Overview
The 1SMB12AT3G is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by ON Semiconductor. This component is designed to protect voltage-sensitive components from high voltage, high energy transients. It is part of the SMB series, known for its excellent clamping capability, high surge capability, low zener impedance, and fast response time. The 1SMB12AT3G is packaged in ON Semiconductor’s SURMETIC package, which is cost-effective and highly reliable.
Key Specifications
| Parameter | Value |
|---|---|
| Voltage - Reverse Standoff (Typ) | 12V |
| Voltage - Breakdown (Min) | 13.3V |
| Voltage - Clamping (Max) @ Ipp | 19.9V |
| Current - Peak Pulse (10/1000µs) | 30.2A |
| Peak Power | 600 W @ 1.0 ms |
| ESD Rating | Class 3 (> 16 kV) per Human Body Model |
| Maximum Reverse Leakage Current @ VRWM | < 5.0 µA Above 10 V |
| Response Time | Typically < 1.0 ns |
| Operating and Storage Temperature Range | −65 to +150°C |
| Package | SMB, CASE 403A, Pb-Free |
Key Features
- Excellent clamping capability and high surge capability.
- Low zener impedance and fast response time.
- UL 497B recognition for isolated loop circuit protection.
- ESD Rating of Class 3 (> 16 kV) per Human Body Model.
- Maximum clamp voltage at peak pulse current.
- Low leakage current (< 5.0 µA above 10 V).
- Pb-Free packages available.
- AEC-Q101 qualified and PPAP capable for automotive and other critical applications.
- Void-free, transfer-molded, thermosetting plastic case with corrosion-resistant surfaces.
Applications
The 1SMB12AT3G is ideally suited for various applications including communication systems, automotive systems, numerical controls, process controls, medical equipment, business machines, and power supplies. It is also used in many other industrial and consumer applications where protection against high voltage transients is crucial.
Q & A
- What is the primary function of the 1SMB12AT3G?
The primary function of the 1SMB12AT3G is to protect voltage-sensitive components from high voltage, high energy transients. - What is the typical reverse standoff voltage of the 1SMB12AT3G?
The typical reverse standoff voltage is 12V. - What is the maximum clamping voltage at peak pulse current?
The maximum clamping voltage at peak pulse current is 19.9V. - What is the peak power rating of the 1SMB12AT3G?
The peak power rating is 600 W @ 1.0 ms. - What is the ESD rating of the 1SMB12AT3G?
The ESD rating is Class 3 (> 16 kV) per Human Body Model. - What is the response time of the 1SMB12AT3G?
The response time is typically less than 1.0 ns. - What are the operating and storage temperature ranges for the 1SMB12AT3G?
The operating and storage temperature ranges are −65 to +150°C. - Is the 1SMB12AT3G Pb-Free?
Yes, Pb-Free packages are available. - What certifications does the 1SMB12AT3G hold?
The 1SMB12AT3G holds UL 497B recognition and is AEC-Q101 qualified. - In which applications is the 1SMB12AT3G commonly used?
The 1SMB12AT3G is commonly used in communication systems, automotive systems, numerical controls, process controls, medical equipment, business machines, and power supplies.
