1N5248B-TR

Single Zener Diodes Overview

The Vishay 1N5248B-TR is a silicon planar power Zener diode with an 18 V nominal voltage, ±5 % tolerance, and 500 mW power dissipation. It operates in the -65 °C to +175 °C range, housed in a DO-35 (DO-204AH) axial package. Key electrical parameters include a maximum reverse leakage current of 100 nA at 14 V, a dynamic resistance of 21 Ω at 7 mA, and a forward voltage of 1.1 V at 200 mA.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Provides standard ±5 % Zener voltage tolerance
• Supports extended thermal operation up to 175 °C

Single Zener Diodes Applications

• Voltage stabilization circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify the specific ordering code suffix against the manufacturer's official documentation to confirm packaging details. Confirm that the component meets all required environmental compliance standards for your target application before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a precise 18 V reference with moderate tolerance is required. Ensure the circuit design accommodates the specified 500 mW power dissipation limit and verify compatibility with the DO-35 through-hole mounting style.

Single Zener Diodes Part Context

This device belongs to the 1N5221 to 1N5267 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series covers a wide voltage range from 2.4 V to 75 V, providing standardized options for various low-power voltage regulation needs.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering equivalent 18 V, 500 mW Zener diodes in the DO-35 package. Verify matching electrical characteristics such as dynamic resistance and leakage current to ensure functional equivalence.

Single Zener Diodes FAQ

What is the dynamic resistance of the 1N5248B-TR?

The typical dynamic resistance is 21 Ω, measured at a test current of 7 mA.

What is the maximum operating junction temperature?

The maximum junction temperature is rated at 175 °C.