1N5374C/TR8

Overview

The Microsemi Corporation 1N5374C/TR8 is a silicon 5.0-watt Zener diode in the JEDEC registered 1N5333-5388B series, featuring an axial T-18 package and TR8 tape-and-reel packaging. It provides a nominal Zener voltage of 75V with a tight ±2% tolerance. The device operates within a temperature range of -65°C to +150°C and includes a maximum reverse current of 500µA at 54V.

Feature Summary

• Provides precise voltage regulation with tight ±2% tolerance for critical circuit stability
• Engineered for high surge stress withstand capability and robust thermal performance
• Features flexible axial-lead mounting terminals suitable for through-hole applications

Applications

• Voltage regulation in power supply circuits
• Overvoltage protection systems
• Reference voltage generation in electronic instrumentation

Procurement Notes

Verify that the ordering suffix matches the required packaging configuration, as the TR8 designation indicates specific reel quantities. Confirm compliance requirements against the datasheet, noting that standard versions may not be RoHS compliant unless specified by the e3 suffix. Ensure the component meets the necessary military screening levels if applicable to your design specifications.

Selection Notes

Select this component when a 75V reference requires tighter than standard manufacturing tolerances. The C suffix ensures a ±2% deviation, distinguishing it from B (±5%) or A (±10%) variants. Consider the 5W power dissipation rating and thermal resistance characteristics for adequate heat sinking in steady-state operations.

Part Context

This part belongs to the 1N5333B through 1N5388B series of 5-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers a wide voltage selection from 3.3V to 200V, utilizing plastic encapsulated bodies with void-free transfer molding. These devices are designed for high DC currents with low thermal resistance.

Replacement Considerations

Cross-reference with other manufacturers offering 75V 5W Zener diodes in the T-18 axial package. Verify that alternative parts meet the ±2% tolerance requirement and match the electrical characteristics, specifically dynamic impedance and reverse leakage current, to ensure functional compatibility.