1N5354/TR12

Overview

The Microchip Technology 1N5354/TR12 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333B-1N5388B series. It provides voltage regulation at a nominal Zener voltage of 17 V with a ±5% tolerance, indicated by the B suffix. The device operates in a T-18 axial lead package and is supplied in tape and reel format per EIA-296 standards. Electrical characteristics include a test current of 70 mA, a maximum dynamic impedance of 2.5 Ohms, and a maximum reverse leakage current of 0.5 µA. It withstands a maximum surge current of 5.8 A and maintains operation within a temperature range of -65°C to +150°C.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and features minimal changes in voltage versus current
• Offers flexible axial-lead mounting terminals for through-hole integration
• Constructed with a void-free transfer molded thermosetting epoxy body

Applications

• Voltage regulation in power supply circuits
• Reference voltage generation in electronic systems
• Overvoltage protection applications

Procurement Notes

Verify the component status as the source datasheet identifies this series under Microsemi. Confirm RoHS compliance requirements against the specific e3 suffix designation if applicable. Ensure the TR12 suffix aligns with standard EIA-296 tape and reel specifications. Validate that the manufacturer documentation matches the required electrical tolerances and thermal ratings for the intended design.

Selection Notes

Select this component for designs requiring a 17 V reference with tight ±5% tolerance. The 5 W power dissipation rating supports high-current applications when adequate heat sinking is provided. Consider the T-18 package dimensions for PCB layout constraints. Verify that the 70 mA test current aligns with the circuit's biasing requirements.

Part Context

This part belongs to the 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 TR12 suffix indicates the device is packaged in tape and reel format for automated assembly processes.

Replacement Considerations

Consult the official datasheet for verified substitute part numbers or equivalent components within the same series.