4N35-500E

Overview

The Broadcom Limited 4N35-500E is a single-channel transistor output optocoupler housed in a PDIP-6 Gull Wing package. It features an NPN phototransistor output with a maximum collector current of 100 mA and a collector-emitter voltage rating of 30 V. The device provides an isolation voltage of 3550 Vrms and supports a forward current of up to 60 mA. Key electrical parameters include a minimum current transfer ratio of 100%, a typical forward voltage of 1.5 V, and rise/fall times of 10 µs each. It operates within a temperature range of -55°C to +100°C.

Feature Summary

• Provides galvanic isolation between input and output circuits using an infrared LED and NPN phototransistor pair.
• Features a standard six-pin DIP package suitable for through-hole mounting applications.
• Designed for general-purpose signal switching and logic interface functions.

Applications

• General-purpose signal isolation
• Logic level shifting
• Switching power supply feedback loops

Procurement Notes

Verify the specific suffix '500E' corresponds to the required tape and reel packaging configuration, as standard variants may differ in shipping format. Confirm RoHS compliance status directly with the manufacturer or authorized distributor documentation prior to procurement. Ensure the ordering part number matches the exact datasheet revision to avoid discrepancies in mechanical dimensions or electrical characteristics during integration.

Selection Notes

Select this component when a cost-effective, general-purpose optocoupler with moderate speed requirements is needed. The 10 µs switching time suits low-frequency digital signals but is unsuitable for high-speed data transmission. Consider the 3550 Vrms isolation rating for basic safety barrier requirements. Evaluate thermal dissipation capabilities if operating near the upper temperature limit of 100°C.

Part Context

The 4N35 series is a widely recognized family of single-channel optocouplers produced by Broadcom Limited. The 4N35-500E variant specifically denotes the version packaged in reels or cut tape, distinguishing it from bulk-packaged equivalents. This component belongs to the broader category of transistor-output optocouplers, serving as a standard solution for isolating microcontroller signals from higher voltage domains in industrial and consumer electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify pinout compatibility and electrical specifications against alternative manufacturers' offerings before substitution.