Overview
The SM15T22AHM3_A/H 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. The SM15T22AHM3_A/H is specifically tailored for high-reliability applications, including automotive, industrial, computing, and telecommunication systems.
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 specific table for detailed values | A |
| Stand-Off Voltage (VWM) | VWM | 18.8 | V |
| Breakdown Voltage (VBR) | VBR | 22.1 - 24.5 | V |
| Maximum Clamping Voltage (VC) at IPPM (10/1000 μs) | VC | 30.8 | V |
| Power Dissipation on Infinite Heatsink at TA = 50 °C | PD | 6.5 | W |
| Peak Forward Surge Current (10 ms single half sine-wave) | IFSM | 200 | A |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 to +150 | °C |
| Polarity | Bidirectional | ||
| Package | SMC (DO-214AB) |
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.
- Halogen-free and RoHS-compliant.
- Matte tin plated leads, solderable per J-STD-002 and JESD 22-B102.
Applications
The SM15T22AHM3_A/H is used in various applications to protect sensitive electronics against voltage transients. These include:
- Protection of ICs, MOSFETs, and signal lines in consumer electronics.
- Industrial control systems and motor drives.
- Automotive systems requiring high reliability and robust transient protection.
- Telecommunication equipment and sensor units.
Q & A
- What is the peak pulse power dissipation of the SM15T22AHM3_A/H?
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 (VWM) is 18.8 V. - Is the SM15T22AHM3_A/H AEC-Q101 qualified?
Yes, it is AEC-Q101 qualified, making it suitable for automotive applications. - What is the operating junction and storage temperature range?
The operating junction and storage temperature range is -65 to +150 °C. - What type of package does the SM15T22AHM3_A/H come in?
The package is SMC (DO-214AB). - Is the SM15T22AHM3_A/H RoHS-compliant and halogen-free?
Yes, it is both RoHS-compliant and halogen-free. - What is the maximum clamping voltage at IPPM (10/1000 μs)?
The maximum clamping voltage at IPPM (10/1000 μs) is approximately 30.8 V. - What is the peak forward surge current rating?
The peak forward surge current rating is 200 A for a 10 ms single half sine-wave. - What are the typical applications of the SM15T22AHM3_A/H?
Typical applications include protection of ICs, MOSFETs, and signal lines in consumer electronics, industrial control systems, automotive systems, and telecommunication equipment. - What is the thermal resistance, junction to ambient air, for this component?
The typical thermal resistance, junction to ambient air, is 75 °C/W.
