1N5251B_T50A

Single Zener Diodes Overview

The onsemi 1N5251B_T50A is a single silicon Zener diode designed for voltage regulation and reference applications. It features a nominal Zener voltage of 22 V with a tolerance of 5%. The device operates in the DO-35 axial leaded package, supporting through-hole mounting. It dissipates up to 500 mW of power at ambient temperature. Key electrical characteristics include a maximum reverse leakage current of 100 nA and a Zener impedance of 29 Ohms at a test current of 5.6 mA. The component functions reliably within an operating temperature range from -65 °C to +200 °C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using a single unidirectional Zener junction
• Utilizes glass-encapsulated DO-35 axial leaded construction for robust mechanical stability
• Maintains low reverse leakage current to minimize standby power loss
• Supports high thermal endurance suitable for demanding industrial environments

Single Zener Diodes Applications

• Voltage reference circuits requiring precise DC levels
• Overvoltage protection stages in signal conditioning paths
• Clamping applications in power supply output stages

Single Zener Diodes Procurement Notes

Verify the specific suffix T50A against official onsemi documentation to confirm tape-and-reel packaging specifications. Ensure the ordered part matches the required DO-35 package dimensions and lead form. Cross-reference the manufacturer's datasheet for any updates regarding RoHS compliance status or material declarations prior to final procurement approval.

Single Zener Diodes Selection Notes

Select this component when a standard 22 V regulation point is required in through-hole designs. Consider the 5% voltage tolerance and 29 Ohm impedance for circuit accuracy requirements. Evaluate the 500 mW power dissipation limit against expected thermal conditions. Verify that the DO-35 package fits the available PCB real estate and assembly constraints.

Single Zener Diodes Part Context

This part belongs to the industry-standard 1N52xx series of 0.5 W Zener diodes. The 'B' suffix typically denotes a 5% voltage tolerance band. The 'T50A' suffix indicates specific reel packaging configuration for automated assembly processes. This series offers a wide selection of voltage values for general-purpose regulation tasks across various electronic equipment categories.

Single Zener Diodes Replacement Considerations

Compatible substitutes include LLZ5251B variants from other manufacturers offering identical 22 V, 500 mW, and DO-35 specifications. Ensure replacement parts maintain the same 5% tolerance and thermal rating. Verify pin compatibility and package dimensions before integrating alternative sources into existing designs.