1N5272BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N5272BUR-1 is a surface mount Zener voltage regulator with a nominal breakdown voltage of 110 V and a 5% tolerance. It operates within a power dissipation limit of 0.5 W and features a metallurgically bonded glass DO-213AA (MELF) package. The device maintains a maximum reverse leakage current of 2600 µA at the rated voltage, with a dynamic impedance of 750 Ohms at the test current of 1.1 mA. It supports junction temperatures from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed surface mount configuration with internal metallurgical bond
• Surface mount equivalent to JEDEC registered axial-leaded series
• Inherently radiation hard per Microsemi specifications
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• Spacecraft avionics data acquisition systems
• Radiation-hardened electronic circuits

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements for your application. The standard part number indicates commercial grade availability. RoHS compliance requires an additional e3 suffix on commercial versions only. Confirm if MIL-PRF-19500 up-screening is required by checking the full nomenclature against the manufacturer's ordering guide.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is needed as a direct replacement for the 1N5272 axial leaded variant. Ensure the circuit design accommodates the 0.5 W steady-state power dissipation limit. Verify that the 110 V breakdown voltage aligns with the target regulation point and that the 750 Ohm dynamic impedance meets the signal integrity requirements.

Single Zener Diodes Part Context

This device belongs to the 1N5221BUR-1 through 1N5281BUR-1 series, which provides surface mount equivalents for the popular JEDEC registered 1N5221 to 1N5281 series. The series covers Zener voltages from 2.4 to 200 volts in a metallurgically bonded configuration. These components are designed to meet rigorous environmental standards while offering a compact footprint suitable for dense PCB layouts.

Single Zener Diodes Replacement Considerations

Direct surface mount replacements include other parts within the 1N5221BUR-1 thru 1N5281BUR-1 series. For axial leaded equivalents, consult the 1N5221B-1 thru 1N5281B-1 listings.