1N5235B

Single Zener Diodes Overview

The Microchip Technology 1N5235B is a single Zener diode housed in a DO-7 glass axial-lead package. It provides a nominal Zener voltage of 6.8 V with a maximum reverse leakage current of 3 µA and a Zener impedance of 5 Ohms at a test current of 20 mA. The device supports a power dissipation of 500 mW, operates within a temperature range of -65°C to +200°C, and features a forward voltage of 1.1 V.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features minimal capacitance for high-frequency applications
• Inherently radiation hard per MicroNote 050
• Non-sensitive to electrostatic discharge (ESD)

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• General-purpose voltage regulation

Single Zener Diodes Procurement Notes

Verify the manufacturer designation on the component body, as this series was originally produced by Microsemi. Confirm that the specific ordering suffix matches the required tolerance level and compliance standards. Ensure the package type corresponds to the DO-7 glass axial-lead configuration specified in the datasheet.

Single Zener Diodes Selection Notes

Select this component when a precise 6.8 V reference is required in a through-hole design. Consider the 5% tolerance standard for general applications. Evaluate the thermal derating requirements if the ambient temperature exceeds 50°C or if the device is mounted directly on a printed circuit board without adequate copper pads.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5 W Zener Voltage Regulators. The series offers a wide selection of voltages from 2.4 V to 200 V in the standard DO-35 glass axial-lead package. Variations include different tolerance suffixes and military screening prefixes.

Single Zener Diodes Replacement Considerations

Equivalent parts within the same series include 1N5234B and 1N5236B. Surface mount equivalents are available in the MLL5221 to MLL5281B MELF style packages. Verify compatibility regarding lead length and mounting orientation before substitution.

Single Zener Diodes FAQ

What is the maximum operating temperature for the 1N5235B?

The maximum operating and storage temperature for the 1N5235B is +200°C.

How is the polarity indicated on the 1N5235B?

The cathode is indicated by a band on the glass body. For Zener regulation, the banded end must be positive with respect to the opposite end.