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MAL219827151E3 Datasheet(PDF) 5 Page - Vishay Siliconix |
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MAL219827151E3 Datasheet(HTML) 5 Page - Vishay Siliconix |
5 / 7 page Document Number: 28339 For technical questions, contact: aluminumcaps2@vishay.com www.vishay.com Revision: 08-Aug-08 53 198 PHR-SI Aluminum Capacitors Power High Ripple Current Snap-In Vishay BCcomponents Table 3 RIPPLE CURRENT AND USEFUL LIFE Note Calculation example for case Ø D x L = 35 x 25 mm Therefore the maximum ripple current multiplier at 70 °C, 300 Hz and 2 m/s air-flow = 1.57 x 1.17 x 1.35 = 2.48. ADDITIONAL ELECTRICAL DATA PARAMETER CONDITIONS VALUE Voltage Surge voltage ≥ 400 V versions Us =1.1 xUR Reverse voltage ≤ 1V Current Leakage current After 1 minute at UR IL1 ≤ 0.006 CR xUR +4µA After 5 minutes at UR IL5 ≤ 0.002 CR xUR +4µA Inductance Equivalent series inductance (ESL) All case sizes typ. 19 nH max. 25 nH MULTIPLIER OF RIPPLE CURRENT (IR) AS A FUNCTION OF FREQUENCY FREQUENCY (Hz) IR MULTIPLIER 50 0.86 100 1.00 300 1.17 600 1.24 1000 1.29 ≥ 10 000 1.40 MAXIMUM RIPPLE CURRENT MULTIPLIER PARAMETER CONDITION MAXIMUM RIPPLE CURRENT MULTIPLIER VALUE Ambient temperature (Tamb)70 °C from nomogram; see Fig.7 1.57 Operating frequency (f) 300 Hz from frequency table; see Table 1.17 Air-flow 2 m/s from air-flow; see Fig.6 1.35 1.0 1.1 1.2 1.3 1.4 1.5 1.6 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 (1) (2) (3) (4) air velocity (m/s) IR forced IR free Fig. 6 Multiplier of ripple current (IR) as a function of air-flow Curve 1: case Ø D x L=35 x25mm Curve 2: case Ø D x L=22 x25mm Curve 3: case Ø D x L=35 x50mm Curve 4: case Ø D x L = 22 x 40 mm |
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