New TCQ Series Automotive Conductive Capacitors Released for Increased Reliability in Automotive, Industrial, and Telecommunication Applications


ByRajni Setia 0

TCQ Series Automotive Conductive Capacitors

Expanding the TCQ Series Automotive Conductive Polymer Chip Capacitors, AVX Corporation has introduced two new case sizes for increased reliability in automotive, industrial, and telecommunication applications. The capacitors in the series were previously available in just three miniature, low-profile case sizes viz. “B” (EIA Code 1210 or EIA Metric 3528-21), “D” (2917 or 7343-31), and “Y” (2917 or 7343-20). The new capacitors added to the lineup come in “E” (2917 or 7343-43) and “U” (2924 or 7361-43) case sizes.

Additionally, the series has been expanded to include 36 new part numbers covering a newly extended range of capacitance and voltage ratings. It now offers 52 unique part numbers with C/V ratings spanning 10–470μF and 2.5–50V with a ±20% capacitance tolerance, which is a significant improvement over the previous range of 10–220μF (±20%) and 4–35V with just 16 unique part numbers.

The AVX’s TCQ series capacitors have a compact and robust form factor that’s ideally suited for space-constrained, harsh-environment applications like body electronics, cabin controls, comfort and infotainment systems, aftermarket automotive electronics, DC/DC converters, and coupling/decoupling, and are equipped with conductive polymer electrodes that enable a benign failure mode under recommended use conditions.

The capacitors from AVX exhibit low DC leakage (0.1CV), high capacitance, and stable electrical performance in operating temperatures extending from -55°C to +125°C. Besides, they satisfy AEC-Q200 humidity bias testing requirements (Ur at 85°C and 85% RH for 1,000 hours) due to materials, design, and manufacturing innovations AVX employed to overcome the inherent limitations of polymer materials delivering exceptional endurance and stability for 2,000 hours at 125°C, exceeding the already-stringent AEC-Q200 operational life requirement by 100%.

The TCQ Series capacitors exhibit basic reliability of 1% per 1,000 hours at 85°C and rated voltage with 60% confidence. Additionally, they are 3x reflow compatible at 260°C, lead-free compatible, and RoHS compliant, and are manufactured in an IATF 16949 certified facility. Parts are supplied with pure tin terminations on 7” or 13” reels, and the standard lead-time is approximately 20 weeks.

Features of TCQ Series Capacitors

  • Conductive Polymer Electrode
  • Benign Failure Mode Under Recommended Use Conditions
  • Robust Design for Automotive Applications
  • Meets Requirements of AEC-Q200
  • Humidity 85°C/85%RH, Vr, 1000 hours
  • Basic Reliability 1%/1000hrs@85°C Vr with 60% Confidence Level
  • -55 to +125°C Operation Temperature
  • Full Voltage Range: 2.5-50V
  • DCL 0.1 CV
  • 3x Reflow 260°C Compatible
  • 100% Surge Current Tested

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