1N5245B

Single Zener Diodes Overview

The Microchip Technology 1N5245B is a silicon Zener diode with a nominal breakdown voltage of 15 V and a tolerance of ±5%. It operates in the DO-35 (DO-204AH) glass axial-lead package. The device provides a maximum power dissipation of 0.5 W at 25°C, with a steady-state rating of 0.48 W when mounted on an FR4 printed circuit board. Electrical characteristics include a test current of 8.5 mA, a maximum reverse leakage current of 10 µA at 10 V, and a maximum Zener impedance of 10 Ω.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for through-hole integration
• Inherently radiation hard per MicroNote 050 specifications
• Non-sensitive to electrostatic discharge (ESD) as verified by MIL-STD-750 Method 1020

Single Zener Diodes Applications

• Voltage regulation circuits requiring precise 15 V reference levels
• Overvoltage protection stages in electronic systems
• Clamping applications within signal processing paths

Single Zener Diodes Procurement Notes

Verify that the component matches the specific JEDEC registered type number 1N5245B. Confirm the suffix 'B' indicates the required ±5% voltage tolerance. Ensure the package corresponds to the hermetically sealed glass DO-35 configuration. Check for any prefix identifiers if military screening levels are required for the application environment.

Single Zener Diodes Selection Notes

Select this component when a standard 15 V Zener reference is needed with tight ±5% tolerance. Consider the 0.5 W power dissipation limit and verify thermal management requirements based on the specified derating curve. Evaluate the low capacitance characteristics if high-frequency performance is critical for the circuit design.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5 watt Zener Voltage Regulators manufactured by Microsemi (now Microchip Technology). The series covers a wide selection of voltages from 2.4 V to 200 V. These devices utilize a glass axial-leaded DO-35 package and are available in various standard tolerances identified by suffix letters.

Single Zener Diodes Replacement Considerations

Equivalent parts within the same series include 1N5244B and 1N5246B. Surface mount equivalents are available in the MLL5221 to MLL5281B series using the DO-213AA MELF style package.