1N5369B

Overview

The Microsemi Corporation 1N5369B is a JEDEC registered silicon Zener diode with a nominal voltage of 51V and a maximum power dissipation of 5.0 watts at 25°C. It features a T-18 axial-lead plastic package and offers a standard voltage tolerance of ±5%. The device operates within a temperature range of -65°C to +150°C, has a maximum dynamic impedance of 27 Ω, and withstands high surge stresses.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for versatile integration
• Withstands high surge stresses while maintaining minimal changes in voltage versus current
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 flammability ratings

Applications

• Voltage regulation circuits requiring stable DC outputs
• Overvoltage protection for sensitive electronic components
• Power supply input transient suppression

Procurement Notes

Verify the specific manufacturer source when ordering, as multiple vendors produce this JEDEC registered part number. Confirm compliance requirements such as RoHS status (suffix e3) or military screening prefixes if applicable. Ensure the supplier provides official datasheets matching the exact suffix and packaging configuration to guarantee electrical parameter accuracy.

Selection Notes

Select the 1N5369B for applications requiring a 51V reference point with 5W power handling capabilities. Consider the ±5% tolerance for general regulation tasks. Evaluate thermal management needs, as steady-state power dissipation decreases significantly above ambient temperatures. Verify lead length requirements for optimal heat sinking performance.

Part Context

This component belongs to the 1N5333B through 1N5388B series of 5-watt silicon Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers a wide voltage selection from 3.3V to 200V, utilizing standardized JEDEC registration for interchangeability. The B suffix specifically denotes the ±5% voltage tolerance variant within this family.

Replacement Considerations

Surface mount equivalents are available in SMBJ5333–SMBJ5388B or SMBG5333B–SMBG5388B packages. Other manufacturers produce identical JEDEC registered parts under the same 1N5369B designation.