4N37S(TA)

Transistor, Photovoltaic Output Optoisolators Overview

The 4N37S(TA) is a single-channel phototransistor output optocoupler manufactured by Everlight Electronics. It provides electrical isolation between input and output circuits with an insulation voltage of 5000 Vrms. The device features a surface-mount SMD-6 package, suitable for automated placement. Key electrical parameters include a maximum collector-emitter breakdown voltage of 80 V, a forward current of 50 mA, and a nominal current transfer ratio of 20%. It operates within a temperature range of -55°C to +110°C and complies with RoHS standards.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High isolation voltage capability of 5000 Vrms between input and output channels
• Compact surface-mount SMD-6 packaging compatible with automatic placement equipment
• Wide operating temperature range extending up to +110°C

Transistor, Photovoltaic Output Optoisolators Applications

• Power supply regulators
• Digital logic inputs
• Microprocessor inputs

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation when ordering, as variations such as (TA) or (V) may indicate different packaging formats like tape and reel. Confirm compliance certifications including UL recognition and RoHS status directly with the manufacturer or authorized distributors. Ensure the selected variant matches the required surface-mount footprint and thermal specifications for the target application environment.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component for applications requiring robust galvanic isolation in compact designs. The 5000 Vrms rating supports high-voltage noise immunity. Consider the 80 V collector-emitter breakdown voltage when designing output stages. The wide temperature range makes it suitable for industrial environments. Verify that the SMD-6 package dimensions fit the PCB layout constraints compared to through-hole alternatives.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the 4N3X series of transistor output optocouplers from Everlight. The series includes variants like 4N35, 4N36, and 4N38, sharing similar functional characteristics but differing in specific ratings or packaging. The 4N37S(TA) specifically denotes the surface-mount version of the standard 4N37 device, maintaining the core performance metrics while adapting to modern assembly techniques.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Compatible substitutes within the same family include 4N35S, 4N36S, and 4N38S, provided pinout and isolation requirements are met. Cross-brand equivalents should be evaluated for matching isolation voltage and current transfer ratio specifications.