Film Capacitors Metallized Polypropylene Film Capacitors (MKP) Series/Type: Date: B32651 ... B32656 August 2004 © EPCOS AG 2004. Reproduction, publication and dissemination of this data sheet, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited. Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers' Association), unless otherwise agreed. Metallized polypropylene film capacitors (MKP) B32651 ... B32656 High pulse (wound) Typical applications TV (S-correction/flyback) Electronic ballasts Dimensional drawing Climatic Max. operating temperature: 105 °C Climatic category (IEC 60068-1): 55/100/56 Construction Dielectric: polypropylene (PP) Wound capacitor technology with internal series connection for VR ≥1250 VDC Plastic case (UL 94 V-0) Epoxy resin sealing Dimensions in mm Features High pulse strength High contact reliability Small dimensions Terminals Parallel wire leads, lead-free tinned Special lead lengths available on request Lead spacing ±0.4 Lead diameter Type d1 10 15 22.5 27.5 37.5 0.6 0.8 0.8 0.8 1.0 Marking Manufacturer's logo, lot number ( ≤27.5 mm), series number (e.g. 651), rated capacitance (coded), cap. tolerance (code letter), rated DC voltage (AC voltage for 1600 VDC/700 VAC and 2000 VDC/1000 VAC), date of manufacture (coded) Delivery mode Bulk (untaped) Taped (Ammo pack or reel) For notes on taping, refer to chapter "Taping and packing“. 2 B32651 B32652 B32653 B32654 B32656 B32651 ... B32656 High pulse (wound) Overview of available types Lead spacing 10 mm 15 mm Type B32651 B32652 Page 6 7 VR (VDC) 1250 250 400 630 1000 1250 1600 1600 2000 Vrms (VAC) 450 160 200 250 250 500 500 700 700 CR (nF) 1.0 1.5 2.2 3.3 4.7 6.8 10 15 22 33 47 68 100 150 220 330 470 680 3 B32651 ... B32656 High pulse (wound) Overview of available types Lead spacing 22.5 mm 27.5 mm Type B32653 B32654 Page 9 11 VR (VDC) 250 400 630 1000 1250 1600 2000 2000 250 400 630 1000 1250 1600 2000 Vrms (VAC) 160 200 250 250 500 500 700 1000 160 200 250 250 500 500 700 CR (nF) 2.2 3.3 4.7 6.8 10 15 22 33 47 68 100 150 220 330 470 680 1000 1500 2200 3300 4700 4 B32651 ... B32656 High pulse (wound) Overview of available types Lead spacing 37.5 mm Type B32656 Page 12 VR (VDC) 850 1000 1250 1600 2000 Vrms (VAC) 450 500 500 600 700 CR (nF) 100 150 220 330 470 680 1000 5 B32651 High pulse (wound) Ordering codes and packing units (lead spacing 10 mm) VR VDC1) 1250 Vrms CR f ≤1 kHz VAC nF 2.2 450 3.3 4.7 6.8 Max. dimensions w×h×l mm 4.0 × 9.0 × 13.0 5.0 × 11.0 × 13.0 5.0 × 11.0 × 13.0 6.0 × 12.0 × 13.0 Ordering code (composition see below) B32651A7222+*** B32651A7332+*** B32651A7472+*** B32651A7682+*** Ammo Reel Untaped pack pcs./unit pcs./unit pcs./unit 1000 830 830 680 1700 1300 1300 1100 Further E series and intermediate capacitance values on request. Composition of ordering code + = Capacitance tolerance code: K= ±10% J= ±5% on request = ±3.5% *** = Packaging code: 289 = Ammo pack 189 = Reel 000 = Untaped (lead length 6 1 mm) 1) For pulse loads (pulse width ≤ 1000 µs), a peak voltage of 1400 Vp can be permitted. 