Toshiba TVS diode has capacitance of 0.12pF

Author: EIS Release Date: Mar 7, 2022

Toshiba has started shipping  a low capacitance TVS diode.

 

The product will be useful  in protecting electronic components such as semiconductors from static electricity and noise while suppressing signal quality deterioration within high-frequency antennas used for electronic equipment.

 

The DF2B6M4BSL TVS diode features a total capacitance of just 0.12pF (0.15pF max.), which is the lowest for any such Toshiba device, representing an (approximate) 25% reduction in capacitance when compared to the existing Toshiba product (DF2B6M4ASL).

Within high-frequency antennas for radio communications such as Wi-Fi, the original signal quality must be kept, by avoiding any harmonic distortion caused by the added TVS diode capacitance.

 

The new DF2B6M4BSL with its low capacitance shows a very fast response in suppressing high voltage spikes without affecting the original data signal quality.

 

When the DF2B6M4BSL is used at 5.0GHz, a common frequency in Wi-Fi applications, with a 20dBm input, the second harmonic is -64.7dB while the third is -55.5dB.

 

The device is therefore suitable for ESD protection of high-frequency antennas.