Overview
The 1SMA40CAT3G 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 features excellent clamping capability, high surge capability, low zener impedance, and a fast response time. The 1SMA40CAT3G is part of the SMA series, which is known for its reliability and cost-effectiveness in various industrial and consumer applications.
Key Specifications
| Property | Value |
|---|---|
| Polarity | Bipolar |
| Working Peak Reverse Voltage Range | 10 V to 78 V |
| Standard Zener Breakdown Voltage Range | 11 to 87 V |
| Peak Power Rating | 400 W at 1 ms |
| Maximum Clamp Voltage at Peak Pulse Current | 64.5 V |
| Maximum Reverse Leakage Current | < 5 µA Above 10 V |
| Response Time | Typically Below 1 ns |
| Package | DO-214AC, SMA |
| Operating and Storage Temperature Range | -65°C to +150°C |
| Current - Peak Pulse (10/1000µs) | 6.2 A |
| Capacitance @ Frequency | 315 pF @ 1 MHz |
Key Features
- Excellent clamping capability and high surge capability.
- Low zener impedance and fast response time (typically below 1 ns).
- Void-free, transfer-molded, thermosetting plastic case.
- All external surfaces are corrosion resistant, and leads are readily solderable.
- Pb-free and RoHS compliant.
- Flat handling surface for accurate placement.
- Low profile package suitable for surface mount applications.
Applications
- Communication systems.
- Numerical controls.
- Process controls.
- Medical equipment.
- Business machines.
- Power supplies.
- Automotive systems.
- General purpose protection in industrial and consumer electronics.
Q & A
- What is the primary function of the 1SMA40CAT3G 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 1SMA40CAT3G?
The working peak reverse voltage range is 10 V to 78 V.
- What is the peak power rating of the 1SMA40CAT3G?
The peak power rating is 400 W at 1 ms.
- What is the maximum clamp voltage at peak pulse current for the 1SMA40CAT3G?
The maximum clamp voltage is 64.5 V.
- What is the response time of the 1SMA40CAT3G?
The response time is typically below 1 ns.
- Is the 1SMA40CAT3G Pb-free and RoHS compliant?
- What is the operating and storage temperature range of the 1SMA40CAT3G?
The operating and storage temperature range is -65°C to +150°C.
- What are some common applications for the 1SMA40CAT3G?
Common applications include communication systems, numerical controls, process controls, medical equipment, business machines, and power supplies.
- What package type is the 1SMA40CAT3G available in?
The 1SMA40CAT3G is available in the DO-214AC, SMA package.
- Is the 1SMA40CAT3G still in production?
No, the 1SMA40CAT3G is obsolete and no longer manufactured.
