1N5369/TR8

Overview

The Microchip Technology 1N5369/TR8 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333-5388B series, manufactured by Microsemi. It provides voltage regulation at a nominal Zener voltage of 51 V with a ±2% tolerance, indicated by the 'C' 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 maximum dynamic impedance of 27 Ohms and a maximum reverse current of 0.5 µA.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for through-hole applications
• Withstands high surge stresses and exhibits minimal changes in voltage versus current
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B requiring no dry pack

Applications

• Voltage regulation circuits requiring high power dissipation
• High maximum DC current applications with adequate heat sinking
• Surge stress protection in electronic systems

Procurement Notes

Verify the component origin as this part originates from the Microsemi Scottsdale Division, now part of Microchip Technology. Confirm that the TR8 suffix corresponds to the Tape & Reel packaging option per EIA-296 standards. Ensure the specific C suffix is selected to guarantee the required ±2% voltage tolerance for precision regulation requirements.

Selection Notes

Select this component when a 5-watt power rating and a 51 V regulation point are necessary. The T-18 package offers low thermal resistance for high current operation. Consider the ±2% tolerance if tighter voltage accuracy is needed compared to standard B or A suffix variants. Verify thermal management capabilities for steady-state power dissipation at elevated ambient temperatures.

Part Context

This device belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series covers a wide voltage selection from 3.3 V to 200 V. The 1N5369 variant specifically targets the mid-range voltage spectrum within this high-power family, utilizing plastic encapsulation meeting UL94V-0 standards.

Replacement Considerations

Surface mount equivalents are available in the SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B series. RoHS compliant versions can be identified by adding the e3 suffix to the part number.