6 1000 1000 1000 1000 B32652 High pulse (wound) Ordering codes and packing units (lead spacing 15 mm) VR Vrms CR f ≤1 kHz VDC VAC nF 250 160 400 200 630 250 1000 250 1250 500 150 220 330 470 680 68 100 150 220 330 470 33 47 68 100 150 220 10 15 22 33 47 68 100 6.8 10 15 22 33 Max. dimensions w×h×l mm 5.0 × 10.5 × 18.0 6.0 × 11.0 × 18.0 7.0 × 12.5 × 18.0 8.5 × 14.5 × 18.0 9.0 × 17.5 × 18.0 5.0 × 10.5 × 18.0 5.0 × 10.5 × 18.0 6.0 × 11.0 × 18.0 7.0 × 12.5 × 18.0 8.5 × 14.5 × 18.0 9.0 × 17.5 × 18.0 5.0 × 10.5 × 18.0 5.0 × 10.5 × 18.0 6.0 × 11.0 × 18.0 7.0 × 12.5 × 18.0 8.5 × 14.5 × 18.0 9.0 × 17.5 × 18.0 5.0 × 10.5 × 18.0 5.0 × 10.5 × 18.0 5.0 × 10.5 × 18.0 6.0 × 11.0 × 18.0 7.0 × 12.5 × 18.0 8.5 × 14.5 × 18.0 9.0 × 17.5 × 18.0 5.0 × 10.5 × 18.0 6.0 × 11.0 × 18.0 7.0 × 12.5 × 18.0 8.5 × 14.5 × 18.0 9.0 × 17.5 × 18.0 Ordering code (composition see below) B32652A3154+*** B32652A3224+*** B32652A3334+*** B32652A3474+*** B32652A3684+*** B32652A4683+*** B32652A4104+*** B32652A4154+*** B32652A4224+*** B32652A4334+*** B32652A4474+*** B32652A6333+*** B32652A6473+*** B32652A6683+*** B32652A6104+*** B32652A6154+*** B32652A6224+*** B32652A0103+*** B32652A0153+*** B32652A0223+*** B32652A0333+*** B32652A0473+*** B32652A0683+*** B32652A0104+*** B32652A7682+*** B32652A7103+*** B32652A7153+*** B32652A7223+*** B32652A7333+*** Ammo Reel Untaped pack pcs./unit pcs./unit pcs./unit 1170 960 830 680 640 1170 1170 960 830 680 640 1170 1170 960 830 680 640 1170 1170 1170 960 830 680 640 1170 960 830 680 640 1300 1100 900 700 700 1300 1300 1100 900 700 700 1300 1300 1100 900 700 700 1300 1300 1300 1100 900 700 700 1300 1100 900 700 700 Further E series and intermediate capacitance values on request. Composition of ordering code + = Capacitance tolerance code: K= ±10% J= ±5% on request = ±3.5% *** = Packaging code: 289 = Ammo pack 189 = Reel 000 = Untaped (lead length 6 1 mm) 7 1000 1000 1000 500 500 1000 1000 1000 1000 500 500 1000 1000 1000 1000 500 500 1000 1000 1000 1000 1000 500 500 1000 1000 1000 500 500 B32652 High pulse (wound) Ordering codes and packing units (lead spacing 15 mm) VR Vrms CR f ≤1 kHz VDC VAC nF 3.3 1600 500 4.7 6.8 10 15 2.2 1600 700 3.3 4.7 6.8 10 1.0 2000 700 1.5 2.2 3.3 4.7 Max. dimensions w×h×l mm 5.0 × 10.5 × 18.0 6.0 × 11.0 × 18.0 7.0 × 12.5 × 18.0 8.5 × 14.5 × 18.0 9.0 × 17.5 × 18.0 5.0 × 10.5 × 18.0 6.0 × 11.0 × 18.0 7.0 × 12.5 × 18.0 8.5 × 14.5 × 18.0 9.0 × 17.5 × 18.0 5.0 × 10.5 × 18.0 6.0 × 11.0 × 18.0 7.0 × 12.5 × 18.0 8.5 × 14.5 × 18.0 9.0 × 17.5 × 18.0 Ordering code (composition see below) B32652A1332+*** B32652A1472+*** B32652A1682+*** B32652A1103+*** B32652A1153+*** B32652J1222+*** B32652J1332+*** B32652J1472+*** B32652J1682+*** B32652J1103+*** B32652A2102+*** B32652A2152+*** B32652A2222+*** B32652A2332+*** B32652A2472+*** Ammo pack pcs./unit 1170 960 830 680 640 1170 960 830 680 640 1170 960 830 680 640 Reel Untaped pcs./unit 1300 1100 900 700 700 1300 1100 900 700 700 1300 1100 900 700 700 pcs./unit 1000 1000 1000 500 500 1000 1000 1000 500 500 1000 1000 1000 500 500 Further E series and intermediate capacitance values on request. Composition of ordering code + = Capacitance tolerance code: K= ±10% J= ±5% on