t520 series ? ko-cap ? kemet organic capacitor low esr tantalum chip capacitor with polymer electrode kemet introduces new ratings to its popular t520 series kemet organic - ko - capacitor. the ko-cap is a tantalum capacitor, with ta anode and ta 2 o 5 dielectric. however, a conductive, organic, polymer replaces the mno 2 as the cathode plate of the capacitor. this results in very low esr and improved cap retention at high frequency. the ko-cap also exhibits a benign failure mode, which eliminates the ignition failures that can occur in standard tantalum types. note also that ko-caps may be operated at voltages up to 80% of rated voltage with equiv - alent or better reliability than standard tantalums operated at 50% of rated voltage. the new t520 series captures the best features of multilayer ceramic caps (low esr and high frequency cap retention), aluminum elec - trolytics (benign failure mode), and proven solid tantalum technology (volumetric efficiency, surface mount capability, and no wearout mecha - nism). the ko-cap can reduce component counts, eliminate through-hole assembly by replacing cumbersome leaded aluminum capacitors, and offer a more cost effective solution to high-cost high-cap ceramic capacitors. these benefits allow the designer to save both board space and money. the t520 operating temperature range is -55oc to +105oc. above 85oc, the capacitor voltage rating drops to 0.8 times rated voltage at 105oc. case size kemet eia l w h k 0.20 f 0.1 s 0.3 x(ref) t(ref) a(min) g(ref) e(ref) b 3528-21 3.5 0.2 2.8 0.2 1.9 0.2 1.1 2.2 0.8 0.10 0.10 0.13 1.1 1.8 2.2 v 7343-20 7.3 0.3 4.3 0.3 1.9 0.1 1.1 2.4 1.3 0.05 0.13 3.8 3.5 3.5 d 7343-31 7.3 0.3 4.3 0.3 2.8 0.3 1.5 2.4 1.3 0.10 0.10 0.13 3.8 3.5 3.5 x 7343-43 7.3 0.3 4.3 0.3 4.0 0.3 2.3 2.4 1.3 0.10 0.10 0.13 3.8 3.5 3.5 dimensions - millimeters specification sheet t520 ratings & part number reference cap dc leakage esr m w ripple current a rms f case kemet a +25oc df % 120 hz 100khz 25o 100 khz max (20%) size part number max + 25oc max max 25oc 85oc 105oc 100 b/3528-21 t520b107m003as 30 8% 70 1.10 0.99 0.44 330 v/7343-20 t520v337m003as 99 10% 25 2.20 2.00 0.90 68 b/3528-21 t520b686m004as 27 8% 70 1.10 0.99 0.44 220 v/7343-20 t520v227m004as 88 10% 45 1.70 1.50 0.70 220 v/7343-20 t520v227m004as4350 88 10% 25 2.20 2.00 0.90 470 d/7343-31 t520d477m004as 188 10% 40 1.90 1.70 0.80 680 x/7343-43 t520x687m004as 272 10% 35 2.20 2.00 0.90 47 b/3528-21 t520b476m006as 30 8% 70 1.10 0.99 0.44 150 v/7343-20 t520v157m006as 95 10% 45 1.70 1.50 0.70 150 v/7343-20 t520v157m006as4350 95 10% 25 2.20 2.00 0.90 150 d/7343-31 t520d157m006as 95 10% 55 1.70 1.50 0.70 220 d/7343-31 t520d227m006as 139 10% 50 1.70 1.60 0.70 220 d/7334-31 t520d227m006as4350 139 10% 40 1.90 1.70 0.80 330 d/7343-31 T520D337M006AS 208 10% 45 1.80 1.60 0.70 330 d/7343-31 T520D337M006AS4350 208 10% 40 1.90 1.70 0.80 330 d/7343-31 T520D337M006AS4351 208 10% 25 2.40 2.20 1.00 470 x/7343-43 t520x477m006as 296 10% 40 2.00 1.80 0.80 68 v/7343-20 t520v686m010as 68 10% 60 1.40 1.20 0.50 100 v/7343-20 t520v107m010as 100 10% 50 1.60 1.40 0.60 100 d/7343-31 t520d107m010as 100 10% 80 1.40 1.20 0.50 100 d/7343-31 t520d107m010as4350 100 10% 55 1.70 1.50 0.70 150 d/7343-31 t520d157m010as 150 10% 55 1.70 1.50 0.70 150 d/7343-31 t520d157m010as4350 150 10% 40 1.90 1.70 0.80 220 d/7343-31 t520d227m010as 220 10% 40 1.90 1.70 0.80 330 x/7343-43 t520x337m010as 330 10% 40 2.00 1.80 0.80 47 d/7343-31 t520d476m016as 75 10% 70 1.50 1.35 0.60 outline drawing f3233e 10/02 note: new values are listed in italics and blue.
t520 ordering information recommended mounting pad geometries - millimeters component marking pad dimensions kemet/eia size code z g x y c (ref) (ref) b/3528-21 5.00 1.10 2.50 1.95 2.75 v/7343-20, d/7343-31, 8.90 3.80 2.70 2.55 6.35 x/7343-43 land pattern dimensions for reflow solder case codes tape & reel dimensions tape pitch reel quantity kemet eia width mm 0.1 mm part spro- 180mm 330mm cket (7? dia) (13? dia) b 3528-21 8 0.3 4 4 2000 8000 v 7343-20 12 0.3 8 4 1000 3000 d 7343-31 12 0.3 8 4 500 2500 x 7343-43 12 0.3 8 4 500 2000 tape & reel packaging t520 series construction capacitance esr and impedance ? kemet electronics corporation ? p.o. box 5928 ? greenville, sc 29606 ? (864) 963-6300 ? www.kemet.com
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