1N5351BE3/TR12

Overview

The Microchip Technology 1N5351BE3/TR12 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333B through 1N5388B series. It provides voltage regulation at a nominal Zener voltage of 14 V with a standard tolerance of ±5%. 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 reverse current of 75 µA, a dynamic impedance of 2.5 Ω, and a maximum regulator current of 6.7 A.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and offers minimal changes in voltage versus current
• Features flexible axial-lead mounting terminals for through-hole integration

Applications

• Voltage regulation circuits requiring 5-watt power dissipation
• Power supply reference applications
• Overvoltage protection systems

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm RoHS compliance status via the e3 suffix designation. Ensure the TR12 tape and reel packaging matches storage requirements. Validate that the specific B suffix corresponds to the required ±5% voltage tolerance before finalizing procurement orders.

Selection Notes

Select this component when a 14 V regulated output is required with high current handling capabilities up to 6.7 A. The T-18 package supports adequate heat sinking for 5-watt continuous operation. Verify thermal resistance constraints if ambient temperatures exceed 25°C. Consider the ±5% tolerance suitable for general-purpose regulation rather than precision applications requiring tighter tolerances.

Part Context

This part belongs to the Microsemi Scottsdale Division 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series covers a wide voltage selection from 3.3 V to 200 V. The 'e3' suffix indicates RoHS compliant annealed matte-tin plating, while the 'TR12' suffix denotes tape and reel packaging options available for automated assembly processes.

Replacement Considerations

Compatible substitutes within the same series include 1N5351B or 1N5351A depending on tolerance requirements. Surface mount equivalents such as SMBJ5351B or SMBG5351B are available for board space optimization. Military screening levels JAN, JANTX, and JANTXV can be obtained by adding MQ, MX, or MV prefixes respectively.