Overview
The 1.5SMC39AT3G is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc. This component is designed to protect voltage-sensitive components from high voltage, high energy transients. It is part of the 1.5SMCxxAT3G series, which is known for its excellent clamping capability, high surge capability, low zener impedance, and fast response time.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Working Peak Reverse Voltage | VRWM | 33.3 | V |
| Nominal Breakdown Voltage | VBR | 37.1 - 41 V | V |
| Peak Power Dissipation | Ppk | 1500 | W @ 1 ms |
| Maximum Reverse Leakage Current | IR | 5 | µA @ VRWM |
| Maximum Clamping Voltage | VC | 53.9 | V @ IPP |
| Maximum Peak Pulse Current | IPP | 28 | A |
| ESD Rating | - | Class 3 (> 16 kV) per Human Body Model | - |
| Response Time | - | < 1 ns | - |
| Package | - | DO-214 (SMC) | - |
Key Features
- Excellent clamping capability and high surge capability.
- Low zener impedance.
- Fast response time, typically less than 1 ns.
- High peak power dissipation of 1500 W @ 1 ms.
- Low leakage current of less than 5 µA above 10 V.
- ESD protection rated Class 3 (> 16 kV) per Human Body Model.
- Pb-free packages available.
Applications
The 1.5SMC39AT3G TVS diode is ideally suited for various applications, including:
- Communication systems.
- Automotive systems.
- Process control and numerical controls.
- Medical equipment.
- Business machines and power supplies.
- Industrial and consumer electronics.
Q & A
- What is the primary function of the 1.5SMC39AT3G TVS diode?
The primary function is to protect voltage-sensitive components from high voltage, high energy transients. - What is the working peak reverse voltage range of the 1.5SMC39AT3G?
The working peak reverse voltage range is 33.3 V. - What is the peak power dissipation of the 1.5SMC39AT3G?
The peak power dissipation is 1500 W @ 1 ms. - What is the maximum clamping voltage of the 1.5SMC39AT3G?
The maximum clamping voltage is 53.9 V @ IPP. - What is the response time of the 1.5SMC39AT3G?
The response time is typically less than 1 ns. - What type of package does the 1.5SMC39AT3G come in?
The 1.5SMC39AT3G comes in a DO-214 (SMC) package. - Does the 1.5SMC39AT3G offer ESD protection?
Yes, it offers ESD protection rated Class 3 (> 16 kV) per Human Body Model. - In what types of applications is the 1.5SMC39AT3G commonly used?
It is commonly used in communication systems, automotive systems, process control, medical equipment, business machines, and power supplies. - Is the 1.5SMC39AT3G Pb-free?
Yes, Pb-free packages are available. - What is the maximum reverse leakage current of the 1.5SMC39AT3G?
The maximum reverse leakage current is 5 µA @ VRWM.
