1N5355CE3/TR13

Overview

The Microchip Technology 1N5355CE3/TR13 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 18V with a tight tolerance of ±2%, indicated by the 'C' suffix. The device operates within an ambient temperature range of -65°C to +150°C and features a plastic encapsulated T-18 axial-lead package. The 'e3' suffix denotes RoHS compliance, while the 'TR13' suffix indicates availability in tape and reel packaging.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for through-hole applications
• Withstands high surge stresses and exhibits minimal changes in voltage versus current
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B requiring no dry pack

Applications

• Voltage regulation circuits requiring high power dissipation
• Power supply protection against overvoltage conditions
• Reference voltage generation in industrial equipment

Procurement Notes

Verify that the ordering suffixes match specific requirements: 'C' confirms the ±2% tolerance, 'e3' ensures RoHS compliance, and 'TR13' specifies tape and reel packaging. Confirm the manufacturer origin as Microsemi (Scottsdale Division) or its successor entity. Ensure the component meets the specified thermal resistance and maximum ratings for your application environment.

Selection Notes

Select this component when a 5-watt power rating and an 18V regulation point are required. The ±2% tolerance makes it suitable for precision applications compared to standard 5% or 10% variants. Consider the T-18 package dimensions and lead length requirements for PCB layout. Verify thermal management needs, as steady-state power dissipation depends on adequate heat sinking or FR4 copper pad specifications.

Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3V to 200V. Different suffix letters identify voltage tolerances, such as B for ±5%, A for ±10%, C for ±2%, and D for ±1%. Military equivalent screening levels are available via specific prefixes.

Replacement Considerations

Equivalent parts include other 5W Zener diodes with 18V regulation and ±2% tolerance. Surface mount equivalents like SMBJ5355 or SMBG5355 may be considered if footprint changes are acceptable. Verify thermal characteristics and package compatibility before substitution.