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AC DC Converters, Offline Switches

Browse available AC DC Converters, Offline Switches part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.

For BOM, shortage or hard-to-find requirements, send your part number and quantity to Winsun (HK) Electronics for availability, lead-time and quotation support.

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Photo Mfr. Part # Availability Price Quantity Datasheet Series Package/Case Packaging Product Status Output Isolation Internal Switch(s) Voltage - Breakdown Topology Voltage - Start Up Voltage - Supply (Vcc/Vdd) Duty Cycle Frequency - Switching Power (Watts) Fault Protection Control Features Operating Temperature Grade Qualification Supplier Device Package Mounting Type
UC3851N Texas Instruments

UC3851N

IC OFFLINE SWITCH MULT TOP 18DIP

Texas Instruments

4,486 -
Datasheet - 18-DIP (0.300", 7.62mm) Bulk Active - No - Boost, Buck, Flyback, Forward 8 V 7.8V ~ 32V 50% Up to 500kHz - Current Limiting, Over Voltage Frequency Control, Soft Start 0°C ~ 70°C (TA) - - 18-PDIP Through Hole
UC2851N Texas Instruments

UC2851N

IC OFFLINE SWITCH MULT TOP 18DIP

Texas Instruments

2,906 -
Datasheet - 18-DIP (0.300", 7.62mm) Bulk Active - No - Boost, Buck, Flyback, Forward 8 V 7.8V ~ 32V 50% Up to 500kHz - Current Limiting, Over Voltage Frequency Control, Soft Start -40°C ~ 85°C (TA) - - 18-PDIP Through Hole
UC3876N Texas Instruments

UC3876N

IC OFFLINE SW FULL-BRDG 20DIP

Texas Instruments

4,074 -
Datasheet - 20-DIP (0.300", 7.62mm) Bulk Obsolete Non-Isolated - - Full-Bridge 15.25 V 9.5V ~ 20V 100% 1MHz - Current Limiting Frequency Control, Soft Start, Sync 0°C ~ 70°C (TA) - - 20-PDIP Through Hole
UC3851DW Texas Instruments

UC3851DW

IC OFFLINE SW MULT TOP 18SOIC

Texas Instruments

2,653 -
Datasheet - 18-SOIC (0.295", 7.50mm Width) Bulk Obsolete - No - Boost, Buck, Flyback, Forward 8 V 7.8V ~ 32V 50% Up to 500kHz - Current Limiting, Over Voltage Frequency Control, Soft Start 0°C ~ 70°C (TA) - - 18-SOIC Surface Mount
UC3851DWTR Texas Instruments

UC3851DWTR

IC OFFLINE SW MULT TOP 18SOIC

Texas Instruments

4,042 -
Datasheet - 18-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Active - No - Boost, Buck, Flyback, Forward 8 V 7.8V ~ 32V 50% Up to 500kHz - Current Limiting, Over Voltage Frequency Control, Soft Start 0°C ~ 70°C (TA) - - 18-SOIC Surface Mount
FAN501AMPX Fairchild Semiconductor

FAN501AMPX

IC OFFLINE SWITCH FLYBACK 10MLP

Fairchild Semiconductor

33,000 -
Datasheet WSaver® 10-WQFN Exposed Pad Bulk Active Isolated No - Flyback 17.5 V 6V ~ 30V 68.5% 85kHz ~ 140kHz - Current Limiting, Over Temperature, Over Voltage - -40°C ~ 125°C (TA) - - 10-MLP (4x3) Surface Mount
FAN501MPX Fairchild Semiconductor

FAN501MPX

IC OFFLINE SWITCH FLYBACK 10MLP

Fairchild Semiconductor

33,000 -
Datasheet WSaver® 10-WQFN Exposed Pad Bulk Active Isolated No - Flyback 17.5 V 5.8V ~ 30V 68.5% 85kHz ~ 140kHz - Current Limiting, Over Temperature, Over Voltage - -40°C ~ 125°C (TA) - - 10-MLP (4x3) Surface Mount
FAN501ARMPX Fairchild Semiconductor

FAN501ARMPX

FAN501A - OFFLINE DCM/CCM FLYBAC

Fairchild Semiconductor

6,000 -
Datasheet * - Bulk Active - - - - - - - - - - - - - - - -
FAN7602MX Fairchild Semiconductor

FAN7602MX

FAN7602 - GREEN CURRENT MODE PWM

Fairchild Semiconductor

35,000 -
Datasheet * - Bulk Active - - - - - - - - - - - - - - - -
FAN6747ALMY onsemi

