ChipApex | Global Electronic Components Supplier
1N4745A TR TIN/LEAD
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：16V 1W TH DIODE-ZENER SINGLE: ST
- Series：-
- Mfr：Central Semiconductor Corp
- 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 (TJ)
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
Download product information
Overview
The Central Semiconductor Corp 1N4745A TR TIN/LEAD is a silicon unidirectional Zener diode housed in the DO-41 axial leaded package. It provides a nominal Zener voltage of 16 V with a tolerance of ±5%. The device supports a maximum steady-state power dissipation of 1 W and features a low reverse leakage current of 5 µA. Its dynamic impedance is specified at 125 Ω, and it operates within a temperature range of -65 °C to +200 °C.
Feature Summary
- Utilizes a hermetically sealed glass construction for robust environmental protection
- Designed for high-temperature operation up to 200 °C
- Provides stable voltage regulation with tight manufacturing tolerances
Applications
- Voltage reference circuits requiring stable DC levels
- Overvoltage protection stages in electronic systems
- General-purpose clipping and clamping applications
Procurement Notes
Verify that the specific ordering suffix matches the required tin/lead plating specification, as many modern equivalents utilize lead-free terminations. Confirm the tape-and-reel packaging format aligns with automated assembly equipment requirements. Ensure the component meets all applicable RoHS directives if lead-free compliance is mandatory for the final product assembly process.
Selection Notes
Select this component when a standard 16 V regulation point is required in an axial through-hole configuration. The DO-41 package offers reliable mounting for general PCB layouts. Consider the 1 W power rating for thermal management needs and verify that the 125 Ω dynamic impedance meets the noise and stability requirements of the target circuit design.
Part Context
This part belongs to the widely recognized 1N47xx series of Zener diodes, which serves as a fundamental industry standard for voltage regulation. The 1N4745A designation specifically identifies the 16 V variant within this extensive family. Central Semiconductor manufactures this component to maintain compatibility with legacy designs while providing modern supply chain options.
Replacement Considerations
Compatible substitutes include the Fairchild Semiconductor 1N4745A and Vishay Semiconductors 1N4745A-TR. These alternatives share identical electrical characteristics and mechanical dimensions, allowing for direct pin-for-pin replacement in existing circuit designs without modification.
