1N4743A TR PBFREE

Overview

The Central Semiconductor Corp 1N4743A TR PBFREE is a silicon Zener diode designed for voltage regulation in industrial and commercial applications. It features a nominal Zener voltage of 13 V with a ±5% tolerance, tested at 19 mA. The device dissipates up to 1.0 W at 50°C and operates within a temperature range of -65°C to +200°C. Packaged in the DO-41 axial leaded case, it offers a maximum reverse current of 5 µA at 12 V and a maximum DC forward current of 9.9 mA.

Feature Summary

• Provides stable voltage regulation using silicon junction technology
• Features a robust glass body encapsulation in an axial leaded package
• Designed for reliable operation across extreme temperature environments

Applications

• Industrial equipment voltage regulation
• Commercial power supply circuits
• Computer system protection
• Entertainment electronics voltage reference

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm plating options and packaging format. Confirm that the requested configuration matches the required electrical characteristics and mechanical outline before finalizing procurement orders.

Selection Notes

Select this component when a 13 V reference with high reliability is required. Ensure the circuit design accommodates the specified thermal dissipation limits and operating temperature range. Verify compatibility with the DO-41 mounting style for the target application board.

Part Context

This part belongs to the 1N4728A through 1N4764A series of 1-watt silicon Zener diodes. The series provides a wide range of voltage options from 3.3 V to 100 V, all sharing common mechanical dimensions and general performance characteristics defined by the manufacturer's standard specifications.

Replacement Considerations

No official replacement part numbers are documented for this specific model in the provided datasheet or product change notifications.