Overview
The 1SMB58AT3G 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 is part of the SMB series, known for its excellent clamping capability, high surge capability, low zener impedance, and fast response time. Although the 1SMB58AT3G is currently obsolete and replaced by the SMBJ series, it remains relevant for understanding the capabilities and applications of TVS diodes in various industries.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Peak Power Dissipation | PPK | 600 | W |
| Working Peak Reverse Voltage | VRWM | 58 | V |
| Breakdown Voltage | VBR | 65.2 - 73.5 | V |
| Maximum Reverse Leakage Current | IR @ VRWM | 5 | μA |
| Clamping Voltage @ Peak Pulse Current | VC @ IPP | 73.5 - 81.2 | V |
| Forward Surge Current | IFSM | 100 | A |
| Operating and Storage Temperature Range | TJ, Tstg | -65 to +150 | °C |
| Response Time | < 1.0 ns | ||
| ESD Rating | > 16 kV per Human Body Model |
Key Features
- Peak power rating of 600 W at 1 ms pulse width
- Excellent clamping capability and high surge capability
- Low zener impedance and fast response time (typically < 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 and other applications requiring unique site and control change requirements
Applications
The 1SMB58AT3G is ideally suited for use in various applications, including:
- Communication systems
- Automotive systems
- Numerical controls
- Process controls
- Medical equipment
- Business machines
- Power supplies
- Industrial and consumer electronics
Q & A
- What is the primary function of the 1SMB58AT3G?
The primary function of the 1SMB58AT3G is to protect voltage-sensitive components from high voltage, high energy transients.
- What is the peak power dissipation of the 1SMB58AT3G?
The peak power dissipation is 600 W at a 1 ms pulse width.
- What is the working peak reverse voltage of the 1SMB58AT3G?
The working peak reverse voltage is 58 V.
- What is the breakdown voltage range of the 1SMB58AT3G?
The breakdown voltage range is between 65.2 V and 73.5 V.
- What is the maximum reverse leakage current at VRWM?
The maximum reverse leakage current at VRWM is 5 μA.
- What is the response time of the 1SMB58AT3G?
The response time is typically less than 1.0 ns.
- Is the 1SMB58AT3G ESD rated?
Yes, it has an ESD rating of Class 3 (> 16 kV) per Human Body Model.
- What are the operating and storage temperature ranges for the 1SMB58AT3G?
The operating and storage temperature ranges are from -65°C to +150°C.
- Is the 1SMB58AT3G UL recognized?
Yes, it has UL 497B recognition for isolated loop circuit protection.
- Is the 1SMB58AT3G still in production?
No, the 1SMB58AT3G is obsolete and has been replaced by the SMBJ series.
