Overview
The SM15T18CA-M3/9AT is a surface mount transient voltage suppressor (TVS) diode produced by Vishay General Semiconductor - Diodes Division. This component is part of the SM15T series, known for its high reliability and robust protection against voltage transients. The SM15T18CA-M3/9AT is specifically designed for bidirectional applications, offering protection in both directions.
This TVS diode is ideal for use in sensitive electronics to protect against voltage transients induced by inductive load switching, lightning, and other transient events. It is widely used in various industries including consumer, computer, industrial, automotive, and telecommunications.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Peak Power Dissipation (10/1000 μs waveform) | PPPM | 1500 | W |
| Stand-Off Voltage | VWM | 15.3 | V |
| Breakdown Voltage | VBR | 17.1 - 18.9 | V |
| Maximum Clamping Voltage (10/1000 μs) | VC | 25.2 | V |
| Maximum Reverse Leakage at VWM | ID | 1.0 | μA |
| Peak Pulse Current (10/1000 μs waveform) | IPPM | See datasheet for specific values | A |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 to +150 | °C |
| Package Type | SMC (DO-214AB) | ||
| Terminals | Matte tin plated leads, solderable per J-STD-002 and JESD 22-B102 |
Key Features
- Low Profile Package: Ideal for automated placement and space-saving designs.
- 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 switching transients.
- AEC-Q101 Qualified: Available for automotive applications with the HE3 or HM3 suffix.
- RoHS and Halogen-Free Compliant: Meets environmental standards with E3 and M3 suffixes.
- High Temperature Capability: Operating junction temperature up to 150 °C.
- Bi-Directional Protection: Available with the CA suffix for bidirectional applications.
Applications
The SM15T18CA-M3/9AT is used in various applications to protect sensitive electronics from voltage transients. These include:
- Protection against inductive load switching and lightning-induced transients.
- ICs, MOSFETs, and signal lines of sensor units.
- Consumer electronics.
- Computer and industrial equipment.
- Automotive systems.
- Telecommunication devices.
Q & A
- What is the peak power dissipation of the SM15T18CA-M3/9AT?
The peak power dissipation is 1500 W with a 10/1000 μs waveform.
- What is the stand-off voltage (VWM) of this TVS diode?
The stand-off voltage (VWM) is 15.3 V.
- What is the breakdown voltage (VBR) range for this component?
The breakdown voltage (VBR) range is 17.1 to 18.9 V.
- What is the maximum clamping voltage (VC) for this TVS diode?
The maximum clamping voltage (VC) is 25.2 V for a 10/1000 μs waveform.
- Is the SM15T18CA-M3/9AT RoHS compliant?
- What is the operating junction temperature range for this component?
The operating junction temperature range is -65 to +150 °C.
- What package type does the SM15T18CA-M3/9AT come in?
- Is the SM15T18CA-M3/9AT suitable for automotive applications?
- What are the typical applications of the SM15T18CA-M3/9AT?
- How does the SM15T18CA-M3/9AT protect against voltage transients?
