1N5242BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N5242BUR-1/TR is a surface mount Zener diode in the DO-213AA package. It provides a nominal voltage of 12 V with a tolerance of ±5%. The device dissipates up to 500 mW and operates within a junction temperature range of -65°C to +175°C. Electrical characteristics include a maximum dynamic impedance of 30 Ohms at a test current of 20 mA, a reverse leakage current of 1 µA at 9.1 V, and a forward voltage of 1.1 V at 200 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed glass surface mount package with internal metallurgical bond.
• Surface mount equivalent to JEDEC registered 1N5221 through 1N5281 series.
• Inherently radiation hard per Microsemi documentation.

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges.
• ESD protection applications requiring minimal capacitance.

Single Zener Diodes Procurement Notes

Verify the specific part number against official datasheets to confirm the presence of the TR suffix for tape and reel packaging. Ensure compatibility with RoHS requirements if applicable, as compliance may vary by manufacturing grade. Confirm that the supplier source aligns with authorized distribution channels to guarantee component authenticity and traceability.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for space-constrained designs. The 12 V rating and ±5% tolerance suit precision reference circuits. Consider the low capacitance characteristic for high-speed signal lines. Verify thermal derating curves against the intended ambient temperature and board layout constraints.

Single Zener Diodes Part Context

This device belongs to the 1N5221BUR-1 through 1N5281BUR-1 series, offering metallurgically bonded glass surface mount equivalents to traditional axial-leaded components. The series spans voltages from 2.4 V to 200 V, providing designers with extensive options for various regulation needs while maintaining reliability standards associated with military-grade screening options.

Single Zener Diodes Replacement Considerations

Direct replacements include other manufacturers' DO-213AA (SOD80/MLL34) packages with identical 12 V, 500 mW specifications. Cross-reference electrical parameters such as impedance and leakage current to ensure circuit performance remains unaffected during substitution.