1N5354A/TR8

Overview

The Microchip Technology 1N5354A/TR8 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B series. It provides voltage regulation with a nominal Zener voltage of 17 V and a tolerance of ±10%, indicated by the 'A' suffix. The device operates in an axial T-18 package, supporting a maximum power dissipation of 5 watts at 25°C. Electrical characteristics include a test current of 70 mA, a maximum dynamic impedance of 2.5 ohms, and a maximum reverse leakage current of 500 nA. It withstands operating temperatures from -65°C to +150°C.

Feature Summary

• Provides stable voltage regulation across a broad range of operating currents and temperatures
• Features flexible axial-lead mounting terminals for through-hole integration
• Withstands high surge stresses and exhibits minimal voltage change versus current
• Constructed with a void-free transfer molded thermosetting epoxy body

Applications

• Voltage regulation circuits requiring 5-watt power handling
• Power supply protection against overvoltage conditions
• Reference voltage generation in electronic systems

Procurement Notes

Verify the specific part number suffix to confirm the voltage tolerance designation. Ensure the procurement channel sources components directly from authorized distributors or the manufacturer to guarantee authenticity. Confirm RoHS compliance status if required by project specifications. Check for any discontinuance notifications or lifecycle changes associated with this component family before finalizing orders.

Selection Notes

Select this component when a 17 V regulation point with ±10% tolerance is required. The 5-watt power rating necessitates adequate heat sinking or derating considerations for continuous operation. Verify that the application environment falls within the specified -65°C to +150°C temperature range. Consider the axial lead format for mechanical mounting constraints compared to surface mount alternatives.

Part Context

This component belongs to the 1N5333B through 1N5388B series of silicon Zener diodes manufactured by Microsemi (now Microchip Technology). The series offers a wide selection of voltages from 3.3 V to 200 V. The 'TR8' suffix indicates the device is supplied in tape and reel packaging, suitable for automated assembly processes.

Replacement Considerations

Compatible substitutes within the same series include 1N5354B (±5% tolerance) and 1N5354C (±2% tolerance), provided the voltage tolerance difference is acceptable for the circuit design.