VO205AT

Transistor, Photovoltaic Output Optoisolators Overview

The VO205AT is a dual-channel transistor output optocoupler from Vishay, housed in an SOIC-8 package. It features a GaAs infrared LED coupled to silicon NPN phototransistors with base connections. Key electrical parameters include a 4000 Vrms isolation voltage, a collector-emitter voltage of 70 V, and a maximum collector current of 50 mA. The device operates within a temperature range of -40°C to +100°C, with a typical rise time of 3 μs and fall time of 4.7 μs.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration with integrated base connections for enhanced switching speed control
• High insulation capability rated at 4000 Vrms for robust circuit isolation
• Optimized response times with typical rise and fall durations under 5 microseconds

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial automation signal isolation
• Solid-state relay driver circuits
• Microprocessor system interface isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation against official Vishay documentation to confirm pinout compatibility and electrical tolerances. Ensure that the procurement source provides valid UL and CSA certification files corresponding to the E52744 file number. Cross-reference the datasheet revision date to guarantee alignment with current manufacturing specifications and compliance standards.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is required within a compact surface-mount footprint. The internal base connection allows for external resistor adjustment to optimize switching performance. Consider the 70 V collector-emitter rating and 50 mA current capacity to ensure adequate headroom for the target load conditions.

Transistor, Photovoltaic Output Optoisolators Part Context

The VO205AT belongs to Vishay's VO series of high-speed optocouplers. It shares architectural similarities with the VO206AT, VO207AT, and VO208AT models, differing primarily in channel count and specific electrical characteristics. This series is designed for applications requiring reliable galvanic isolation between low-voltage control logic and higher-voltage power stages.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include the VO206AT, VO207AT, and VO208AT from the same manufacturer family. Verify pin-to-pin compatibility and ensure that the alternative model's current transfer ratio and isolation voltage meet or exceed the design requirements.