1N5368A/TR8

Overview

The Microchip Technology 1N5368A/TR8 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333-5388B series, designed for voltage regulation in axial-leaded T-18 packages. It provides a nominal Zener voltage of 47 V with a ±10% tolerance, indicated by the 'A' suffix. The device operates within a temperature range of -65°C to +150°C and features a maximum dynamic impedance of 25 ohms at a test current of 25 mA. It includes a tape and reel option (TR8) for automated assembly.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals suitable for through-hole applications
• Withstands high surge stresses and exhibits minimal changes in voltage versus current
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

• Voltage regulation circuits requiring 47 V reference
• Power supply protection against overvoltage conditions
• Industrial equipment utilizing robust axial-lead components

Procurement Notes

Verify the specific suffix configuration to ensure correct voltage tolerance and packaging format. Confirm RoHS compliance status if required, as standard versions may differ from e3 variants. Check manufacturer discontinuation notices for availability constraints. Validate thermal management requirements based on the intended mounting method and ambient temperature conditions.

Selection Notes

Select this component when a 47 V Zener voltage with ±10% tolerance is required in a 5-watt power rating. Ensure the application supports the T-18 axial package dimensions. Consider thermal derating curves for high-current operations. Verify that the maximum reverse current and dynamic impedance specifications meet the circuit's leakage and regulation requirements.

Part Context

This part belongs to the Microsemi/Microchip 1N5333-5388B series of silicon 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3 V to 200 V with various tolerance options identified by suffix letters. These devices are plastic encapsulated with Level 1 moisture classification, requiring no dry pack storage.

Replacement Considerations

Equivalent parts include other 47 V 5 W Zener diodes in T-18 packages with similar electrical characteristics. Verify pinout compatibility and thermal resistance values before substitution.