Overview
The 1SMA70AT3G is a 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 SMA series, known for its excellent clamping capability, high surge capability, low zener impedance, and fast response time.
The 1SMA70AT3G is packaged in the DO-214AC (SMA) case, which is a surface-mount package, making it suitable for a wide range of applications where space is limited. The component is RoHS compliant and lead-free, adhering to environmental regulations and ensuring safety in various electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | ON Semiconductor | |
| Package | DO-214AC, SMA | |
| Number of Pins | 2 | |
| Diode Element Material | Silicon | |
| Reverse Stand-off Voltage | 70 V | V |
| Breakdown Voltage | 77.8 V | V |
| Peak Pulse Current | 3.5 A | A |
| Max Surge Current | 33.3 A | A |
| Peak Pulse Power | 400 W | W |
| Operating Temperature | -65°C to 150°C | °C |
| Peak Reflow Temperature | 260°C | °C |
| Time @ Peak Reflow Temperature | 40 s | s |
| Leakage Current | 2.5 μA | μA |
| ESD Protection | Yes | |
| RoHS Status | RoHS Compliant | |
| Lead Free | Yes |
Key Features
- Excellent Clamping Capability: The 1SMA70AT3G provides effective protection against high-voltage transients, ensuring the safety of sensitive components.
- High Surge Capability: With a peak pulse current of 3.5 A and a maximum surge current of 33.3 A, this diode can handle significant transient events.
- Low Zener Impedance: This feature helps in efficient clamping and reduces the impact of transients on the protected circuit.
- Fast Response Time: The diode responds quickly to transient events, typically in less than 1 ns, ensuring rapid protection of the circuit.
- ESD Protection: The component includes ESD protection mechanisms to safeguard against electrostatic discharges.
- Surface Mount Package: The DO-214AC (SMA) package is designed for surface mounting, making it ideal for compact electronic designs.
- RoHS Compliant and Lead-Free: Adheres to environmental regulations, ensuring safety and compliance in various applications.
Applications
- Communication Systems: Protects components in communication equipment from transient voltages.
- Automotive Systems: Used in automotive electronics to safeguard against voltage spikes and transients.
- Numerical and Process Controls: Ensures the reliability of control systems by protecting against high-energy transients.
- Medical Equipment: Provides critical protection in medical devices where reliability and safety are paramount.
- Business Machines and Power Supplies: Protects voltage-sensitive components in office equipment and power supplies.
- Industrial and Consumer Electronics: Suitable for a wide range of industrial and consumer electronic applications where transient protection is necessary.
Q & A
- What is the primary function of the 1SMA70AT3G TVS diode?
The primary function of the 1SMA70AT3G is to protect voltage-sensitive components from high-voltage, high-energy transients.
- What is the package type of the 1SMA70AT3G?
The 1SMA70AT3G is packaged in the DO-214AC (SMA) surface-mount package.
- What is the reverse stand-off voltage of the 1SMA70AT3G?
The reverse stand-off voltage is 70 V.
- What is the peak pulse current rating of the 1SMA70AT3G?
The peak pulse current rating is 3.5 A.
- What is the maximum surge current the 1SMA70AT3G can handle?
The maximum surge current is 33.3 A.
- What is the peak pulse power dissipation capability of the 1SMA70AT3G?
The peak pulse power dissipation capability is 400 W.
- What is the operating temperature range of the 1SMA70AT3G?
The operating temperature range is -65°C to 150°C.
- Is the 1SMA70AT3G RoHS compliant and lead-free?
Yes, the 1SMA70AT3G is RoHS compliant and lead-free.
- What are some common applications of the 1SMA70AT3G?
Common applications include communication systems, automotive systems, numerical and process controls, medical equipment, business machines, and power supplies.
- How quickly does the 1SMA70AT3G respond to transient events?
The response time is typically less than 1 ns.
- Does the 1SMA70AT3G provide ESD protection?
Yes, the 1SMA70AT3G includes ESD protection mechanisms.
