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    TOP25 Search Results

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    TOP25 Price and Stock

    Power Integrations TOP255YN

    IC OFFLINE SW FLYBACK TO220-7C
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey TOP255YN Tube 9,549 1
    • 1 $2.16
    • 10 $2.16
    • 100 $1.78
    • 1000 $2.16
    • 10000 $2.16
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    Avnet Americas TOP255YN Tube 8 Weeks 500
    • 1 -
    • 10 -
    • 100 -
    • 1000 $1.836
    • 10000 $1.512
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    TME TOP255YN 863 1
    • 1 $3.82
    • 10 $3.04
    • 100 $2.73
    • 1000 $2.73
    • 10000 $2.73
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    Avnet Asia TOP255YN 8 Weeks 500
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    EBV Elektronik TOP255YN 100 10 Weeks 50
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    Power Integrations TOP250R-TL

    IC OFFLINE SWITCH FLYBACK TO263
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey TOP250R-TL Cut Tape 5,342 1
    • 1 $4.43
    • 10 $4.43
    • 100 $3.66
    • 1000 $3.66
    • 10000 $3.66
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    TOP250R-TL Reel 4,500 750
    • 1 -
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    • 1000 $3.66
    • 10000 $3.11002
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    Avnet Americas TOP250R-TL Reel 8 Weeks 750
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    • 1000 $3.996
    • 10000 $3.108
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    Newark TOP250R-TL Cut Tape 2,136 1
    • 1 $5.17
    • 10 $4.97
    • 100 $4.37
    • 1000 $4.37
    • 10000 $4.37
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    Avnet Asia TOP250R-TL 8 Weeks 750
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    Power Integrations TOP253PN

    IC OFFLINE SWITCH FLYBACK 8DIP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey TOP253PN Tube 4,010 1
    • 1 $1.17
    • 10 $1.17
    • 100 $0.96
    • 1000 $1.17
    • 10000 $0.725
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    Avnet Americas TOP253PN Tube 8 Weeks 1,000
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    • 10 -
    • 100 -
    • 1000 $1.044
    • 10000 $0.812
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    Mouser Electronics TOP253PN 1,970
    • 1 $1.17
    • 10 $1.16
    • 100 $0.876
    • 1000 $0.785
    • 10000 $0.725
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    Newark TOP253PN Bulk 19,442 1
    • 1 $1.36
    • 10 $1.35
    • 100 $1.06
    • 1000 $0.963
    • 10000 $0.9
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    Avnet Asia TOP253PN 8 Weeks 1,000
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    Power Integrations TOP252PN

    IC OFFLINE SWITCH FLYBACK 8DIP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey TOP252PN Tube 3,410 1
    • 1 $1.06
    • 10 $1.06
    • 100 $0.87
    • 1000 $1.06
    • 10000 $0.6625
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    Avnet Americas TOP252PN Tube 8 Weeks 1,000
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    • 1000 $0.954
    • 10000 $0.742
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    Mouser Electronics TOP252PN 7,323
    • 1 $1.06
    • 10 $1.06
    • 100 $0.87
    • 1000 $0.74
    • 10000 $0.671
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    Avnet Asia TOP252PN 2,000 8 Weeks 1,000
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    Power Integrations TOP257GN-TL

