1N5257B-G

Single Zener Diodes Overview

The 1N5257B-G is a silicon unidirectional voltage regulator diode manufactured by Comchip Technology. It features a nominal Zener voltage of 33 V with a maximum dynamic impedance of 58 Ω at a test current of 3.8 mA. The device supports a maximum power dissipation of 0.5 W and maintains a voltage tolerance of ±5%. It operates within a temperature range up to +175 °C and utilizes a DO-35 axial leaded glass package for through-hole mounting.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using planar die construction
• Features low reverse leakage current characteristics
• Ensures high stability and reliability in voltage reference applications

Single Zener Diodes Applications

• Voltage regulation circuits
• Voltage reference sources
• Protection against overvoltage conditions

Single Zener Diodes Procurement Notes

Verify the specific manufacturer designation, as Comchip Technology typically uses suffixes like -G for RoHS compliance on this series. Confirm the package type matches the required DO-35 form factor. Ensure the 33 V Zener voltage and 5% tolerance align with circuit requirements. Check for any specific testing or traceability requests if applicable to the project specifications.

Single Zener Diodes Selection Notes

Select this component when a standard 33 V regulation point is required in a through-hole design. The 0.5 W power rating suits low-current applications. Consider the 58 Ω dynamic impedance for noise sensitivity. Verify thermal management capabilities given the 175 °C junction limit. Compare against other manufacturers offering identical electrical parameters for supply chain flexibility.

Single Zener Diodes Part Context

This part belongs to the 1N52-series of silicon planar Zener diodes. These components are widely used for general-purpose voltage regulation. The DO-35 package provides a compact solution for axial mounting. The series offers various voltage options ranging from 2.4 V to higher values, maintaining consistent power dissipation ratings across the lineup.

Single Zener Diodes Replacement Considerations

Cross-reference with 1N5257B variants from other manufacturers such as Vishay or Taiwan Semiconductor. Ensure equivalent Zener voltage, power dissipation, and package dimensions. Verify that alternative parts meet the same 5% tolerance and dynamic impedance specifications for direct substitution.