request = ±3.5% *** = Packaging code: 289 = Ammo pack 189 = Reel 000 = Untaped (lead length 6 1 mm) 8 B32653 High pulse (wound) Ordering codes and packing units (lead spacing 22.5 mm) VR Vrms CR f ≤1 kHz VDC VAC nF 250 160 400 200 630 250 1000 250 1250 500 220 330 470 680 1000 150 220 330 470 680 1000 100 150 220 330 470 33 47 68 100 150 220 22 33 47 68 100 Max. dimensions w×h×l mm 6.0 × 15.0 × 26.5 6.0 × 15.0 × 26.5 7.0 × 16.0 × 26.5 8.5 × 16.5 × 26.5 10.5 × 16.5 × 26.5 6.0 × 15.0 × 26.5 6.0 × 15.0 × 26.5 7.0 × 16.0 × 26.5 8.5 × 16.5 × 26.5 10.5 × 16.5 × 26.5 11.0 × 20.5 × 26.5 6.0 × 15.0 × 26.5 6.0 × 15.0 × 26.5 8.5 × 16.5 × 26.5 10.5 × 16.5 × 26.5 11.0 × 20.5 × 26.5 6.0 × 15.0 × 26.5 6.0 × 15.0 × 26.5 6.0 × 15.0 × 26.5 8.5 × 16.5 × 26.5 10.5 × 16.5 × 26.5 11.0 × 20.5 × 26.5 6.0 × 15.0 × 26.5 6.0 × 15.0 × 26.5 8.5 × 16.5 × 26.5 10.5 × 16.5 × 26.5 11.0 × 20.5 × 26.5 Ordering code (composition see below) B32653A3224+*** B32653A3334+*** B32653A3474+*** B32653A3684+*** B32653A3105+*** B32653A4154+*** B32653A4224+*** B32653A4334+*** B32653A4474+*** B32653A4684+*** B32653A4105+*** B32653A6104+*** B32653A6154+*** B32653A6224+*** B32653A6334+*** B32653A6474+*** B32653A0333+*** B32653A0473+*** B32653A0683+*** B32653A0104+*** B32653A0154+*** B32653A0224+*** B32653A7223+*** B32653A7333+*** B32653A7473+*** B32653A7683+*** B32653A7104+*** Ammo Reel Untaped pack pcs./unit pcs./unit pcs./unit 680 680 580 480 390 680 680 580 480 390 370 680 680 480 390 370 680 680 680 480 390 370 680 680 480 390 370 700 700 600 500 400 700 700 600 500 400 350 700 700 500 400 350 700 700 700 500 400 350 700 700 500 400 350 Further E series and intermediate capacitance values on request. Composition of ordering code + = Capacitance tolerance code: K= ±10% J= ±5% on request = ±3.5% *** = Packaging code: 289 = Ammo pack 189 = Reel 000 = Untaped (lead length 6 1 mm) 9 720 720 630 510 540 720 720 630 510 540 510 720 720 510 540 510 720 720 720 510 540 510 720 720 510 540 510 B32653 High pulse (wound) Ordering codes and packing units (lead spacing 22.5 mm) VR Vrms CR f ≤1 kHz VDC VAC nF 6.8 1600 500 10 15 22 33 47 3.3 2000 700 4.7 6.8 10 15 2.2 2000 1000 3.3 4.7 6.8 10 Max. dimensions w×h×l mm 6.0 × 15.0 × 26.5 6.0 × 15.0 × 26.5 7.0 × 16.0 × 26.5 8.5 × 16.5 × 26.5 10.5 × 16.5 × 26.5 11.0 × 20.5 × 26.5 6.0 × 15.0 × 26.5 6.0 × 15.0 × 26.5 8.5 × 16.5 × 26.5 10.5 × 16.5 × 26.5 11.0 × 20.5 × 26.5 6.0 × 15.0 × 26.5 6.0 × 15.0 × 26.5 8.5 × 16.5 × 26.5 10.5 × 16.5 × 26.5 10.5 × 20.5 × 26.5 Ordering code (composition see below) B32653A1682+*** B32653A1103+*** B32653A1153+*** B32653A1223+*** B32653A1333+*** B32653A1473+*** B32653A2332+*** B32653A2472+*** B32653A2682+*** B32653A2103+*** B32653A2153+*** B32653A8222+*** B32653A8332+*** B32653A8472+*** B32653A8682+*** B32653A8103+*** Ammo pack pcs./unit 680 680 580 480 390 370 680 680 480 390 370 680 680 480 390 390 Reel Untaped pcs./unit 700 700 600 500 400 350 700 700 500 400 350 700 700 500 400 400 pcs./unit 720 720 630 510 540 510 720 720 510 540 510 720 720 510 540 540 Further E series and intermediate capacitance values on request. Composition