1N4479 BK PBFREE

Single Zener Diodes Overview

The Central Semiconductor Corp 1N4479 BK PBFREE is a silicon Zener diode with a nominal voltage of 39 V and a 5% tolerance. It operates within a power dissipation rating of 1.5 W and features a DO-41 axial package. The device supports junction temperatures from -65°C to +200°C, maintains a maximum reverse current of 0.05 mA at 31.2 V, and handles a peak surge current of 0.54 A.

Single Zener Diodes Feature Summary

• Designed for high-quality voltage regulation in automotive, industrial, commercial, entertainment, and computer applications.

Single Zener Diodes Applications

• Automotive electronics
• Industrial control systems
• Commercial equipment
• Computer applications

Single Zener Diodes Procurement Notes

Verify the End-of-Life status before procurement. This component has been discontinued by the manufacturer. Orders are restricted to available inventory only. Confirm final shipment dates and minimum order quantities directly with the supplier or sales representative prior to placing any purchase orders.

Single Zener Diodes Selection Notes

Select this component for standard voltage regulation tasks requiring a 39 V reference point. Ensure the design accommodates the specified 1.5 W power dissipation and the thermal limits of the DO-41 package. Verify that the operating environment falls within the -65°C to +200°C junction temperature range.

Single Zener Diodes Part Context

This part belongs to the 1N4460 through 1N4496 series of 1.5 Watt silicon Zener diodes manufactured by Central Semiconductor. The series provides various voltage options ranging from 6.2 V to 200 V, all featuring a consistent 5% tolerance and DO-41 axial leaded packaging for through-hole mounting.

Single Zener Diodes Replacement Considerations

No official replacement part numbers are provided by the manufacturer for this specific model. Contact Central Semiconductor support for assistance in locating an alternate source if necessary.

Single Zener Diodes FAQ

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

The maximum non-repetitive peak surge current (IS) is 0.54 A, measured as a peak 1/2 sinusoidal surge of 8.3 ms duration.

Does the PBFREE suffix indicate a functional change?

No, the PBFREE suffix indicates Lead-free plating compliance and does not alter the electrical function or specifications of the diode.