1N5348BE3/TR13

Overview

The Microchip Technology 1N5348BE3/TR13 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333B-1N5388B series. It provides voltage regulation at a nominal Zener voltage of 11 V with a ±5% tolerance, indicated by the 'B' suffix. The device operates within a temperature range of -65°C to +150°C and features a maximum reverse current of 5.0 µA at 8.0 V. Packaged in an axial T-18 case with tape and reel configuration, it offers high surge current capability and low thermal resistance for effective heat dissipation.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and exhibits minimal voltage change versus current
• Features flexible axial-lead mounting terminals for versatile integration
• Constructed with void-free transfer molded thermosetting epoxy body

Applications

• Voltage regulation circuits requiring 5-watt power handling
• High current applications with adequate heat sinking
• General purpose electronic equipment protection

Procurement Notes

Verify the component authenticity against the official Microchip datasheet specifications. Confirm that the part number includes the correct e3 suffix for RoHS compliance and TR13 suffix for tape and reel packaging. Ensure the B suffix corresponds to the required ±5% voltage tolerance. Check for any specific military screening prefixes if environmental ruggedness is required.

Selection Notes

Select this component when a 5-watt axial Zener diode with 11 V regulation is needed. The B suffix ensures a tight ±5% tolerance compared to standard A suffix options. Consider the thermal resistance characteristics and derating curves for high-power operation. Verify compatibility with surface mount equivalents like SMBJ or SMBG series if space constraints require alternative packaging.

Part Context

This component belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series covers a wide voltage range from 3.3 V to 200 V. The 1N5348B variant specifically targets the 11 V regulation point. The e3 suffix denotes lead-free construction compliant with RoHS standards.

Replacement Considerations

Surface mount equivalents are available as SMBJ5348B or SMBG5348B. For higher precision requirements, C suffix (±2%) or D suffix (±1%) variants may be considered if voltage accuracy is critical.