Toshiba launches TVS diode that protects IoT devices

Toshiba Electronic Devices & Storage Corporation has launched “DF2B6M4BSL,” an ultra-low capacitance TVS diode for high-frequency antennas. The diode protects semiconductors and other electronic components from static electricity and noise while suppressing signal deterioration.

Electronic components in the high-frequency antennas used in radio communications, such as Wi-Fi, need to be protected by suppressing high harmonic distortion. DF2B6M4BSL delivers a total capacitance of 0.15pF (max.), the lowest Toshiba offers — about 25% lower than its existing product, DF2B6M4ASL.

The new TVS diode uses this ultra-low capacitance to suppress high harmonic distortion that affects antenna reception performance and reduces static electricity and noise that affect the components. ESD suppressors are sometimes used in high-frequency antennas, and they can be replaced by DF2B6M4BSL; TVS diodes have higher protection performance than ESD suppressors, and can reduce static-electricity voltage.

In addition to improving the reliability of high-frequency antennas, DF2B6M4BSL is also suitable for ESD protection in signal lines.

Applications
ESD protection in high-frequency antennas and high-speed signal lines in electronic equipment, such as IoT and mobile devices.

Features

Low total capacitance: Ct=0.12pF (typ.) / 0.15pF (max) @VR=0V, f=1MHz
Low harmonic distortion characteristics: f=2.4GHz, 20dBm input conditions; 2nd harmonics: -65.5dBm (Reference) 3nd harmonics: -54.4dBm (Reference) f=5.0GHz, 20dBm input conditions; 2nd harmonics: -64.7dBm (Reference); 3rd harmonics: -55.5dBm (Reference)
Low Vpeak voltage: VCL-max-peak=215V (Reference) @IEC61000-4-2 (Contact), +8kV input