Electrical Characteristics www.vishay.com Vishay OS-CON Solid Aluminum Capacitors with Organic Semiconductor FREQUENCY CHARACTERISTICS (AT 25 °C) The greatest feature of the Vishay OS-CON capacitor is its excellent frequency characteristic which is nearly equal to that of a film capacitor. Using the high conductivity of an organic semiconductor with an electrolyte, and adopting the winding element for layer thinness of electrolyte, the ESR (Equivalent Series Resistance) is greatly improved, obtaining the frequency characteristic nearly to the film capacitor. 100 A = Vishay OS-CON 47 µF/16 WV Ø 0.248 x 0.386 l: 12.05" (6.3 x 9.8 l: 306 mm3) B = Al-E (Low Impedance) 47 µF/16 WV Ø 0.248 x 0.276 l: 8.58" (6.3 x 7.0 l: 218 mm3) IMPEDANCE (Ω) 10 C = Ta-Cap 47 µF/16 WV Ø 0.236 x 0.433 l: 12.24" (6.0 x 11.0 l: 311 mm3) D = Al-E (Low Impedance) 1000 µF/16 WV Ø 0.630 x 0.984 l: 197.8" (16 x 25 l: 5024 mm3) 1 B C 0.1 D A 0.01 1K 10K 100K 1M 10M 20M FREQUENCY (Hz) The chart above shows the impedance frequency characteristic of Vishay OS-CON, compared to that of other types of capacitors. The Vishay OS-CON capacitor shows a nearly ideal curve. When compared at 100 kHz of frequency, a Vishay OS-CON capacitor 47 μF and low impedance aluminum electrolytic capacitor 1000 μF nearly have the same feature. If the frequency gets higher, the capacitance ratio between the Vishay OS-CON capacitor and aluminum electrolytic capacitor becomes bigger. 100 Vishay OS-CON Rated A = 4.7 µF/25 WV B = 22 µF/6.3 WV C = 220 µF/10 WV D = 820 µF/4 WV IMPEDANCE (Ω) ESR (Ω) 10 Impedance ESR 1 A C B B A 0.1 C D D 0.01 1K 10K 100K 1M 10M 20M FREQUENCY (Hz) This chart shows the impedance and ESR frequency characteristics for each size of Vishay OS-CON capacitors. The resonance point of the Vishay OS-CON capacitor is at 100 kHz to 10 MHz. The ESR becomes about 10 m or less at 100 kHz (829 μF rating), an extremely small value. Revision: 05-Feb-14 Document Number: 90016 1 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 Electrical Characteristics www.vishay.com Vishay OS-CON TEMPERATURE CHARACTERISTICS 100.0 10.0 Al Ta ESR (Ω) 1.0 0.1 OS CR (E) CR (B) 0.01 0.001 -55 -20 0 +20 Temperature (°C) +85 +105 Equivalent Series Resistance at 100 kHz 10 μF 20 OS 10 Ta Capacitance Change (%) 0 CR (B) -10 Al -20 CR (E) -30 -40 -50 -55 -20 0 +20 Temperature (°C) +85 +105 Capacitance Change at 120 Hz 10 μF OS = Vishay OS-CON Al = AL-E Capacitor Ta = Tantalum Capacitor CR(B) = Cera Capacitor (B Type) CR(E) = Cera Capacitor (E Type) Revision: 05-Feb-14 The temperature characteristics of the Vishay OS-CON capacitor features little changes in temperature for the ESR. Since ESR is dominant at the high range of impedance (near resonance point), the ESR value greatly affects noise clearing capacity. When ESR changes little against the temperature it means that the noise clearing ability changes little against temperature as well. The Vishay OS-CON capacitor is best suited for outdoor apparatus, vehicles and machinery. Document Number: 90016 2 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 Electrical Characteristics www.vishay.com Vishay OS-CON BIAS CHARACTERISTICS OS.1 OS.2 0 Capacitance Change (%) OS.1 = Vishay OS-CON Capacitor 94SVP OS.2 = Vishay OS-CON Capacitor 94SVPD CR (B) = Cera Capacitor (B Type, 10 V, 10 μF) CR (E) = Cera Capacitor (E Type, 50 V, 10 μF) Capacitance Change at 120 Hz 10 μF -10 CR (B) CR (E) When voltage within rating is applied to the Vishay OS-CON capacitors (less than 80 % of the rated voltage is recommended) it shows a stable characteristic where the capacitance changes little. Also when regarding bias characteristics, which must be considered in using ceramic capacitors, the Vishay OS-CON capacitors can be used safely. -20 -30 0 10 20 Bias Voltage (V) 30 35 Bias Voltage Characteristics 3.5 3.37 3.0 2.67 Ripple Current (ARMS) 2.5 2.0 1.5 1.83 1.37 1.15 1.10 1.0 0.84 0.74 0.5 0.45 0.45 0.45 0.48 33 μF 16 V 47 μF 16 V 100 μF 10 V 220 μF 10 V 0 Vishay OS-CON Capacitor (SA Series) Al-E Capacitor (Low Impedance) Tantalum Capacitor (Low Impedance) Allowable Ripple Current (100 kHz at + 45 °C) When selecting a smoothing capacitor for a power supply, the allowable ripple current of the capacitor becomes one of the standard selections. The allowable value of the ripple current is decided by the generated heat of the capacitor, but its heating comes out of ESR. Since a large ESR capacitor generates larger heat value, it can not make the flow of ripple current greater. The Vishay OS-CON capacitor has a small ESR, and compared to other electrolytic capacitors, can allow far more ripple currents. Revision: 05-Feb-14 Document Number: 90016 3 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000