EN
  • EN
  • DE
loading
Mfr. Part No. Qty. Price

No items in the cart

View Cart
Same model may have multiple batches, images only for reference.
TOP249Y Real Image
Same model may have multiple batches, images only for reference.

TOP249Y

Part No TOP249Y
Manufacturer Power Integrations
Catalog PMIC - AC DC Converters, Offline Switchers
Description Family Extended Power, Design Flexible,Integrated Off-line Switcher | IC OFFLINE SWIT UVLO HV TO220
Sample
Rohs State Need to verify
ECAD Module
Need Help

Products specifications Report Issue?

Categories Integrated Circuits
Manufacturer Power Integrations
Packaging Bulk
Status Obsolete
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 700V
Topology Flyback
Duty Cycle 66.8%
Switching Frequency 66kHz ~ 132kHz
Power (W) 250W
Fault Protection Current Limiting, Over Temperature, Over Voltage
Control Features Frequency Control
Temperature Range - Operating -40°C ~ 150°C
Manufacturer Package TO-220-7 (Formed Leads), 6 Leads
Supplier Device Package TO-220-7C
Mounting Style Through Hole
Manufacturer Pack Quantity 2,000
MSL Level 1 (Unlimited)
Win Source Part Number 1271635-TOP249Y
Manufacturer Homepage www.powerint.com
Popularity Medium
Supply and Demand Status Limited
Ultra Librarian 3D Model Ultra Librarian TOP249Y CAD Model

Description

The TOP249Y is a flyback topology integrated circuit from Power Integrations.

  • Manufacturer: Power Integrations
  • Product: TOP249Y
  • Topology: Flyback
  • Output Isolation: Yes
  • Internal Switch(s): Yes
  • Voltage Breakdown: 700V
  • Duty Cycle: 66.8%
  • Fault Protection: Current Limiting, Over Temperature, Over Voltage
  • Switching Frequency: 66kHz ~ 132kHz
  • Power Rating: 250W
  • Packaging: Bulk
  • Mounting Style: TO-220-7C with formed leads

You May Also Be Interested in

NCP1076BAP065G ON Semiconductor
NCP1076BAP065G
ON Semiconductor
IC OFFLINE SWITCH FLYBACK 8DIP
Lowest to $1.5356
NCP1399ASDR2G ON Semiconductor
NCP1399ASDR2G
ON Semiconductor
IC OFFLINE SW HALF-BRDG 16SOIC
Lowest to $2.0783
IDP2303AXUMA1 Infineon Technologies
IDP2303AXUMA1
Infineon Technologies
IC OFFLINE SW HALF-BRDG 16DSO / Converter Offline Half-Bridge Topology 100kHz ~ 600kHz PG-DSO-16
Lowest to $6.7503
HF01B01DP-LF Monolithic Power Systems Inc.
HF01B01DP-LF
Monolithic Power Systems Inc.
IC OFFLINE SWITCH FLYBACK 8DIP / Converter Offline Flyback Topology Up to 150kHz 8-PDIP-7B
Need more? Email Us
AP3984MTR-G1 Real Image
AP3984MTR-G1
Diodes Incorporated
IC OFFLINE SWITCH FLYBACK 7SO / Converter Offline Flyback Topology 60kHz 7-SO
Lowest to $1.1142
FSCM0465RJ Real Image
FSCM0465RJ
ON Semiconductor
IC OFFLINE SW FLYBACK D2PAK-6 / Converter Offline Flyback Topology 66kHz D²PAK-6
Need more? Email Us
IW1799-32B Renesas Electronics America
IW1799-32B
Renesas Electronics America
IC OFFLIN CONV SEC SIDE SR 8SOIC
Need more? Email Us
NCP1340B8D1R2G ON Semiconductor
NCP1340B8D1R2G
ON Semiconductor
IC OFFLINE SWITCH FLYBACK 9SOIC
Lowest to $4.3657
VIPER0PHDTR Real Image1
VIPER0PHDTR
STMicroelectronics
IC OFFLINE SWITCH MULT TOP 16SO / Converter Offline Buck, Buck-Boost, Flyback Topology 120kHz 16-SO
Need more? Email Us

