Overview
The SM15T18CAHM3_A/I is a Transient Voltage Suppressor (TVS) diode produced by 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 particularly useful in applications where protection against inductive load switching and lightning-induced transients is crucial.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Stand-Off Voltage (VWM) | VWM | 15.3 | V |
| Breakdown Voltage (VBR) | VBR | 17.1 - 18.9 | V |
| Peak Pulse Power (PPPM) | PPPM | 1500 | W |
| Peak Pulse Current (IPPM) | IPPM | See datasheet for specific values | A |
| Maximum Clamping Voltage (VC) at IPPM (10/1000 μs) | VC | 25.2 | V |
| Power Dissipation on Infinite Heatsink | PD | 6.5 | W |
| Peak Forward Surge Current (IFSM) | IFSM | 200 | A |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 to +150 | °C |
| Package | SMC (DO-214AB) | ||
| RoHS Compliance | Yes, halogen-free | ||
| AEC-Q101 Qualified | Yes |
Key Features
- Low Profile Package: Ideal for automated placement and space-saving designs.
- Glass Passivated Chip Junction: Enhances reliability and performance.
- Available in Unidirectional and Bidirectional: Versatile for 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 operation.
- RoHS and AEC-Q101 Compliant: Suitable for automotive and other stringent applications.
- High Temperature Rating: Operating junction and storage temperature range of -65 to +150 °C.
Applications
The SM15T18CAHM3_A/I TVS diode is used in various applications to protect sensitive electronics against voltage transients. These include:
- Consumer electronics
- Computer systems
- Industrial control systems
- Automotive systems
- Telecommunication equipment
- Protection of ICs, MOSFETs, and signal lines of sensor units
Q & A
- What is the primary function of the SM15T18CAHM3_A/I TVS diode?
The primary function is to protect sensitive electronics against voltage transients induced by inductive load switching and lightning.
- What is the stand-off voltage (VWM) of the SM15T18CAHM3_A/I?
The stand-off voltage (VWM) is 15.3 V.
- What is the peak pulse power capability of the SM15T18CAHM3_A/I?
The peak pulse power capability is 1500 W with a 10/1000 μs waveform.
- Is the SM15T18CAHM3_A/I RoHS compliant?
Yes, it is RoHS compliant and halogen-free.
- What is the operating junction and storage temperature range of the SM15T18CAHM3_A/I?
The operating junction and storage temperature range is -65 to +150 °C.
- What package type does the SM15T18CAHM3_A/I come in?
The SM15T18CAHM3_A/I comes in an SMC (DO-214AB) package.
- Is the SM15T18CAHM3_A/I AEC-Q101 qualified?
Yes, it is AEC-Q101 qualified, making it suitable for automotive applications.
- What are some typical applications of the SM15T18CAHM3_A/I?
Typical applications include consumer electronics, computer systems, industrial control systems, automotive systems, and telecommunication equipment.
- What is the maximum clamping voltage (VC) at IPPM (10/1000 μs) for the SM15T18CAHM3_A/I?
The maximum clamping voltage (VC) at IPPM (10/1000 μs) is 25.2 V.
- What is the peak forward surge current (IFSM) rating of the SM15T18CAHM3_A/I?
The peak forward surge current (IFSM) rating is 200 A for a 10 ms single half sine-wave.
