Overview
The SM15T39CA-E3/9AT is a Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division. This component is part of the SM15T series, designed to protect sensitive electronics from voltage transients induced by inductive load switching and lightning. It features a low profile package, making it ideal for automated placement in various electronic devices.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Stand-off Voltage (VWM) | VWM | 33.3 | V |
| Breakdown Voltage (VBR) - Bidirectional | VBR | 39.0 to 43.1 | V |
| Peak Pulse Power Dissipation (PPPM) | PPPM | 1500 | W |
| Power Dissipation on Infinite Heatsink | PD | 6.5 | W |
| Peak Forward Surge Current (IFSM) - Unidirectional | IFSM | 200 | A |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 to +150 | °C |
| Package | SMC (DO-214AB) | ||
| Polarity | Bidirectional |
Key Features
- Low profile package ideal for automated placement
- Glass passivated chip junction
- 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 SM15T39CA-E3/9AT is used in sensitive electronics to protect against voltage transients induced by inductive load switching and lightning. It is suitable for various applications including:
- Consumer electronics
- Computer systems
- Industrial equipment
- Automotive systems
- Telecommunication devices
- Protection of ICs, MOSFETs, and signal lines of sensor units
Q & A
- What is the peak pulse power dissipation of the SM15T39CA-E3/9AT? The peak pulse 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 is 33.3 V.
- Is the SM15T39CA-E3/9AT available in both unidirectional and bidirectional configurations? Yes, it is available in both configurations.
- What is the maximum operating junction temperature? The maximum operating junction temperature is 150 °C.
- Does the SM15T39CA-E3/9AT meet automotive qualification standards? Yes, it is AEC-Q101 qualified for automotive applications.
- What is the package type of the SM15T39CA-E3/9AT? The package type is SMC (DO-214AB).
- Is the SM15T39CA-E3/9AT RoHS-compliant? Yes, it is RoHS-compliant and also available in halogen-free options.
- What are the typical applications of the SM15T39CA-E3/9AT? It is used to protect sensitive electronics in consumer, computer, industrial, automotive, and telecommunication systems.
- What is the power dissipation on an infinite heatsink? The power dissipation on an infinite heatsink is 6.5 W.
- What is the peak forward surge current (IFSM) for unidirectional devices? The peak forward surge current is 200 A.
