1N5357CE3/TR12

Overview

The Microchip Technology 1N5357CE3/TR12 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333B to 1N5388B series. It provides voltage regulation at a nominal Zener voltage of 20 V with a tight tolerance of ±2%, indicated by the 'C' suffix. The device operates within a temperature range of -65°C to +150°C and features an axial-lead T-18-2 package. Electrical characteristics include a test current of 65 mA, a maximum dynamic impedance of 3.0 Ohms, and a maximum reverse leakage current of 0.5 µA. The component is RoHS compliant (e3) and supplied 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 voltage change versus current
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B requiring no dry pack

Applications

• Voltage reference circuits requiring precise regulation
• Power supply protection against overvoltage conditions
• General purpose voltage regulation in industrial equipment

Procurement Notes

Verify the specific part number 1N5357CE3/TR12 against official Microchip documentation to confirm availability and manufacturing status. Ensure the C suffix corresponds to the required ±2% tolerance and that the TR12 designation matches the intended tape and reel packaging configuration for your assembly process.

Selection Notes

Select this component when a 20 V regulated output with high precision is required. The 5 W power dissipation rating supports high current operation with adequate heat sinking. Verify thermal resistance requirements for your specific mounting method, as steady-state power dissipation varies significantly between lead-mounted and PCB-mounted configurations.

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 offers a wide selection of voltages from 3.3 V to 200 V. The 'e3' suffix indicates RoHS compliance with matte tin plating, while the 'TR' suffix denotes tape and reel packaging options available for automated assembly.

Replacement Considerations

Consult the manufacturer's datasheet for direct equivalents or cross-references. Other suffixes such as B (±5%) or D (±1%) may be used if tolerance requirements differ. Surface mount equivalents like SMBJ5357 are available for different form factor needs.