New ultra-low capacitance ESD protection diodes in silicon package

New Yorker Electronics now offers Vishay’s new CLP Series of ESD Protection Diodes/EMI Filters. The series comprises three types of devices: Single-line ESD Protection Diodes, a four-line ESD Protection Diode Array and a two-channel EMI Filter.

The VBUS and VCUT Single-line ESD Diodes are contained in the ultra-compact 0.27mm x 0.3mm x 0.6mm CLP0603-2L package. They are Bidirectional and Symmetrical (BiSy) ESD protection devices which clamp positive and negative overvoltage transients to ground. Connected between the signal or data line and the ground, they give high isolation (low leakage current, low capacitance) within the defined working range. With its short leads and small package size, the diode’s line inductance is very low, enabling fast transients such as an ESD strike to be clamped with minimal overshoots or undershoots.

The four-line VBUS54FD-SD1 4-line diode is housed in the 0.27mm x 0.7mm x 1.0mm CLP1007-5L case. It has the characteristic of a Z-diode with a high ESD immunity and an extremely low capacitance. With the VBUS54FD-SD1, four high-speed data lines can be protected against transient voltage signals like ESD. Connected to the data line (pin 1, 3, and pin 4, 5) and to ground (pin 2), negative transients will be clamped close beneath the ground level whilst positive transients will be clamped close above the 5.5V working range. The clamping behaviour of the VBUS54FD-SD1 is bidirectional but asymmetrical (BiAs), and so it provides optimal protection for applications running up to 5.5V.

The VEMI256A-SD2 2-Channel EMI-Filter with ESD-Protection is developed in the ultra-compact CLP1007-5M package. It is also 0.27mm x 0.7mm x 1mm and weighs just 0.45mg. It provides a low leakage current, a line resistance of RS = 60Ohm and a typical cut off frequency of f3dB = 60 MHz.

The entire series offers an operating range of ±3.3V to ± 15V with a low leakage current of less than 0.05µA and low capacitance of under 0.4pF. The operating temperature range is between -55C and +150C, which is excellent for smartphones, digital cameras, gaming systems, wearables and automotive devices. They are RoHS compliant and use lead-free terminations. With the very low capacitance of the VBUS03B1-SD0, it can also be utilised for high-speed data ports like HDMI, USB 3.0 or Thunderbolt.