1N5370C/TR12

Overview

The Microchip Technology 1N5370C/TR12 is a silicon 5-watt Zener diode with a nominal voltage of 56 V and a ±2% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse leakage current of 0.5 µA at 42.6 V and a dynamic impedance of 35 Ω at a test current of 20 mA. The component utilizes a T-18 axial lead package and is supplied in tape and reel format.

Feature Summary

• Provides precise voltage regulation with tight manufacturing tolerances
• Capable of handling high surge currents when adequately heat sunk
• Features flexible axial-lead mounting terminals for through-hole integration

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in power supplies
• Clamping applications in electronic signal conditioning

Procurement Notes

Verify the specific suffix configuration against official datasheets before procurement. Confirm that the TR12 designation aligns with required tape and reel specifications. Ensure compatibility with existing thermal management designs due to the 5-watt power dissipation rating.

Selection Notes

Select this component when a 56 V regulated output is required with strict tolerance limits. Consider the T-18 package dimensions for board layout constraints. Evaluate thermal derating requirements based on the intended ambient operating temperature and mounting method.

Part Context

This device belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt silicon Zener diodes. The 'C' suffix indicates a tighter ±2% voltage tolerance compared to standard B or A suffix variants. The 'TR12' suffix denotes the specific tape and reel packaging format for automated assembly.

Replacement Considerations

Consult official manufacturer documentation for confirmed substitute part numbers. Verify equivalent electrical parameters such as voltage, tolerance, and power dissipation before substituting.