VOS615A-3T

Transistor, Photovoltaic Output Optoisolators Overview

The VOS615A-3T is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor output housed in a compact 4-SSOP surface-mount package. The device provides an isolation voltage of 3750 Vrms and supports a maximum collector current of 50 mA with a collector-emitter voltage rating of 80 V. The typical current transfer ratio ranges from 50% to 600%, ensuring reliable signal transmission. Operating temperatures span from -55°C to +110°C, with power dissipation rated at 170 mW.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage electrical isolation between input and output circuits via an internal LED and NPN phototransistor structure.
• Delivers high current transfer efficiency suitable for driving logic inputs or interfacing with microcontrollers.
• Designed for surface-mount assembly to facilitate automated PCB manufacturing and space-constrained layouts.

Transistor, Photovoltaic Output Optoisolators Applications

• General-purpose digital signal isolation in industrial control systems
• Interface circuits for microprocessors and microcontrollers requiring galvanic separation
• Power supply feedback loops for monitoring and regulation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix against official Vishay documentation to confirm pinout compatibility and CTR binning. Ensure the SSOP-4 footprint matches the target PCB design. Confirm RoHS compliance status through the manufacturer's latest datasheet revision. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when surface-mount packaging is required alongside high isolation voltage capabilities. Compare the 3750 Vrms rating against system safety requirements. Evaluate the 50-600% CTR range to ensure adequate noise margin for the intended load. Consider the 4-SSOP dimensions for board space optimization compared to through-hole alternatives.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the VOS615 series of transistor output optocouplers. It serves as the surface-mount equivalent to through-hole variants like the VO615A-3. The series is designed for general-purpose isolation applications requiring robust performance in compact form factors.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The SFH615A-3 is listed as a recommended alternative in public distributor data. Verify mechanical footprint differences and electrical parameter alignment before substitution.