1N5368C/TR8

Overview

The Microchip Technology 1N5368C/TR8 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333B through 1N5388B series. It provides voltage regulation with a nominal Zener voltage of 47 volts and a tight tolerance of plus or minus 2 percent, indicated by the C suffix. The device operates within a temperature range of -65°C to +150°C and features a T-18 axial lead package. Electrical characteristics include a maximum dynamic impedance of 25 ohms at a test current of 25 mA, a maximum reverse leakage current of 0.5 microamperes, and a maximum regulator current of 2.7 amperes.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals 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 high power dissipation
• Power supply reference designs
• Overvoltage protection systems

Procurement Notes

Verify the component manufacturer and lot date code upon receipt, as production may have transitioned between Microsemi and Microchip Technology. Confirm that the part matches the specific electrical tolerances required for your design, particularly the 2% voltage accuracy associated with the C suffix. Ensure proper handling procedures are followed during installation despite the Level 1 moisture classification.

Selection Notes

Select this component when a precise 47-volt reference is needed with a 5-watt power rating. The C suffix ensures a tighter 2% tolerance compared to standard B suffix devices. Consider the thermal resistance of 25°C/W junction-to-lead when designing heat sinking solutions to maintain operation within the specified temperature limits under steady-state conditions.

Part Context

This device belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series offers a wide selection of voltages from 3.3V to 200V. The TR8 suffix indicates the device is supplied in tape and reel packaging, suitable for automated assembly processes.

Replacement Considerations

Compatible substitutes within the same series include the 1N5368B (±5% tolerance) and 1N5368A (±10% tolerance). RoHS-compliant versions are available as 1N5368e3. Surface mount equivalents such as SMBJ5368B or SMBG5368B provide functional alternatives for different mounting requirements.