Overview
The SM15T18CAHE3/57T is a surface mount transient voltage suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division. This component is part of the SM15T series, designed to provide protection against voltage transients induced by inductive load switching, lightning, and other electrical surges. It is ideal for use in sensitive electronics across various industries, including consumer, computer, industrial, automotive, and telecommunications.
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 | See specific table for detailed values | A |
| Stand-Off Voltage (VWM) | VWM | 17.1 to 18.9 V | V |
| Breakdown Voltage (VBR) | VBR | 20.5 to 23.1 V | V |
| Maximum Clamping Voltage (VC) at IPPM (10/1000 μs) | VC | 25.2 to 32.5 V | V |
| Power Dissipation on Infinite Heatsink | PD | 6.5 | W |
| Peak Forward Surge Current (10 ms single half sine-wave) | IFSM | 200 | A |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 to +150 °C | °C |
| Package | SMC (DO-214AB) |
Key Features
- Low profile package ideal for automated placement.
- Available in unidirectional and bidirectional configurations.
- 1500 W peak pulse power capability with a 10/1000 μs waveform.
- Excellent clamping capability and low inductance.
- Meets MSL level 1, per J-STD-020, with a maximum peak of 260 °C.
- AEC-Q101 qualified for automotive applications.
- RoHS-compliant and halogen-free options available.
- Molding compound meets UL 94 V-0 flammability rating.
- Terminals are matte tin plated, solderable per J-STD-002 and JESD 22-B102.
Applications
The SM15T18CAHE3/57T is used in sensitive electronics to protect against voltage transients induced by inductive load switching, lightning, and other electrical surges. It is suitable for various applications including:
- Consumer electronics
- Computer systems
- Industrial control systems
- Automotive systems
- Telecommunication equipment
Q & A
- What is the peak pulse power dissipation of the SM15T18CAHE3/57T? The peak pulse power dissipation is 1500 W with a 10/1000 μs waveform.
- What are the stand-off voltage and breakdown voltage ranges for this component? The stand-off voltage (VWM) ranges from 17.1 to 18.9 V, and the breakdown voltage (VBR) ranges from 20.5 to 23.1 V.
- What is the maximum clamping voltage at IPPM for this TVS diode? The maximum clamping voltage at IPPM (10/1000 μs) is between 25.2 to 32.5 V.
- Is the SM15T18CAHE3/57T RoHS-compliant and halogen-free? Yes, it is RoHS-compliant and available in halogen-free options.
- What is the operating junction and storage temperature range for this component? The operating junction and storage temperature range is -65 to +150 °C.
- What package type is used for the SM15T18CAHE3/57T? It uses the SMC (DO-214AB) package.
- Is the SM15T18CAHE3/57T suitable for automotive applications? Yes, it is AEC-Q101 qualified for automotive use.
- What are the typical applications of the SM15T18CAHE3/57T? It is used in consumer electronics, computer systems, industrial control systems, automotive systems, and telecommunication equipment to protect against voltage transients.
- What is the failure mode of the SM15T18CAHE3/57T in an overstress condition? The failure mode is a short circuit.
- Does the SM15T18CAHE3/57T meet any specific flammability standards? Yes, the molding compound meets the UL 94 V-0 flammability rating.
