Overview
The SM15T18CAHE3/9AT is a Transient Voltage Suppressor (TVS) diode produced by Vishay General Semiconductor - Diodes Division. This component is designed to protect sensitive electronics from voltage transients induced by inductive load switching and lightning. It is part of the SM15T series, known for its high reliability and robust protection capabilities.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Reverse Stand-Off Voltage (VWM) | VWM | 15.3 V | V |
| Reverse Breakdown Voltage (VBR) | VBR | 17.1 V | V |
| Peak Pulse Power (PPP) | PPP | 1500 W | W |
| Peak Pulse Current (IPP) | IPP | 59.5 A | A |
| Power Dissipation on Infinite Heatsink | PD | 6.5 W | W |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 to +150 °C | °C |
| Package Type | SMC (DO-214AB) | ||
| Polarity | Unidirectional |
Key Features
- Low profile package ideal for automated placement.
- Glass passivated chip junction for high reliability.
- 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.
Applications
The SM15T18CAHE3/9AT is used in various applications to protect sensitive electronics against voltage transients. These include:
- Consumer electronics.
- Computer systems.
- Industrial control systems.
- Automotive systems.
- Telecommunication equipment.
Q & A
- What is the primary function of the SM15T18CAHE3/9AT?
The primary function is to protect sensitive electronics from voltage transients induced by inductive load switching and lightning. - What is the peak pulse power capability of the SM15T18CAHE3/9AT?
The peak pulse power capability is 1500 W with a 10/1000 μs waveform. - What are the operating temperature ranges for this component?
The operating junction and storage temperature range is -65 to +150 °C. - Is the SM15T18CAHE3/9AT RoHS-compliant?
Yes, it is RoHS-compliant and also available in halogen-free options. - What package type does the SM15T18CAHE3/9AT use?
The package type is SMC (DO-214AB). - What are the typical applications of the SM15T18CAHE3/9AT?
Typical applications include consumer electronics, computer systems, industrial control systems, automotive systems, and telecommunication equipment. - Is the SM15T18CAHE3/9AT AEC-Q101 qualified?
Yes, it is AEC-Q101 qualified for automotive applications. - What is the maximum peak forward surge current for this component?
The maximum peak forward surge current is 200 A for a 10 ms single half sine-wave. - What is the typical thermal resistance of the SM15T18CAHE3/9AT?
The typical thermal resistance, junction to ambient air, is 75 °C/W. - What is the failure mode of the SM15T18CAHE3/9AT in an overstress condition?
The failure mode is a short circuit in an overstress condition.
