EIA-483:1981

This method provides procedures for the measurement of effective series resistance (esr) and capacitance of multilayer ceramic capacitors from frequencies of 25 MHz to 1.25 GHz. A series connection permits the measurement of capacitance from below 1 pF to over 1 nF between frequencies of 130 MHz and 1.25 GHz. There is no maximum value of capacitance for series measurements of esr, but the determination of large values of capacitance at high frequencies suffers from inaccuracy. The esr of capacitors can be measured with this method at frequencies that exceed the self-resonant frequency of the test capacitor. A shunt connection allows the measurement of capacitance from 0 to 200 pF at frequencies from 25 to 910 MHz. Resonant Mode Frequency Range Measurable Capacitance Series Mode lambda/4 130 to 250 MHz greater than 1 nf to less than 1 pF 3lambda/4 390 to 500 MHz ' 5lambda/4 650 to 750 MHz ' 7lambda/4 910 to 1000 MHz ' 9lambda/4 1170 to 1250 MHz ' Shunt Mode lambda/4 25 to 130 MHz 200 pF to 0 pF 3lambda/4 265 to 390 MHz 100 pF to 0 pF 5lambda/4 530 to 650 MHz 30 pF to 0 pF 7lambda/4 785 to 910 MHz 30 pF to 0 pF The limits shown for frequency and capacitance for shunt measurements may be exceeded, provided the test specimen is not at or near its self-resonant frequency, and the precautions of Section 6.0 are observed.