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HomeProductsIntegrated Circuits (ICs)PMIC - AC DC Converters, Offline SwitchersNCP1051ST44T3G
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NCP1051ST44T3G - onsemi

Manufacturer Part Number
NCP1051ST44T3G
Manufacturer
onsemi
Allelco Part Number
32D-NCP1051ST44T3G
ECAD Model
Parts Description
IC OFFLINE SWITCH FLYBACK SOT223
Package
TO-261-4, TO-261AA
Data sheet
Cylindrical Battery Holders.pdf
NCP1050-1055.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 13090

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Specifications

NCP1051ST44T3G Tech Specifications
onsemi - NCP1051ST44T3G technical specifications, attributes, parameters and parts with similar specifications to onsemi - NCP1051ST44T3G

Product Attribute Attribute Value  
Manufacturer onsemi  
Voltage - Supply (Vcc/Vdd) 7.5V ~ 10V  
Voltage - Start Up 8.5 V  
Voltage - Breakdown 700V  
Topology Flyback  
Supplier Device Package SOT-223 (TO-261)  
Series -  
Power (Watts) 40 W  
Package / Case TO-261-4, TO-261AA  
Package Tape & Reel (TR)  
Product Attribute Attribute Value  
Output Isolation Isolated  
Operating Temperature -40°C ~ 150°C (TJ)  
Mounting Type Surface Mount  
Internal Switch(s) Yes  
Frequency - Switching 44kHz  
Fault Protection Current Limiting, Open Loop, Over Load, Over Temperature  
Duty Cycle 77%  
Control Features -  
Base Product Number NCP1051  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

NCP1051ST44T3G

Manufacturer

onsemi

Introduction

The NCP1051ST44T3G is an offline power supply controller from onsemi. It is a highly integrated, single-chip flyback controller with a high-voltage start-up circuit, current-mode control, and advanced protection features. This controller is designed for offline power supplies and AC-DC converters in a wide range of applications.

Product Features and Performance

Isolated flyback topology with up to 700V breakdown voltage

Internal high-voltage startup circuit

Current-mode control for improved line and load regulation

44 kHz fixed-frequency operation

Up to 77% duty cycle

40W power capability

Advanced protection features including current limiting, open-loop, overload, and over-temperature protection

Product Advantages

Highly integrated solution reducing component count and cost

Robust protection features ensure reliable and safe operation

Fixed-frequency operation simplifies transformer design

Wide operating temperature range of -40°C to 150°C

Key Reasons to Choose This Product

Reliable and efficient offline power supply control

Compact and cost-effective solution

Suitable for a wide range of AC-DC conversion applications

Excellent protection against various fault conditions

Quality and Safety Features

Robust design with advanced protection mechanisms

Complies with safety standards for offline power supplies

Suitable for use in harsh environments

Compatibility

Designed for use in offline power supplies and AC-DC converters

Can be integrated into a variety of electronic devices and systems

Application Areas

Consumer electronics

Industrial equipment

Household appliances

Medical devices

Telecommunications equipment

Product Lifecycle

The NCP1051ST44T3G is an obsolete product, meaning it is no longer in active production. However, there may still be limited stock available. If you require this specific model or need assistance finding a suitable alternative, please contact our website's sales team for more information.

Parts with Similar Specifications

The three parts on the right have similar specifications to onsemi NCP1051ST44T3G

Product Attribute NCP1051ST44T3G NCP1050ST136T3G NCP1052P100 NCP1050ST100T3G
Part Number NCP1051ST44T3G NCP1050ST136T3G NCP1052P100 NCP1050ST100T3G
Manufacturer onsemi onsemi onsemi onsemi
Mounting Type Surface Mount Surface Mount Through Hole Surface Mount
Fault Protection Current Limiting, Open Loop, Over Load, Over Temperature Current Limiting, Open Loop, Over Load, Over Temperature Current Limiting, Open Loop, Over Load, Over Temperature Current Limiting, Open Loop, Over Load, Over Temperature
Output Isolation Isolated Isolated Isolated Isolated
Duty Cycle 77% 77% 77% 77%
Frequency - Switching 44kHz 136kHz 100kHz 100kHz
Series - - - -
Package Tape & Reel (TR) Tape & Reel (TR) Tube Tape & Reel (TR)
Internal Switch(s) Yes Yes Yes Yes
Base Product Number NCP1051 NCP1050 NCP1052 NCP1050
Power (Watts) 40 W 40 W 40 W 40 W
Supplier Device Package SOT-223 (TO-261) SOT-223 (TO-261) 7-PDIP SOT-223 (TO-261)
Topology Flyback Flyback Flyback Flyback
Control Features - - - -
Voltage - Breakdown 700V 700V 700V 700V
Package / Case TO-261-4, TO-261AA TO-261-4, TO-261AA 8-DIP (0.300', 7.62mm), 7 Leads TO-261-4, TO-261AA
Voltage - Start Up 8.5 V 8.5 V 8.5 V 8.5 V
Voltage - Supply (Vcc/Vdd) 7.5V ~ 10V 7.5V ~ 10V 7.5V ~ 10V 7.5V ~ 10V
Operating Temperature -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ)

NCP1051ST44T3G Datasheet PDF

Download NCP1051ST44T3G pdf datasheets and onsemi documentation for NCP1051ST44T3G - onsemi.

Datasheets
Cylindrical Battery Holders.pdf
Environmental Information
onsemi RoHS.pdf onsemi REACH.pdf Material Declaration NCP1051ST44T3G.pdf
HTML Datasheet
NCP1050-1055.pdf
PCN Obsolescence/ EOL
Cylindrical Battery Holders.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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NCP1051ST44T3G

onsemi
32D-NCP1051ST44T3G

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