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1N4745G
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Product Detailed Parameters
- Description：DIODE ZENER 16V 1W DO204AL
- Series：-
- Mfr：Taiwan Semiconductor Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：16 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：16 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 12.2 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 1N4745G is a hermetically sealed glass Zener diode in the DO-41 package. It provides a nominal Zener voltage of 16V with a ±5% tolerance at a test current of 15.5mA. The device supports a maximum power dissipation of 1W and operates within a junction temperature range of -65°C to +200°C. Electrical characteristics include a maximum reverse leakage current of 5µA at 12.2V and a Zener impedance of 16Ω.
Feature Summary
- Hermetically sealed glass construction for environmental protection
- Compression bonded internal design
- Pure tin plated leads ensuring solderability per J-STD-002
- Corrosion resistant external surfaces
Applications
- Low voltage stabilizers
- Voltage references
- Adapters
- Lighting applications
- On-board DC/DC converters
Procurement Notes
Verify the specific ordering suffix (e.g., A0G or R0G) against project requirements, as it determines the packaging format such as Ammo Box or Reel. Confirm RoHS compliance status and lead finish specifications directly with the manufacturer or authorized distributors prior to procurement to ensure alignment with assembly standards.
Selection Notes
Select this component when a 16V regulation point is required in through-hole designs. Ensure the circuit can accommodate the specified 15.5mA test current and that the thermal environment allows for operation up to 200°C junction temperature. Verify that the DO-41 package dimensions fit the available board space.
Part Context
This part belongs to the 1N4728G–1N4758G series from Taiwan Semiconductor, covering a wide Zener voltage range from 3.3V to 56V. All devices in this series share the same DO-41 mechanical footprint and hermetically sealed glass construction, differing primarily in their specific voltage ratings and associated test currents.
Replacement Considerations
Cross-reference with other manufacturers' 1N4745A equivalents. Verify that substitute parts meet the same 1W power rating, 16V nominal voltage, and DO-41 package constraints. Check for differences in leakage current and impedance specifications.