    IC OFFLINE SWITCH FLYBACK 8SMD
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey TOP257GN-TL Cut Tape 3,005 1
    • 1 $2.05
    • 10 $2.05
    • 100 $1.692
    • 1000 $1.692
    • 10000 $1.692
    Buy Now
    TOP257GN-TL Digi-Reel 3,005 1
    • 1 $2.05
    • 10 $2.05
    • 100 $1.692
    • 1000 $1.692
    • 10000 $1.692
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    TOP257GN-TL Reel 3,000 1,000
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    • 100 -
    • 1000 $1.44
    • 10000 $1.44
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    Avnet Americas TOP257GN-TL Reel 8 Weeks 3,000
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    • 10000 $1.648
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    Avnet Asia TOP257GN-TL 8 Weeks 3,000
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    TOP25 Datasheets (82)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    TOP250 Kexin TOPSwitch GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher Original PDF
    TOP250 Power Integrations Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher Original PDF
    TOP250F Power Integrations TOPSwitch -GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher Original PDF
    TOP250FN Power Integrations PMIC - AC DC Converters, Offline Switchers, Integrated Circuits (ICs), IC OFFLINE SWIT UVLO HV TO262 Original PDF
    TOP250R Power Integrations TOPSwitch -GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher Original PDF
    TOP250R-TL Power Integrations PMIC - AC DC Converters, Offline Switchers, Integrated Circuits (ICs), IC OFFLINE SWIT UVLO HV D2PAK Original PDF
    TOP250Y Power Integrations TOPSwitch -GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher Original PDF
    TOP250YN Power Integrations IC SW OFF-LINE PS 210/290W TO220 Original PDF
    TOP252EG Power Integrations PMIC - AC DC Converters, Offline Switchers, Integrated Circuits (ICs), IC OFFLINE SWIT PROG OVP 7ESIP Original PDF
    TOP252EN Power Integrations PMIC - AC DC Converters, Offline Switchers, Integrated Circuits (ICs), IC OFFLINE SWIT PROG OVP 7CESIP Original PDF
    TOP252GN Power Integrations PMIC - AC DC Converters, Offline Switchers, Integrated Circuits (ICs), IC OFFLINE SWIT PROG OVP 8SMD Original PDF
    TOP252GN-TL Power Integrations PMIC - AC DC Converters, Offline Switchers, Integrated Circuits (ICs), IC OFFLINE SWIT PROG OVP 8SMD Original PDF
    TOP252MG Power Integrations PMIC - AC DC Converters, Offline Switchers, Integrated Circuits (ICs), IC OFFLINE SWIT PROG OVP 10SDIP Original PDF
    TOP252MN Power Integrations PMIC - AC DC Converters, Offline Switchers, Integrated Circuits (ICs), IC OFFLINE SWIT PROG OVP 10CSDIP Original PDF
    TOP252PG Power Integrations PMIC - AC DC Converters, Offline Switchers, Integrated Circuits (ICs), IC OFFLINE SWIT PROG OVP 8DIP Original PDF
    TOP252PN Power Integrations PMIC - AC DC Converters, Offline Switchers, Integrated Circuits (ICs), IC OFFLINE SWIT PROG OVP 8DIP Original PDF
    TOP253EG Power Integrations PMIC - AC DC Converters, Offline Switchers, Integrated Circuits (ICs), IC OFFLINE SWIT PROG OVP 7CESIP Original PDF
    TOP253EN Power Integrations PMIC - AC DC Converters, Offline Switchers, Integrated Circuits (ICs), IC OFFLINE SWIT PROG OVP 7CESIP Original PDF
    TOP253GN Power Integrations PMIC - AC DC Converters, Offline Switchers, Integrated Circuits (ICs), IC OFFLINE SWIT PROG OVP 8SMD Original PDF
    TOP253GN-TL Power Integrations PMIC - AC DC Converters, Offline Switchers, Integrated Circuits (ICs), IC OFFLINE SWIT PROG OVP 8SMD Original PDF

    TOP25 Datasheets Context Search

    Catalog Datasheet MFG & Type Document Tags PDF

    EE25 transformer

    Abstract: TOP256EN ee25 10 pin transformer ferrite ee25 top256 topswitch-hx power adapter for notebook schematic Standard Notebook Adapter ee25 ferrite core MC1330
    Text: DI-199 Design Idea TOPSwitch-HX 40 W Standard Notebook Adapter Application Device Power Output Input Voltage Output Voltage Topology Notebook Adapter TOP256EN 40 W 90 – 265 VAC 19.0 V Flyback Design Highlights • Low component count • Meets ENERGY STAR 2.0 Efficiency Requirements:


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    DI-199 OP256EN DI-199 EE25 transformer TOP256EN ee25 10 pin transformer ferrite ee25 top256 topswitch-hx power adapter for notebook schematic Standard Notebook Adapter ee25 ferrite core MC1330 PDF

