1N5335B

Single Zener Diodes Overview

The Microsemi Corporation 1N5335B is a silicon unidirectional Zener diode with a nominal voltage of 3.9 V and a maximum power dissipation of 5.0 watts at 25°C. It features a ±5% tolerance, a test current of 320 mA, and a maximum dynamic impedance of 2.0 ohms. The device operates within a temperature range of -65°C to +150°C and utilizes an axial-lead T-18 plastic package.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and exhibits minimal voltage change versus current
• Features flexible axial-lead mounting terminals for versatile installation
• Moisture classification Level 1 requiring no dry pack storage

Single Zener Diodes Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in measurement systems

Single Zener Diodes Procurement Notes

Verify the specific suffix letter on the part number to confirm the exact voltage tolerance required for the application. Confirm that the procurement source provides JEDEC registered devices from Microsemi or authorized distributors. Ensure the component meets the necessary environmental standards if used in regulated industries.

Single Zener Diodes Selection Notes

Select this component when a 3.9 V reference with 5 W power handling capability is needed. Consider the thermal resistance characteristics and ensure adequate heat sinking is available for continuous operation near maximum ratings. Verify lead length requirements against the specified thermal resistance values.

Single Zener Diodes Part Context

This component belongs to the 1N5333B through 1N5388B series of 5-watt Zener diodes. The series covers a wide voltage selection from 3.3 V to 200 V. Different suffix letters identify specific voltage tolerances, allowing designers to choose precise regulation levels within the same physical package family.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as SMBJ5335B or SMBG5335B. Other manufacturers may offer generic 5W Zener diodes with similar specifications, but direct pin-compatible replacements should be verified against the electrical characteristics table.