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1N4743AE3
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Product Detailed Parameters
- Description：DIODE ZENER 13V 1W DO204AL
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- 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 Microchip Technology 1N4743AE3 is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 13 V with a standard tolerance of 5%. The device is rated for a power dissipation of 1 W and utilizes the DO-41 axial through-hole package. Electrical characteristics include a maximum reverse leakage current of 5 uA and a Zener impedance of 10 Ohms at a test current of 19 mA. The component operates within a temperature range from -65 C to +200 C.
Feature Summary
- Provides stable voltage regulation in a rugged plastic encapsulated package
- Offers low thermal resistance compared to glass-body options
- Moisture classified as Level 1 requiring no dry pack storage
Applications
- General purpose voltage regulation circuits
- Reference voltage sources
- Overvoltage protection stages
Procurement Notes
Verify the specific manufacturer source, as this part number is produced by multiple entities including Microchip, onsemi, and Rectron. Confirm that the ordering suffix matches the required tolerance and package specifications. Ensure compliance with RoHS directives if applicable to the design requirements. Cross-reference datasheets to validate electrical parameters before integration.
Selection Notes
Select this component when a 13 V reference is required in a through-hole configuration. The 1 W power rating supports moderate current loads. Consider the 5% tolerance for general applications; tighter tolerances require different suffixes. Verify the operating temperature range meets environmental constraints. Compare thermal resistance against alternative package types if space or heat dissipation is critical.
Part Context
This device belongs to the 1N47xx series of 1 Watt Zener diodes. The 'E3' suffix typically indicates lead-free composition and RoHS compliance. The series covers a wide voltage range from 3.3 V to 100 V. Plastic encapsulation provides cost-effective solutions for high-volume manufacturing while maintaining reliable performance in standard industrial environments.
Replacement Considerations
Equivalent parts include 1N4743AUR/TR and MV1N4743APE3. Verify pinout compatibility and package dimensions before substitution. Check datasheet specifications for variations in Zener impedance and leakage current between manufacturers.