    EER28L

    Abstract: TOP258MN top258 TDK EER28L equivalent for TOP258MN EER28L bobbin ic top258mn TDK PC44 TDK pc40eer28l-z TOP261YN
    Text: Design Example Report Title 22 W 48.6 W peak 3 Output Power Supply Using TOP258MN 85 VAC – 265 VAC Input; 12 V, 40 - 800 mA (3 A peak, 50 ms); 8 V, 25 Specification 75 mA; 40 V, 30 - 300 mA Outputs 0 to +65°C Application Fresh Air Filter Author Applications Engineering Department


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    OP258MN DER-217 EER28L TOP258MN top258 TDK EER28L equivalent for TOP258MN EER28L bobbin ic top258mn TDK PC44 TDK pc40eer28l-z TOP261YN PDF

    top250yn

    Abstract: RL207 equivalent diode RL207 equivalent EER28 TOP250Y Diode P6KE 200A LTV817A EER28 PC44 C1647 topswitch pfc
    Text: DI-136 Design Idea TOPSwitch-GX 75 W Output, High Efficiency, Single Stage Flyback Power Supply With PFC for LED Ballasts Application Device Power Output Input Voltage Output Voltage Topology LED Ballast TOP250YN 75 W 208 – 277 VAC 24 V Flyback Design Highlights


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    DI-136 OP250YN EN55015 DI-136 top250yn RL207 equivalent diode RL207 equivalent EER28 TOP250Y Diode P6KE 200A LTV817A EER28 PC44 C1647 topswitch pfc PDF

    transformer ee28

    Abstract: TOP259EN EE28 EE28 ferrite core power adapter for notebook schematic EE28 bobbin ISP817C ac power adapter for notebook schematic EE28 transformer TDK ee28
    Text: DI-182 Design Idea TOPSwitch-HX Standard 65 W Notebook Adapter Which Meets Requirements for Energy Star 2.0 ES 2.0 Application Device Power Output Input Voltage Output Voltage Topology Notebook TOP259EN 65 W 90 – 265 VAC 19 V ±5% Flyback Design Highlights


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    DI-182 OP259EN O-220 IEC60068 DI-182 transformer ee28 TOP259EN EE28 EE28 ferrite core power adapter for notebook schematic EE28 bobbin ISP817C ac power adapter for notebook schematic EE28 transformer TDK ee28 PDF

    TOP256YN

    Abstract: top258 top253 TOP255 TOP262 top256 top252 transistor KPS 92 TOP257 TO-220-7C
    Text: TOP252-262 TOPSwitch-HX Family ® Enhanced EcoSmart , Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range Product Highlights Lower System Cost, Higher Design Flexibility • Multi-mode operation maximizes efficiency at all loads


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    OP252-262 TOP256YN top258 top253 TOP255 TOP262 top256 top252 transistor KPS 92 TOP257 TO-220-7C PDF

    top*254 pn

    Abstract: TOP255 TOP254-TOP258YN EF25/13/7 TRANSFORMER TOP255PN top258 DER-188 EF25 transformer topswitch-hx CFR-25JB-2K2
    Text: DESIGN EXAMPLE REPORT 20 W Power Supply with Very Low No-load Power Consumption Using TOP255PN Title Specification 85 – 265 VAC Input; 12 V, 1.67 A Output Application Various Author Applications Engineering Department Document number DER-188 Date September 30, 2008


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    OP255PN DER-188 top*254 pn TOP255 TOP254-TOP258YN EF25/13/7 TRANSFORMER TOP255PN top258 DER-188 EF25 transformer topswitch-hx CFR-25JB-2K2 PDF

    top 258

    Abstract: TOP254 TOP256YN top258p smd schottky diode s4 57A TOP258YN top258 TOP255 of IC TOP254 TOP256
    Text: TOP254-258 TOPSwitch-HX Family ® Enhanced EcoSmart , Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range Product Highlights Lower System Cost, Higher Design Flexibility • Multi-mode operation maximizes efficiency at all loads


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    OP254-258 top 258 TOP254 TOP256YN top258p smd schottky diode s4 57A TOP258YN top258 TOP255 of IC TOP254 TOP256 PDF

    top258pn ic Diagram

    Abstract: top*254 en top253 TOP261YN TOP256PN
    Text: TOP252-262 TOPSwitch-HX Family Enhanced EcoSmart™, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range Product Highlights Lower System Cost, Higher Design Flexibility • Multi-mode operation maximizes efficiency at all loads


