1N5229B-1E3/TR

Single Zener Diodes Overview

The 1N5229B-1E3/TR is a single Zener diode manufactured by Microchip Technology, designed for voltage regulation and protection applications. It features a nominal Zener voltage of 4.3 V with a tolerance of ±5%. The device operates within a power dissipation range of 0.5 W (500 mW) and supports a maximum reverse leakage current of 5 µA. It exhibits a Zener impedance of 22 Ω and functions across an extended temperature range from -65 °C to +175 °C. The component utilizes a DO-204AH (DO-35) through-hole package and complies with RoHS standards.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation at a nominal 4.3 V output level
• Capable of handling up to 500 mW power dissipation in a compact axial leaded package
• Engineered for reliable operation across extreme industrial temperature ranges

Single Zener Diodes Applications

• Power supply circuit voltage regulation
• Voltage reference generation in electronic systems
• Overvoltage protection circuits

Single Zener Diodes Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing. Confirm the manufacturer designation as Microchip Technology to distinguish from other vendors using similar part numbers. Ensure the DO-35 package style matches the target PCB footprint requirements before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a precise 4.3 V reference is required with moderate power handling capabilities. The wide operating temperature range makes it suitable for harsh environments. Consider the axial leaded form factor for through-hole assembly processes where surface mount alternatives are not feasible.

Single Zener Diodes Part Context

This part belongs to the 1N522x series of 0.5 W Zener diodes produced by Microchip Technology. The series offers various voltage options ranging from 2.4 V to higher values, all sharing similar physical dimensions and thermal characteristics. The 'e3' suffix denotes lead-free composition compliant with environmental directives.

Single Zener Diodes Replacement Considerations

Cross-reference with Vishay 1N5229C-TR or Diodes Incorporated 1N5229B-A for equivalent electrical specifications. Verify pinout compatibility and package dimensions before substituting to ensure mechanical fit.