TDK Corporation's TDK presents ultra-compact TVS diodes for highly efficient ESD protection.
TDK Corporation offers a series of remarkably small TVS diodes designed to match the parameters of various ports, including the USB-C® port, and other high-speed interfaces. The USB-C ports, especially the high-speed ports (Tx/Rx) operating at speeds of up to 40 Gbit/s with USB4® Version 1, demand TVS diodes with extremely low parasitic capacitance values and low clamping voltage. The B74111U0033M060 and B74121U0033M060 are tailored for this purpose, boasting ultra-low capacitance values of 0.48 pF and 0.65 pF at 1 MHz, respectively, ensuring uncompromised signal integrity. With clamping voltages of only 3.8 V or 3.9 V and an ITLP of 8 A, these devices are engineered to handle ESD discharge voltages of up to 15 kV. Packaged in the incredibly compact WLCSP 01005 and WLCSP 0201 formats, with heights of just 100 µm and 150 µm, respectively, these TVS diodes can seamlessly integrate into USB-C SIP modules.
For the conventional USB 2.0 data bus of USB-C (D+/D-), the B74111U0055M060 and B74121U0055M060, with maximum DC voltages of up to 5.5 V, are the ideal choice. Featuring clamping voltages of 3.9 V and 4.0 V, an ITLP of 8 A, and designed to withstand ESD discharge voltages of up to 15 kV, these diodes maintain the same compact housing designs and heights as their counterparts.
In scenarios where power lines VBUS (CC/SBU) transmit up to 100 W at voltages of up to 20 V and currents of 5 A, reliable ESD protection is crucial. TDK provides the B74121G0160M060 with a maximum working voltage of 16 V and the B74121G0200M060 with a value of 20 V, both featuring clamping voltages of 23 V and 27 V, respectively, at an ITLP of 8 A. These devices offer capacitance values of 6 pF and 5 pF, along with high linearity, and are rated for ESD contact discharge voltages of 15 kV. Similar to the previously mentioned diodes, they are designed in the compact WLCSP 0201 form factor with a height of 150 µm.
Overall, complete ESD protection for USB-C requires up to three different types of TVS diodes to meet diverse requirements. In addition to USB-C, these ESD protection components can also be applied to other high-speed interfaces such as Thunderbolt, HDMI, DisplayPort, FireWire, DVI, S-ATA, or SWP/NFC. Common end devices that benefit from these protections include smartphones, tablets, notebooks, wearables, and network components.
Low clamping voltages, e.g., 3.8 V at ITLP of 8 A
Capacitance values of minimum 0.48 pF
Compact package shapes of WLCSP 01005 and WLCSP 0201
Extremely flat heights of 100 µm or 150 µm
High robustness against ESD contact discharge voltages of 15 kV
High-speed interfaces such as USB-C, Thunderbolt, HDMI, Display Port, FireWire, DVI, S-ATA, or SWP/NFC
Smartphones, tablets, notebooks, wearables, or network components
Tell us what you're after