4N35-X006

Overview

The Vishay 4N35-X006 is a single-channel phototransistor output optocoupler featuring an infrared LED and silicon NPN phototransistor. It provides 5000 Vrms isolation via double molding technology. The device operates within a -55°C to +100°C range, with a maximum forward current of 60 mA and collector-emitter voltage of 30 V. It offers a minimum CTR of 100% at 10 mA input, typical rise/fall times of 10 µs, and input-output coupling capacitance under 0.5 pF.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using a double-molding manufacturing process.
• Features low input-output coupling capacitance for effective rejection of high-frequency noise during logic coupling.
• Includes a base connection on the phototransistor to facilitate faster switching speeds and improved linearity.

Applications

• AC mains detection circuits
• Reed relay driving applications
• Switch mode power supply feedback loops
• Telephone ring detection systems
• Logic ground isolation interfaces

Procurement Notes

Verify that the specific suffix X006 corresponds to the DIP-6 through-hole package variant rather than surface-mount options. Confirm RoHS compliance status and check for DIN EN 60747-5-5 partial discharge certification requirements if applicable to your safety standards. Ensure ordering documentation matches the exact manufacturer part number to avoid confusion with similar series components.

Selection Notes

Select this component when high isolation voltage and robust noise immunity are required in compact designs. The internal base connection allows for better control over switching characteristics compared to standard variants. Consider the wide operating temperature range for industrial environments. Verify pin compatibility with existing PCB footprints before finalizing the design integration.

Part Context

This device belongs to the industry-standard 4N35 family of single-channel phototransistor couplers. It shares architectural similarities with the 4N36, 4N37, and 4N38 series but is distinguished by its specific packaging and performance parameters. The component represents a commercial plastic phototransistor optocoupler designed for general-purpose isolation tasks.

Replacement Considerations

Direct substitutes include the 4N35, 4N36, 4N37, and 4N38 series from Vishay. Cross-manufacturer equivalents may be considered if isolation voltage and pinout configurations match exactly. Always verify electrical parameter tolerances and package dimensions before substituting.