Overview
The SM15T12A-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, designed to provide protection against voltage transients in sensitive electronics. It is ideal for use in various applications, including consumer, computer, industrial, automotive, and telecommunication systems.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Peak Pulse Power Dissipation (10/1000 μs waveform) | PPPM | 1500 | W |
| Power Dissipation on Infinite Heatsink (TA = 50 °C) | PD | 6.5 | W |
| Peak Pulse Current (10/1000 μs waveform) | IPPM | See next table | A |
| Peak Forward Surge Current (10 ms single half sine-wave, uni-directional only) | IFSM | 200 | A |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 to +150 | °C |
| Reverse Stand-Off Voltage (VWM) | VWM | 10.2 | V |
| Breakdown Voltage (VBR) | VBR | 11.4 to 12.6 | V |
| Maximum Clamping Voltage (VC) at IPPM (10/1000 μs) | VC | 16.7 | V |
| Package Type | SMC (DO-214AB) | ||
| Typical Thermal Resistance, Junction to Ambient Air | RθJA | 75 | °C/W |
Key Features
- Low Profile Package: Ideal for space-constrained applications.
- Ideal for Automated Placement: Suitable for high-volume manufacturing processes.
- Glass Passivated Chip Junction: Enhances reliability and performance.
- High Peak Pulse Power Capability: 1500 W with a 10/1000 μs waveform.
- Excellent Clamping Capability: Effective in protecting against voltage transients.
- Low Inductance: Minimizes the impact of inductive switching.
- AEC-Q101 Qualified: Available for automotive applications with the appropriate ordering code.
- Meets MSL Level 1: Compliant with J-STD-020, with a maximum peak of 260 °C.
Applications
The SM15T12A-M3/9AT is used in various applications to protect sensitive electronics against voltage transients. These include:
- Consumer electronics
- Computer systems
- Industrial control systems
- Automotive systems
- Telecommunication systems
- Protection of ICs, MOSFETs, and signal lines of sensor units
- Protection against switching transients induced by large coils or industrial motors
Q & A
- What is the peak pulse power dissipation of the SM15T12A-M3/9AT?
The peak pulse power dissipation is 1500 W with a 10/1000 μs waveform.
- What is the maximum operating junction temperature of this component?
The maximum operating junction temperature is 150 °C.
- What package type does the SM15T12A-M3/9AT use?
The package type is SMC (DO-214AB).
- Is the SM15T12A-M3/9AT AEC-Q101 qualified?
Yes, it is AEC-Q101 qualified for automotive applications with the appropriate ordering code.
- 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 SM15T12A-M3/9AT?
Common applications include consumer electronics, computer systems, industrial control systems, automotive systems, and telecommunication systems.
- How does the SM15T12A-M3/9AT protect against voltage transients?
It protects against voltage transients through its high peak pulse power capability and excellent clamping capability.
- What is the maximum peak forward surge current for the SM15T12A-M3/9AT?
The maximum peak forward surge current is 200 A for a 10 ms single half sine-wave.
- Is the SM15T12A-M3/9AT suitable for automated placement?
Yes, it is ideal for automated placement due to its low profile package.
- What is the reverse stand-off voltage (VWM) of the SM15T12A-M3/9AT?
The reverse stand-off voltage (VWM) is 10.2 V.
