and high reliability are necessary.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes within the same Vishay family include the IL215AT and IL216AT, provided their specific CTR specifications meet the design requirements. Verify pinout compatibility and isolation voltage ratings before substitution. No other cross-manufacturer equivalents are confirmed in the provided data.