1N5281B BK

Single Zener Diodes Overview

The Central Semiconductor Corp 1N5281B BK is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 200 V with a ±5% tolerance, indicated by the 'B' suffix. The device operates within a power dissipation rating of 500 mW at an ambient temperature of 75°C and supports junction temperatures ranging from -65°C to +200°C. Electrical characteristics include a maximum reverse current of 0.1 µA at 190 V and a maximum temperature coefficient of +0.110 %/°C. The component utilizes a DO-35 axial leaded glass package.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across industrial and commercial environments
• Features high reliability suitable for demanding electronic circuits
• Utilizes a metallurgically bonded glass construction for durability

Single Zener Diodes Applications

• Industrial equipment voltage regulation
• Commercial electronics power supplies
• Computer system circuit protection

Single Zener Diodes Procurement Notes

Verify current availability status as this product line may be subject to discontinuation notices. Confirm specific ordering suffixes required for plating options, such as Tin/Lead or Lead-Free finishes, directly with the manufacturer. Request technical data sheets and compliance documentation prior to finalizing procurement decisions to ensure alignment with project specifications.

Single Zener Diodes Selection Notes

Select this component when a precise 200 V reference is required in a standard through-hole configuration. Ensure the design accommodates the specified 500 mW power dissipation limit under expected operating conditions. Verify that the DO-35 package dimensions fit the intended PCB layout constraints.

Single Zener Diodes Part Context

This part belongs to the 1N5221B through 1N5278B series of 500 mW silicon Zener diodes manufactured by Central Semiconductor Corp. The series covers a wide voltage range from 2.4 V to 170 V (and up to 200 V for specific variants like the 1N5281B) with standardized tolerances. These components are widely recognized for their consistent performance in general-purpose voltage regulation tasks.

Single Zener Diodes Replacement Considerations

Official replacement part numbers are not available for the 1N5281B BK variant. The manufacturer indicates no direct substitute within their portfolio. Contact engineering support for potential alternate source recommendations if this component is discontinued.