Overview
The 1SMA28CAT3G is a surface mount Transient Voltage Suppressor (TVS) diode produced by Littelfuse Inc. This component is designed to protect voltage-sensitive components from high voltage, high energy transients. It features excellent clamping capability, high surge capability, low zener impedance, and a fast response time, making it highly reliable and cost-effective.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Working Peak Reverse Voltage | VRWM | 28 V | V |
| Standard Zener Breakdown Voltage Range | VBR | 31.1 - 34.37 V | V |
| Peak Power Dissipation @ 1 ms | PPK | 400 W | W |
| ESD Rating | Class 3 (> 16 kV) per Human Body Model | ||
| Response Time | < 1 ns | ns | |
| Maximum Reverse Leakage Current @ VRWM | IR | 2.5 μA | μA |
| Clamping Voltage @ IPP | VC | 45.4 V | V |
| Operating and Storage Temperature Range | TJ, Tstg | -65 to +150 °C | °C |
| Thermal Resistance from Junction-to-Lead | RθJL | 20 °C/W | °C/W |
| Thermal Resistance from Junction-to-Ambient | RθJA | 4.0 °C/W | °C/W |
Key Features
- Excellent clamping capability and high surge capability.
- Low zener impedance and fast response time (< 1 ns).
- Flat handling surface for accurate placement.
- Package design for top slide or bottom circuit board mounting.
- Low profile package.
- Pb-Free device.
- AEC-Q101 qualified and PPAP capable for automotive and other applications requiring unique site and control change requirements.
Applications
The 1SMA28CAT3G is ideally suited for use in various applications, including communication systems, automotive systems, numerical controls, process controls, medical equipment, business machines, power supplies, and many other industrial and consumer applications.
Q & A
- What is the primary function of the 1SMA28CAT3G 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 1SMA28CAT3G? The working peak reverse voltage range is 28 V.
- What is the peak power dissipation of the 1SMA28CAT3G at 1 ms? The peak power dissipation is 400 W.
- What is the ESD rating of the 1SMA28CAT3G? The ESD rating is Class 3 (> 16 kV) per Human Body Model.
- How fast is the response time of the 1SMA28CAT3G? The response time is typically less than 1 ns.
- Is the 1SMA28CAT3G Pb-Free? Yes, the 1SMA28CAT3G is a Pb-Free device.
- What are the operating and storage temperature ranges for the 1SMA28CAT3G? The operating and storage temperature ranges are -65 to +150 °C.
- What is the thermal resistance from junction-to-lead for the 1SMA28CAT3G? The thermal resistance from junction-to-lead is 20 °C/W.
- What is the thermal resistance from junction-to-ambient for the 1SMA28CAT3G? The thermal resistance from junction-to-ambient is 4.0 °C/W.
- In which applications is the 1SMA28CAT3G commonly used? It is commonly used in communication systems, automotive systems, numerical controls, process controls, medical equipment, business machines, power supplies, and other industrial and consumer applications.
