1N5337A/TR12

Single Zener Diodes Overview

The Microsemi Corporation 1N5337A/TR12 is a silicon 5.0-watt Zener diode in the JEDEC registered 1N5333B-5388B series, housed in an axial-lead T-18 package with a TR suffix for tape and reel packaging. It provides voltage regulation at a nominal Zener voltage of 4.7V with a standard ±10% tolerance. The device operates within a temperature range of -65°C to +150°C and features a maximum dynamic impedance of 2.0 ohms at a test current of 260mA. It withstands high surge stresses and exhibits minimal voltage changes versus current.

Single Zener Diodes 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 demonstrates minimal changes in voltage relative to current variations
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards

Single Zener Diodes Applications

• Voltage regulation in power supply circuits
• Protection against voltage spikes and transients
• Reference voltage generation in electronic systems

Single Zener Diodes Procurement Notes

Verify that the part number includes the 'TR' suffix to confirm tape and reel packaging compatibility with automated assembly equipment. Ensure the 'A' suffix is present to match the required ±10% voltage tolerance specification. Confirm the manufacturer is Microsemi Corporation or its authorized successor entity, as product lines may transition following corporate acquisitions.

Single Zener Diodes Selection Notes

Select this component when a 5-watt power rating and a 4.7V regulated output are required. The T-18 axial lead package is appropriate for designs utilizing through-hole technology. Consider the thermal resistance characteristics and derating curves if the application involves continuous operation at elevated ambient temperatures or limited heat sinking capabilities.

Single Zener Diodes Part Context

This component belongs to the 1N5333B through 1N5388B series of 5.0-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers a wide voltage selection from 3.3V to 200V. These plastic encapsulated devices offer moisture classification Level 1 and are available in various military equivalent screening levels with specific prefix identifiers.

Single Zener Diodes Replacement Considerations

Equivalent surface mount options are available in the SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B series.