Top Sellers

NTA4153NT1G real image4110
NTA4153NT1G
ON Semiconductor
MOSFET N-CH 20V 915MA SOT-416
Lowest to $0.0543
RTL8211FI-CG real image16071
RTL8211FI-CG
Realtek
INTEGRATED 10/100/1000M ETHERNET TRANSCEIVER
Lowest to $2.4354
FT4232HL real image4446
FT4232HL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $13.0677
SSD1963QL9 real image6483
SSD1963QL9
Solomon
LCD Display Controller 128-Pin LQFP Tray
Lowest to $4.1579
FT230XS-R real image4301
FT230XS-R
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $6.2963
PI3740-00-LGIZ real image
PI3740-00-LGIZ
Vicor Corporation
DC DC CONVERTER 10-50V / 8V – 60VIN , 10V – 50VOUT , 50 – 140W Cool-Power ZVS Buck-Boost Regulator
Lowest to $32.0752
74HC595D,118 label picture
74HC595D,118
Nexperia USA Inc.
Counter Shift Registers 8-bit serial-in, serial or parallel-out shift register with output latches; 3 - state
Lowest to $0.0951
BMI160 real image
BMI160
Bosch Sensortec
IMU ACCEL/GYRO I2C/SPI 14LGA / Accelerometer, Gyroscope, 6 Axis Sensor I2C, SPI Output
Lowest to $3.8016
TPSM63606RDLR Real Image
TPSM63606RDLR
Texas Instruments
DC DC CONVERTER 1-16V / Non-Isolated PoL Module DC DC Converter 1 Output 1 ~ 16V 6A 3V - 36V Input
Lowest to $13.0101
ULN2803ADWR real image9675
ULN2803ADWR
Texas Instruments
TRANS 8NPN DARL 50V 0.5A 18SO
Lowest to $4.7519
ICM-42605 real image24295
ICM-42605
TDK InvenSense
IMU ACCEL/GYRO/TEMP I2C/SPI LGA
Lowest to $10.6918
AR8033-AL1A real image2016
AR8033-AL1A
Atheros
Ethernet TXRX Single Chip 1-Port 3.3V 10Mbps/100Mbps/1000Mbps 48-Pin QFN EP Tray
Lowest to $2.6071
DRV8432DKD Real Image1
DRV8432DKD
Texas Instruments
IC BRIDGE DRIVER PAR 36HSSOP
Lowest to $19.3374
EPM3128ATC100-10N real image
EPM3128ATC100-10N
Altera
IC CPLD 128MC 10NS 100TQFP
Lowest to $3.3015
FT230XS-U real image21586
FT230XS-U
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $6.4151

Pricing & Ordering

Quantity Unit Price Ext. Price
15+ $4.0344 $60.5160
35+ $3.3102 $115.8570
55+ $3.2074 $176.4070
75+ $3.1035 $232.7625
97+ $2.9995 $290.9515
129+ $2.6900 $347.0100
* Prices exclude shipping and taxes. Shipping costs are calculated at checkout.
Estimate Shipping
Enter your destination to get a shipping estimate
*
Availability: 74,000 pieces
MOQ: 15 pcs
Order Increment : 1 pcs
*Need More Quantity? *Request a Bulk Quantity Quotation?
Ordering Guidelines

Shipping Information

Shipped from HK warehouse
Expected Shipping Date
Ship today if order in (HKT)
Supplier Lead-Time Call for availability
Estimate shipping fee
Enter your destination to get a shipping estimate
Estimate Shipping Fee

Contact Us

*
*
*

FRAUD PREVENTION REMINDERS

Recently, We have discovered that criminals falsely claimed to be WIN SOURCE to commit fraud. Please note that the only official website & email suffix are win-source.group, win-source.net, winsourcectl.com and winsourceelec.com

More details about fraud prevention
About Us
Customer Service
Solutions
Copyright © 2026 WIN SOURCE. All rights reserved.
For detailed contact information and office addresses in our key locations, including Irvine, Munich, Toronto, Singapore, Seoul, Bangalore, Bologna, Yamanashi, Hong Kong, and Mainland China, please visit our website.
Trust Guard Security Scanned
RFQ RFQ RFQ BOM BOM BOM API API API Sell Sell Sell your Excess