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HomeProductsIntegrated Circuits (ICs)PMIC - AC DC Converters, Offline SwitchersTOP261YN
TOP261YN Image
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TOP261YN - Power Integrations

Manufacturer Part Number
TOP261YN
Manufacturer
Power Integrations
Allelco Part Number
32D-TOP261YN
Warranty
1 Year Allelco Warranty - Find out more
Parts Description
IC OFFLINE SW FLYBACK TO220-7C
Package
TO-220-7C
Data sheet
1.TOP261YN.pdf ...

Datasheets

TOP252-62.pdf
RoHs Status
RoHS Compliant
Our certification
In stock: 17490
  • Unit Price: $3.56
  • Subtotal: $0.00

Want a better price?
Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $3.56 $3.56
10+ $3.118 $31.18
50+ $2.855 $142.75
100+ $2.59 $259.00
500+ $2.467 $1,233.50
1000+ $2.412 $2,412.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.
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Payment method
Our certification

Specifications

TOP261YN Tech Specifications
Power Integrations - TOP261YN technical specifications, attributes, parameters and parts with similar specifications to Power Integrations - TOP261YN

Product Attribute Attribute Value  
Manufacturer Power Integrations  
Voltage - Supply (Vcc/Vdd) -  
Voltage - Breakdown 700V  
Topology Flyback  
Supplier Device Package TO-220-7C  
Series TOPSwitch®-HX  
Power (Watts) 333 W  
Package / Case TO-220-7 Formed Leads, 6 Leads  
Package Tube  
Product Attribute Attribute Value  
Output Isolation Isolated  
Operating Temperature -40°C ~ 150°C (TJ)  
Mounting Type Through Hole  
Internal Switch(s) Yes  
Frequency - Switching 66kHz  
Fault Protection Current Limiting, Over Temperature, Over Voltage  
Duty Cycle 78%  
Control Features -  
Base Product Number TOP261  

Environmental & Export Classifications

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

Parts Introduction

Manufacturer Part Number

TOP261YN

Manufacturer

power-integrations

Introduction

The TOP261YN is a high-performance offline power supply controller from Power Integrations. It offers a comprehensive set of features and protection mechanisms to enable the design of reliable and efficient power supplies for a wide range of applications.

Product Features and Performance

Integrated 700V power switch for high-voltage operation

Flyback topology for versatile power conversion

High-efficiency operation with up to 78% duty cycle

Switching frequency of 66kHz for compact transformer design

Supports output power up to 333 watts

Comprehensive fault protection including current limiting, over-temperature, and over-voltage

Product Advantages

Streamlined design with integrated power switch for reduced component count

High power density and efficiency for compact power supply solutions

Robust fault protection for enhanced reliability and safety

Key Reasons to Choose This Product

Exceptional performance and reliability for critical power supply applications

Ease of design and implementation with integrated functionality

Versatile and scalable power conversion capabilities

Quality and Safety Features

Designed and manufactured to the highest quality standards

Robust protection mechanisms for safe and reliable operation

Complies with relevant safety and regulatory requirements

Compatibility

The TOP261YN is designed to be compatible with a wide range of power supply applications, including consumer electronics, industrial equipment, and telecommunications systems.

Application Areas

Offline power supplies for consumer electronics

Industrial and commercial power supplies

Telecommunications and networking equipment

Lighting and industrial automation applications

Product Lifecycle

The TOP261YN is an active product in Power Integrations' TOPSwitch®-HX series. There are currently no plans for discontinuation, and Power Integrations continues to offer this model and its variants to meet the evolving needs of the market. If you require further information or assistance, please contact our sales team through our website.

Parts with Similar Specifications

The three parts on the right have similar specifications to Power Integrations TOP261YN

Product Attribute TOP261EN TOP260YN TOP261LN TOP261LG
Part Number TOP261EN TOP260YN TOP261LN TOP261LG
Manufacturer Power Integrations Power Integrations Power Integrations Power Integrations
Output Isolation - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Power (Watts) - - - -
Internal Switch(s) - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Series - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Voltage - Supply (Vcc/Vdd) - - - -
Fault Protection - - - -
Topology - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Control Features - - - -
Voltage - Breakdown - - - -
Frequency - Switching - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Base Product Number - DAC34H84 MAX500 ADS62P42
Duty Cycle - - - -

TOP261YN Datasheet PDF

Download TOP261YN pdf datasheets and Power Integrations documentation for TOP261YN - Power Integrations.

Datasheets
TOP252-62.pdf
PCN Assembly/Origin
Assembly Site Addition 15/May/2014.pdf

Customer Reviews

Evaluation: 10 Articles

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

  • Kevi***.
    Mar 17, 2026

    Fast switching and stable output. Very satisfied with this IC

  • Daou***hekebkeb
    Jun 16, 2024

    I had a great experience purchasing items from Allelcoelec, I recommend

  • Uri ***al
    Jun 19, 2024

    Good comunication,
    Transpnt regarding the process and price.

  • Yaqu***l Ali
    Jun 19, 2024

    Providing reasonable prices, regular follow-up of orders, providing accurate and regular invoices, timely delivery of goods, excellent customer service and providing original goods and best quality materials.

  • Lea ***
    Jun 19, 2024

    Morrey was very helpful and right on top of things!
    He replied quickly to my RFQ. He was very courteous and professional.

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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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TOP261YN Image

TOP261YN

Power Integrations
32D-TOP261YN

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