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1N4737G
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Product Detailed Parameters
- Description：DIODE ZENER 7.5V 1W DO204AL
- Series：-
- Mfr：Taiwan Semiconductor Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：7.5 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：4 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 5 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 Taiwan Semiconductor 1N4737G is a silicon Zener diode housed in a DO-41 glass package. It provides a nominal Zener voltage of 7.5 V with a standard tolerance of ±5%. The device dissipates up to 1 W of power and operates within a junction temperature range of -65 °C to +200 °C. Electrical characteristics include a test current of 34 mA, a maximum dynamic impedance of 4 Ω at the test current, and a leakage current of 10 µA at 5 V reverse voltage.
Feature Summary
- Hermetically sealed glass construction for corrosion resistance
- Wide selection of Zener voltages from 3.3V to 56V
- Standard ±5% Zener voltage tolerance
- Pure tin plated leads solderable per J-STD-002
Applications
- Low voltage stabilizers or voltage references
- Adapters
- Lighting applications
- On-board DC/DC converters
Procurement Notes
Verify the specific ordering suffix (e.g., A0G for Ammo Box or R0G for Reel) against project requirements, as packaging quantities differ. Confirm RoHS compliance status and lead finish specifications directly with the manufacturer or authorized distributors before finalizing procurement orders.
Selection Notes
Select this component when a hermetically sealed through-hole Zener diode is required for voltage regulation. Ensure the circuit design accommodates the specified thermal resistance values and that the operating current remains within the 34 mA test current limits to maintain accurate voltage regulation performance.
Part Context
This part belongs to the 1N4728G through 1N4758G series manufactured by Taiwan Semiconductor. The series utilizes a JEDEC DO-41 package and offers a broad range of Zener voltages. The 'G' suffix indicates a hermetically sealed glass body variant designed for high-temperature stability and reliability.
Replacement Considerations
Cross-reference with other manufacturers offering 1N4737 equivalents in the DO-41 package. Verify that substitute parts match the 7.5 V nominal voltage, 1 W power dissipation, and ±5% tolerance specifications to ensure functional compatibility.
