Overview
The SM15T18A-E3/9AT is a transient voltage suppressor (TVS) diode produced by Vishay General Semiconductor - Diodes Division. This component is part of the SM15T series, known as TransZorb® devices, which are designed to protect sensitive electronics from voltage transients induced by inductive load switching and lightning.
These diodes are characterized by their high peak pulse power capability, excellent clamping capability, and low inductance, making them ideal for use in various applications including consumer, computer, industrial, automotive, and telecommunication systems.
Key Specifications
| Product Attribute | Attribute Value |
|---|---|
| Manufacturer | Vishay General Semiconductor - Diodes Division |
| Voltage - Breakdown (Min) | 17.1 V |
| Voltage - Breakdown (Nom) | 18 V |
| Voltage - Breakdown (Max) | 18.9 V |
| Voltage - Reverse Standoff (Typ) | 15.3 V |
| Voltage - Clamping (Max) @ Ipp | 25.2 V |
| Unidirectional Channels | 1 |
| Type | Transient Voltage Suppressor Diode |
| Supplier Device Package | DO-214AB (SMCJ) |
| Series | SM15T, TransZorb® |
| Power - Peak Pulse | 1500 W (1.5 kW) |
| Current - Peak Pulse (10/1000 µs) | 71 A |
| Operating Temperature | -65°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
Key Features
- High Peak Pulse Power Capability: The SM15T18A-E3/9AT can handle up to 1500 W of peak pulse power, making it suitable for protecting against high-energy transients.
- Excellent Clamping Capability: This diode provides effective clamping of voltage transients, ensuring that the voltage across the protected circuit remains within safe limits.
- Low Inductance: The low inductance of the package minimizes the impact of high-frequency transients.
- Automated Placement Friendly: The component is designed for automated placement, making it ideal for high-volume manufacturing processes.
- Wide Operating Temperature Range: The diode operates over a temperature range of -65°C to 150°C, making it suitable for a variety of environmental conditions.
- Compliance with Standards: The device is ROHS3 compliant and meets MSL level 1, per J-STD-020.
Applications
The SM15T18A-E3/9AT is used in various applications to protect sensitive electronics from voltage transients. These include:
- Consumer Electronics: Protection of ICs, MOSFETs, and signal lines in consumer devices.
- Computer Systems: Protection against voltage transients in computer hardware and peripherals.
- Industrial Systems: Protection of industrial control systems and equipment from transients induced by inductive load switching and lightning.
- Automotive Systems: Protection of automotive electronics, including those in engine control units and other sensitive components.
- Telecommunication Systems: Protection of telecommunication equipment from voltage transients.
Q & A
- What is the peak pulse power capability of the SM15T18A-E3/9AT?
The SM15T18A-E3/9AT has a peak pulse power capability of 1500 W (1.5 kW).
- What is the typical reverse standoff voltage of the SM15T18A-E3/9AT?
The typical reverse standoff voltage is 15.3 V.
- What is the maximum clamping voltage at Ipp for the SM15T18A-E3/9AT?
The maximum clamping voltage at Ipp is 25.2 V.
- What is the operating temperature range of the SM15T18A-E3/9AT?
The operating temperature range is -65°C to 150°C (TJ).
- Is the SM15T18A-E3/9AT ROHS compliant?
Yes, the SM15T18A-E3/9AT is ROHS3 compliant.
- What is the moisture sensitivity level (MSL) of the SM15T18A-E3/9AT?
The MSL is level 1, per J-STD-020.
- What type of package does the SM15T18A-E3/9AT use?
The component uses a DO-214AB (SMCJ) package.
- What is the peak pulse current rating of the SM15T18A-E3/9AT?
The peak pulse current rating is 71 A for a 10/1000 µs waveform.
- Is the SM15T18A-E3/9AT suitable for automated placement?
Yes, it is designed for automated placement.
- What are some typical applications of the SM15T18A-E3/9AT?
Typical applications include protection in consumer electronics, computer systems, industrial systems, automotive systems, and telecommunication systems.
