1N5350C/TR12

Overview

The Microchip Technology 1N5350C/TR12 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333-5388B series, manufactured by the Microsemi Scottsdale Division. It provides voltage regulation at a nominal Zener voltage of 12 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 package. Electrical characteristics include a maximum dynamic impedance of 2.5 Ohms and a maximum reverse current of 2.0 µA.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features low thermal resistance design suitable for high DC currents with adequate heat sinking
• Withstands high surge stresses and is nonsensitive to electrostatic discharge per MIL-STD-750 Method 1020
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B requiring no dry pack

Applications

• Voltage regulation in power supply circuits
• Reference voltage sources in electronic systems
• Overvoltage protection applications

Procurement Notes

Verify component authenticity through authorized channels as this part originates from the Microsemi Scottsdale Division. Confirm that the specific ordering suffix matches the required tolerance and packaging configuration. Ensure compliance with relevant environmental standards such as RoHS if applicable to the final assembly requirements.

Selection Notes

Select this component when precise voltage regulation is required with a tolerance tighter than standard B or A suffix devices. The 5-watt power dissipation rating supports high-current operation provided sufficient heat sinking is implemented. Verify that the T-18 axial lead package fits the mechanical constraints of the target printed circuit board layout.

Part Context

This device belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3 to 200 volts. Different suffix letters identify specific voltage tolerances, with the C suffix denoting ±2% accuracy. These plastic encapsulated diodes are designed for robust performance in demanding environments.

Replacement Considerations

Equivalent parts within the same series include 1N5350B (±5% tolerance) and 1N5350D (±1% tolerance). Surface mount equivalents are available as SMBJ5350 or SMBG5350 variants.