Thin film chip capacitors for signal and power applications

13th February 2017
Source: AVX
Posted By : Lanna Cooper
Thin film chip capacitors for signal and power applications

 

A series of SMD thin film chip capacitors especially designed to meet demanding performance specifications in automotive signal and power applications, has been released by AVX.

Qualified to AEC-Q200, AVX’s automotive grade Accu-P series capacitors deliver tight tolerances (down to ±0.01pF), in addition to repeatable performance, low ESR and high Q at high frequencies (including VHF, UHF, and RF bands), and high stability with respect to temperature, time, frequency and voltage variation when compared to ceramic capacitor technologies.

Based on thin film technology and materials, the new automotive grade Accu-P series capacitors are also subjected to a litany of test and quality control procedures in accordance with ISO 9001, CECC, IECQ, and USA MIL, including on-line process control procedures, accelerated life, dampness, and heat testing, and final quality inspections for capacitance, proof voltage, IR and breakdown voltage distribution, temperature coefficient, solderability, and dimensional, mechanical, and temperature stability, which makes them suitable for use in automotive signal and power applications that require high accuracy, such as: in-vehicle and vehicle-to-vehicle communications systems, vehicle location and alarm systems, GPS, in-cabin wireless LANs, and mobile communications including navigation, traffic information, and connected security systems.

“Designed to exhibit ideal performance characteristics in high frequency signal and power applications, Accu-P series capacitors virtually eliminate the variances in dielectric quality, electrode conductivity, and physical size that are inherent to ceramic capacitor technologies,” said Larry Eisenberger, Principal Technical Marketing Engineer, AVX. “Named for the extreme accuracy they deliver in even demanding applications, automotive grade Accu-P series SMD thin film chip capacitors feature high-purity electrodes for very low and repeatable ESR; high-purity, low-K dielectric for a high breakdown field, high IR, and low losses to frequencies above 40GHz; and very tight dimensional control for uniform unit-to-unit inductance.”

Automotive grade Accu-P series capacitors are currently available in three standard case sizes (0402, 0603, and 0805), six rated voltages (10, 16, 25, 50, 100, and 200V), and two dielectric temperature coefficients (0±30ppm/°C and 0±60ppm/°C) with capacitance values spanning 0.05pF to 68pF, and capacitive tolerances from 0.01pF to 5%. Rated for use in operating temperatures spanning -55 to 125°C, the ruggedly constructed series also offers four termination compositions, including RoHS compliant and lead-free compatible options, and nickel/solder-coated terminations that provide excellent solderability and leach resistance.

Designed for soldering onto flexible or alumina circuit boards, automotive grade Accu-P series capacitors can withstand the time and temperature profiles used in both wave and reflow soldering methods. Shipped on 7” or 13” reels, the components should be handled with plastic-tipped tweezers, vacuum pick-ups, or other pick-and-place machinery. Lead-time for the series is currently ten weeks.

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