1N5257B BK TIN/LEAD

Single Zener Diodes Overview

The 1N5257B BK TIN/LEAD is a single silicon planar Zener diode manufactured by Central Semiconductor Corp. It features a DO-35-2 axial through-hole package with tin/lead terminations. The device provides a nominal Zener voltage of 33 V with a 5% tolerance at a test current of 3.8 mA. Key electrical characteristics include a maximum power dissipation of 500 mW, a dynamic impedance of 58 ohms, and a maximum reverse leakage current of 100 nA. It operates within a temperature range of -65°C to +200°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation via the Zener breakdown effect in the reverse bias region.
• Utilizes a glass-passivated silicon junction for reliable performance under specified thermal conditions.
• Designed for through-hole mounting using an axial leaded DO-35-2 package configuration.

Single Zener Diodes Applications

• Voltage reference circuits requiring precise potential levels.
• Overvoltage protection stages in electronic systems.
• Clamping applications for signal or power lines.

Single Zener Diodes Procurement Notes

Verify the specific manufacturer designation, as Central Semiconductor Corp may be associated with Microchip Technology. Confirm that the suffix indicates tin/lead plating and bulk packaging. Ensure the component meets required RoHS exemptions if applicable. Cross-reference datasheets from authorized distributors to validate the exact electrical parameters and physical dimensions before integration into designs.

Single Zener Diodes Selection Notes

Select this component when a 33 V regulation point is required with low leakage current. The 500 mW power rating suits moderate current applications. Verify compatibility with existing PCB footprints for the DO-35-2 package. Consider the operating temperature range limits for high-temperature environments. Compare dynamic impedance specifications against circuit sensitivity requirements.

Single Zener Diodes Part Context

This part belongs to the standard 1N52xx series of small-signal Zener diodes. These components are widely used for general-purpose voltage regulation and protection. The 'B' suffix typically denotes a 5% voltage tolerance. The DO-35 package is a common industry standard for low-power axial diodes.

Single Zener Diodes Replacement Considerations

Equivalent parts include the ON Semiconductor 1N5257B and Taiwan Semiconductor 1N5257B A0G. Verify pinout compatibility and ensure replacement devices meet the same 33 V nominal voltage and 500 mW power dissipation ratings. Check for identical package dimensions to fit existing board layouts.