1N5259B-TAP

Single Zener Diodes Overview

The Vishay 1N5259B-TAP is a silicon planar power Zener diode in the DO-35 (DO-204AH) axial leaded package. It provides a nominal Zener voltage of 39 V with a standard tolerance of ±5%. The device operates at a test current of 3.2 mA and dissipates up to 500 mW of power. Key electrical characteristics include a maximum dynamic resistance of 80 Ω, a reverse leakage current of 0.1 µA at 21 V, and a typical temperature coefficient of 0.094 %/K.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Features a standard ±5% Zener voltage tolerance designated by the 'B' suffix
• Designed for high thermal stability with a junction temperature rating up to 175 °C

Single Zener Diodes Applications

• Voltage stabilization circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify that the ordering code includes the TAP suffix to confirm the specific ammopack packaging format containing 10,000 units per reel. Ensure the component selection matches the required ±5% tolerance designation. Confirm compliance with material categorization definitions as outlined in the manufacturer's documentation before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component when a 39 V reference point is required within a low-power application. The DO-35 package supports through-hole mounting, making it suitable for general-purpose circuit boards. Evaluate the 500 mW power dissipation limit against the expected operating conditions to ensure safe thermal equilibrium during continuous operation.

Single Zener Diodes Part Context

This part belongs to the 1N5221 to 1N5267 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series covers a wide range of nominal voltages from 2.4 V to 75 V. The 1N5259B variant specifically targets applications requiring a 39 V breakdown voltage with standard manufacturing tolerances.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering equivalent 39 V Zener diodes in the DO-35 package. Verify that substitute components meet the same 500 mW power dissipation and ±5% voltage tolerance requirements.