1N5229B_T50R

Single Zener Diodes Overview

The onsemi 1N5229B_T50R is a single-channel Zener diode designed for voltage regulation and reference applications. It features a nominal Zener voltage of 4.3 V with a tight tolerance of 5%. The device operates in the DO-35-2 through-hole package, supporting a power dissipation of 500 mW. Key electrical characteristics include a maximum reverse leakage current of 15 µA and a Zener impedance of 24 Ohms at a test current of 20 mA. It withstands operating temperatures from -65 °C to +200 °C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with a nominal 4.3 V output.
• Features low leakage current for efficient standby operation.
• Capable of high-temperature performance up to 200 °C.

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Single Zener Diodes Procurement Notes

Verify the specific suffix _T50R against official manufacturer documentation to confirm packaging details such as reel specifications or cut tape quantities. Ensure the component meets RoHS requirements if applicable to your assembly process. Cross-reference the part number with the latest datasheet to confirm availability status and any potential obsolescence notices before finalizing procurement plans.

Single Zener Diodes Selection Notes

Select this component when a precise 4.3 V reference is required in a through-hole configuration. The 5% tolerance suits general-purpose regulation where tighter precision is not critical. Consider the 500 mW power rating for thermal management in compact designs. Verify that the 24 Ohm impedance aligns with the dynamic load requirements of the target circuit.

Single Zener Diodes Part Context

This component belongs to the standard 1N52xx series of Zener diodes manufactured by onsemi. It utilizes the legacy DO-35 glass axial leaded package, widely used in industrial and consumer electronics. The series offers various voltage options, with the 1N5229B specifically targeting the 4.3 V segment for reliable voltage clamping and reference tasks.

Single Zener Diodes Replacement Considerations

Compatible substitutes include the MMSZ5229BT1G (SOD-123 surface mount) and MMBZ5229B (SOT-23 surface mount) from onsemi, which share the same 4.3 V specification but differ in package type. For direct through-hole replacements, verify equivalent parts from other manufacturers offering DO-35 packages with matching 4.3 V and 500 mW ratings.