Overview
The SM15T39CA-M3/57T 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 available in a low-profile SMC (DO-214AB) 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 | See datasheet for specific values | 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 | 33.3 | V |
| Breakdown Voltage (VBR) - Bidirectional | VBR | 37.1 to 41.0 | V |
| Maximum Clamping Voltage (VC) at IPPM (10/1000 μs) | VC | 53.9 | V |
| Package Type | SMC (DO-214AB) | ||
| Polarity | Bidirectional |
Key Features
- Low Profile Package: The SM15T39CA-M3/57T is housed in a compact SMC (DO-214AB) package, ideal for automated placement and space-saving designs.
- High Peak Pulse Power Capability: It offers a peak pulse power dissipation of 1500 W with a 10/1000 μs waveform.
- Excellent Clamping Capability: Provides effective voltage clamping to protect sensitive electronics from transient voltages.
- Low Inductance: Designed to minimize inductance, ensuring better performance in high-frequency applications.
- RoHS and AEC-Q101 Compliance: Available in RoHS-compliant and AEC-Q101 qualified versions, making it suitable for automotive and other stringent applications.
- High Temperature Rating: The component can operate within a junction temperature range of -65 to +150 °C.
- Flammability Rating: The molding compound meets UL 94 V-0 flammability rating.
Applications
The SM15T39CA-M3/57T is used in various applications to protect sensitive electronics against voltage transients induced by inductive load switching and lightning. These applications 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 peak pulse power dissipation of the SM15T39CA-M3/57T?
The peak pulse power dissipation is 1500 W with a 10/1000 μs waveform.
- What is the reverse stand-off voltage (VWM) of this component?
The reverse stand-off voltage (VWM) is 33.3 V.
- Is the SM15T39CA-M3/57T available in both unidirectional and bidirectional configurations?
Yes, but the specific part number SM15T39CA-M3/57T is bidirectional.
- What is the operating junction temperature range of this TVS diode?
The operating junction temperature range is -65 to +150 °C.
- Does the SM15T39CA-M3/57T meet automotive qualification standards?
Yes, it is available in AEC-Q101 qualified versions.
- What is the flammability rating of the molding compound used in this component?
The molding compound meets UL 94 V-0 flammability rating.
- What is the typical thermal resistance from junction to ambient air for this component?
The typical thermal resistance from junction to ambient air is 75 °C/W.
- Can the SM15T39CA-M3/57T be used in high-frequency applications?
Yes, it is designed with low inductance, making it suitable for high-frequency applications.
- What is the maximum clamping voltage (VC) at IPPM for this TVS diode?
The maximum clamping voltage (VC) at IPPM is 53.9 V.
- Is the SM15T39CA-M3/57T RoHS-compliant?
Yes, it is RoHS-compliant and also available in halogen-free versions.