of ordering code + = Capacitance tolerance code: K= ±10% J= ±5% on request = ±3.5% *** = Packaging code: 289 = Ammo pack 189 = Reel 000 = Untaped (lead length 6 1 mm) 10 B32654 High pulse (wound) Ordering codes and packing units (lead spacing 27.5 mm) VR Vrms CR f ≤1 kHz VDC VAC nF 250 160 400 200 630 250 1000 250 1250 500 1600 500 2000 700 1500 2200 3300 4700 1000 1500 2200 3300 680 1000 1500 220 330 470 680 100 150 220 330 47 68 100 150 22 33 47 68 Max. dimensions w×h×l mm 11.0 × 21.0 × 31.5 12.5 × 21.5 × 31.5 15.0 × 24.5 × 31.5 18.0 × 27.5 × 31.5 11.0 × 21.0 × 31.5 12.5 × 21.5 × 31.5 14.0 × 24.5 × 31.5 19.0 × 30.0 × 31.5 11.0 × 21.0 × 31.5 13.5 × 23.0 × 31.5 18.0 × 27.5 × 31.5 11.0 × 21.0 × 31.5 11.0 × 21.0 × 31.5 14.0 × 24.5 × 31.5 18.0 × 27.5 × 31.5 11.0 × 21.0 × 31.5 11.0 × 21.0 × 31.5 14.0 × 24.5 × 31.5 18.0 × 27.5 × 31.5 11.0 × 21.0 × 31.5 11.0 × 21.0 × 31.5 14.0 × 24.5 × 31.5 18.0 × 27.5 × 31.5 11.0 × 21.0 × 31.5 13.5 × 23.0 × 31.5 18.0 × 27.5 × 31.5 19.0 × 30.0 × 31.5 Ordering code (composition see below) B32654A3155+*** B32654A3225+*** B32654A3335+000 B32654A3475+000 B32654A4105+*** B32654A4155+*** B32654A4225+000 B32654A4335+000 B32654A6684+*** B32654A6105+*** B32654A6155+000 B32654A0224+*** B32654A0334+*** B32654A0474+000 B32654A0684+000 B32654A7104+*** B32654A7154+*** B32654A7224+000 B32654A7334+000 B32654A1473+*** B32654A1683+*** B32654A1104+000 B32654A1154+000 B32654A2223+*** B32654A2333+*** B32654A2473+000 B32654A2683+000 Ammo Reel Untaped pack pcs./unit pcs./unit pcs./unit 350 300 350 300 350 250 350 350 350 350 350 350 350 250 Further E series and intermediate capacitance values on request. Composition of ordering code + = Capacitance tolerance code: K= ±10% J= ±5% on request = ±3.5% *** = Packaging code: 189 = Reel 000 = Untaped (lead length 6 1 mm) 11 320 280 240 200 320 280 260 180 320 260 200 320 320 260 200 320 320 260 200 320 320 260 200 320 260 200 180 B32656 High pulse (wound) Ordering codes and packing units (lead spacing 37.5 mm) VR Vrms CR f ≤1 kHz VDC VAC nF 850 450 1000 500 1250 500 1600 600 2000 700 220 330 470 680 1000 470 680 1000 220 330 470 680 100 150 220 100 150 220 Max. dimensions w×h×l mm 12.0 × 22.0 × 42.0 12.0 × 22.0 × 42.0 12.0 × 22.0 × 42.0 16.0 × 28.5 × 42.0 18.0 × 32.5 × 42.0 14.0 × 25.0 × 42.0 16.0 × 28.5 × 42.0 20.0 × 39.5 × 42.0 14.0 × 25.0 × 42.0 16.0 × 28.5 × 42.0 18.0 × 32.5 × 42.0 20.0 × 39.5 × 42.0 12.0 × 22.0 × 42.0 14.0 × 25.0 × 42.0 16.0 × 28.5 × 42.0 14.0 × 25.0 × 42.0 18.0 × 32.5 × 42.0 20.0 × 39.5 × 42.0 Ordering code (composition see below) B32656A8224+000 B32656A8334+000 B32656A8474+000 B32656A8684+000 B32656A8105+000 B32656A0474+000 B32656A0684+000 B32656A0105+000 B32656A7224+000 B32656A7334+000 B32656A7474+000 B32656A7684+000 B32656J1104+000 B32656J1154+000 B32656J1224+000 B32656J2104+000 B32656J2154+000 B32656J2224+000 Further E series and intermediate capacitance values on request. Composition of ordering code + = Capacitance tolerance code: K= ±10% J= ±5% on request = ±3.5% Packaging code: 000 = Untaped (lead length 6 1 mm) 12 Untaped pcs./unit 72 72 72 48 32 56 48 32 56 48 48 