1N5250B

Single Zener Diodes Overview

The Fairchild Semiconductor 1N5250B is a single Zener diode housed in the DO-35 axial through-hole package. It provides a nominal Zener voltage of 20 V with a tolerance of ±5%. The device dissipates up to 500 mW and operates within a junction temperature range of -65°C to +200°C. Key electrical characteristics include a maximum reverse leakage current of 100 nA, a Zener impedance of 25 Ohms at a test current of 6.2 mA, and a forward voltage of 1.1 V.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation via Zener breakdown mechanism
• Features low reverse leakage current for efficient operation
• Constructed with isolated glass encapsulation

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• General-purpose rectification

Single Zener Diodes Procurement Notes

Verify the manufacturer designation as Fairchild Semiconductor against the specific datasheet revision. Confirm the JEDEC-95 package code corresponds to DO-35. Ensure the component meets RoHS compliance requirements if applicable to the assembly process. Cross-reference the part number with official Microchip Technology documentation, as they are the current owner of the Fairchild semiconductor portfolio.

Single Zener Diodes Selection Notes

Select this component when a 20 V regulation point is required in a through-hole design. The DO-35 package suits standard PCB mounting. Consider the 25 Ohm impedance for dynamic load variations. Verify that the 500 mW power rating accommodates the expected thermal environment without exceeding the +200°C maximum junction temperature limit.

Single Zener Diodes Part Context

This component belongs to the 1N52xx series of Zener diodes, widely used for basic voltage regulation tasks. The 1N5250B specifically targets the 20 V segment of this standardized lineup. It utilizes silicon technology within a hermetically sealed glass body, ensuring reliability across industrial temperature ranges.

Single Zener Diodes Replacement Considerations

Equivalent parts from other manufacturers must match the 20 V Zener voltage, 500 mW power dissipation, and DO-35 package dimensions. Verify that substitute components maintain similar Zener impedance and leakage current specifications to ensure circuit compatibility.