FAN6747ALMY

IC PWM CTLR GREEN MODE 8-SOIC

onsemi

29,980 -
Datasheet * - Bulk Active - - - - - - - - - - - - - - - -
FAN104WMX Fairchild Semiconductor

FAN104WMX

FAN104 - HIGH-FREQUENCY PRIMARY-

Fairchild Semiconductor

390,000 -
Datasheet TRUECURRENT™ 8-SOIC (0.154", 3.90mm Width) Bulk Active Isolated - - - - 5V ~ 21V - 80kHz ~ 90kHz - - - -40°C ~ 105°C - - 8-SOIC Surface Mount
FSL3276ALRN Fairchild Semiconductor

FSL3276ALRN

IC OFFLINE SWITCH MULT TOP 7DIP

Fairchild Semiconductor

6,000 -
Datasheet - 8-DIP (0.300", 7.62mm), 7 Leads Bulk Active Non-Isolated Yes 650V Buck, Buck-Boost, Flyback 8 V 7V ~ 26V - 50kHz 2.4 W Current Limiting, Open Loop, Over Load, Over Temperature, Over Voltage - -40°C ~ 125°C (TJ) - - 7-DIP Through Hole
SG5841SZ Analog Devices Inc.

SG5841SZ

SG5841 - Green-Mode PWM Controll

Analog Devices Inc.

19,533 -
Datasheet - - Bulk Active - - - - - - - - - - - - - - - -
NCP1070P100G onsemi

NCP1070P100G

HIGH-VOLTAGE SWITCHER REGULATOR

onsemi

4,600 -
Datasheet * - Bulk Active - - - - - - - - - - - - - - - -
FAN302ULMY Fairchild Semiconductor

FAN302ULMY

IC OFFLINE SWITCH FLYBACK 8SOIC

Fairchild Semiconductor

20,000 -
Datasheet mWSaver™ 8-SOIC (0.154", 3.90mm Width) Bulk Active Isolated No - Flyback 16 V 5V ~ 25V 64% 140kHz - Current Limiting, Over Temperature, Over Voltage - -40°C ~ 105°C (TA) - - 8-SOIC Surface Mount
FSQ321L onsemi

FSQ321L

IC REG

onsemi

6,500 -
Datasheet * - Bulk Active - - - - - - - - - - - - - - - -
FAN6300DY Fairchild Semiconductor

FAN6300DY

FAN6300 - SWITCHING CONTROLLER,

Fairchild Semiconductor

2,819 -
Datasheet * - Bulk Active - - - - - - - - - - - - - - - -
FSL137HNY Fairchild Semiconductor

FSL137HNY

FSL137 - 700V INTEGRATED POWER S

Fairchild Semiconductor

30,000 -
Datasheet * - Bulk Active - - - - - - - - - - - - - - - -
NCP1071P100G onsemi

NCP1071P100G

HIGH-VOLTAGE SWITCHER FOR LOW PO

onsemi

16,400 -
Datasheet * - Bulk Active - - - - - - - - - - - - - - - -
NCP1011ST100T3G onsemi

NCP1011ST100T3G

Switching Regulator, Current-mod

onsemi

230,235 -
Datasheet NCP101X TO-261-4, TO-261AA Tape & Reel (TR) Obsolete Isolated Yes 700V Flyback - 8.5V ~ 10V 67% 100kHz 19 W Over Load, Over Temperature, Over Voltage Frequency Control, Soft Start 150°C (TJ) - - SOT-223 (TO-261) Surface Mount
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WINSUN SOURCING SUPPORT

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FREQUENTLY ASKED QUESTIONS

AC DC Converters, Offline Switches FAQ

Common questions about selecting, comparing and sourcing AC DC Converters, Offline Switches components through Winsun (HK) Electronics.

What should I check when selecting AC DC Converters, Offline Switches components?

Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.

Can Winsun help source specific AC DC Converters, Offline Switches part numbers?

Yes. Send the exact part number, manufacturer and required quantity. Winsun (HK) Electronics can assist with availability checks, quotation support and sourcing options based on your requirement.

Do you support shortage, obsolete or hard-to-find AC DC Converters, Offline Switches parts?

Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.

How do I request a quote for AC DC Converters, Offline Switches components?

Submit an RFQ with the part number, manufacturer, quantity and target delivery requirement. Our sales team will review your request and follow up with current sourcing information.