32 72 56 48 56 48 32 B32651 ... B32656 High pulse (wound) Technical data Operating temperature range Max. operating temperature Top,max Upper category temperature Tmax Lower category temperature Tmin Rated temperature TR Dissipation factor tan δ (in 10-3) at at 20 °C 1 kHz (upper limit values) 10 kHz 100 kHz Insulation resistance Rins or time constant τ = CR Rins at 20 °C, rel. humidity ≤ 65% (minimum as-delivered values) DC test voltage Category voltage VC (continuous operation with VDC or VAC at f ≤ 1 kHz) Operating voltage V op for short operating periods (VDC or VAC at f ≤ 1 kHz) Damp heat test Limit values after damp heat test ≤27 nF 27 nF<CR≤0.1 µF 0.1 µF<CR≤1 µF >1 µF 0.8 1.0 2.0 0.8 0.8 1.0 3.0 CR ≤ 0.33 µF 100 GΩ Failure criteria: Total failure Failure due to variation of parameters 0.8 1.0 CR > 0.33 µF 30000 s 1.6 VR, 2 s TA (°C) DC voltage derating TA ≤ 85 VC = VR 85<TA≤100 VC = VR (165TA)/80 TA (°C) DC voltage (max. hours) TA ≤ 85 Vop = 1.25 VC (2000 h) 85<TA≤100 Vop = 1.25 VC (2000 h) 56 days/40 °C/93% relative humidity Capacitance change ∆C/C Dissipation factor change ∆ tan δ Insulation resistance Rins or time constant τ = CR Rins Reliability: Failure rate λ Service life tSL +105 °C +100 °C 55 °C +85 °C AC voltage derating VC,rms = Vrms VC,rms=Vrms (165TA)/80 AC voltage (max. hours) Vop = 1.0 VC,rms (2000 h) Vop = 1.0 VC,rms (2000 h) ≤ 3% ≤ 0.5 10-3 (at 1 kHz) ≤ 1.0 10-3 (at 10 kHz) ≥ 50% of minimum as-delivered values 1 fit (≤ 1 10-9/h) at 0.5 VR, 40 °C 200 000 h at 1.0 VR, 40 °C For conversion to other operating conditions and temperatures, refer to chapter "Quality assurance", page . Short circuit or open circuit Capacitance change ∆C/C Dissipation factor tan δ Insulation resistance Rins or time constant τ = CR Rins 13 > 10% > 4 upper limit value < 1500 MΩ (CR≤0.33 µF) < 500 s (CR>0.33 µF) B32651 ... B32656 High pulse (wound) Pulse handling capability "dV/dt" represents the maximum permissible voltage change per unit of time for non-sinusoidal voltages, expressed in V/µs. "k0" represents the maximum permissible pulse characteristic of the waveform applied to the capacitor, expressed in V 2/µs. Note: The values of dV/dt and k0 provided below must not be exceeded in order to avoid damaging the capacitor. dV/dt values Lead spacing VR Vrms VDC VAC 250 400 630 850 1000 1250 1600 2000 160 200 250 450 250 500 450 500 500 600 700 700 1000 10 mm dV/dt in V/µs 4000 15 mm 22.5 mm 27.5 mm 37.5 mm 200 300 400 120 180 300 50 100 150 975 600 300 1850 4500 1150 2400 600 1000 140 2300 200 7000 7500 5200 8000 14 90 100 210 B32651 ... B32656 High pulse (wound) k0 values Lead spacing VR Vrms VDC VAC 250 400 630 850 1000 1250 1600 2000 160 200 250 450 250 500 450 500 500 600 700 700 1000 10 mm k0 in V2/µs 25 000 000 15 mm 22.5 mm 27.5 mm 10 000 250 000 500 000 60 000 200 000 350 000 25 000 110 000 250 000 3 000 000 9 000 000 20 000 000 28 000 000 60 000 000 1 500 000 3 750 000 10 000 000 1 000 000 2 000 000 4 000 000 15 000 000 Impedance Z versus frequency f (typical values) 15 40 000 000 50 000 000 37.5 mm 153 000 180 000 350 000 672 000 800 000 B32651 