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HomeProductsIntegrated Circuits (ICs)PMIC - AC DC Converters, Offline SwitchersNCP1051ST44T3
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NCP1051ST44T3 - onsemi

Manufacturer Part Number
NCP1051ST44T3
Manufacturer
onsemi
Allelco Part Number
32D-NCP1051ST44T3
ECAD Model
Parts Description
IC OFFLINE SWITCH FLYBACK SOT223
Package
TO-261-4, TO-261AA
Data sheet
Cylindrical Battery Holders.pdf
NCP1050-1055.pdf
Our certification
In stock: 17190

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Specifications

NCP1051ST44T3 Tech Specifications
onsemi - NCP1051ST44T3 technical specifications, attributes, parameters and parts with similar specifications to onsemi - NCP1051ST44T3

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 RoHS non-compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

NCP1051ST44T3

Manufacturer

onsemi

Introduction

The NCP1051ST44T3 is a high-performance 40W offline AC-DC flyback converter integrated circuit (IC) from onsemi. It is designed for use in a wide range of power supply applications, providing a reliable and efficient power conversion solution.

Product Features and Performance

Isolated flyback topology with an internal 700V power switch

Wide input voltage range from 8.5V to 10V for the startup and operating supply voltage

44kHz fixed-frequency switching for efficient operation

77% duty cycle capability for high power delivery

Comprehensive fault protection including current limiting, open loop, overload, and over-temperature

Operates over an extended temperature range of -40°C to 150°C (TJ)

Available in a space-saving TO-261-4 (SOT-223) surface mount package

Product Advantages

Robust and reliable power conversion performance

Efficient design with high power density

Comprehensive protection features for enhanced safety and reliability

Suitable for a wide range of applications due to its versatile design

Key Reasons to Choose This Product

Proven onsemi quality and reliability

Optimized performance for demanding power supply applications

Compact and space-saving package for efficient board layout

Extensive fault protection for enhanced system reliability

Quality and Safety Features

Robust design and high-quality components ensure long-term reliability

Comprehensive protection features safeguard the device and connected systems

Complies with relevant safety standards for reliable and safe operation

Compatibility

The NCP1051ST44T3 is designed to be compatible with a wide range of power supply applications, including consumer electronics, industrial equipment, and medical devices.

Application Areas

AC-DC power supplies

Offline power converters

Household appliances

Industrial automation and control systems

Medical equipment

Product Lifecycle

The NCP1051ST44T3 is an obsolete product, meaning it is no longer in active production. However, onsemi may have alternative or equivalent models available that could be suitable replacements. Customers are advised to contact our website's sales team for more information on available options and potential alternatives.

Parts with Similar Specifications

The three parts on the right have similar specifications to onsemi NCP1051ST44T3

Product Attribute NCP1051ST44T3 NCP1050ST136T3 NCP1050ST100T3 NCP1052P100
Part Number NCP1051ST44T3 NCP1050ST136T3 NCP1050ST100T3 NCP1052P100
Manufacturer onsemi onsemi onsemi onsemi
Control Features - - - -
Mounting Type Surface Mount Surface Mount Surface Mount Through Hole
Package / Case TO-261-4, TO-261AA TO-261-4, TO-261AA TO-261-4, TO-261AA 8-DIP (0.300', 7.62mm), 7 Leads
Voltage - Breakdown 700V 700V 700V 700V
Base Product Number NCP1051 NCP1050 NCP1050 NCP1052
Topology Flyback Flyback Flyback Flyback
Voltage - Start Up 8.5 V 8.5 V 8.5 V 8.5 V
Duty Cycle 77% 77% 77% 77%
Internal Switch(s) Yes Yes Yes Yes
Voltage - Supply (Vcc/Vdd) 7.5V ~ 10V 7.5V ~ 10V 7.5V ~ 10V 7.5V ~ 10V
Output Isolation Isolated Isolated Isolated Isolated
Frequency - Switching 44kHz 136kHz 100kHz 100kHz
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tube
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
Power (Watts) 40 W 40 W 40 W 40 W
Series - - - -
Operating Temperature -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ)
Supplier Device Package SOT-223 (TO-261) SOT-223 (TO-261) SOT-223 (TO-261) 7-PDIP

NCP1051ST44T3 Datasheet PDF

Download NCP1051ST44T3 pdf datasheets and onsemi documentation for NCP1051ST44T3 - onsemi.

Datasheets
Cylindrical Battery Holders.pdf
Environmental Information
onsemi RoHS.pdf onsemi REACH.pdf
PCN Obsolescence/ EOL
Cylindrical Battery Holders.pdf
HTML Datasheet
NCP1050-1055.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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NCP1051ST44T3 Image

NCP1051ST44T3

onsemi
32D-NCP1051ST44T3

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