1N5348CE3/TR12

Overview

The Microchip Technology 1N5348CE3/TR12 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B series. It features an 11V nominal Zener voltage with ±2% tolerance, indicated by the 'C' suffix. The device operates within a temperature range of -65°C to +150°C and utilizes an axial-lead package with void-free transfer molded epoxy. The 'e3' suffix denotes RoHS compliance, while '/TR12' indicates tape and reel packaging per EIA-296 standards.

Feature Summary

• Provides precise voltage regulation with tight ±2% tolerance for stable reference applications
• Capable of handling high surge stresses and maximum DC currents when adequately heat sunk
• Features flexible axial-lead mounting terminals suitable for various PCB configurations
• Encapsulated in moisture classification Level 1 material requiring no dry pack storage

Applications

• Voltage regulation circuits requiring broad operating current stability
• Reference voltage sources in precision electronic systems
• Protection against overvoltage conditions in power supplies

Procurement Notes

Verify that the ordering suffix matches the required specifications: 'C' for ±2% tolerance, 'e3' for RoHS compliance, and '/TR12' for tape and reel packaging. Confirm the manufacturer origin as Microsemi (now Microchip) Scottsdale Division. Ensure the component meets the specified JEDEC registration standards for the 1N5348B series before procurement.

Selection Notes

Select this component when an 11V Zener voltage with ±2% tolerance is required in a 5-watt axial package. Consider the thermal resistance of 25°C/W junction-to-lead for heat sinking requirements. Verify compatibility with surface mount equivalents like SMBJ5348 if space constraints exist. Ensure the application environment stays within the -65°C to +150°C operating temperature range.

Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series offers a wide selection of voltages from 3.3V to 200V with various tolerance options. These devices are designed for robust performance in demanding environments, offering low thermal resistance and high surge current capabilities compared to lower-power alternatives.

Replacement Considerations

Surface mount equivalents such as SMBJ5348B or SMBG5348B are available from the same manufacturer. For military screening levels, prefixes MQ, MX, or MV can be added to the base part number. Direct pin-compatible replacements must maintain the 5-watt power dissipation rating and 11V Zener voltage specification.