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.
FSDL321L Real Image
Same model may have multiple batches, images only for reference.

FSDL321L

Part No FSDL321L
Manufacturer Fairchild/ON Semiconductor
Catalog PMIC - AC DC Converters, Offline Switchers
Description IC SWIT PWM GREEN CM OVP HV 8SOP / AC to DC Pulse Width Modulation Controller
Datasheet
FSDL321L Datasheet
Sample
Rohs State rohs
ECAD Module
Need Help

Products specifications Report Issue?

Categories Integrated Circuits (ICs)
Manufacturer Fairchild/ON Semiconductor
Series FPS
Packaging Tube
Part Status Obsolete(EOL)
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 650V
Topology Flyback
Voltage - Start Up 12V
Supply Voltage 8 V ~ 20 V
Duty Cycle 77%
Frequency - Switching 50kHz
Power (Watts) 17W
Fault Protection Current Limiting, Over Load, Over Temperature, Over Voltage
Operating Temperature Range -25°C ~ 85°C (TA)
Package 8-SMD, Gull Wing
Manufacturer Package 8-LSOP
Mounting SMD
Win Source Part Number 774787-FSDL321L
Popularity Medium
Supply and Demand Status Limited
Family Name FSDL321
Introduction Date May 21, 2004
Estimated EOL Date Obsolete / End of life
Ultra Librarian 3D Model Ultra Librarian FSDL321L CAD Model

Description

The Fairchild/ON Semiconductor FSDL321L is a Flyback topology integrated circuit.

  • Operating Temperature Range: -25°C to 85°C (TA)
  • Power Rating: 17W
  • Isolation: Internally Isolated
  • Voltage Breakdown: 650V
  • Startup Voltage: 12V
  • Duty Cycle: 77%
  • Switching Frequency: 50kHz
  • Fault Protection: Current Limiting, Over Load, Over Temperature, Over Voltage
  • Package: 8-SMD, gull-wing
  • Mounting: Surface Mount
  • Series: FPS
  • Status: Obsolete (EOL)
  • Alternative Parts: FSDL321, FSDL321_NL, FSDL321L_NL, ICE3B0365JGAUMA1

You May Also Be Interested in

IW1799-32B Renesas Electronics America
IW1799-32B
Renesas Electronics America
IC OFFLIN CONV SEC SIDE SR 8SOIC
Need more? Email Us
Picture of VNDH5160AJTR-E
VNDH5160AJTR-E
STMicroelectronics
IC CONVERTER OFF LINE PWRSO12 / Converter Offline Topology
Lowest to $13.4465
VIPER012XSTR STMicroelectronics
VIPER012XSTR
STMicroelectronics
IC OFFLINE SWITCH MULT TOP 10SSO
Lowest to $0.5856
Picture of NCP1239LD65R2G
NCP1239LD65R2G
ON Semiconductor
IC OFFLINE SWITCH FLYBACK 7SOIC / Converter Offline Flyback Topology 65kHz 7-SOIC
Lowest to $0.8033
VIPER318HDTR STMicroelectronics
VIPER318HDTR
STMicroelectronics
IC OFFLINE SWITCH MULT TOP 16SO / Converter Offline Boost, Buck, Buck-Boost, Flyback Topology 132kHz 16-SO
Need more? Email Us
LNK3604G-TL Real Image1
LNK3604G-TL
Power Integrations
IC OFFLINE SWITCH FLYBACK 8SMD / Converter Offline Flyback Topology 132kHz SMD-8C
Lowest to $2.3459
AP3968DMTR-G1 Real Image
AP3968DMTR-G1
Diodes Incorporated
IC OFFLINE SWITCH FLYBACK 7SO / Converter Offline Flyback Topology 60kHz 7-SO
Need more? Email Us
FSCM0465RJ Real Image
FSCM0465RJ
ON Semiconductor
IC OFFLINE SW FLYBACK D2PAK-6 / Converter Offline Flyback Topology 66kHz D²PAK-6
Need more? Email Us
NCV1362ABDR2G ON Semiconductor
NCV1362ABDR2G
ON Semiconductor
AUTOMOTIVE PRIMARY SIDE PWM CONT
Lowest to $2.2897

Top Sellers

SSD1963QL9 real image6483
SSD1963QL9
Solomon
LCD Display Controller 128-Pin LQFP Tray
Lowest to $4.1579
BMI160 real image
BMI160
Bosch Sensortec
IMU ACCEL/GYRO I2C/SPI 14LGA / Accelerometer, Gyroscope, 6 Axis Sensor I2C, SPI Output
Lowest to $3.8016
FT230XS-U real image21586
FT230XS-U
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $6.4151
EPM3128ATC100-10N real image
EPM3128ATC100-10N
Altera
IC CPLD 128MC 10NS 100TQFP
Lowest to $3.3015
BMM150 label picture
BMM150
Bosch Sensortec
SENSOR FLIPCORE/HALL SPI 12WLCSP / Geomagnetic Sensor
Lowest to $0.8018
CY7C68013A-128AXC Real Image
CY7C68013A-128AXC
Cypress Semiconductor Corp
IC MCU USB PERIPH HI SPD 128LQFP
Lowest to $18.8657
BAS516 Real Image
BAS516
Nexperia USA Inc.
DIODE GEN PURP 100V 250MA SOD523
Lowest to $0.0713
ICM-42688-P Real Image2
ICM-42688-P
TDK InvenSense
MOTION SENSOR / Accelerometer, Gyroscope, 6 Axis Sensor Output
Lowest to $18.0572
FT234XD-R real image
FT234XD-R
FTDI, Future Technology Devices International Ltd
USB-to-UART 1-CH 512byte FIFO 5V 12-Pin DFN EP T/R / IC USB SERIAL BASIC UART 12DFN
Lowest to $4.5143
ICM-42605 real image24295
ICM-42605
TDK InvenSense
IMU ACCEL/GYRO/TEMP I2C/SPI LGA
Lowest to $10.2166
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
PE4312C-Z label picture
PE4312C-Z
Peregrine Semiconductor
RF ATTENUATOR 31.5DB 50OHM 20QFN
Lowest to $1.3914
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
ULN2803ADW Real Image
ULN2803ADW
Texas Instruments
DARLINGTON TRANSISTOR ARRAY | TRANS 8NPN DARL 50V 0.5A 18SO
Lowest to $4.7519
FT4232HL real image4446
FT4232HL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $13.0677
Availability: Check Availability & Quote
Notify Me When Available

Shipping Information

Shipped from HK warehouse
Expected Shipping Date Get an estimate

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