Overview
The SM15T39CAHE3_A/I is a surface mount transient voltage suppressor (TVS) diode from 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 ideal for use in various applications, including consumer, computer, industrial, automotive, and telecommunication systems.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Peak 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) | IFSM | 200 | A |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 to +150 | °C |
| Reverse Stand-Off Voltage | VWM | 39 V | V |
| Breakdown Voltage | VBR | 43.1 to 47.3 V | V |
| Maximum Reverse Leakage at VWM | ID | 1.0 μA | μA |
| Maximum Clamping Voltage at IPPM (10/1000 μs) | VC | See datasheet for specific values | V |
| Polarity | Bidirectional | ||
| Package | SMC (DO-214AB) |
Key Features
- Low profile package suitable for automated placement.
- Glass passivated chip junction for reliability.
- Available in unidirectional and bidirectional configurations.
- 1500 W peak pulse power capability with a 10/1000 μs waveform.
- Excellent clamping capability to protect against voltage transients.
- Low inductance design.
- Meets MSL level 1, per J-STD-020, with a maximum peak of 260 °C.
- AEC-Q101 qualified for automotive applications.
- RoHS-compliant and halogen-free options available.
- Matt tin plated leads, solderable per J-STD-002 and JESD 22-B102.
Applications
The SM15T39CAHE3_A/I is used in sensitive electronics to protect against voltage transients induced by inductive load switching and lightning. It is suitable for various sectors including:
- Consumer electronics
- Computer systems
- Industrial equipment
- Automotive systems
- Telecommunication devices
- Signal lines of sensor units
- ICs and MOSFET protection
Q & A
- What is the peak power dissipation of the SM15T39CAHE3_A/I?
The peak power dissipation is 1500 W with a 10/1000 μs waveform.
- What is the operating junction and storage temperature range?
The operating junction and storage temperature range is -65 to +150 °C.
- Is the SM15T39CAHE3_A/I AEC-Q101 qualified?
- What is the package type of the SM15T39CAHE3_A/I?
The package type is SMC (DO-214AB).
- What are the typical applications of the SM15T39CAHE3_A/I?
It is used in consumer electronics, computer systems, industrial equipment, automotive systems, telecommunication devices, and signal lines of sensor units.
- Is the SM15T39CAHE3_A/I RoHS-compliant?
- What is the maximum reverse leakage at VWM?
The maximum reverse leakage at VWM is 1.0 μA.
- What is the breakdown voltage range for the SM15T39CAHE3_A/I?
The breakdown voltage range is 43.1 to 47.3 V.
- What is the peak forward surge current rating?
The peak forward surge current rating is 200 A for a 10 ms single half sine-wave.
- What is the thermal resistance, junction to ambient air?
The typical thermal resistance, junction to ambient air, is 75 °C/W.
