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1N4751G
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Product Detailed Parameters
- Description：DIODE ZENER 30V 1W DO204AL
- Series：-
- Mfr：Taiwan Semiconductor Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：30 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：40 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 22.8 V
- Operating Temperature：-65°C ~ 200°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 1N4751G is a 1W Zener diode from the Taiwan Semiconductor 1N4728G–1N4758G series, housed in a DO-41 package. It features a nominal Zener voltage of 30V with a standard tolerance of ±5%. The device operates within a junction temperature range of -65°C to +200°C and has a maximum power dissipation of 1W. Electrical specifications include a test current of 8.5mA, a regular impedance of 40Ω at IZT, and a leakage current of 5µA at VR=22.8V. The component utilizes hermetically sealed glass construction with pure tin plated leads.
Feature Summary
- Hermetically sealed glass construction for environmental protection
- Wide Zener voltage selection across the series range
- Standard ±5% Zener voltage tolerance
- RoHS compliant manufacturing process
Applications
- Low voltage stabilizers
- Voltage references
- Adapters
- Lighting applications
- On-board DC/DC converters
Procurement Notes
Verify the specific ordering suffix (R0G or A0G) against project requirements, as these determine packing quantities and methods. Confirm that the DO-41 package dimensions and lead solderability meet J-STD-002 standards for the intended assembly process. Ensure the 30V nominal voltage aligns with circuit design constraints before finalizing procurement.
Selection Notes
Select this component when a 30V reference is required in a DO-41 form factor. Consider the 40Ω regular impedance and 8.5mA test current for biasing calculations. Evaluate thermal resistance values if operating near maximum junction temperatures. Verify compatibility with existing PCB footprints designed for axial leaded DO-41 components.
Part Context
This part belongs to the 1N4728G–1N4758G series, covering Zener voltages from 3.3V to 56V. All members share identical mechanical and thermal characteristics, differing primarily in nominal voltage and associated test parameters. The series provides a standardized solution for general-purpose voltage regulation tasks requiring robust glass-sealed packaging.
Replacement Considerations
Cross-reference with other manufacturers' 1N4751 equivalents. Verify that substitute parts match the 30V nominal voltage, 1W power rating, and DO-41 package outline. Ensure impedance and leakage specifications are compatible with the original circuit design requirements.
FAQ
What is the regular impedance of the 1N4751G?
The regular impedance is 40Ω at the test current of 8.5mA.
What is the maximum junction temperature for this device?
The maximum junction temperature is 200°C.
How is polarity indicated on the component?
Polarity is indicated by the cathode band on the glass body.
