Overview
The SM15T18A-M3/9AT is a surface mount transient voltage suppressor (TVS) diode from Vishay General Semiconductor's Diodes Division. This component is part of the SM15T series, known for its high reliability and robust protection against voltage transients. It is designed to protect sensitive electronics from voltage spikes induced by inductive load switching, lightning, and other transient events. The SM15T18A-M3/9AT is particularly suited for use in consumer, computer, industrial, automotive, and telecommunication applications.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Peak Pulse Power Dissipation (10/1000 μs waveform) | PPPM | 1500 | W |
| Peak Pulse Current (10/1000 μs waveform) | IPPM | 59.5 | A |
| Power Dissipation on Infinite Heatsink at TA = 50 °C | PD | 6.5 | W |
| Peak Forward Surge Current (10 ms single half sine-wave, unidirectional only) | IFSM | 200 | A |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 to +150 | °C |
| Reverse Stand-Off Voltage (VWM) | VWM | 17.1 to 18.9 | V |
| Breakdown Voltage (VBR) | VBR | 18.9 to 22.0 | V |
| Maximum Clamping Voltage at IPPM (10/1000 μs) | VC | 25.2 | V |
| Package Type | SMC (DO-214AB) | ||
| Typical Thermal Resistance, Junction to Ambient Air | RθJA | 75 | °C/W |
Key Features
- Low Profile Package: Ideal for space-constrained applications.
- Ideal for Automated Placement: Suitable for high-volume manufacturing.
- Glass Passivated Chip Junction: Enhances reliability and durability.
- High Peak Pulse Power Capability: 1500 W with a 10/1000 μs waveform.
- Excellent Clamping Capability: Effective in protecting against voltage transients.
- Low Inductance: Minimizes the impact of inductive loads.
- AEC-Q101 Qualified: Available for automotive applications with the HE3 or HM3 suffix.
- RoHS-Compliant and Halogen-Free Options: Available with E3 or M3 suffixes.
Applications
The SM15T18A-M3/9AT is versatile and can be used in various applications, including:
- Consumer Electronics: Protects against voltage spikes in consumer devices.
- Computer Systems: Safeguards computer components from transient voltages.
- Industrial Equipment: Protects industrial control systems and sensors.
- Automotive Systems: Used in automotive electronics to protect against transient voltages, especially in systems requiring AEC-Q101 qualification.
- Telecommunication Equipment: Ensures the reliability of telecommunication devices by protecting against voltage transients.
Q & A
- What is the peak pulse power dissipation of the SM15T18A-M3/9AT?
The peak pulse power dissipation is 1500 W with a 10/1000 μs waveform.
- What is the maximum operating junction temperature for this component?
The maximum operating junction temperature is 150 °C.
- Is the SM15T18A-M3/9AT RoHS-compliant?
- What is the typical thermal resistance of the SM15T18A-M3/9AT?
The typical thermal resistance, junction to ambient air, is 75 °C/W).
- What are the common applications of the SM15T18A-M3/9AT?
- Does the SM15T18A-M3/9AT come in a bidirectional version?
- What is the package type of the SM15T18A-M3/9AT?
- Is the SM15T18A-M3/9AT suitable for automated placement?
- What is the peak forward surge current rating for the SM15T18A-M3/9AT?
- Does the SM15T18A-M3/9AT meet automotive standards?
