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1N4743AP/TR8
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Product Detailed Parameters
- Description：DIODE ZENER 13V 1W DO204AL
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Zener (Nom) (Vz)：13 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：10 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 9.9 V
- Operating Temperature：-65°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The 1N4743AP/TR8 is a single Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It features a nominal Zener voltage of 13 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 1 W and utilizes the DO-41 axial through-hole package. Electrical characteristics include a maximum reverse leakage current of 5 µA at 9.9 V and a Zener impedance of 10 Ohms. The component operates within a temperature range of -65°C to +200°C junction temperature.
Feature Summary
- Provides stable voltage regulation via Zener breakdown mechanism
- Capable of handling high thermal loads up to 200°C junction temperature
- Offers precise voltage tolerance for sensitive circuit protection
Applications
- Voltage reference circuits requiring stable DC levels
- Overvoltage protection in power supply inputs
- Clamping applications in signal conditioning paths
Procurement Notes
Verify the specific manufacturer designation as Microchip Technology against the part number suffix /TR8. Confirm that the DO-41 package and 1W power rating align with your design requirements. Ensure compatibility with the specified 13V Zener voltage and ±5% tolerance for your target application environment.
Selection Notes
Select this component when a robust 1W through-hole Zener diode is required for high-temperature environments. The DO-41 package provides mechanical stability for automated assembly. Consider the 10 Ohm impedance and 5 µA leakage current specifications to ensure they meet the precision and efficiency demands of the specific voltage regulation topology.
Part Context
This component belongs to the standard 1N47xx series of Zener diodes, widely used for general-purpose voltage regulation. The 1N4743 variant specifically targets the 13V market segment. The /TR8 suffix typically indicates tape and reel packaging, facilitating high-volume automated placement processes in manufacturing lines.
Replacement Considerations
Cross-reference with other manufacturers offering 1N4743 variants in DO-41 packages. Verify equivalent electrical parameters such as 13V Zener voltage, 1W power rating, and ±5% tolerance before substitution.
