Type SF Dual, Round & Oval, Oil-Filled Motor Run Capacitors
Metallized Polypropylene
Type SF dual rated oil filled motor run capacitors made with self-heal-
ing metallized polypropylene film are commonly used in air condition-
ing, motors and compressor applications. The dual ratings in a single
can provide two capacitors - one may be used as a fan capacitor and
the other as a compressor or motor run capacitor. Three terminals
allow one terminal to act as a common while the other two are con-
nected to the individual capacitors.
The service life objective for the series is 60,000 hours of operating
life with a 94% survival rate when operated at full voltage, 60 Hz,
and rated ambient temperature. AC capacitors are frequently used
at voltages and ambient temperatures other than rated conditions.
Service life may be estimated under specific conditions of tempera-
ture and voltage by using the curves below.
Highlights
- Fault current protection up to 10,000 A
- Low energy consumption — <0.1% DF
- Self healing
- L recognized under E71645
- Meets EIA Standard EIA-456-A
- 60,000 hours life
Specifications
Capacitance Range
15–5 µF to 80–10 µF
Capacitance Tolerance
Rated Voltage
10% standard ( 6% and ꢀ% available)
ꢀ70 Vac and 440 Vac
Operating Temperature Range with Ripple
–40 ºC to 70 ºC
RoHS Compliant
Life vs. Temperature
Life vs. Voltage
Capacitance vs. Temperature
100000
4
10000
1000
2
0
–2
100
10
–4
–6
20
–20
0
40 60
100
–40
80
125
50
75
100
25
% of Rated Temperature
Temperature °C
% of Rated Voltage
Part Numbering System
SF
C
37
T
15-5
K
291
E
-F
Type
Case
AC Volt
Case Material
Cap
Tol. ±%
Can Height
VAR
RoHS
Compliant
-F = Compliant
Blank = Not
Compliant
SF
C = 1 3/4" Oval
D = 2.0" Oval
37 = 370 Vac T = Aluminum
44 = 440 Vac w/steel cover
15-5 = 15-5 µF L = ±3%
30-20 = 30-20 µF H = ±6%
50-7.5 = 50-7.5 µF K = ±10%
300 = 3.00" E = Dual 2,3,4 70 ºC
388 = 3.88" Z = Other
400 = 4.00"
S = 2.0" Round X = Other
T = 2 1/2" Round
S = Steel
Z = +10 –5% 475 = 4.75"
X = Special
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