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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
NCP1077P065G onsemi

NCP1077P065G

IC OFFLINE SWITCH FLYBACK 7DIP

onsemi

1,960 -
Datasheet - 8-DIP (0.300", 7.62mm), 7 Leads Tube Obsolete Isolated Yes 700V Flyback 8.1 V 6.3V ~ 10V 69% 65kHz 25 W Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit - -40°C ~ 125°C (TJ) - - 7-PDIP Through Hole
NCP1237BD65R2G onsemi

NCP1237BD65R2G

IC OFFLINE SWITCH FLYBACK 7SOIC

onsemi

1,418 -
Datasheet - 8-SOIC (0.154", 3.90mm Width), 7 Leads Tape & Reel (TR) Obsolete Isolated No - Flyback 12 V 9.5V ~ 28V 80% 65kHz - Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit - -40°C ~ 150°C (TJ) - - 7-SOIC Surface Mount
NCP1230D100R2G onsemi

NCP1230D100R2G

IC OFFLINE SWITCH FLYBACK 8SOIC

onsemi

4,212 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Obsolete Isolated No - Flyback 12.6 V 7.7V ~ 18V 80% 100kHz - Current Limiting, Over Temperature, Over Voltage, Short Circuit - -40°C ~ 125°C (TJ) - - 8-SOIC Surface Mount
LM5021MM-2 National Semiconductor

LM5021MM-2

IC OFFLINE SW MULT TOP 8VSSOP

National Semiconductor

4,000 -
Datasheet - 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Bulk Active Isolated No - Flyback, Forward 20 V 8V ~ 30V 50% Up to 1MHz - Current Limiting, Over Load Frequency Control, Soft Start, Sync -40°C ~ 125°C (TJ) - - 8-VSSOP Surface Mount
NCP1054ST44T3G onsemi

NCP1054ST44T3G

IC OFFLINE SWITCH FLYBACK SOT223

onsemi

3,807 -
Datasheet - TO-261-4, TO-261AA Tape & Reel (TR) Obsolete Isolated Yes 700V Flyback 8.5 V 7.5V ~ 10V 77% 44kHz 40 W Current Limiting, Open Loop, Over Load, Over Temperature - -40°C ~ 150°C (TJ) - - SOT-223 (TO-261) Surface Mount
SC1399AEDR2G onsemi

SC1399AEDR2G

IC OFFLINE SWITCH

onsemi

40,000 -
Datasheet * - Bulk Active - - - - - - - - - - - - - - - -
NCP1129BP65G onsemi

NCP1129BP65G

IC OFFLINE SWITCH FLYBACK 7DIP

onsemi

1,399 -
Datasheet - 8-DIP (0.300", 7.62mm), 7 Leads Bulk Obsolete Isolated Yes 650V Flyback 17 V 8.5V ~ 35V 80% 65kHz 43 W Over Load, Over Temperature, Over Voltage, Short Circuit - -40°C ~ 150°C (TJ) - - 7-PDIP Through Hole
NCP1129AP100G onsemi

NCP1129AP100G

IC OFFLINE SWITCH FLYBACK 7DIP

onsemi

2,575 -
Datasheet - 8-DIP (0.300", 7.62mm), 7 Leads Bulk Obsolete Isolated Yes 650V Flyback 17 V 8.8V ~ 35V 80% 100kHz 43 W Over Load, Over Temperature, Over Voltage, Short Circuit - -40°C ~ 150°C (TJ) - - 7-PDIP Through Hole
NCP1280DR2 onsemi

NCP1280DR2

IC OFFLINE SW MULT TOP 16SOIC

onsemi

3,678 -
Datasheet - 16-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Obsolete Isolated No 700V Forward, Secondary Side SR 11 V 7V ~ 25V 62%, 80% 150kHz ~ 300kHz - Current Limiting, Over Voltage Frequency Control, Soft Start -40°C ~ 125°C (TJ) - - 16-SOIC Surface Mount
NCP1339IDR2G onsemi

NCP1339IDR2G

IC OFFLINE SWITCH FLYBACK 14SOIC

onsemi

1,664 -
Datasheet - 14-SOIC (0.154", 3.90mm Width), 13 Leads Tape & Reel (TR) Obsolete Isolated No - Flyback 15 V 10V ~ 28V - - - Current Limiting, Over Temperature, Over Voltage - -40°C ~ 125°C (TJ) - - 14-SOIC Surface Mount
NCP1238AD65R2G onsemi

