4N29-V

Overview

The Everlight 4N29-V is a single-channel phototransistor output optocoupler designed for through-hole mounting. It features a high isolation voltage of 5000 Vrms between input and output circuits. The device utilizes a photodarlington output configuration, providing a minimum current transfer ratio of 500%. Key electrical specifications include a maximum collector-emitter voltage of 55 V, a forward voltage of 1.5 V, and a power dissipation rating of 200 mW. The component is housed in a standard tube package.

Feature Summary

• High insulation voltage capability for safe signal transmission across isolated domains
• Photodarlington output structure ensures high sensitivity and gain
• Through-hole construction suitable for robust mechanical integration

Applications

• General purpose signal isolation
• Switching applications requiring galvanic separation
• Industrial control circuit interfacing

Procurement Notes

Verify the specific suffix 'V' against the manufacturer's latest documentation to confirm compliance status and availability. Note that this product may be discontinued or subject to limited supply conditions. Confirm RoHS details and shipping restrictions relevant to your region before finalizing procurement plans.

Selection Notes

Select this component when high gain from a phototransistor output is required rather than a standard transistor. Ensure the 55 V collector-emitter voltage meets the load requirements. Consider the slower switching speed inherent to Darlington outputs compared to standard transistors when designing timing-critical circuits.

Part Context

This part belongs to the 4NXX series of optocouplers produced by Everlight Electronics. The series includes variants such as the 4N29, 4N30, 4N31, and 4N32. These devices share common form factors and isolation characteristics but differ in specific electrical parameters like current transfer ratios and switching speeds.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-referencing with other manufacturers requires verifying pinout compatibility and ensuring equivalent isolation voltage and current transfer ratio specifications.