1N5247B

Single Zener Diodes Overview

The onsemi 1N5247B is a single silicon Zener diode housed in an axial leaded DO-35 glass package. It provides a nominal voltage regulation of 17 V with a maximum power dissipation of 500 mW at 25°C. The device features a tight voltage tolerance of ±5%, ensuring precise regulation within the 16.15 V to 17.85 V range. Electrical characteristics include a dynamic impedance of 19 Ω and a maximum reverse leakage current of 100 nA. Designed for through-hole mounting, it operates reliably across a wide temperature spectrum from -65°C to +200°C.

Single Zener Diodes Feature Summary

• Planar die construction ensures stable voltage regulation and high reliability under varying thermal conditions.
• Hermetically sealed glass DO-35 package provides excellent isolation and robustness against environmental factors.
• Optimized for automated assembly processes, supporting efficient manufacturing integration.

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection for sensitive electronic components
• General-purpose voltage regulation in low-power systems

Single Zener Diodes Procurement Notes

Verify that the ordered component matches the specific 1N5247B designation to ensure correct 17 V regulation and 5% tolerance. Confirm compliance with RoHS directives if required by your application standards. Check the datasheet for absolute maximum ratings to prevent exceeding power dissipation limits during operation. Ensure proper handling procedures are followed to maintain the integrity of the glass axial-lead package.

Single Zener Diodes Selection Notes

Select this component when a precise 17 V reference is needed with minimal tolerance variation. The DO-35 package suits applications where space allows for axial leads but requires hermetic sealing. Consider the 500 mW power rating and derating requirements above 50°C. Evaluate the low leakage current and dynamic impedance for noise-sensitive or high-precision circuit designs.

Single Zener Diodes Part Context

This part belongs to the 1N5221B–1N5252B series of 0.5 W Zener diodes manufactured by onsemi. The series offers a broad selection of voltages from 2.4 V to 24.0 V in standard 5% and 10% tolerances. These devices utilize planar technology and are packaged in molded glass DO-35 cases, making them suitable for a wide range of commercial and industrial voltage regulation applications.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers' 1N5247B equivalents to verify pinout compatibility and electrical parameter alignment. Ensure substitute parts meet the same DO-35 mechanical dimensions and thermal performance specifications.