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    OP252-262 top258pn ic Diagram top*254 en top253 TOP261YN TOP256PN PDF

    TOP259

    Abstract: No abstract text available
    Text: Technical Data Sheet Customer : Bosch Security Part designation : SP-ETD 39 Customer part number : TOP259-12-10A max. 48 30,48 ±0,3 max. 33 Core / material / air gap 6 WI ½ prim \\ \ 9 turns 5 4 WVII ½ prim


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    OP259-12-10A 50Hz/1s) ETD39 K2006 75kVeff 132kHz TOP259 PDF

    top250YN

    Abstract: RL207 equivalent diode LTV817A RL207 equivalent diode k7 TOP250Yn equivalent eer28 flyback transformer EEr28 transformer single stage flyback K718
    Text: DI-136 Design Idea TOPSwitch-GX 75 W Output, High Efficiency, Single Stage Flyback Power Supply With PFC for LED Ballasts Application Device Power Output Input Voltage Output Voltage Topology LED Ballast TOP250YN 75 W 208 – 277 VAC 24 V Flyback Design Highlights


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    DI-136 OP250YN EN55015 DI-136 top250YN RL207 equivalent diode LTV817A RL207 equivalent diode k7 TOP250Yn equivalent eer28 flyback transformer EEr28 transformer single stage flyback K718 PDF

    top256en

    Abstract: SCK08053MSY EKZE100ELL222MK20S lg lcd monitor circuit diagram free p 621 Opto coupler data YW-236-03B CFR-25JB-330R EEL25 schematic LG lcd power supply unit DER-191
    Text: Design Example Report Title 40 W Power Supply Using TOP256EN Specification 90 – 265 VAC Input; 5 V, 2.0 A and 15 V, 2.0 A Outputs Application LCD Monitor Author Applications Engineering Department Document Number DER-191 Date October 13, 2008 Revision 1.0


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    OP256EN DER-191 top256en SCK08053MSY EKZE100ELL222MK20S lg lcd monitor circuit diagram free p 621 Opto coupler data YW-236-03B CFR-25JB-330R EEL25 schematic LG lcd power supply unit DER-191 PDF

    EEL25

    Abstract: eel25 200 STPS30L Optocoupler with CTR 300-600 top256mn top256 EEL-25 P6KE200A equivalent PC817D BAV205
    Text: DI-190 Design Idea TOPSwitch-HX Very Low No-load Consumption Standby Power Supply Application Device Power Output Input Voltage Output Voltage Topology PC Standby / Auxillary Supply TOP256MN 20 W 100 – 375 VDC 5V Flyback The design is DC input, the rectification/PFC boost stage and EMI


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    DI-190 OP256MN DI-190 EEL25 eel25 200 STPS30L Optocoupler with CTR 300-600 top256mn top256 EEL-25 P6KE200A equivalent PC817D BAV205 PDF

    equivalent for TOP258PN

    Abstract: top258pn EER28 12 pin transformer eer28 EEr28 transformer zENER DIODE P6KE200A EER28 BOBBIN DI-142 PS2501-1-H-A top258
    Text: DI-142 Design Idea TOPSwitch-HX 35 W LCD Monitor Power Supply Application Device Power Output Input Voltage Output Voltage Topology LCD Monitor TOP258PN 35 W 90-265 VAC 5 V, 12 V Flyback Design Highlights Low component count, high efficiency >82% full load efficiency Meets CEC/ENERGY STAR 2008 requirements of 81%


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    DI-142 OP258PN DI-142 equivalent for TOP258PN top258pn EER28 12 pin transformer eer28 EEr28 transformer zENER DIODE P6KE200A EER28 BOBBIN PS2501-1-H-A top258 PDF

    TOP257EN

    Abstract: LTV817A TOP257 EF25 ferrite transformer EF25 transformer C1647 eSIP-7C EF25 bobbin topswitch-hx flyback transformer design
    Text: DI-187 Design Idea TOPSwitch-HX 35 W LCD Monitor Application Device Power Output Input Voltage Output Voltage Topology LCD Monitor TOP257EN 35 W 90 – 264 VAC 13 V Flyback Design Highlights • Low component count, high efficiency • Delivers 35 W in 50 °C ambient temperature environments


