1N5245BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N5245BUR-1 is a surface mount Zener voltage regulator housed in a DO-213AA package. It provides a nominal Zener voltage of 15 V with a tolerance of ±5%. The device operates at a test current of 8.5 mA and dissipates up to 0.5 W. Key electrical parameters include a maximum reverse leakage current of 0.1 µA, a dynamic impedance of 16 Ohms, and a temperature coefficient of +0.082 %/°C. It functions within a junction temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed metallurgically bonded glass surface mount package
• Surface mount equivalent of JEDEC registered 1N5221 series
• Inherently radiation hard design

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• ESD protection applications
• Radiation-hardened circuit designs

Single Zener Diodes Procurement Notes

Verify the specific part number against official datasheets to confirm the manufacturer origin, as historical records indicate Microsemi production for this series. Ensure compatibility with MIL-PRF-19500 screening requirements if specified for your application. Confirm RoHS compliance status based on the commercial grade availability noted in documentation.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for high-reliability environments. The 1N5245BUR-1 offers a 15 V breakdown suitable for precision regulation. Consider the low capacitance characteristics for signal integrity. Verify thermal derating curves against your PCB layout constraints to ensure safe operation within the specified power dissipation limits.

Single Zener Diodes Part Context

This component belongs to the 1N5221BUR-1 through 1N5281BUR-1 series, which serves as the surface mount counterpart to the traditional axial-leaded 1N5221 to 1N5281 series. The series covers a wide voltage range from 2.4 V to 200 V. These devices are characterized by their internal metallurgical bond and availability in various tolerance grades including 5% and 10%.

Single Zener Diodes Replacement Considerations

The 1N5245B/TR is an alternative version available in the same family, though it utilizes a through-hole DO-204AH package rather than the surface mount DO-213AA form factor. Direct pin-to-pin replacement requires verifying the mechanical footprint compatibility.