VOS628A-3T

Transistor, Photovoltaic Output Optoisolators Overview

The VOS628A-3T is a single-channel transistor output optocoupler from Vishay, housed in a 4-SSOP surface-mount package. It provides an isolation voltage of 3750Vrms and supports AC or DC input signals. The device features an NPN phototransistor output with a maximum collector current of 50mA and a collector-emitter voltage rating of 80V. Key electrical parameters include a forward current of up to 50mA, a forward voltage of 1.5V, and a current transfer ratio ranging from 100% to 200% at 1mA. Operating temperatures span from -55°C to +110°C, with rise and fall times of 10µs and 11µs respectively.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage galvanic isolation between input and output circuits
• Supports both AC and DC signal transmission for versatile interface applications
• Utilizes a compact surface-mount SSOP-4 package for automated assembly

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring signal isolation
• Power supply feedback loops
• Communication interface isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix '3T' corresponds to the required tape and reel packaging configuration as defined by Vishay. Confirm that the 4-SSOP footprint matches the target PCB design. Ensure compliance with RoHS directives if applicable to the end product. Cross-reference the datasheet revision date to confirm parameter stability before finalizing component selection.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single channel with moderate speed (10µs) and high isolation voltage (3750Vrms) is required. Consider the 100-200% CTR range for biasing calculations. Compare against other VOL series variants if different insulation ratings or package types are needed. Ensure the operating temperature range meets the environmental requirements of the application.

Transistor, Photovoltaic Output Optoisolators Part Context

The VOS628A-3T belongs to Vishay's VOL series of optocouplers, designed for general-purpose isolation tasks. It shares architectural similarities with other devices in the family but is distinguished by its specific CTR binning and packaging options. This model is part of a broader lineup offering various isolation voltages and output types for diverse electronic designs.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official cross-reference tools or contact Vishay directly for qualified alternatives.