Overview
The SM15T27A-E3/9AT is a surface mount transient voltage suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division. This component is part of the SM15T series, which is designed to protect sensitive electronics from voltage transients induced by inductive load switching and lightning. The SM15T27A-E3/9AT is particularly suited for applications requiring high peak pulse power capability and excellent clamping characteristics.
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, uni-directional only) | IFSM | 200 | A |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 to +150 | °C |
| Breakdown Voltage (VBR) | VBR | 27.4 to 30.6 | V |
| Stand-Off Voltage (VWM) | VWM | 23.1 | V |
| Maximum Reverse Leakage at VWM | ID | 1.0 | μA |
| Package | SMC (DO-214AB) | ||
| Terminals | Matt tin plated leads, solderable per J-STD-002 and JESD 22-B102 |
Key Features
- Low Profile Package: Ideal for space-constrained applications and automated placement.
- Glass Passivated Chip Junction: Ensures high reliability and stability.
- 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 the impact of inductive loads.
- RoHS Compliant and AEC-Q101 Qualified: Available in commercial and automotive grades.
- High Temperature Capability: Operating junction temperature up to 150 °C.
Applications
- Protection of sensitive electronics against voltage transients induced by inductive load switching and lightning.
- Use in ICs, MOSFETs, and signal lines of sensor units.
- Consumer, computer, industrial, automotive, and telecommunication applications.
Q & A
- What is the peak pulse power dissipation of the SM15T27A-E3/9AT?
The peak pulse power dissipation is 1500 W with a 10/1000 μs waveform.
- What is the operating junction temperature range of this component?
The operating junction temperature range is -65 to +150 °C.
- Is the SM15T27A-E3/9AT RoHS compliant?
- What type of package does the SM15T27A-E3/9AT use?
The component uses an SMC (DO-214AB) package.
- What are the typical applications of the SM15T27A-E3/9AT?
It is used to protect sensitive electronics against voltage transients in consumer, computer, industrial, automotive, and telecommunication applications.
- What is the maximum reverse leakage current at the stand-off voltage?
The maximum reverse leakage current at the stand-off voltage is 1.0 μA.
- How is the polarity indicated for unidirectional types?
The polarity is indicated by a band denoting the cathode end for unidirectional types.
- What is the thermal resistance from junction to ambient air?
The typical thermal resistance from junction to ambient air is 75 °C/W.
- Can the SM15T27A-E3/9AT be used in bidirectional applications?
- What is the failure mode in an overstress condition?
The failure mode in an overstress condition is a short circuit.
