1N5368B/TR8

Overview

The Microchip Technology 1N5368B/TR8 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333B-1N5388B series. It provides voltage regulation at a nominal Zener voltage of 47 V with a ±5% tolerance, indicated by the 'B' suffix. The device operates within a temperature range of -65°C to +150°C and features a T-18 axial lead package. Electrical characteristics include a test current of 25 mA, a maximum dynamic impedance of 25 ohms, and a maximum reverse current of 0.5 µA.

Feature Summary

• Provides stable voltage regulation across broad operating current and temperature ranges
• Withstands high surge stresses and exhibits minimal voltage change versus current
• Features flexible axial-lead mounting terminals for secure installation
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

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

Procurement Notes

Verify the specific manufacturer origin, as this part number was originally produced by Microsemi before its acquisition by Microchip Technology. Confirm that the RoHS compliant version (e3 suffix) or standard tin-lead terminal plating matches your assembly requirements. Ensure the TR8 tape and reel packaging aligns with your automated placement equipment specifications.

Selection Notes

Select this component when a 47 V reference point is required with moderate precision. The B suffix ensures a tighter ±5% tolerance compared to standard A suffix devices. Consider the 5 W power dissipation capability and thermal resistance characteristics for heat sinking requirements. Verify compatibility with existing circuit designs requiring low leakage current and robust surge handling capabilities.

Part Context

This component belongs to the 1N5333B through 1N5388B series of 5-watt silicon Zener diodes. The series offers a wide selection of voltages ranging from 3.3 V to 200 V. Different suffix letters denote varying voltage tolerances, allowing designers to choose between standard and tight tolerance options based on application needs.

Replacement Considerations

Equivalent parts include other 5W Zener diodes with 47V nominal voltage and ±5% tolerance in T-18 packages. Surface mount equivalents are available in SMBJ5368B or SMBG5368B formats. Verify electrical parameters and physical dimensions match before substitution.