NCP1238AD65R2G

IC OFFLINE SWITCH FLYBACK 7SOIC

onsemi

4,287 -
Datasheet - 8-SOIC (0.154", 3.90mm Width), 7 Leads Tape & Reel (TR) Obsolete Isolated No - Flyback 12 V 9.5V ~ 28V 80% 65kHz - Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit - -40°C ~ 150°C (TJ) - - 7-SOIC Surface Mount
AP3125LKTR-G1 Diodes Incorporated

AP3125LKTR-G1

IC OFFLINE SWITCH FLYBACK SOT26

Diodes Incorporated

2,975 -
Datasheet - SOT-23-6 Tape & Reel (TR) Obsolete Isolated No - Flyback 15.8 V 10V ~ 25V 75% 65kHz - Current Limiting, Over Load, Over Temperature, Over Voltage - -40°C ~ 150°C (TJ) - - SOT-26 Surface Mount
NCP1339GDR2G onsemi

NCP1339GDR2G

IC OFFLINE SWITCH FLYBACK 14SOIC

onsemi

3,442 -
Datasheet - 14-SOIC (0.154", 3.90mm Width), 13 Leads Tape & Reel (TR) Obsolete Isolated No - Flyback 15 V 10V ~ 28V - - - Current Limiting, Over Load, Over Temperature, Over Voltage - -40°C ~ 125°C (TJ) - - 14-SOIC Surface Mount
NCP1002PG onsemi

NCP1002PG

IC OFFLINE SWITCH MULT TOP 8DIP

onsemi

3,352 -
Datasheet - 8-DIP (0.300", 7.62mm) Tube Obsolete Isolated Yes 700V Flyback, Forward 8.5 V 7.5V ~ 10V 72% 100kHz - Current Limiting, Over Temperature - -40°C ~ 125°C (TJ) - - 8-PDIP Through Hole
MIC38C42ABMM Microchip Technology

MIC38C42ABMM

IC OFFLINE SWITCH MULT TOP 8MSOP

Microchip Technology

1,180 -
Datasheet - 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Bulk Obsolete Isolated Yes - Boost, Buck, Flyback, Forward 14.5 V 9V ~ 20V 96% 500kHz - - Frequency Control -40°C ~ 150°C (TJ) - - 8-MSOP Surface Mount
MIC38HC42BM Microchip Technology

MIC38HC42BM

IC OFFLINE SWITCH MULT TOP 8SOIC

Microchip Technology

64,186 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Bulk Obsolete Isolated Yes - Boost, Buck, Flyback, Forward 14.5 V 9V ~ 20V 96% 500kHz - - Frequency Control -40°C ~ 150°C (TJ) - - 8-SOIC Surface Mount
MIC38HC44BM Microchip Technology

MIC38HC44BM

IC OFFLINE SWITCH MULT TOP 8SOIC

Microchip Technology

15,971 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Bulk Obsolete Isolated Yes - Boost, Buck, Flyback, Forward 14.5 V 9V ~ 20V 50% 500kHz - - Frequency Control -40°C ~ 150°C (TJ) - - 8-SOIC Surface Mount
MIC38HC44BM TR Microchip Technology

MIC38HC44BM TR

BICMOS 1A CURRENT-MODE PWM CONTR

Microchip Technology

7,500 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Bulk Active Isolated Yes - Boost, Buck, Flyback, Forward 14.5 V 9V ~ 20V 50% 500kHz - - Frequency Control -40°C ~ 150°C (TJ) - - 8-SOIC Surface Mount
FSCQ0565RTYDTU Fairchild Semiconductor

FSCQ0565RTYDTU

IC OFFLINE SW FLBACK TO220F-5L

Fairchild Semiconductor

57,350 -
Datasheet FPS™ TO-220-5 Full Pack, Formed Leads Bulk Active Isolated Yes 650V Flyback 15 V 9V ~ 20V 95% 20kHz 70 W Current Limiting, Over Load, Over Temperature, Over Voltage Sync -25°C ~ 85°C (TA) - - TO-220F-5L (Forming) Through Hole
NCP1076P130G onsemi

NCP1076P130G

IC OFFLINE SWITCH FLYBACK 7DIP

onsemi

1,434 -
Datasheet - 8-DIP (0.300", 7.62mm), 7 Leads Bulk Obsolete Isolated Yes 700V Flyback 8.1 V 6.3V ~ 10V 69% 130kHz 25 W Over Load, Over Temperature, Over Voltage, Short Circuit - -40°C ~ 125°C (TJ) - - 7-PDIP Through Hole
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WINSUN SOURCING SUPPORT

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Send the manufacturer, part number, quantity and target delivery requirement. Winsun (HK) Electronics can assist with availability checks, quotation support, shortage sourcing and hard-to-find or obsolete components.

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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.