1N5229BTR

Single Zener Diodes Overview

The onsemi 1N5229BTR is a single Zener diode with a nominal voltage of 4.3 V and a maximum power dissipation of 500 mW. It features a 5% voltage tolerance, a test current of 20 mA, and a maximum dynamic impedance of 22 Ω at the test current. The device operates within a temperature range of -65 °C to +200 °C and has a typical voltage temperature coefficient of ±0.055 %/°C. Packaged in an axial lead DO-35 (Case 017AG) format, it is supplied in tape and reel quantities.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using a silicon Zener junction
• Features a hermetically sealed glass axial-lead package for environmental protection
• Designed for high operating temperatures up to +200 °C

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'TR' corresponds to the Tape and Reel shipping configuration as documented in the official datasheet. Confirm the specific device code marking matches the 1N5229B designation. Ensure the procurement specifications align with the absolute maximum ratings and electrical characteristics provided by the manufacturer.

Single Zener Diodes Selection Notes

Select this component when a precise 4.3 V reference is required with tight 5% tolerance. Consider the 500 mW power rating and the thermal derating factor above 50 °C for circuit design. The axial lead package is suitable for through-hole mounting configurations requiring robust mechanical stability.

Single Zener Diodes Part Context

This part belongs to the 1N5221B through 1N5252B series of 0.5 W Zener Voltage Regulators. The series offers a wide selection of voltages from 2.4 V to 24.0 V in standard 5% or 10% tolerances. These devices utilize a glass axial-leaded DO-35 package and are available in both bulk bag and tape and reel packaging options.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering equivalent 4.3 V, 500 mW Zener diodes in the DO-35 package. Verify that alternative parts meet the same 5% tolerance and electrical performance criteria.