Overview
The 1SMB8.5AT3G is a 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, and a fast response time, making it highly reliable for various applications.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Peak Power Dissipation @ TL = 25°C, Pulse Width = 1 ms | PPK | 600 | W |
| DC Power Dissipation @ TL = 75°C | PD | 3.0 | W |
| Thermal Resistance from Junction-to-Lead | RƟJL | 40 | °C/W |
| Thermal Resistance from Junction-to-Ambient | RƟJA | 226 | °C/W |
| Forward Surge Current @ TA = 25°C | IFSM | 100 | A |
| Operating and Storage Temperature Range | TJ, Tstg | -65 to +150 | °C |
| Working Peak Reverse Voltage | VRWM | 8.5 | V |
| Minimum Breakdown Voltage | VBR @ IT | 9.44 | V |
| Maximum Clamping Voltage @ Peak Pulse Current | VC @ IPP | 14.4 | V |
| Peak Pulse Current (IPP) | IPP | 41.7 | A |
Key Features
- Excellent clamping and high surge capability
- Fast response time, typically less than 1.0 ns
- ESD Rating of Class 3 (> 16 kV) per Human Body Model
- Low leakage current, < 5.0 µA above 10 V
- UL 497B recognition for isolated loop circuit protection
- Pb-free packages available
- AEC-Q101 qualified and PPAP capable for automotive applications
Applications
The 1SMB8.5AT3G TVS diode is ideally suited for use in various applications, including:
- Communication systems
- Automotive systems
- Numerical and process controls
- Medical equipment
- Business machines
- Power supplies
- Industrial and consumer electronics
Q & A
- What is the primary function of the 1SMB8.5AT3G TVS diode?
The primary function is to protect voltage-sensitive components from high voltage, high energy transients.
- What is the peak power dissipation of the 1SMB8.5AT3G?
The peak power dissipation is 600 W at a pulse width of 1 ms.
- What is the maximum clamping voltage of the 1SMB8.5AT3G?
The maximum clamping voltage is 14.4 V at peak pulse current.
- What is the ESD rating of the 1SMB8.5AT3G?
The ESD rating is Class 3 (> 16 kV) per Human Body Model.
- Is the 1SMB8.5AT3G suitable for automotive applications?
- What is the operating temperature range of the 1SMB8.5AT3G?
The operating and storage temperature range is -65 to +150°C.
- What is the forward surge current rating of the 1SMB8.5AT3G?
The forward surge current rating is 100 A at TA = 25°C.
- Does the 1SMB8.5AT3G have UL recognition?
- What is the typical response time of the 1SMB8.5AT3G?
The typical response time is less than 1.0 ns.
- Are Pb-free packages available for the 1SMB8.5AT3G?
