1N5251/TR

Single Zener Diodes Overview

The Microchip Technology 1N5251/TR is a Zener diode with a nominal voltage of 5.1 V and a power dissipation of 500 mW. It features a 5% tolerance and operates within a temperature range of -65°C to +175°C. The device utilizes a DO-213AA (MLL34) surface-mount package and exhibits a maximum reverse leakage current of 100 nA at the test current of 49 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation in a compact metallurgically bonded glass surface-mount configuration
• Designed for high-temperature reliability with an extended operating range up to 175°C
• Offers precise voltage tolerance suitable for sensitive circuit protection applications

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Over-voltage protection in electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the specific suffix /TR indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status as it may vary by production batch. Ensure the DO-213AA footprint matches the target PCB design. Check for any recent PCN updates regarding assembly sites or material changes before finalizing procurement plans.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 5.1 V reference in a small surface-mount form factor. Consider the 500 mW power rating against expected surge currents. Evaluate the thermal management requirements given the high-temperature capability. Compare impedance characteristics with alternative packages if space constraints allow.

Single Zener Diodes Part Context

This part belongs to the standard Zener diode family from Microchip Technology, offering a surface-mount equivalent to through-hole variants. It is designed for general-purpose voltage regulation and protection tasks where board space is limited. The series provides various voltage options within the same package style.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' 1N5251B equivalents in DO-213AA packages. Verify pinout compatibility and electrical parameters such as impedance and leakage current. Cross-reference with MLL5251B variants for potential sourcing flexibility.