BZX85C12

Single Zener Diodes Overview

The BZX85C12 is a silicon unidirectional voltage regulator diode manufactured by Fairchild Semiconductor. It features a nominal Zener voltage of 12 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 1.3 W and operates within a junction temperature range of -65 °C to +200 °C. It utilizes the DO-41 axial leaded glass package, providing isolation between the component and the circuit board.

Single Zener Diodes Feature Summary

• Utilizes a passivated silicon planar chip structure for enhanced stability and reliability in harsh environments.
• Encapsulated in a hermetically sealed glass DO-41 package designed for industrial, military, and space applications.
• Features a single unidirectional configuration optimized for voltage regulation functions.

Single Zener Diodes Applications

• Industrial voltage regulation circuits
• Military electronic systems requiring high reliability
• Space application power management

Single Zener Diodes Procurement Notes

Verify that the specific procurement lot matches the original Fairchild Semiconductor manufacturing specifications. Confirm the package designation is DO-41 and the tolerance class corresponds to the 'C' suffix. Ensure compliance with relevant environmental standards such as RoHS and lead-free requirements before integration into final assemblies.

Single Zener Diodes Selection Notes

Select this component when a 1.3 W axial Zener diode with 5% voltage tolerance is required. The DO-41 glass package offers superior thermal performance compared to plastic alternatives. Consider the maximum junction temperature rating of 200 °C for high-temperature operational environments where standard silicon limits may be exceeded.

Single Zener Diodes Part Context

This part belongs to the BZX85C series of low-power voltage regulator diodes. The series covers a wide range of nominal voltages from 2.7 V to 51 V, all sharing the same 1.3 W power dissipation rating and DO-41 package style. The 'C' designation specifically indicates a ±5% voltage tolerance band across the entire product line.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering BZX85C12 equivalents in the DO-41 package. Verify that substitute parts maintain the 1.3 W power rating and 12 V nominal voltage. Ensure the replacement supplier provides documentation confirming the use of silicon planar technology and glass encapsulation for equivalent reliability.