Overview
The SM15T33A-E3/9AT is a surface mount TRANSZORB® Transient Voltage Suppressor (TVS) diode manufactured 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 features a low profile package, making it ideal for automated placement in various applications.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Peak Pulse Power Dissipation (10/1000 μs waveform) | PPPM | 1500 | W |
| 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 | 28.2 | V |
| Breakdown Voltage (VBR) | VBR | 31.4 to 34.7 | V |
| Maximum Clamping Voltage (VC) at IPPM (10/1000 μs) | VC | 45.7 | V |
| Package Type | DO-214AB (SMC) | ||
| Typical Thermal Resistance, Junction to Ambient Air | RθJA | 75 | °C/W |
Key Features
- Low profile package ideal for automated placement
- Glass passivated chip junction for 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
Applications
The SM15T33A-E3/9AT is used in sensitive electronics protection against voltage transients induced by inductive load switching and lightning. It is suitable for various industries including consumer, computer, industrial, automotive, and telecommunications. Specific applications include protection of ICs, MOSFETs, and signal lines of sensor units.
Q & A
- What is the peak pulse power dissipation of the SM15T33A-E3/9AT?
The peak pulse power dissipation is 1500 W with a 10/1000 μs waveform. - What is the operating junction and storage temperature range of this component?
The operating junction and storage temperature range is -65 to +150 °C. - Is the SM15T33A-E3/9AT available in both unidirectional and bidirectional configurations?
Yes, it is available in both unidirectional and bidirectional configurations. - What is the maximum clamping voltage (VC) at IPPM (10/1000 μs) for this component?
The maximum clamping voltage is 45.7 V. - What is the package type of the SM15T33A-E3/9AT?
The package type is DO-214AB (SMC). - Is the SM15T33A-E3/9AT AEC-Q101 qualified?
Yes, it is AEC-Q101 qualified for automotive applications. - What is the typical thermal resistance, junction to ambient air, for this component?
The typical thermal resistance, junction to ambient air, is 75 °C/W. - What are the common applications of the SM15T33A-E3/9AT?
It is used in consumer, computer, industrial, automotive, and telecommunications industries to protect against voltage transients. - How does the SM15T33A-E3/9AT protect against voltage transients?
It protects against voltage transients induced by inductive load switching and lightning through its excellent clamping capability and low inductance. - What is the reverse stand-off voltage (VWM) of the SM15T33A-E3/9AT?
The reverse stand-off voltage (VWM) is 28.2 V.
