KYOCERA AVX VCAS series MLVs qualified according to VW80808

Outstanding components for the automotive industry

The multilayer varistors of the VCAS series, the industry's first MLVs with flexible connections in automotive quality, not only fulfill the two important standards. They also stand for optimum performance in many demanding applications where maximum reliability is required. As a result, the components will certainly be used in areas other than the automotive industry.

Electronic components in the test: outstanding results

The VW80808 standard deals with the protection of electrical systems in motor vehicles against short circuits affecting the battery. The qualification now achieved is based on the following tests:

• Bending test on a 5 mm plate
• Power line tests (60,000 pulses at -55°C, +25°C and +125°C)
• Temperature cycling tests
  

The VCAS series lighting tubes with FLEXITERM connectors are designed to reliably withstand severe bending, vibration and temperature fluctuations. They have been shown to withstand mechanical bending of the circuit board of up to 5 mm and up to 3,000 temperature cycles at up to 150 °C, which significantly exceeds the AEC-Q200 test requirements of 1,000 cycles at up to 125 °C.

The test results consistently showed that even with 200% more temperature cycles at 20% higher temperatures than required for AEC Q200 qualification, the VCAS series lighting machines exhibited no PCB flex failures, including internal cracking and delamination, and no significant changes in their electrical characteristics.

The additional testing required for VW80808 qualification ensures that the VCAS series lighting tubes provide optimum performance in an extended range of demanding, high-reliability automotive applications.

Wide range of applications for KYOCERA AVX components

In addition to the automotive sector, they can also be used in industry, aerospace, drilling, the Internet of Things and consumer electronics. Suitable applications now include under-the-hood and battery cables, signal and power cables, circuits with direct power and battery connections, circuits exposed to vibration, variable temperatures and bending stresses, smart watches and other wearables, and cleaning robots.

The VCAS series assembly lines are also suitable for use in applications subject to significant temperature fluctuations, vibration, wave soldering, forced cooling, improper handling, insertion and removal of PCBs from connectors and high density PCB configurations - all of which can cause expansion, contraction, flexing and cracking of the PCB as well as separation of components mounted near the edges of the PCB, near bending zones and near large, heavy components.

Equipped with FLEXITERM and other special features

The MLVs of the VCAS series are equipped with the patented FLEXITERM soft termination technology from KYOCERA AVX. This has been used in automotive multilayer ceramic capacitors (MLCCs) for more than 15 years and is characterized by increased reliability and excellent mechanical and thermomechanical performance compared to competing technologies.

Other features include high current and energy absorption capability, super-fast response times, multiple ESD impact capability and highly reliable bi-directional overvoltage protection. The MLVs in the VCAS series offer EMI/RFI attenuation when switched off. This reduces or even eliminates the need for additional EMC capacitors. Compared to competing diode solutions, these components enable lower insertion losses, lower leakage currents and unsurpassed reliability.

Varied and versatile: features at a glance

• Four surface-mountable housing sizes (0603, 0805, 1206 and 1210)
• Operating voltages 3.3 to 85V
• Terminal voltages 14 to 165V
• Transient energies 0.1 to 4.5J
• Operating temperatures up to 150 °C
• RoHS compliant 
• Packaged on 7-inch reels to ensure compatibility with automated processing equipment
  

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