SRF Datasheet, PDF (1/4 Pages) MERITEK ELECTRONICS CORPORATION – Load Life : 105C 1000~2000 hours

Surface Mount Aluminum
Electrolytic Capacitors
FEATURES
 High Ripple Current, Low E.S.R.
 Load Life : 105°C 1000~2000 hours
 For high density mounting
SRF Series
(High R.C., Low E.S.R.) _MERITEK
RoHS
SPECIFICATIONS
Item
Characteristic
Operation Temperature Range
-55 ~ +105°C
Rated Working Voltage
6.3 ~ 50VDC
Capacitance Tolerance
(120Hz 20°C)
±20%(M)
Leakage Current
I ≤0.01CV or 3 ( µA )
(20°C)
*Whichever is greater after 2 minutes
I: Leakage Current ( µA)
C: Rated
Capacitance ( µF)
V: Working Voltage (V)
Surge Voltage
(20°C)
W.V.
S.V.
6.3
10
16
25
35
50
8
13
20
32
44
63
Add 0.02 per 1000µF for more than 1000 µF
Dissipation Factor (tan δ)
W.V.
6.3
10
16
25
35
50
(120Hz 20°C)
Φ4~ Φ6.3
0.24
0.20
0.16
0.14
0.12
0.12
tan δ
Φ8~ Φ10
0.28
0.24
0.20
0.16
0.14
0.14
Impedance ratio at 120Hz
Low Temperature Stability
Rated Voltage (V)
6.3
10
16
25
35
50
-25°C / +20°C
3
2
2
2
2
2
-55°C / +20°C
5
4
4
3
3
3
Load Life
After hours (ΦD ≤ 6.3mm 1000 hours, ΦD ≥ 8mm 2000 hours) application of W.V. and +105°C
ripple current value, the capacitor shall meet the following limits.
(DC + ripple peak voltage ≤ rate working voltage)
Capacitance Change ≤ ±25% of initial value
Dissipation Factor ≤ 200% of initial specified value
Leakage current
≤ initial specified value
Shelf Life
At +105°C, no voltage application after 1000 hours, the capacitor shall meet the limits for load
life characteristics. (With voltage treatment)
Capacitors placed on a 250°C hot plate for 30 seconds with their electrode terminals facing
downward will fulfill the following conditions after being cooled to room temperature.
Resistance to Soldering Heat
Capacitance Change ≤ ±10% of initial value
Dissipation Factor ≤ initial specified value
Leakage current
≤ initial specified value
PART NUMBERING SYSTEM
SRF 50V 221 M
Meritek Series
Voltage
Capacitance
Capacitance expressed in microfarads (μF).
First two digits are significant figures.
Third digit denotes number of zeros.
'R' denotes decimal point for values less than 10 μF
Tolerance
M=±20%
Case Diameter Code
Case Height (mm)
The third digit denotes the first decimal place
For example, 102 = 10.2mm
J 102
Case Diameter Code
D
E
F
H
J
ΦD
Φ 4.0
Φ 5.0
Φ 6.3
Φ 8.0
Φ 10.0
Rev. 7a