3Noise Suppression Devices SPIKE KILLER RoHS compliant products Standard Specifications SPIKEK KILLER *1 2 Finished Dimensions [mm] Type No. O.D. I.D. SS7X4X3W 9.1 SS10X7X4.5W 11.5 SS14X8X4.5W 15.8 Core Size [mm] H.T 3.3 5.8 6.8 O.D. 4.8 7.5 6.6 10.0 6.6 14.0 I.D. 4.5 7.0 8.0 H.T 2 2 Mean Flux Effective core cross section Path Length 2 Ae[mm ] Lm [mm] 3.0 4.5 4.5 3.38 5.06 10.1 3 Total Flux c[Wb]min 18.8 26.7 34.6 3.15 4.73 9.46 Coercive Force 3 Rectangular Ratio 3 22max 90min Hc[A/m] Br/Bm[%] Insulating Cover PET case Black *1 Tolerance 0.2mm *2 Reference value *3 Measuring condition100kHz80A/m (sine wave), R.T. "SPIKE KILLER "SPIKE KILLER " : Registered trademarks of TOSHIBA MATERIALS Co., Ltd. " : Resistered in U.S.A., France, Germany, U.K., Japan. Wired SPIKE KILLER and AMOBEADS Current*1 Wire Dia. [A] [mm] Core No. N [turn] Flux*2 [uWb] Dimensions[mm] A max B max AB44DY0305 AB4x2x4.5DY 0.5 0.3 5 13.5 7 9 AB44DY0307 AB4x2x4.5DY 0.5 0.3 7 18.9 7 9 SS7x4x3W 0.5 0.3 9 28.3 12 8 AB34DY0402 AB3x2x4.5DY 1.0 0.4 2 2.6 6 9 AB34DY0403 AB3x2x4.5DY 1.0 0.4 3 3.9 6 9 AB44DY0402 AB4x2x4.5DY 1.0 0.4 2 5.4 7 9 AB44DY0403 AB4x2x4.5DY 1.0 0.4 3 8.1 7 9 AB44DY0404 AB4x2x4.5DY 1.0 0.4 4 10.8 7 9 SS07S0507 SS7x4x3W 1.5 0.5 7 22.1 12 8 SS07S0510 SS7x4x3W 1.5 0.5 10 31.5 12 8 SS07S0515 SS7x4x3W 1.5 0.5 15 47.3 12 8 SS10S05105 SS10x7x4.5W 1.5 0.5 5 23.7 14 10 SS10S05107 SS10x7x4.5W 1.5 0.5 7 33.1 14 10 SS10S05110 SS10x7x4.5W 1.5 0.5 10 47.3 14 10 SS10S09110 SS10x7x4.5W 5 0.9 10 47.3 15 11 SS14S09108 SS14x8x4.5W 5 0.9 8 75.7 20 11 SS14S09205 SS14x8x4.5W 10 0.9x2 5 47.3 20 11 SS07S0309 B 3max A 155 Type No. soldered Type of wire1UEW *1Typical Value, using a cross section of winding wire *2Total Flux of core x turn Example of applied circuit and it s characterisitic [dB/div] Chopper Converter Noise Radiation Without Countermeasure FM radio band Snubber Testing Condition of Radiant Noise Measurment Input 20[V Output 12[V]2[A] Frequency 90kHz Rectifier FRD Detector Simple Loop Antenna AMOBEADS 12 24 36 48 60 72 84 FrequencyMHz - 12 - 96 108 120 Examples of Applied Circuits and Effects of Noise Suppression Example CircuitSelf-Exiting Single Flyback(RCC) 100% Eficiency L + R Q1 Cg Rg SR C Wired AMOBEADS 90% 80% Diode Clamp CR Snubber 70% 60% 50% SRWired AMOBEADS JPN.P. USP No. 3190775 Toshiba Materials Co. Ltd. No. 5745353 40% 0 0.5 1 1.5 2 2.5 Output Currrent 3 Power Supply EfficiencyVin:DC140V, Vo:24V) Example of EffectsDelaytor Diode Clamp CR Snubber 680.022F (101500F Wired AMOBEADS AB44DY0307 applied Swirching Waveform Vds 100V/div Id 1A/div Turn-on Waveform Vds 100V/div Id 0.5A/div Output Voltage Noise Vn 20mV/div Wired AMOBEADS delay the turn-on time of the MOSFET when they are inserted between the gate of the MOSFET and drive winding on the primary side of the self-exiting single flyback (RCC). The wired AMOBEADS reduce both noise, due to surge current and switching loss, by turning on the switching element at the point when the voltage of the transformer becomes low, utilizing the the LC resonance phenomenon induced by inductance L of the primary winding of the transformer and a snubber capacitor C. Note : The diode clamp circuit has a tendency to increase the out put noise. - 13 -