Rev. 7a

Surface Mount Aluminum

Electrolytic Capacitors

MERITEK

SRF Series

(High R.C., Low E.S.R.)

RoHS

 High Ripple Current, Low E.S.R.

 Load Life : 105°C 1000~2000 hours

 For high density mounting

Item

Characteristic

Operation Temperature Range

-55 ~ +105°C

Rated Working Voltage

6.3 ~ 50VDC

Capacitance Tolerance

(120Hz 20°C)

±20%(M)

Leakage Current

(20°C)

I ≤0.01CV or 3 ( µA )

*Whichever is greater after 2 minutes

I: Leakage Current ( µA)

C: Rated Capacitance ( µF)

V: Working Voltage (V)

Surge Voltage

(20°C)

W.V.

6.3

10

16

25

35

50

S.V.

8

13

20

32

44

63

Dissi

pation Factor (tan δ)

(120Hz 20°C)

Add 0.02 per 1000µF for more than 1000 µF

W.V.

6.3

10

16

25

35

50

tan

δ

Φ4~ Φ6.3

0.24

0.20

0.16

0.14

0.12

0.12

Φ8~ Φ10

0.28

0.24

0.20

0.16

0.14

0.14

Low Temperature Stability

Impedance ratio at 120Hz

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)

Resistance to Soldering Heat

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.

Capacitance Change

≤ ±10% of initial value

Dissipation Factor

≤ initial specified value

Leakage current

≤ initial specified value

SRF

50V

221

M

J

102

Meritek Series

Voltage

Capacitance

Capacitance expressed in microfarads (μF).

First two digits are significant figures.

Third digit denotes number of zeros.

'R' d

enotes 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

Case Diameter Code

Φ D

D

Φ 4.0

E

Φ 5.0

F

Φ 6.3

H

Φ 8.0

J

Φ 10.0