AVX Corp. has expanded its AEC-Q200-qualified TCQ Series of automotive conductive polymer chip capacitors, first introduced in 2015, which are designed for a range of demanding automotive, industrial, and telecommunications applications. In addition to the two new case sizes for a total of five, several new capacitance and voltage (C/V) ratings, and 36 new part numbers, the TCQ Series capacitors offer twice the reliability specified in the AEC-Q200 specification.
Previously available in three miniature, low-profile case sizes — “B” (EIA Code 1210 or EIA Metric 3528-21), “D” (2917 or 7343-31), and “Y” (2917 or 7343-20) — the TCQ Series now offers “E” (2917 or 7343-43) and “U” (2924 or 7361-43) case sizes. The series also expanded to include 36 new part numbers covering a newly extended range of capacitance and voltage ratings. The series, now totaling 52 parts, offers C/V ratings from 10–470 μF and 2.5–50 V with a ±20% capacitance tolerance, which is a significant improvement over the previous range of 10–220 μF (±20%) and 4–35 V with 16 unique part numbers.
Other features of the conductive polymer chip capacitors include low DC leakage (0.1 CV), high capacitance, and stable electrical performance over the extended operating temperature range of -55°C to 125°C.
The capacitors also meet AEC-Q200 humidity bias testing requirements (Ur at 85°C and 85% RH for 1,000 hours) thanks to AVX’s materials, design, and manufacturing technologies to overcome the inherent limitations of polymer materials, resulting in reliability and stability for 2,000 hours at 125°C. This exceeds the 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. They are also 3× reflow compatible at 260°C, lead-free compatible, and RoHS compliant, and are manufactured in an IATF 16949 certified facility.
With a robust form factor, the conductive polymer chip capacitors are suited for space-constrained, harsh-environment applications including 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, said AVX.
The TCQ capacitors are supplied with pure tin terminations on 7” or 13” reels, and standard lead time is approximately 20 weeks. The series is available through AVX’s distribution channel.
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