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Aluminium Electrolytic Capacitor

High purity Etched and Formed Aluminium foil with aluminium oxide dielectric barrier as the anode foil and an aluminium cathode foil are concentrically wound with a layer of condenser grade paper in between and after impregnation with electrolyte, the wound element is housed in an Aluminium can and then hermetically sealed using a rubber bung to form an Aluminium electrolytic capacitor. The most important advantage of the electrolytic capacitors are the higher capacitance ratio to dimensions when compared with other capacitors. This is principally due to microscopically thin dielectric layer, which produces a large capacitance per unit area. Over the years there have been continuous improvements in the etching technology of anode foil that has resulted in many-fold increase in the actual anode surface area resulting in reduction in capacitor size. The oxide dielectric layer has rectifier properties blocking current flow in one direction but offering low resistance in the opposite direction. Reversal of more than two volts will cause breakdown of the film and destruction of the capacitor. So Electrolytic Capacitor for AC applications are specially manufactured and marked Non-polar/AC. Others are polar Capacitors and therefore limited to DC applications.
SERIES PICTURE DESCRIPTION OPERATING TEMPERATURE RANGE WORKING VOLTAGE(VDC) CAPACITANCE (μ F) RANGE SIZE RANGE DIA X LENGTH MM BODY COLOR CATALOGUE
SA Radial lead type Standard
+85°C - 2000hrs
-40°C to +85°C for WV ≤ 250V
 -25°C to +85°C for WV >250V
6.3 ~ 500 V
0.1 ~ 22000 μF
4 x 7 to 22 x52 Orange
SD Radial lead type
+105°C - 1000hrs
Low Profile
-40°C to +105°C for WV ≤ 250V
-25°C to +105°C for WV > 250V
6.3 ~ 450 V
0.1 ~ 22000 μF
5 x 11 to 22 x 52 Orange
SE Radial lead type Standard
+105°C - 2000hrs
-40°C to +105°C for WV ≤ 250v
-25° c to+105° C for WV >250v
6.3 ~ 450 V
0.47 ~ 10000 μF
5 x 11 to 22 x 52 Orange
SZ Radial lead type low E.S.R
+85°C - 2000hrs
-40°C to +85°C for WV≤ 250V
-25°C to +85°C for WV >250V
6.3 ~ 450 V
1 ~ 22000 μF
5 x 11 to 22 x 52 Orange
SX Radial lead type low E.S.R
+105°C - 2000hrs
-40°C to +105°C for WV ≤ 250V
-25°C to +105°C for WV > 250V
10 ~ 450 V
1 ~ 10000 μF
8 x 12.5 to 22 x 52 Orange  
SG Radial lead type +105°C
Long Life-5000hrs
-40°C to +105°C for WV ≤ 250V
-25°C to +105°C for WV > 250V
16 ~ 450 V
1 ~ 4700 μF
5 x 11 to 22 x 52 Orange
SL Radial lead type +105°C
Very Long Life-8000hrs
-40°C to +105°C for WV ≤ 250V
-25°C to +105°C for WV > 250V
16 ~ 450 V
1.8 ~ 4700 μF
10 x 12.5 to 22 x 52 Orange
SN Radial lead type Bi-polar
+85°C (Nonpolar)- 2000hrs
- 40°C to +85°C 6.3 ~ 100 V
0.1 ~ 2200 μF
5 x 11 to 16 x 31 Orange
SH Radial lead type Horizontal
Correction +85°C (Nonpolar)-
2000hrs
- 40°C to +85°C 25 ~ 50 V
1 ~ 18 μF
12.5 x 21 to 18 x 41 Orange
SB Radial lead type Standard
+85°C - 2000hrs Defence application
- 40°C to +85°C 6.3 ~ 63V
0.47 ~ 6800 μF
5.5 x 11.5 to 19x 41 Orange
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