1N4479 TR PBFREE

Single Zener Diodes Overview

The Central Semiconductor Corp 1N4479 TR PBFREE is a silicon Zener diode from the 1N4460 series, housed in a DO-41 axial leaded package. It provides a nominal Zener voltage of 39 V with a 5% tolerance range spanning 37.05 V to 40.95 V. The device supports a maximum power dissipation of 1.5 W and operates within a junction temperature range of -65°C to +200°C. Electrical characteristics include a test current of 6.5 mA, a maximum DC current of 31.2 mA, and a maximum reverse leakage current of 0.05 μA at 37 V.

Single Zener Diodes Feature Summary

• High-quality voltage regulation designed for automotive, industrial, commercial, entertainment, and computer applications.
• Robust thermal performance allowing operation up to a 200°C junction temperature.
• Manufactured using silicon technology for reliable low-noise performance.

Single Zener Diodes Applications

• Automotive electronic circuits
• Industrial control systems
• Commercial equipment power supplies

Single Zener Diodes Procurement Notes

This component has been officially discontinued by Central Semiconductor and is classified as End of Life (EOL). Orders are restricted to available inventory on hand only. No new production is scheduled. Verify stock availability directly with authorized distributors or sales representatives before initiating any purchase requests.

Single Zener Diodes Selection Notes

Select this part only if existing inventory can satisfy immediate requirements. Due to the EOL status, long-term supply cannot be guaranteed. Evaluate alternative components from other manufacturers that match the required 39 V Zener voltage, 1.5 W power rating, and DO-41 package dimensions to ensure future project viability.

Single Zener Diodes Part Context

The 1N4479 belongs to the broader 1N4460 through 1N4496 series of 1.5 Watt silicon Zener diodes. This family covers a wide voltage spectrum from 6.2 V to 200 V, all maintaining a consistent 5% tolerance and utilizing the standard DO-41 case outline. The series is engineered for general-purpose voltage regulation tasks across various sectors.

Single Zener Diodes Replacement Considerations

Central Semiconductor lists no suggested replacement part numbers for the 1N4479. Customers requiring an alternative must source components independently or contact the manufacturer's support team for assistance in locating alternate sources.

Single Zener Diodes FAQ

What is the maximum surge current rating for the 1N4479?

The maximum non-repetitive peak surge current is 0.54 A, measured over an 8.3 ms duration.

Does the 1N4479 have a specific noise characteristic?

Yes, the datasheet describes the series as being suitable for low-noise applications.