1N2810A

Overview

The Microchip Technology 1N2810A is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 12 V with a tolerance of ±10%. The device supports a maximum power dissipation of 50 W and operates in a TO-204AD (TO-3) through-hole package. Key electrical parameters include a maximum Zener impedance of 1 Ohm and a reverse leakage current of 10 µA at 9.1 V. The component is rated for an operating temperature range of -65°C to 175°C.

Feature Summary

• Provides stable voltage regulation with high power handling capability
• Robust construction suitable for through-hole mounting
• Wide thermal operating range for demanding environments

Applications

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

Procurement Notes

Verify the specific manufacturer source, as historical data indicates production by Microsemi Corporation prior to acquisition by Microchip Technology. Confirm RoHS compliance status, as some listings indicate non-compliance. Ensure the package type matches the required TO-204AD footprint. Check for any recent Product Change Notifications regarding assembly sites or labeling changes before finalizing procurement orders.

Selection Notes

Select this component when a 50 W Zener diode with a 12 V nominal breakdown voltage is required. The low impedance value of 1 Ohm makes it suitable for applications requiring tight voltage regulation under varying load conditions. Consider the large TO-3 package size and thermal management requirements associated with high-power dissipation in your circuit design.

Part Context

The 1N2810A belongs to the standard 1N28xx series of high-power Zener diodes. This series is widely used in legacy and industrial electronics where robust voltage clamping is necessary. The component represents a transition from older Microsemi manufacturing to current Microchip Technology production lines, maintaining consistent electrical specifications for compatibility.

Replacement Considerations

Direct substitutes include other 50 W, 12 V Zener diodes in TO-3 packages such as the 1N2811A, though voltage differences must be verified against circuit requirements. Cross-reference datasheets for impedance and leakage current tolerances to ensure functional equivalence in sensitive regulation applications.