1N5338A/TR8

Single Zener Diodes Overview

The Microsemi Corporation 1N5338A/TR8 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333-5388B series, designed for voltage regulation across a broad operating current and temperature range. It features a nominal Zener voltage of 5.1 V with a ±10% tolerance, indicated by the 'A' suffix. The device operates within a temperature range of -65°C to +150°C and utilizes a T-18 axial-lead plastic package. Electrical characteristics include a maximum dynamic impedance of 1.5 Ohms at a test current of 240 mA, a maximum reverse leakage current of 10 µA, and a maximum regulator current of 930 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation over a wide operating current and temperature range
• Features flexible axial-lead mounting terminals in a void-free transfer molded thermosetting epoxy body
• Withstands high surge stresses and exhibits minimal changes of voltage versus current
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B with no dry pack required

Single Zener Diodes Applications

• Voltage regulation circuits requiring 5.1 V reference
• Power supply protection against high surge stresses
• Equipment requiring robust thermal performance up to 150°C

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix 'TR8' corresponds to the tape and reel packaging option as defined by EIA-296 standards. Confirm that the component meets the required RoHS compliance status, noting that standard versions may differ from RoHS-compliant variants identified by an 'e3' suffix. Ensure the procurement matches the exact manufacturer part number to guarantee correct tolerance and electrical specifications.

Single Zener Diodes Selection Notes

Select this component when a 5.1 V Zener voltage with ±10% tolerance is required for through-hole applications. Consider the 5.0-watt power dissipation capability and the low thermal resistance design for heat sinking requirements. Verify that the T-18 package dimensions fit the available board space and that the lead length accommodates the specified thermal resistance measurements.

Single Zener Diodes Part Context

This component belongs to the Microsemi 1N5333-5388B series of silicon 5-watt Zener diodes. The series offers a selection of voltages from 3.3 to 200 volts, with tolerances identified by specific suffix letters. The 'A' suffix specifically denotes a ±10% voltage tolerance. These devices are JEDEC registered and utilize plastic encapsulation suitable for general-purpose voltage regulation tasks.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B. Military equivalent screening levels can be obtained by adding MQ, MX, or MV prefixes respectively to part numbers.