MLV qualified to OPEN Alliance standards for automotive ethernet applications

KYOCERA AVX extends its AntennaGuard range of proven, high-performance, and ultralow-capacitance products with two new 0402 MLVs that meet IEEE 100BASE-T1 and 1000BASE-T1 testing demands.

The new ASPGuard Series of MLVs provide small, ultralow-profile, surface-mount packages optimised for high-density designs and display high current and energy handling capabilities, bidirectional overvoltage protection, super-fast, sub-nanosecond response times, and multi-strike capabilities. They also offer EMI/RFI attenuation in their off state, which can decrease or even eradicate the requirement for further EMC capacitors, and provide lower insertion loss, lower leakage current, and unrivalled reliability compared to competing diode solutions. Also, they are qualified to OPEN Alliance standards for automotive Ethernet applications and AEC-Q200.

Suitable applications for the series include automotive Ethernet networks, IoT devices, industrial automation and control systems, robotics, sensors, RF and optical circuits, high-speed data lines, Bluetooth devices, antennas, radar, and other capacitance-sensitive, high-density applications in the automotive, industrial, and consumer electronics markets.

Offered in ultraminiature 0402 and 0603 case sizes with maximum respective heights of only 0.5±0.10mm and 0.8±0.15mm, this series of MLVs are rated for working voltages ranging from 18–70VDC, capacitance values extending from only 1.5–4.7pF, energy transients spanning 0.02–0.04J, 1–3A of peak current, and operating temperatures from -55C and as high as +150C. The series also provides up to 25kV of ESD protection per IEC 61000-4-2 and meets 48VDC jump start requirements.

Currently, the new series qualified to the OPEN Alliance standard are only offered in the 0402 package. The first (VCAS04AP701R5YAT) is rated for 70VDC and 1.55pF with a ±0.13pF capacitance tolerance and intended for usage in 1000BASE-T1 Gigabit Ethernet applications, while the second (VCAS04AP704R7LAT) is rated for 70VDC and 4.7pF with a ±1pF capacitance tolerance and designed for usage in 100BASE-T1 (100Mb/s) automotive Ethernet applications.

“As a member of the OPEN Alliance special interest group dedicated to encouraging the widespread standardization and adoption of single-pair automotive Ethernet solutions, we are excited to expand our existing portfolio of field-proven, AEC-Q200-qualified electronic components to better support a growing range of Ethernet-based automotive applications,” said John Gallipeau, senior field application engineer for Circuit Protection at KYOCERA AVX. “Our new ASPGuard Series multilayer varistors meet stringent IEEE 100BASE-T1 and 1000BASE-T1 testing specifications, require minimal board space, and exhibit higher transient voltage handling capabilities and lower capacitance, insertion loss, and leakage than competing diode solutions.”