1N2810RB

Overview

The 1N2810RB is a silicon Zener diode manufactured by Microchip Technology, designed for general-purpose voltage regulation and reference applications. It features a nominal Zener voltage of 12 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 50 W and exhibits a maximum dynamic impedance of 1 Ohm. Reverse leakage current is specified at 10 μA. It utilizes a TO-3 metal flange mount package, where the case is electrically connected to the anode terminal.

Feature Summary

• Provides stable voltage regulation in high-power applications
• Utilizes a robust metal flange mount construction for thermal management
• Features low dynamic impedance for improved voltage stability

Applications

• High-power voltage reference circuits
• Overvoltage protection systems
• Power supply regulation stages

Procurement Notes

Verify component authenticity through official Microchip channels or authorized distributors. Confirm manufacturing date codes and lot traceability against project requirements. Ensure proper handling procedures are followed due to the TO-3 metal package configuration. Check for any specific environmental compliance documentation required for integration.

Selection Notes

Select this component when a 12 V Zener voltage with 50 W power handling capability is required. The TO-3 package necessitates adequate heatsinking and mounting hardware. Consider the ±5% tolerance and 1 Ohm impedance specifications against circuit precision needs. Evaluate thermal resistance characteristics for the intended operating environment.

Part Context

This part belongs to the standard 1N28xx series of 50 Watt Zener diodes. Originally associated with Microsemi Corporation before its acquisition by Microchip Technology, the product line maintains historical designations. The 1N2810RB variant specifically denotes the 12 V version within this high-power discrete semiconductor family.

Replacement Considerations

Cross-reference with other manufacturers offering 1N2810 equivalents in TO-3 packages. Verify that substitute parts meet the 50 W power rating and 12 V Zener voltage specifications. Ensure pinout compatibility, noting the case-to-anode connection common in this package style.