1N5354B/TR8

Overview

The Microchip Technology 1N5354B/TR8 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B series. It provides voltage regulation at a nominal Zener voltage of 17 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 dynamic impedance of 2.5 Ohms, a maximum reverse current of 0.5 µA, and a test current of 70 mA.

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 protection against overvoltage conditions
• Reference voltage generation in electronic systems

Procurement Notes

Verify component authenticity by checking manufacturer markings and datasheet specifications. Confirm RoHS compliance status via the e3 suffix if required. Ensure proper handling procedures are followed during installation. Review thermal derating curves for accurate power dissipation calculations under specific mounting conditions.

Selection Notes

Select this component when a 17 V regulated output is required with ±5% tolerance. Consider the 5-watt power rating and T-18 package dimensions for mechanical fit. Evaluate thermal management requirements based on ambient temperature and mounting method to ensure operation within specified limits.

Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series covers a wide voltage range from 3.3 V to 200 V, offering various tolerance options identified by suffix letters such as B for ±5%.

Replacement Considerations

Compatible substitutes include other 1N5354 variants with matching electrical ratings. Verify that replacement parts maintain the same voltage, power dissipation, and package type. Cross-reference with equivalent military screening levels if applicable.