1N5263B-T

Single Zener Diodes Overview

The Vishay 1N5263B-T is a silicon planar power Zener diode in the DO-35 (DO-204AH) axial leaded package. It provides a nominal Zener voltage of 56 V with a standard tolerance of ±5%. The device dissipates up to 500 mW at thermal equilibrium and operates within a junction temperature range of -65 °C to +175 °C. Electrical characteristics include a maximum reverse leakage current of 100 µA at 43 V, a typical dynamic resistance of 150 Ω at a test current of 2.2 mA, and a forward voltage of 1.1 V maximum at 200 mA.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for high stability and sharp reverse breakdown characteristics
• Features low reverse leakage current levels suitable for precision applications
• Provides standardized electrical data identical to the base 1N5263 series

Single Zener Diodes Applications

• Voltage stabilization circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify that the ordering code includes the specific suffix required for the desired packaging format. Confirm compliance with RoHS directives and material categorization standards before procurement. Ensure the selected variant matches the required tolerance class and package dimensions for the target assembly process.

Single Zener Diodes Selection Notes

Select this component when a 56 V reference point is required in through-hole designs. Consider the 500 mW power dissipation limit and the thermal resistance characteristics for heat management. Verify that the operating environment remains within the specified junction temperature limits to maintain performance stability.

Single Zener Diodes Part Context

This part belongs to the Vishay 1N5221 to 1N5267 family of small signal Zener diodes. The family covers a wide voltage range from 2.4 V to 75 V. Variants are available in multiple packages including MiniMELF, SOT-23, and SOD-123. The 'B' suffix indicates the standard ±5% voltage tolerance.

Single Zener Diodes Replacement Considerations

Direct replacements include other manufacturers' parts meeting the 1N5263 specification. Equivalent devices must match the 56 V Zener voltage, 500 mW power rating, and DO-35 package footprint. Cross-reference datasheets to verify dynamic resistance and leakage current compatibility.