1N5248B-T

Single Zener Diodes Overview

The 1N5248B-T is a silicon planar power Zener diode from the Vishay 1N5221 to 1N5267 series, housed in a DO-35 (DO-204AH) glass axial lead package. It provides an 18 V nominal Zener voltage with a ±5% tolerance and operates at a test current of 7 mA. The device dissipates up to 500 mW of power, maintains a maximum dynamic resistance of 21 Ω, and exhibits a reverse leakage current of 100 nA at 14 V. It supports junction temperatures up to 175 °C.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for stable voltage regulation
• Provides standard ±5% Zener voltage tolerance
• Features low thermal resistance for efficient heat dissipation

Single Zener Diodes Applications

• Voltage stabilization circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify that the ordering code suffix matches the required packaging format. Confirm compliance with RoHS directives and material categorization standards before procurement. Ensure the supplier provides documentation verifying the specific batch characteristics and electrical parameters against the official datasheet specifications.

Single Zener Diodes Selection Notes

Select this component when a precise 18 V reference is required within a through-hole design. Consider the 5% tolerance and 500 mW power rating for thermal management. Evaluate the operating temperature range and dynamic impedance requirements to ensure compatibility with the target circuit's stability needs.

Single Zener Diodes Part Context

This part belongs to the widely used 1N52xxB series of small signal Zener diodes manufactured by Vishay Semiconductors. The series covers a broad voltage range from 2.4 V to 75 V in the DO-35 package. These components are designed for general-purpose voltage regulation and reference applications in electronic circuits.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other manufacturers' 1N5248B variants or equivalent parts within the 1N5221 to 1N5267 series offering identical 18 V ratings and DO-35 packaging.