The SMBJ48A-TR from STMicroelectronics is a robust transient voltage suppressor (TVS) designed to protect sensitive electronic equipment from voltage spikes and transients. This device is a part of the SMBJ series and is specifically engineered to shield voltage-sensitive components from destruction or degradation. It is an ideal solution for safeguarding applications in a variety of fields, including industrial, computing, automotive, and consumer electronics.
Key Features:
- Stand-off Voltage: The SMBJ48A-TR has a stand-off voltage of 48V, which makes it suitable for protecting circuits with nominal working voltages up to this level.
- Peak Pulse Power: It offers excellent clamping capability with a peak pulse power dissipation of 600 Watts (at 10/1000 µs waveform), ensuring reliable protection against high energy transients.
- Breakdown Voltage: The breakdown voltage range is from 53.3V to 58.9V, providing a margin of safety above the stand-off voltage to prevent unwanted clamping during normal operation.
- Uni-directional Protection: As a uni-directional TVS, the SMBJ48A-TR is designed to protect against transients in one polarity, making it ideal for DC power supply applications.
- Low Leakage Current: It has a very low leakage current, which helps to minimize power loss when the device is in the standby state, thus enhancing the efficiency of the protected circuit.
- Fast Response Time: The device responds to transient events in less than 1 picosecond, providing immediate protection against voltage spikes.
- Package: Supplied in an SMB (DO-214AA) surface-mount package, the SMBJ48A-TR is designed for easy PCB layout and space-saving considerations.
- Compliance: It meets the ISO 7637-2 pulse 5a and 5b standards and is compliant with the IEC 61000-4-2 standard for ESD protection.
Applications:
The SMBJ48A-TR is versatile and can be used in a wide range of applications, including:
- Power supply lines
- Communication systems
- Automotive electronics
- Portable devices
- Microprocessor/microcontroller protection
With its ability to handle high transient power and fast response time, the SMBJ48A-TR is an excellent choice for designers looking to enhance the durability and reliability of their electronic systems.
