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Product Detailed Parameters
- Description:DIODE ZENER 18V 1W DO204AL
- Series:-
- Mfr:Taiwan Semiconductor Corporation
- Package:Bulk
- Voltage - Zener (Nom) (Vz):18 V
- Tolerance:±5%
- Power - Max:1 W
- Impedance (Max) (Zzt):35 Ohms
- Current - Reverse Leakage @ Vr:5 µA @ 13.7 V
- Operating Temperature:-55°C ~ 150°C (TJ)
- Mounting Type:Through Hole
- Package / Case:DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If:-
- Grade:-
- Qualification:-
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Overview
The Taiwan Semiconductor 1N4746A B0G is a single-channel Zener voltage regulator diode designed for through-hole mounting in DO-41 packages. It features a nominal Zener voltage of 18 V with a tolerance of ±5%. The device supports a maximum power dissipation of 1 W and operates within a temperature range of -65°C to +200°C. Key electrical parameters include a test current of 14 mA, a maximum Zener impedance of 20 Ω, and a maximum reverse leakage current of 5 μA.
Feature Summary
- Hermetically sealed glass construction for environmental protection
- High thermal stability supporting extended operating temperatures
- Low leakage current characteristics for precision regulation
Applications
- Voltage reference circuits
- Overvoltage protection systems
- General-purpose voltage regulation
Procurement Notes
Verify the specific suffix 'B0G' against official Taiwan Semiconductor documentation to confirm exact marking or packaging variations. Ensure compatibility with standard DO-41 footprints during integration. Cross-reference datasheets from authorized distributors to validate current production status and compliance certifications before finalizing procurement plans.
Selection Notes
Select this component when a stable 18 V reference is required in high-temperature environments up to 200°C. The DO-41 package suits applications needing robust through-hole assembly. Consider the 1 W power rating for thermal management requirements and verify that the 20 Ω impedance meets circuit sensitivity needs.
Part Context
This part belongs to the standard 1N47xx series of 1 Watt Zener diodes widely used in discrete semiconductor applications. The 1N4746A designation specifically identifies the 18 V variant within this family, offering reliable performance across industrial and commercial electronics sectors.
Replacement Considerations
Compatible substitutes include Vishay 1N4746A, onsemi 1N4746A, and Nexperia 1N4746A. These alternatives share identical electrical specifications and DO-41 packaging, ensuring functional interchangeability in existing designs.
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