4N25300W

Overview

The onsemi 4N25300W is a single-channel optocoupler featuring an infrared LED coupled to a phototransistor with a base terminal for improved switching performance. It utilizes a 6-pin DIP package designed for through-hole mounting. The device provides a high isolation voltage of 5300Vrms, ensuring robust signal transmission across isolated circuits. Key electrical parameters include a maximum forward current of 100mA and a typical rise/fall time of 2µs. It operates within a temperature range of -55°C to 100°C and meets UL certification standards for safety compliance in industrial applications.

Feature Summary

• Integrated phototransistor output with base terminal for enhanced switching speed
• High dielectric isolation capability for safe circuit separation
• Wide operating temperature range suitable for harsh environments
• Compliant with international safety standards including UL certification

Applications

• Industrial control systems requiring galvanic isolation
• Solid-state relay driver circuits
• Microcontroller interface isolation
• Power supply feedback loops

Procurement Notes

Verify the specific suffix '300W' against official datasheets to confirm packaging quantity and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for 6-DIP packages. Cross-reference lead times and availability directly with authorized distributors as stock levels fluctuate. Confirm that the component meets all required regulatory certifications for your target market before finalizing procurement orders.

Selection Notes

Select this component when high isolation voltage and fast switching are critical. The base terminal allows for faster turn-off times compared to standard phototransistors. Consider the 6-DIP form factor for through-hole assembly requirements. Evaluate thermal management needs given the wide operating temperature range. Compare against similar models like the 4N25 series if lower isolation ratings are acceptable.

Part Context

This part belongs to the 4N25 family of optocouplers, widely used for general-purpose isolation. The 4N25300W variant specifically denotes a particular packaging or bulk configuration within this lineage. It serves as a reliable solution for transferring digital signals between isolated domains while maintaining electrical safety barriers in power electronics and communication interfaces.

Replacement Considerations

The H11A3300 is listed as a discontinued alternative with similar specifications. Verify pinout compatibility and electrical characteristics such as CTR and isolation voltage before substitution. Other generic 4N25 equivalents may require validation of switching speeds and package dimensions.