1N5370CE3/TR8

Overview

The Microchip Technology 1N5370CE3/TR8 is a silicon 5-watt Zener diode with a nominal voltage of 56V and a ±2% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse current of 0.5µA at 42.6V and a dynamic impedance of 35Ω. The device utilizes an axial-lead T-18 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 applications

Applications

• Voltage regulation circuits requiring stable reference levels
• Power supply protection against overvoltage conditions
• Surge suppression in electronic systems

Procurement Notes

Verify the component origin as this part number originates from Microsemi, now part of Microchip Technology. Confirm that the e3 suffix indicates RoHS compliance and the TR8 suffix specifies the tape and reel packaging configuration before finalizing procurement orders.

Selection Notes

Select this component for applications demanding high precision voltage regulation due to its narrow tolerance band. Ensure adequate thermal management is provided, as the device dissipates up to 5 watts. Verify that the operating environment falls within the specified wide temperature range for reliable performance.

Part Context

This device belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt Zener diodes. The 'C' suffix specifically denotes a tighter ±2% voltage tolerance compared to standard variants. The 'e3' designation confirms lead finish compliance with environmental standards.

Replacement Considerations

Compatible substitutes include other 56V 5W Zener diodes with ±2% tolerance such as the 1N5370B or 1N5370BE3. Ensure replacement parts match the T-18 axial package dimensions and maintain equivalent power dissipation capabilities.