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VSK-S3-3R3U Datasheet(PDF) 4 Page - CUI INC |
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VSK-S3-3R3U Datasheet(HTML) 4 Page - CUI INC |
4 / 5 page cui.com date 03/31/2014 │ page 4 of 5 CUI Inc │ SERIES: VSK-S3 │ DESCRIPTION: AC-DC POWER SUPPLY L +V0 -V0 L N N C1 C2 *FUS E Tv s RL *NTC MOV C3 22 26 + + Figure1 L +V0 -V0 L N N C1 C2 *F USE Tvs RL *NTC MO V NF C8 C6 C7 C3 + + 22 26 Figure 2 VSK-S3 EMC Filtering Circuit TYPICAL APPLICATION CIRCUIT EXTERNAL CAPACITORS TYPICAL VALUE (Unit: µF) MODEL C1 C2 C3 TVS VSK-S3-3R3U 150 0.1 4.7/400V P4KE6.8A VSK-S3-5U 150 0.1 4.7/400V P4KE6.8A VSK-S3-9U 150 0.1 4.7/400V P4KE12A VSK-S3-12U 150 0.1 4.7/400V P4KE20A VSK-S3-15U 150 0.1 4.7/400V P4KE20A VSK-S3-24U 150 0.1 4.7/400V P4KE30A Notes: 1. Output filtering capacitors C1, C3 is electrolytic capacitors, It is recommended to use high frequency and low impedance electrolytic capacitors. For capacitance and current of capacitor please refer to manufacture’s datasheet. Voltage derating of apacitor should be 80% or above. C2, C4 is ceramic capacitors , it is used to filter high frequency noise. TVS is a recommended component to protect post-circuits (when converter fails). 2. MOV is required for VSK-S3 models. Model: 471KD05, it is used to protect the device under surge. 3. It is recommended to connect FUSE, the parameter is 0.5A/250V slow blow. External input NTC is recommended to use D -14 or 10Ω/2W wire-round resistor. 4. If EMC performance is required, recommended to add “EMC filter” at the input end(see figure 2) C6:X capacitor, recommended parameter 0.1uF/275V; C7,C8:Y capacitor, recommended parameter 220pF/275V; NF: common model choke, recommended inductance is about 10mH-30mH. 5. Terminals 22 and 26 are internal rectification and filtering terminals. To protect the models further, it is recommended to connect an electrolytic capacitor C3 (it is recommended to be 4.7uF/400V). If operation voltage of the module is between 160~264VAC, C3 can be removed. Note: 1. All specifications measured at Ta=25°C, humidity <75%, rated input voltage, and rated output load, unless otherwise specified. For more information, please visit the product page. |
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