1N5353CE3/TR12

Overview

The Microchip Technology 1N5353CE3/TR12 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B series. It provides voltage regulation at a nominal Zener voltage of 16 V with a tight tolerance of ±2%. The device operates in a T-18 axial leaded package and supports a maximum power dissipation of 5 watts at 25°C. Electrical characteristics include a test current of 75 mA, a maximum dynamic impedance of 2.5 Ohms, and a maximum reverse leakage current of 75 µA. It functions within an operating temperature range of -65°C to +150°C.

Feature Summary

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

Applications

• Voltage regulation circuits requiring high power handling
• Power supply reference designs
• Protection against overvoltage conditions

Procurement Notes

Verify the component origin as this part number originates from the Microsemi Scottsdale Division product line. Confirm RoHS compliance status via the e3 suffix designation and ensure the TR12 tape and reel packaging matches specific manufacturing requirements. Cross-reference datasheet specifications directly with the manufacturer's documentation to validate electrical parameters before implementation.

Selection Notes

Select this component when a precise 16 V reference with ±2% tolerance is required in a 5 W axial package. Consider the thermal resistance of 25°C/W junction-to-lead for heat sinking calculations. Ensure the application environment stays within the specified -65°C to +150°C operating range and that adequate copper pad area is available on the PCB for thermal management.

Part Context

This device belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi. The series covers a wide voltage selection from 3.3 V to 200 V. The 'C' suffix indicates a tighter ±2% voltage tolerance compared to standard B or A suffixes. The 'e3' suffix denotes RoHS compliance, while 'TR12' specifies the tape and reel packaging format.

Replacement Considerations

Compatible substitutes within the same series include 1N5353B (±5% tolerance) and 1N5353D (±1% tolerance). Surface mount equivalents such as SMBJ5353B or SMBG5353B are available for space-constrained designs. Verify that any replacement maintains the required 5 W power dissipation and axial lead spacing if form factor is critical.