Type 3191 Aluminum Electrolytic, Screw Terminals, Switching and Audio Output
Screw Terminal Capacitors for Power Output Filtering
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 with-
standing and excellent heat transfer for higher ripple
current.
Outline Drawing
Specifications
Highlights
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Stud mount available
High current application
Industrial applications
Smoothing and filtering
Audio power supplies
–40 to + 85 ºC
7.5 Vdc to 55 Vdc
Operating Temperature:
Rated Voltage:
2700 µF to 150000 µF
–10 to + 30%; –10 to +50%; ±20%
Capacitance Range:
Capacitance Tolerance:
Ripple Current Multipliers
Ambient Temperature
Temperature
IR Multiplier
45 ºC
2.24
55 ºC
2.00
65 ºC
1.73
75 ºC
1.41
85 ºC
1.00
Frequency
Frequency 60 Hz
IR Multiplier 0.90
120 Hz
1.00
300 Hz 1000 Hz ≥10 Khz
1.05 1.10 1.15
Endurance, 1500 h at rated voltage and 85 ºC
Δ Capacitance: ±10%
ESR ≤ 200% of limit
DCL ≤ 100% of limit
Storage, 500 h at 85 ºC
Δ Capacitance: ±10%
ESR ≤ 175% of limit
DCL ≤ 200% of limit
10 to 500 Hz, 0.75 mm or 10 g* if less,
3 directions, 2 h ea
Life Test:
Shelf Life:
Vibration:
Δ Capacitance: ±5%
no visible damage or leakage
*15 g if rilled construction
Complies with the EU Directive
2002/95/EC requirement restricting
the use of Lead (Pb), Mercury (Hg),
Cadmium (Cd), Hexavalent chromium
(Cr(VI)), PolyBrominated Biphenyls
(PBB) and PolyBrominated Diphenyl
Ethers (PBDE).
CDM Cornell Dubilier • 140 Technology Place. • Liberty, SC • 29657 • Phone: (864)843-2277 • Fax: (864)843-3800 • www.cde.com