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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:-
- Qualification:-
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Overview
The Taiwan Semiconductor 1N4754A R1G is a single silicon planar Zener diode housed in the DO-41 glass axial leaded package. It provides a nominal Zener voltage of 39 V with a tolerance of ±5%. The device supports a maximum power dissipation of 1 W and operates within a junction temperature range of -65 °C to +200 °C. Electrical characteristics include a maximum reverse leakage current of 5 µA and a Zener impedance of 60 Ω at a test current of 6.5 mA.
Feature Summary
- Glass passivated junction construction for enhanced stability
- High thermal performance allowing operation up to 200 °C
- Mechanically robust axial leaded design for through-hole mounting
Applications
- Voltage regulation in DC power supply circuits
- Overvoltage protection for sensitive electronic components
- Reference voltage generation in measurement instrumentation
Procurement Notes
Verify the specific suffix 'R1G' against official datasheets to confirm packaging details, as standard listings may vary between bulk and reel formats. Ensure compliance requirements such as RoHS status are confirmed for the specific manufacturing batch before integration into production designs.
Selection Notes
Select this component when a precise 39 V reference is required in high-temperature environments. The DO-41 package offers reliable mechanical anchoring for through-hole PCBs. Verify that the 60 Ω dynamic impedance meets the noise and regulation requirements of the target application circuit.
Part Context
This part belongs to the 1N47xxA series of 1 W Zener diodes manufactured by Taiwan Semiconductor. The series covers a wide voltage range using standardized JEDEC case outlines. The 1N4754A variant specifically targets applications requiring stable voltage clamping near the 39 V threshold.
Replacement Considerations
Cross-reference with other manufacturers offering the 1N4754A designation, such as onsemi or Microsemi. Confirm that substitute parts maintain identical pinout, voltage tolerance, and thermal ratings to ensure direct compatibility.
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