1N5356C/TR8

Overview

The Microchip Technology 1N5356C/TR8 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B series. It provides voltage regulation at 19 V with a tight ±2% tolerance, indicated by the 'C' suffix. The device operates in an axial lead T-18 package and supports tape-and-reel packaging via the 'TR8' suffix. Electrical characteristics include a maximum dynamic impedance of 3.0 ohms and a maximum reverse current of 0.5 µA. It withstands operating temperatures from -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
• Moisture classification Level 1 requiring no dry pack

Applications

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

Procurement Notes

Verify the specific manufacturer origin, as the datasheet identifies Microsemi Scottsdale Division while the model prefix indicates Microchip Technology. Confirm that the TR8 suffix aligns with standard EIA-296 tape and reel specifications. Ensure the component meets required environmental standards and check for any discontinuance notifications associated with this part number before finalizing procurement plans.

Selection Notes

Select this component when a precise 19 V reference with ±2% tolerance is required. The 5 W power dissipation rating allows operation at high DC currents provided adequate heat sinking is utilized. Consider the thermal resistance of 25 °C/W junction-to-lead for circuit layout. Verify compatibility with existing axial lead footprints and ensure the operating temperature range suits the application environment.

Part Context

This component belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3 V to 200 V. Different suffix letters identify specific voltage tolerances, with the C suffix denoting ±2%. The series is JEDEC registered and available in various military equivalent screening levels upon request.

Replacement Considerations

Equivalent parts within the same series include 1N5356B (±5% tolerance) or 1N5356D (±1% tolerance). Surface mount equivalents are available as SMBJ5356B or SMBG5356B.