Overview
The SM15T33A-E3/57T 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 various electronic systems. The SM15T33A-E3/57T is characterized by its high peak pulse power capability, low profile package, and suitability for automated placement, making it an ideal choice for protecting sensitive electronics in consumer, computer, industrial, automotive, and telecommunication applications.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Peak Pulse Power Dissipation (10/1000 μs waveform) | PPPM | 1500 | W |
| Reverse Stand-Off Voltage (VWM) | VWM | 31.4 to 34.6 | V |
| Maximum Clamping Voltage (VC) at IPPM (10/1000 μs) | VC | 43.6 to 48.2 | V |
| Maximum Clamping Voltage (VC) at IPPM (8/20 μs) | VC | 51.1 to 56.7 | V |
| Maximum Reverse Leakage at VWM (ID) | ID | 1.0 | μA |
| Peak Pulse Current (IPPM) | IPPM | See datasheet for specific values | A |
| Maximum Junction Temperature (TJ max) | TJ max | 150 | °C |
| Package Type | - | DO-214AB (SMC) | - |
Key Features
- Low Profile Package: Ideal for space-constrained applications and automated placement.
- High Peak Pulse Power Capability: 1500 W peak pulse power dissipation with a 10/1000 μs waveform.
- Glass Passivated Chip Junction: Ensures reliable operation and high durability.
- Available in Unidirectional and Bidirectional Configurations: Suitable for various protection needs.
- Low Inductance: Minimizes the impact of inductive effects in high-frequency applications.
- AEC-Q101 Qualified: Suitable for automotive applications with the appropriate ordering code.
- Meets MSL Level 1, per J-STD-020: Can withstand high reflow temperatures up to 260 °C.
Applications
The SM15T33A-E3/57T is used in various applications to protect sensitive electronics against voltage transients. These include:
- Protection against voltage transients induced by inductive load switching and lightning in ICs, MOSFETs, and signal lines of sensor units.
- Consumer electronics: Protects against transient voltages in consumer devices.
- Computer systems: Ensures protection of computer components from transient voltages.
- Industrial applications: Protects industrial equipment from transient voltages caused by large coils or industrial motors.
- Automotive systems: Qualified to AEC-Q101 standards, making it suitable for automotive applications.
- Telecommunication systems: Protects telecommunication equipment from transient voltages.
Q & A
- What is the peak pulse power dissipation of the SM15T33A-E3/57T?
The peak pulse power dissipation is 1500 W with a 10/1000 μs waveform.
- What is the reverse stand-off voltage (VWM) range for the SM15T33A-E3/57T?
The reverse stand-off voltage (VWM) range is 31.4 to 34.6 V.
- What is the maximum clamping voltage (VC) at IPPM for the SM15T33A-E3/57T?
The maximum clamping voltage (VC) at IPPM (10/1000 μs) is 43.6 to 48.2 V, and for an 8/20 μs waveform, it is 51.1 to 56.7 V.
- What is the maximum junction temperature (TJ max) for the SM15T33A-E3/57T?
The maximum junction temperature (TJ max) is 150 °C.
- What package type is the SM15T33A-E3/57T available in?
The SM15T33A-E3/57T is available in the DO-214AB (SMC) package type.
- Is the SM15T33A-E3/57T suitable for automotive applications?
Yes, it is AEC-Q101 qualified, making it suitable for automotive applications with the appropriate ordering code.
- What are the typical thermal resistances for the SM15T33A-E3/57T?
The typical thermal resistance from junction to ambient air (RθJA) is 75 °C/W, and from junction to leads (RθJL) is 15 °C/W.
- What is the maximum reverse leakage current at VWM for the SM15T33A-E3/57T?
The maximum reverse leakage current at VWM (ID) is 1.0 μA.
- Can the SM15T33A-E3/57T be used in high-frequency applications?
Yes, it has low inductance, which minimizes the impact of inductive effects in high-frequency applications).
- How does the SM15T33A-E3/57T perform in terms of reflow temperatures?
The SM15T33A-E3/57T meets MSL Level 1, per J-STD-020, and can withstand reflow temperatures up to 260 °C).