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    DI-187 OP257EN DI-187 TOP257EN LTV817A TOP257 EF25 ferrite transformer EF25 transformer C1647 eSIP-7C EF25 bobbin topswitch-hx flyback transformer design PDF

    TOP258MN

    Abstract: DIODE 1N4007 Functions equivalent for TOP258MN top258 ic top258mn ic printer inkjet inkjet printer circuit 1N4007 operating frequency topswitch-hx diode zener 1n4007
    Text: DI-143 Design Idea TOPSwitch-HX High Efficiency Inkjet Power Supply Provides up to 80 Watts of Peak Power Application Device Power Output Input Voltage Output Voltage Topology Inkjet Printer TOP258MN 20 W cont, 80 W pk 90 – 264 VAC 32 V Flyback Design Highlights


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    DI-143 OP258MN DI-143 TOP258MN DIODE 1N4007 Functions equivalent for TOP258MN top258 ic top258mn ic printer inkjet inkjet printer circuit 1N4007 operating frequency topswitch-hx diode zener 1n4007 PDF

    TOP255

    Abstract: TOP255PN EF25 TRANSFORMER EF25 flyback TRANSFORMER top255p snubber circuit for mosfet DI-188 EF25 bobbin topswitch-hx EF25
    Text: DI-188 Design Idea TOPSwitch-HX 20 W Low No-load Consumption Power Supply Application Device Power Output Input Voltage Output Voltage Topology Generic TOP255PN 20 W 85 – 265 VAC 12 V Flyback Design Highlights • Very low no-load consumption: <100 mW 85-230 VAC


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    DI-188 OP255PN DI-188 TOP255 TOP255PN EF25 TRANSFORMER EF25 flyback TRANSFORMER top255p snubber circuit for mosfet EF25 bobbin topswitch-hx EF25 PDF

    top*254 pn

    Abstract: top254en EEL22 DER-233 TOP254 BE-22-118CP samxon capacitor TDK PC44 BE-22-1110CP C0805C101J1GACTU
    Text: Design Example Report Title 15 W Power Supply with Low No-load, High Efficiency Power Consumption Using TOP254EN Specification 90 VAC – 265 VAC Input; 6 V, 2.5 A Output Application Adapter Author Applications Engineering Department Document Number DER-233


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    OP254EN DER-233 top*254 pn top254en EEL22 DER-233 TOP254 BE-22-118CP samxon capacitor TDK PC44 BE-22-1110CP C0805C101J1GACTU PDF

    TOP256EN

    Abstract: power adapter for notebook schematic ac power adapter for notebook schematic Bobbin, RM8 Low Profile, Vertical, 12 pins top256 ECJ-3FBJ222K HX 711 DER-230 samxon 7409 voltage regulator
    Text: Design Example Report Title 40 W Power Supply Using a TOP256EN Specification 90 VAC – 265 VAC 47 – 63 Hz Input; 19 V, 2.1 A Output Application Mini Notebook Adapter Author Applications Engineering Department Document Number DER-230 Date September 3, 2009


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    OP256EN DER-230 TOP256EN power adapter for notebook schematic ac power adapter for notebook schematic Bobbin, RM8 Low Profile, Vertical, 12 pins top256 ECJ-3FBJ222K HX 711 DER-230 samxon 7409 voltage regulator PDF

    schematic LG lcd power supply unit

    Abstract: TOP257EN lg lcd monitor circuit diagram free LG monitor lcd power supply lg lcd monitor circuit diagram LG lcd monitor power supply circuit diagram ALG220 3M1350F-1 schematic LG lcd power supply unit AIP-0156 Ef25 core
    Text: DESIGN EXAMPLE REPORT Title 35 W Power Supply Using TOP257EN Specification 90 VAC – 264 VAC Input; 13 V, 2.69 A Output Application LCD Monitor Author Applications Engineering Department Document Number DER-187 Date June 24, 2008 Revision 1.0 Summary and Features


