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1N4754AHR1G
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Product Detailed Parameters
- Description：DIODE ZENER 39V 1W DO204AL
- Series：-
- Mfr：Taiwan Semiconductor Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：39 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：60 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 29.7 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：Automotive
- Qualification：AEC-Q101
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Overview
The 1N4754AHR1G is a single Zener diode manufactured by Taiwan Semiconductor, designed for through-hole mounting in the DO-41-2 (DO-204AL) package. It features a nominal Zener voltage of 39 V with a 5% tolerance and a power dissipation rating of 1 W. The device operates within a temperature range of -55°C to +150°C and meets AEC-Q101 automotive qualification standards. Key electrical parameters include a maximum reverse leakage current of 5 µA, a Zener impedance of 60 Ohms, and a test current of 6.5 mA.
Feature Summary
- Automotive-grade reliability certified under AEC-Q101 standards
- High thermal stability supporting operation up to 150°C
- Precision voltage regulation with tight 5% tolerance
Applications
- Voltage reference circuits in automotive electronics
- Over-voltage protection stages
- General-purpose voltage regulation
Procurement Notes
Verify the specific suffix HR1G against official datasheets to confirm AEC-Q101 compliance and lead-free status. Confirm package dimensions match DO-41-2 requirements. Ensure the manufacturer is Taiwan Semiconductor. Check for RoHS and REACH SVHC declarations. Validate that the part number corresponds to the 39V variant.
Selection Notes
Select this component when automotive qualification is required for 39V regulation. Compare Zener impedance and leakage current against circuit sensitivity. Verify thermal management capabilities for 1W dissipation at elevated temperatures. Ensure the through-hole package fits the PCB layout constraints.
Part Context
This part belongs to the 1N47xxAH series of high-reliability Zener diodes. It shares the standard 1N4754A electrical profile but adds automotive qualification and specific packaging configurations. The series provides stable voltage regulation for demanding environments.
Replacement Considerations
Cross-reference with other manufacturers' 1N4754A parts. Verify pinout compatibility and package dimensions. Ensure equivalent Zener voltage and power ratings. Confirm if AEC-Q101 certification is mandatory for the replacement.
