3191

The low ESR of Type 3191 capacitors makes them a great choice for output filtering in switching and audio power supplies. It's available with the capacitor element potted in place for lowest cost or secured by rill, spoon shaped dimples in the side of the can. Rilled construction offers high vibration and shock withstanding and excellent heat transfer for higher ripple current.
It has five highlights: The first one is stud mount available; The second one is high current application; The third one is industrial applications; The forth one is smoothing and filtering; The fifth one is audio power supplies. Besides, there are some specifications about it. Operating Temperature is from 40ºC to + 85ºC. Rated Voltage is 7.5 Vdc to 55 Vdc. Capacitance Range is 2700 F to 150000 F. Capacitance Tolerance are 10 to + 30%,10 to +50%,±20%. Ripple Current Multipliers : Ambient temperature: IR multiplier is 2.24 when the temperature is 45ºC. IR multiplier is 2.00 when the temperature is 55ºC. IR multiplier is 1.73 when the temperature is 65ºC.IR multiplier is 1.41 when the temperature is 75ºC. IR multiplier is1.00 when the temperature is 85ºC. Frequency: IR multiplier is 0.90 when the frequency is 60 Hz; IR multiplier is 1.00 when the frequency is 120 Hz; IR multiplier is 1.05 when the frequency is 300 Hz;IR multiplier is 1.10 when the frequency is 1000 Hz;IR multiplier is 1.15 when the frequency is faster than 10 kHz. Life Test: Endurance, 1500 h at rated voltage and 85 ºC; Capacitance is±10%; ESR is lower than 200% of limit; DCL is lower than 100% of limit. Shelf Life: Storage, 500 h at 85 ºC; Capacitance is ±10%; ESR is lower than 175% of limit; DCL is lower than 200% of limit. Vibration: 10 to 500 Hz, 0.75 mm or 10 g* if less, 3 directions, 2 h ea; Capacitance is ±5%; no visible damage or leakage; *15 g if rilled construction.
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