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    OP257EN DER-187 schematic LG lcd power supply unit TOP257EN lg lcd monitor circuit diagram free LG monitor lcd power supply lg lcd monitor circuit diagram LG lcd monitor power supply circuit diagram ALG220 3M1350F-1 schematic LG lcd power supply unit AIP-0156 Ef25 core PDF

    TOP250YN

    Abstract: DER-136 TOP250Yn equivalent TOP250Y RL207 equivalent diode TOP250 bEER-28-111-cp TURNS OF TRANSFORMER TOP250 transformer for top250 EER28 BOBBIN
    Text: Design Example Report Title 75 W Single Output, Power-factor Corrected LED Driver Using TOP250YN Specification 208 VAC – 277 VAC Input 24 V, 3.1 A Output Application LED Driver Author Power Integrations Applications Department Document Number DER-136 Date


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    OP250YN DER-136 EN55015 TOP250YN DER-136 TOP250Yn equivalent TOP250Y RL207 equivalent diode TOP250 bEER-28-111-cp TURNS OF TRANSFORMER TOP250 transformer for top250 EER28 BOBBIN PDF

    TOP258PN

    Abstract: equivalent for TOP258PN EER28 C35 zener topswitch StackFET zener c34 4801 MOSFET DI-144 EEr28 transformer EER28 BOBBIN
    Text: DI-144 Design Idea TOPSwitch-HX Condensing Boiler Power Supply Application Device Power Output Input Voltage Output Voltage Topology Boiler TOP258PN 50 W, 70 W Peak 185 – 265 VAC 24 V Flyback Design Highlights • High efficiency under all load conditions see Figure 2


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    DI-144 OP258PN DI-144 TOP258PN equivalent for TOP258PN EER28 C35 zener topswitch StackFET zener c34 4801 MOSFET EEr28 transformer EER28 BOBBIN PDF

    top258pn

    Abstract: equivalent for TOP258PN EER28 BOBBIN ic top258pn zener diode c12 5t EER28 zener diode c18 5t topswitch-hx 12 pin transformer eer28 EEr28 transformer
    Text: DI-146 Design Idea TOPSwitch-HX 35 W LCD Monitor Power Supply Application Device Power Output Input Voltage Output Voltage Topology LCD Monitor TOP258PN 35 W 90 – 264 VAC 5 V, 15 V Flyback Design Highlights • High efficiency • >83% full load efficiency Meets CEC 2008 requirements


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    DI-146 OP258PN DI-146 top258pn equivalent for TOP258PN EER28 BOBBIN ic top258pn zener diode c12 5t EER28 zener diode c18 5t topswitch-hx 12 pin transformer eer28 EEr28 transformer PDF

    ac power adapter for notebook schematic

    Abstract: power adapter for notebook schematic TOP258EN EE28 EE28 bobbin topswitch StackFET PC357C transformer ee28 top258 diode p6ke250a
    Text: DI-197 Design Idea TOPSwitch-HX 65 W Notebook Adapter Application Device Power Output Input Voltage Output Voltage Topology Notebook Adapter TOP258EN 65 W 90 – 265 VAC 19 V Flyback Design Highlights • Very compact, low parts-count design • Internal current limit reduction eliminates secondary-side


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    DI-197 OP258EN DI-197 ac power adapter for notebook schematic power adapter for notebook schematic TOP258EN EE28 EE28 bobbin topswitch StackFET PC357C transformer ee28 top258 diode p6ke250a PDF

    EE22 core

    Abstract: top*254 pn top254en EE19 core EE19 core specifications P4EE19 samxon lp TOP254 EE19 vertical 6 pin bobbin EE19 bobbin 8 PIN
    Text: Design Example Report Title High Efficiency 18 W Power Supply Using TOP254EN and a Small Transformer Core Size Specification 90 VAC – 265 VAC Input; 12 V, 1.5 A Output Application Adapter Author Applications Engineering Department Document Number DER-234


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    OP254EN DER-234 EE22 core top*254 pn top254en EE19 core EE19 core specifications P4EE19 samxon lp TOP254 EE19 vertical 6 pin bobbin EE19 bobbin 8 PIN PDF