Overview
The SM15T33A-M3/9AT is a surface mount transient voltage suppressor (TVS) diode from 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 SM15T33A-M3/9AT is designed to protect sensitive electronics from voltage spikes and surges, making it an essential component in various industrial, automotive, and consumer applications.
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 next table | A |
| 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 | 33 V | V |
| Breakdown Voltage (VBR) | VBR | 37.5 V (unidirectional), 37.5 V (bidirectional) | V |
| Package Type | DO-214AB (SMC) | ||
| Typical Thermal Resistance, Junction to Ambient Air | RθJA | 75 | °C/W |
Key Features
- Low Profile Package: Ideal for space-constrained applications and automated placement.
- Glass Passivated Chip Junction: Ensures high reliability and stability.
- High Peak Pulse Power Capability: 1500 W with a 10/1000 μs waveform, providing robust protection against voltage transients.
- Excellent Clamping Capability: Effective in limiting voltage spikes to safe levels.
- Low Inductance: Minimizes the impact of inductive effects.
- AEC-Q101 Qualified: Available for automotive applications with the appropriate ordering code.
- Meets MSL Level 1: Per J-STD-020, with a maximum peak of 260 °C, ensuring reliability in various environmental conditions.
Applications
The SM15T33A-M3/9AT is used in a variety of applications to protect sensitive electronics against voltage transients, including:
- Industrial equipment, such as those with inductive loads and large motors.
- Automotive systems, including sensor units and control modules.
- Consumer electronics, such as computers and telecommunication devices.
- Protection of ICs, MOSFETs, and signal lines in various electronic systems.
Q & A
- What is the peak pulse power dissipation of the SM15T33A-M3/9AT?
The peak pulse power dissipation is 1500 W with a 10/1000 μs waveform.
- What is the package type of the SM15T33A-M3/9AT?
The package type is DO-214AB (SMC).
- What is the maximum operating junction temperature of the SM15T33A-M3/9AT?
The maximum operating junction temperature is 150 °C.
- Is the SM15T33A-M3/9AT AEC-Q101 qualified?
Yes, it is AEC-Q101 qualified for automotive applications.
- What is the typical thermal resistance, junction to ambient air, of the SM15T33A-M3/9AT?
The typical thermal resistance, junction to ambient air, is 75 °C/W.
- What are the common applications of the SM15T33A-M3/9AT?
Common applications include industrial equipment, automotive systems, consumer electronics, and protection of ICs and MOSFETs.
- What is the reverse stand-off voltage (VWM) of the SM15T33A-M3/9AT?
The reverse stand-off voltage (VWM) is 33 V.
- Does the SM15T33A-M3/9AT meet MSL Level 1?
Yes, it meets MSL Level 1 per J-STD-020, with a maximum peak of 260 °C.
- What is the peak forward surge current of the SM15T33A-M3/9AT?
The peak forward surge current is 200 A for a 10 ms single half sine-wave (unidirectional only).
- How does the SM15T33A-M3/9AT protect against voltage transients?
The SM15T33A-M3/9AT protects against voltage transients by clamping the voltage to a safe level, preventing damage to sensitive electronics.
