1N5371E3/TR12

Overview

The Microchip Technology 1N5371E3/TR12 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333-5388B series, manufactured by the Microsemi Scottsdale Division. It provides voltage regulation at a nominal Zener voltage of 60V with a standard tolerance of ±5%, indicated by the 'B' suffix. The device operates within an ambient temperature range of -65°C to +150°C and features a T-18 axial leaded package. RoHS compliance is achieved through the 'e3' suffix, which specifies annealed matte-tin plating on the terminals.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for versatile installation
• Withstands high surge stresses without damage
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B, requiring no dry pack

Applications

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

Procurement Notes

Verify that the ordering suffix matches the required specifications: 'B' indicates ±5% voltage tolerance, 'e3' confirms RoHS compliance with tin plating, and 'TR12' denotes tape and reel packaging. Confirm the manufacturer origin as Microsemi or its successor entity Microchip Technology. Ensure the component meets the specified thermal resistance and power dissipation requirements for the intended application environment.

Selection Notes

Select this component when a 60V regulation point is required with a 5W power rating. The T-18 package offers low thermal resistance for effective heat sinking. Consider the ±5% tolerance if tighter precision is not critical. Verify that the maximum steady-state power dissipation aligns with the available heat sinking capacity in the design.

Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series covers a wide voltage selection from 3.3V to 200V. The specific model utilizes a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards. It is designed for applications requiring robust performance under high DC currents and surge conditions.

Replacement Considerations

Equivalent parts include other 5W Zener diodes with a 60V nominal voltage and ±5% tolerance in a T-18 package. Cross-reference with the SMBJ5371B surface mount equivalent if space constraints require a different form factor. Verify that any substitute meets the same thermal and electrical ratings.