1N5248BUR-1E3

Single Zener Diodes Overview

The Microchip Technology 1N5248BUR-1E3 is a surface mount Zener voltage regulator with a nominal breakdown voltage of 18 V and a maximum power dissipation of 0.5 W. It utilizes a hermetically sealed DO-213AA glass package featuring an internal metallurgical bond. The device exhibits a test current of 7.0 mA, a maximum dynamic impedance of 600 Ohms at the knee current, and a reverse leakage current of 0.1 µA. It operates within a junction temperature range of -65 °C to +175 °C.

Single Zener Diodes Feature Summary

• Hermetically sealed metallurgically bonded glass surface mount package
• Inherently radiation hard design
• Non-sensitive to electrostatic discharge
• Minimal capacitance characteristics

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• Radiation-hardened electronic systems
• High-reliability aerospace and defense circuits

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'e3' confirms RoHS compliance for commercial grade versions only. Confirm the specific tolerance designation matches the required circuit precision. Ensure the DO-213AA footprint aligns with the PCB layout guidelines provided in the datasheet. Validate thermal derating requirements against the intended ambient operating conditions.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for high-reliability applications. The 18 V rating suits mid-range voltage regulation tasks. Consider the 0.5 W power dissipation limit and the specific dynamic impedance values for noise-sensitive designs. Verify compatibility with MIL-PRF-19500 screening if military-grade performance is mandated.

Single Zener Diodes Part Context

This part belongs to the 1N5221BUR-1 through 1N5281BUR-1 series of 0.5 watt Zener voltage regulators. It serves as the surface mount equivalent to the JEDEC registered axial-leaded 1N5221 to 1N5281 series. The series provides a wide selection of voltages from 2.4 to 200 volts in a compact metallurgically bonded configuration.

Single Zener Diodes Replacement Considerations

The 1N5248B-1 is the axial-leaded equivalent in the same series. Other series members like 1N5247BUR-1 or 1N5249BUR-1 offer adjacent voltage ratings.