1N5353E3/TR8

Overview

The Microchip Technology 1N5353E3/TR8 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B series. It provides voltage regulation at 16 V with a ±5% tolerance, indicated by the 'B' suffix. The device operates within a temperature range of -65°C to +150°C and features a T-18 axial-lead package. Electrical characteristics include a test current of 75 mA, a maximum dynamic impedance of 2.5 ohms, and a maximum reverse current of 75 µA. The component is RoHS compliant due to the 'e3' suffix and is 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 without requiring dry pack

Applications

• Voltage regulation circuits
• Surge protection systems
• Reference voltage sources

Procurement Notes

Verify the specific part number against official manufacturer documentation to confirm the presence of the 'e3' suffix for RoHS compliance and the 'TR8' suffix for tape and reel packaging. Ensure the 'B' suffix is present to confirm the ±5% voltage tolerance. Cross-reference datasheet electrical parameters such as dynamic impedance and reverse current to validate performance requirements before procurement.

Selection Notes

Select this component when a 5-watt power dissipation rating and a 16 V regulated output are required. The wide operating temperature range supports harsh environments. Verify that the axial-lead T-18 package fits the board layout constraints. Consider thermal derating curves if ambient temperatures exceed standard limits or if heat sinking is not utilized.

Part Context

This component belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series offers a selection of voltages from 3.3 V to 200 V with various tolerance options identified by suffix letters. These plastic encapsulated devices are designed for high DC currents with adequate heat sinking and feature low thermal resistance.

Replacement Considerations

Surface mount equivalents are available as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B.