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.
TOP257EN Real Image
Same model may have multiple batches, images only for reference.

TOP257EN

Part No TOP257EN
Manufacturer Power Integrations
Catalog PMIC - AC DC Converters, Offline Switchers
Description IC OFFLINE SWIT PROG OVP 7CESIP
Datasheet
TOP257EN Datasheet
Sample
Rohs State rohs
ECAD Module
Need Help

Products specifications Report Issue?

Categories Integrated Circuits
Manufacturer Power Integrations
Packaging Tube/Rail
Status Active
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 700V
Topology Flyback
Duty Cycle 78%
Frequency - Switching 66kHz, 132kHz
Power (Watts) 157W
Fault Protection Current Limiting, Over Temperature, Over Voltage
Control Operating Temperature -40°C to 150°C (TJ)
Case / Package eSIP-7C
Mounting Through Hole
Win Source Part Number 053547-TOP257EN
Family Name TOP257
Introduction Date August 01, 2008
ECCN EAR99
Estimated EOL Date 2022
Is this a common-used part? Yes
Popularity High
Supply and Demand Status Balance
Ultra Librarian 3D Model Ultra Librarian TOP257EN CAD Model

Description

The TOP257EN is an active electronic component manufactured by Power Integrations.

  • Output Isolation: isolated
  • Power: 157W
  • Internal Switches: yes
  • Voltage Breakdown: 700V
  • Topology: flyback
  • Duty Cycle: 78%
  • Switching Frequency: 66kHz, 132kHz
  • Fault Protection: current limiting, over temperature, and overvoltage
  • Mounting Type: through-hole
  • Case/Package: eSIP-7C
  • Family Name: TOP257
  • Usage: widely used in integrated circuits

You May Also Be Interested in

IW1706-01 Dialog Semiconductor GmbH
IW1706-01
Renesas Electronics America
IC OFFLINE SW FLYBACK SOT23-5
Lowest to $0.2945
FAN6752MY ON Semiconductor
FAN6752MY
ON Semiconductor
IC OFFLINE SWITCH / Converter Offline Topology
Lowest to $0.6255
AP3772AK6TR-G1 Diodes Incorporated
AP3772AK6TR-G1
Diodes Incorporated
IC REG CONTROLLER ACDC
Lowest to $7.1737
FAN6752WMY ON Semiconductor
FAN6752WMY
Fairchild/ON Semiconductor
HIGHLY INTEGRATED GREEN-MODE PWM / Converter Offline Topology
Lowest to $1.2913
FSD106LG ON Semiconductor
FSD106LG
Fairchild/ON Semiconductor
IC OFFLINE SWITCH / Converter Offline Topology
Lowest to $4.8914
FAN104WMX Real Image
FAN104WMX
Fairchild/ON Semiconductor
FAN104 - HIGH-FREQUENCY PRIMARY-
Lowest to $4.5934
AP3967MTR-G1 Diodes Incorporated
AP3967MTR-G1
Diodes Incorporated
IC OFFLINE SWITCH MULT TOP 7SOIC
Lowest to $0.4250
FSFR1800XC
FSFR1800XC
Fairchild/ON Semiconductor
IC OFFLINE SWITCH HALF BRIDGE / Converter Offline Topology
Lowest to $27.4694
TOP254PG Power Integrations – Price, Stock & Datasheet
TOP254PG
Power Integrations
Converter Offline Flyback Topology 66kHz 8-PDIP-C
Need more? Email Us

Top Sellers

EPM3128ATC100-10N real image
EPM3128ATC100-10N
Altera
IC CPLD 128MC 10NS 100TQFP
Lowest to $3.3015
BMI160 real image
BMI160
Bosch Sensortec
IMU ACCEL/GYRO I2C/SPI 14LGA / Accelerometer, Gyroscope, 6 Axis Sensor I2C, SPI Output
Lowest to $3.6828
CY7C68013A-128AXC Real Image
CY7C68013A-128AXC
Cypress Semiconductor Corp
IC MCU USB PERIPH HI SPD 128LQFP
Lowest to $19.0076
BMI088 real image23913
BMI088
Bosch Sensortec
ACCELEROMETER 16LGA / Accelerometer, Gyroscope, 6 Axis Sensor I2C, SPI Output
Lowest to $11.8797
BME280 Real Image
BME280
Bosch Sensortec
SENSOR PRESSURE HUMIDITY TEMP
Lowest to $4.0391
FT4232HL-REEL real image4451
FT4232HL-REEL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $14.0181
ULN2803ADW Real Image
ULN2803ADW
Texas Instruments
DARLINGTON TRANSISTOR ARRAY | TRANS 8NPN DARL 50V 0.5A 18SO
Lowest to $5.4647
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
BAS516 Real Image
BAS516
Nexperia USA Inc.
DIODE GEN PURP 100V 250MA SOD523
Lowest to $0.0214
FT230XS-R real image4301
FT230XS-R
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $6.4151
DRV8432DKD Real Image1
DRV8432DKD
Texas Instruments
IC BRIDGE DRIVER PAR 36HSSOP
Lowest to $19.3374
BM04B-GHS-TBT(LF)(SN)(N) label picture
BM04B-GHS-TBT(LF)(SN)(N)
JST Sales America Inc.
CONN HEADER GH TOP 4POS 1.25MM
Lowest to $0.1782
PE4312C-Z label picture
PE4312C-Z
Peregrine Semiconductor
RF ATTENUATOR 31.5DB 50OHM 20QFN
Lowest to $2.2891
FT230XS-U real image21586
FT230XS-U
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $6.4151
NTA4153NT1G real image4110
NTA4153NT1G
ON Semiconductor
MOSFET N-CH 20V 915MA SOT-416
Lowest to $0.0543

Pricing & Ordering

Quantity Unit Price Ext. Price
14+ $4.2044 $58.8616
34+ $3.4497 $117.2898
52+ $3.3419 $173.7788
72+ $3.2340 $232.8480
93+ $3.1263 $290.7459
124+ $2.8029 $347.5596
* Prices exclude shipping and taxes. Shipping costs are calculated at checkout.
Estimate Shipping
Enter your destination to get a shipping estimate
*
Availability: 3,485 pieces
MOQ: 14 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