1N5369E3/TR8

Overview

The Microchip Technology 1N5369E3/TR8 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333B through 1N5388B series. It provides voltage regulation at a nominal Zener voltage of 51 V with a ±5% tolerance, indicated by the 'B' 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 27 Ohms and a maximum reverse current of 0.5 µA. The component is RoHS compliant due to the 'e3' suffix and is supplied in tape and reel packaging.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and is non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020
• Features flexible axial-lead mounting terminals for versatile installation
• Moisture classification Level 1 requiring no dry pack

Applications

• Voltage regulation over broad operating current and temperature ranges
• High power dissipation applications requiring adequate heat sinking
• Circuits requiring high specified maximum current capabilities

Procurement Notes

Verify the specific part number against official manufacturer documentation to confirm the presence of all required suffixes, including 'B' for tolerance and 'e3' for RoHS compliance. Confirm that the 'TR8' designation aligns with the intended tape and reel packaging requirements. Ensure compatibility with existing thermal management designs given the 5-watt power dissipation rating.

Selection Notes

Select this component when a 51 V Zener reference with ±5% tolerance is required in a through-hole configuration. Consider the T-18 package dimensions and lead length constraints for PCB layout. Evaluate thermal resistance requirements, as the device achieves its full 5-watt rating only with adequate heat sinking or specific lead mounting conditions.

Part Context

This device belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series offers a wide selection of voltages from 3.3 V to 200 V. The 'e3' suffix indicates RoHS compliance, while the 'TR8' suffix specifies tape and reel packaging options available for these axial-leaded components.

Replacement Considerations

Surface mount equivalents are available in SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B packages. Verify pinout compatibility and thermal performance differences when transitioning from axial-lead to surface-mount technologies.