Overview
The SM6T39CAHE3_A/I is a surface-mount transient voltage suppressor (TVS) from Vishay General Semiconductor - Diodes Division. This component is part of the SM6T series, known for its high reliability and robust protection against voltage transients. The SM6T39CAHE3_A/I is specifically designed for bidirectional applications and is AEC-Q101 qualified, making it suitable for automotive and other demanding environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Working Voltage (VWM) | 33.3 | V |
| Breakdown Voltage (VBR) | 37.1 - 41.0 | V |
| Clamping Voltage (VC) | 69.7 | V |
| Peak Pulse Power (PPPM) | 600 | W |
| Peak Pulse Current (IPPM) | See datasheet for specific values | A |
| Power Dissipation (PD) | 5.0 | W |
| Operating Junction Temperature (TJ) | -65 to +150 | °C |
| Package | SMB (DO-214AA) | |
| Polarity | Bidirectional |
Key Features
- Low profile package ideal for automated placement
- Glass passivated chip junction for enhanced reliability
- Available in bidirectional configuration with 'CA' suffix
- 600 W peak pulse power capability with a 10/1000 μs waveform
- Excellent clamping capability and low inductance
- 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
Applications
The SM6T39CAHE3_A/I is used in various sensitive electronics to protect against voltage transients induced by inductive load switching and lightning. Common applications include:
- Automotive systems
- Industrial control systems
- Consumer electronics
- Computer systems
- Telecommunication equipment
- Protection of ICs, MOSFETs, and signal lines of sensor units
Q & A
- What is the primary function of the SM6T39CAHE3_A/I?
The primary function is to protect sensitive electronics from voltage transients and surges.
- What is the peak pulse power capability of the SM6T39CAHE3_A/I?
The component can handle up to 600 W peak pulse power with a 10/1000 μs waveform.
- Is the SM6T39CAHE3_A/I suitable for automotive applications?
Yes, it is AEC-Q101 qualified, making it suitable for automotive use.
- What is the operating junction temperature range of the SM6T39CAHE3_A/I?
The operating junction temperature range is -65 to +150 °C.
- What type of package does the SM6T39CAHE3_A/I use?
The component uses an SMB (DO-214AA) package.
- Is the SM6T39CAHE3_A/I RoHS-compliant?
Yes, it is RoHS-compliant and also available in halogen-free versions.
- What are the typical applications of the SM6T39CAHE3_A/I?
It is used in automotive, industrial, consumer electronics, computer systems, and telecommunication equipment.
- How does the SM6T39CAHE3_A/I protect against voltage transients?
It protects by clamping the voltage to a safe level, preventing damage to sensitive components.
- What is the significance of the 'CA' suffix in the part number?
The 'CA' suffix indicates that the device is bidirectional.
- Does the SM6T39CAHE3_A/I meet any specific industry standards?
Yes, it meets MSL level 1, per J-STD-020, and is AEC-Q101 qualified.
