1N5357CE3/TR13

Overview

The Microchip Technology 1N5357CE3/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 20V with a ±5% tolerance. The device operates in an axial DO-41 package and supports a maximum steady-state power dissipation of 5 watts at lead temperatures below 25°C. Electrical characteristics include a test current of 65mA, a maximum dynamic impedance of 3.0 ohms, and a maximum reverse leakage current of 0.5µA. The component withstands high surge currents and features a void-free transfer molded thermosetting epoxy body.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and offers minimal changes in voltage versus current
• Features flexible axial-lead mounting terminals for standard through-hole integration

Applications

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

Procurement Notes

Verify that the ordering suffix 'e3' confirms RoHS compliance and 'TR13' indicates tape and reel packaging per EIA-296 standards. Confirm the manufacturer designation aligns with Microchip Technology or its predecessor entities to ensure authenticity. Check for specific military screening prefixes if environmental ruggedness is required for the application.

Selection Notes

Select this component when a 5-watt axial Zener diode with a 20V nominal rating is required. Ensure the design accommodates the specified thermal resistance of 25°C/W junction-to-lead for adequate heat sinking. Verify that the ±5% voltage tolerance meets the circuit requirements and that the package dimensions fit the PCB layout constraints.

Part Context

This part 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 3.3V to 200V. The 'e3' suffix denotes lead finish and material compliance, while 'TR13' specifies the reel packaging format for automated assembly processes.

Replacement Considerations

Compatible substitutes within the same series include other 1N53xxB devices with matching voltage ratings. Surface mount equivalents such as SMBJ5357B or SMBG5357B are available for designs requiring different form factors.