1N4757A BK PBFREE

Overview

The Central Semiconductor Corp 1N4757A BK PBFREE is a silicon Zener diode designed for voltage regulation. It features a nominal Zener voltage of 51 V with a 5% tolerance, operating within a range of 48.45 V to 53.55 V at a test current of 5.0 mA. The device dissipates up to 1.0 W at 50°C and supports a maximum DC current of 25 mA. It utilizes the DO-41 axial through-hole package and operates across a temperature range from -65°C to +200°C.

Feature Summary

• Provides stable voltage regulation using silicon junction technology
• Features a robust glass body encapsulation in an axial leaded package
• Designed for reliable operation across extreme industrial temperature ranges

Applications

• Industrial circuit voltage regulation
• Commercial equipment power supplies
• Entertainment system protection circuits
• Computer application voltage reference

Procurement Notes

Verify component authenticity by matching the full part number against official manufacturer documentation. Confirm RoHS compliance status and ensure the ordering suffix aligns with specific plating requirements. Review datasheet electrical characteristics to validate suitability for the target circuit environment before procurement.

Selection Notes

Select this component based on its 51 V nominal voltage rating and 1.0 W power dissipation capability. Ensure the DO-41 package fits the board layout constraints. Verify that the required operating temperature range falls within the specified -65°C to +200°C limits for the intended application environment.

Part Context

This component belongs to the 1N4728A through 1N4764A series of high-reliability silicon Zener diodes manufactured by Central Semiconductor Corp. The series is engineered for consistent performance in demanding environments, offering precise voltage control and thermal stability suitable for critical electronic systems.

Replacement Considerations

No public confirmed substitute part numbers are available for this component.