High pulse (wound) Permissible AC voltage Vrms versus frequency f (for sinusoidal waveforms, TA ≤90 °C) For T A >90 °C, please refer to "General technical information", section 3.2.3. Lead spacing 10 mm 1250 VDC/450 VAC 16 B32652 High pulse (wound) Permissible AC voltage Vrms versus frequency f (for sinusoidal waveforms, TA ≤90 °C) For T A >90 °C, please refer to "General technical information", section 3.2.3. Lead spacing 15 mm 250 VDC/160 VAC 400 VDC/200 VAC 630 VDC/250 VAC 1000 VDC/250 VAC 17 B32652 High pulse (wound) Permissible AC voltage Vrms versus frequency f (for sinusoidal waveforms, TA ≤90 °C) For T A >90 °C, please refer to "General technical information", section 3.2.3. Lead spacing 15 mm 1250 VDC/500 VAC 1600 VDC/500 VAC 1600 VDC/700 VAC 2000 VDC/700 VAC 18 B32653 High pulse (wound) Permissible AC voltage Vrms versus frequency f (for sinusoidal waveforms, TA ≤90 °C) For T A >90 °C, please refer to "General technical information", section 3.2.3. Lead spacing 22.5 mm 250 VDC/160 VAC 400 VDC/200 VAC 630 VDC/250 VAC 1000 VDC/250 VAC 19 B32653 High pulse (wound) Permissible AC voltage Vrms versus frequency f (for sinusoidal waveforms, TA ≤90 °C) For T A >90 °C, please refer to "General technical information", section 3.2.3. Lead spacing 22.5 mm 1250 VDC/500 VAC 1600 VDC/500 VAC 2000 VDC/700 VAC 2000 VDC/1000 VAC 20 B32654 High pulse (wound) Permissible AC voltage Vrms versus frequency f (for sinusoidal waveforms, TA ≤90 °C) For T A >90 °C, please refer to "General technical information", section 3.2.3. Lead spacing 27.5 mm 250 VDC/160 VAC 400 VDC/200 VAC 630 VDC/250 VAC 1000 VDC/250 VAC 21 B32654 High pulse (wound) Permissible AC voltage Vrms versus frequency f (for sinusoidal waveforms, TA ≤90 °C) For T A >90 °C, please refer to "General technical information", section 3.2.3. Lead spacing 27.5 mm 1250 VDC/500 VAC 1600 VDC/500 VAC 2000 VDC/700 VAC 22 B32656 High pulse (wound) Permissible AC voltage Vrms versus frequency f (for sinusoidal waveforms, TA ≤90 °C) For T A >90 °C, please refer to "General technical information", section 3.2.3. Lead spacing 37.5 mm 850 VDC/450 VAC 1000 VDC/500 VAC 1250 VDC/500 VAC 1600 VDC/600 VAC 23 B32656 High pulse (wound) Permissible AC voltage Vrms versus frequency f (for sinusoidal waveforms, TA ≤90 °C) For T A >90 °C, please refer to "General technical information", section 3.2.3. Lead spacing 37.5 mm 2000 VDC/700 VAC 24 B32651 ... B32656 High pulse (wound) Flyback application Permissible voltage and current / waveform Permissible current I pp versus frequency f for a duty cycle of 20% (t 0/t = 0.2): Approximation formular for duty cycle higher than 20%: 25 B32651 ... B32656 High pulse (wound) Flyback application Permissible current Ipp versus rated capacitance CR Frequency = 15.75 kHz Frequency = 31.5 kHz Frequency = 95 kHz 26 B32651 ... B32656 High pulse (wound) S-correction application Permissible voltage and current / waveform 27 B32651 ... B32656 High pulse (wound) S-correction application Permissible current Ipp versus rated capacitance CR Frequency = 15.75 kHz Frequency = 31.75 kHz Frequency = 95 kHz 28