1N5351AE3/TR12

Overview

The Microchip Technology 1N5351AE3/TR12 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333-5388B series, designed for voltage regulation across a broad operating current and temperature range. It features a nominal Zener voltage of 14 V with a standard tolerance of ±10%, indicated by the 'A' suffix. The device operates within a temperature range of -65°C to +150°C and includes a maximum reverse leakage current of 75 µA at 10.1 V. Packaged in an axial T-18 case with RoHS-compliant e3 plating, it is supplied in tape and reel format.

Feature Summary

• Provides stable voltage regulation over a wide operating current and temperature range
• Withstands high surge stresses and exhibits minimal voltage change versus current
• Features flexible axial-lead mounting terminals suitable for through-hole applications

Applications

• Voltage regulation circuits requiring robust thermal performance
• Power supply reference designs utilizing high-power dissipation components
• Industrial equipment operating under extreme environmental conditions

Procurement Notes

Verify that the ordering suffix matches the required specifications: 'e3' indicates RoHS compliance, while 'TR12' specifies the tape and reel packaging configuration. Confirm the manufacturer origin, as this component originates from the Microsemi Scottsdale Division now part of Microchip Technology. Ensure the procurement documentation aligns with the specific tolerance and power rating requirements for your design.

Selection Notes

Select this component when a 5-watt power dissipation capability is necessary for high-current regulation tasks. The 14 V nominal voltage with ±10% tolerance suits applications where precise tight tolerances are not critical but high power handling is required. Consider the T-18 package dimensions and lead length constraints during PCB layout to ensure adequate heat sinking and mechanical stability.

Part Context

This device belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series offers a wide selection of voltages ranging from 3.3 V to 200 V. The 'A' suffix specifically denotes a ±10% voltage tolerance, distinguishing it from tighter tolerance variants like the B (±5%) or C (±2%) suffixes within the same family.

Replacement Considerations

Compatible substitutes include other 5-watt Zener diodes with a 14 V nominal voltage and ±10% tolerance. Verify that any replacement maintains the T-18 axial leaded package form factor and meets the -65°C to +150°C operating temperature range. Ensure the substitute also supports the required 5-watt power dissipation under your specific mounting conditions.