Overview
The SM15T18AHM3/H is a transient voltage suppressor (TVS) diode produced by 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 SM15T18AHM3/H is available in a surface mount DO-214AB (SMC) package, making it ideal for automated placement in various electronic 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 | 59.5 | A |
| Reverse Stand-Off Voltage (VWM) | VWM | 15.3 | V |
| Breakdown Voltage (VBR) | VBR | 17.1 - 18.9 | V |
| Clamping Voltage (VC) at IPPM (10/1000 μs) | VC | 25.2 | V |
| Maximum Reverse Leakage at VWM (ID) | ID | 1.0 | μA |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 to +150 | °C |
| Peak Forward Surge Current (8.3 ms single half sine-wave) | IFSM | 200 | A |
| Power Dissipation on Infinite Heatsink at TA = 50 °C | PD | 6.5 | W |
| Package Type | DO-214AB (SMC) |
Key Features
- Low Profile Package: Ideal for space-constrained applications.
- Automated Placement: Suitable for high-volume manufacturing.
- Glass Passivated Chip Junction: Ensures reliability and stability.
- Unidirectional and Bidirectional Options: Available to meet various application needs.
- 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 interference and ensures efficient performance.
- AEC-Q101 Qualified: Suitable for automotive applications.
- MSL Level 1 Compliance: Meets J-STD-020 standards with a maximum peak of 260 °C.
Applications
- Protection Against Voltage Transients: In sensitive electronics, ICs, MOSFETs, and signal lines of sensor units.
- Consumer Electronics: Protects against inductive load switching and lightning-induced transients.
- Computer and Industrial Systems: Ensures reliability in high-voltage transient environments.
- Automotive Systems: AEC-Q101 qualified for use in automotive applications.
- Telecommunication Systems: Protects against voltage transients in communication equipment.
Q & A
- What is the peak pulse power dissipation of the SM15T18AHM3/H?
The peak pulse power dissipation is 1500 W with a 10/1000 μs waveform.
- What is the clamping voltage of the SM15T18AHM3/H?
The clamping voltage at IPPM (10/1000 μs) is 25.2 V.
- What is the operating junction and storage temperature range of the SM15T18AHM3/H?
The operating junction and storage temperature range is -65 to +150 °C.
- Is the SM15T18AHM3/H suitable for automotive applications?
- What is the package type of the SM15T18AHM3/H?
The package type is DO-214AB (SMC).
- What are the typical applications of the SM15T18AHM3/H?
It is used for protection against voltage transients in consumer electronics, computer and industrial systems, automotive systems, and telecommunication systems.
- What is the maximum reverse leakage at VWM for the SM15T18AHM3/H?
The maximum reverse leakage at VWM is 1.0 μA.
- Does the SM15T18AHM3/H meet MSL level 1 compliance?
- What is the peak forward surge current of the SM15T18AHM3/H?
The peak forward surge current is 200 A for an 8.3 ms single half sine-wave.
- What is the power dissipation on an infinite heatsink at TA = 50 °C for the SM15T18AHM3/H?
The power dissipation is 6.5 W.
