1N5238B

Single Zener Diodes Overview

The SMC Diode Solutions 1N5238B is a silicon unidirectional Zener diode housed in the DO-35 axial through-hole package. It features a nominal Zener voltage of 8.7 V with a tolerance of ±5% and a maximum power dissipation of 500 mW. The device operates within a junction temperature range of -65°C to +175°C and exhibits a maximum dynamic impedance of 8 Ohms.

Single Zener Diodes Feature Summary

• Hermetically sealed glass compression bonded construction for corrosion resistance
• High temperature soldering capability at 260°C for 10 seconds at terminals
• Wide Zener voltage range availability across the series

Single Zener Diodes Applications

• Voltage regulation circuits
• Reference voltage sources
• General purpose circuit protection

Single Zener Diodes Procurement Notes

Verify the manufacturer designation, as Microchip Technology produces the equivalent 1N5238/TR variant while Tak Cheong manufactures the TC1N5238B. Confirm RoHS compliance status and specific tolerance requirements against datasheet specifications before procurement.

Single Zener Diodes Selection Notes

Select this component for applications requiring an 8.7 V reference with ±5% precision in a standard DO-35 package. Ensure the design accommodates the 500 mW power dissipation limit and verify compatibility with high-temperature soldering processes up to 260°C.

Single Zener Diodes Part Context

This part belongs to the 1N52xx series of 500 mW Zener diodes manufactured by SMC Diode Solutions (Tak Cheong). The series covers a wide voltage range from 2.4 V to 56 V, providing standardized options for various voltage regulation needs in through-hole designs.

Single Zener Diodes Replacement Considerations

The Microchip Technology 1N5238B is listed as a parameter-equivalent substitute.