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.
KA3842B Real Image
Same model may have multiple batches, images only for reference.

KA3842B

Part No KA3842B
Manufacturer Fairchild/ON Semiconductor
Catalog PMIC - AC DC Converters, Offline Switchers
Description IC REG CTRLR PWM CM 8-DIP
Sample
Rohs State rohs
ECAD Module
Need Help

Products specifications Report Issue?

Categories Integrated Circuits
Manufacturer Fairchild/ON Semiconductor
Packaging Tube/Rail
Status Obsolete(EOL)
Voltage - Start Up 16V
Supply Voltage - Operating 10 V to 30 V
Duty Cycle 97%
Frequency - Switching Up to 500kHz
Control Features Frequency Control
Temperature Range - Operating 0°C to 70°C (TA)
Case / Package 8-DIP
Mounting Through Hole
Win Source Part Number 103154-KA3842B
Is this a common-used part? Yes
Popularity High
Supply and Demand Status Balance
Quantity per package 50
Ultra Librarian 3D Model Ultra Librarian KA3842B CAD Model

Description

The Fairchild/ON Semiconductor KA3842B is a frequency control integrated circuit that is widely used in the power supply industry.

  • Supply Voltage: 10 V to 30 V
  • Operating Temperature Range: 0°C to 70°C
  • Package: 8-DIP
  • Switching: Up to 500kHz
  • Duty Cycle: 97%
  • Start-up Voltage: 16V
  • Status: Obsolete (EOL)
  • Popularity: High
  • Supply and Demand: Balance
  • Package Contains: 50 pieces

You May Also Be Interested in

VIPER114HSTR STMicroelectronics
VIPER114HSTR
STMicroelectronics
IC OFFLINE SW MULT TOP 10SSOP
Lowest to $1.0043
NCP1341B4D1R2G ON Semiconductor
NCP1341B4D1R2G
ON Semiconductor
IC OFFLINE SWITCH FLYBACK 9SOIC
Lowest to $1.1653
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
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
NCP1399ATDR2G ON Semiconductor
NCP1399ATDR2G
ON Semiconductor
IC OFFLINE SW HALF-BRDG 16SOIC
Lowest to $2.0583
UCC28742DBVT Real Image
UCC28742DBVT
Texas Instruments
IC OFFLINE SW FLYBACK SOT23-6 / Converter Offline Flyback Topology 80kHz SOT-23-6
Lowest to $0.5563
LNK3604G-TL Real Image1
LNK3604G-TL
Power Integrations
IC OFFLINE SWITCH FLYBACK 8SMD / Converter Offline Flyback Topology 132kHz SMD-8C
Lowest to $2.3459
Picture of NCP10672BD100R2G
NCP10672BD100R2G
ON Semiconductor
IC OFFLINE SWITCH MULT TOP 8SOIC
Lowest to $2.9324
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

Top Sellers

ULN2803ADW Real Image
ULN2803ADW
Texas Instruments
DARLINGTON TRANSISTOR ARRAY | TRANS 8NPN DARL 50V 0.5A 18SO
Lowest to $4.7519
CY7C68013A-128AXC Real Image
CY7C68013A-128AXC
Cypress Semiconductor Corp
IC MCU USB PERIPH HI SPD 128LQFP
Lowest to $18.8657
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
RTL8211FI-CG real image16071
RTL8211FI-CG
Realtek
INTEGRATED 10/100/1000M ETHERNET TRANSCEIVER
Lowest to $2.4354
ICM-42605 real image24295
ICM-42605
TDK InvenSense
IMU ACCEL/GYRO/TEMP I2C/SPI LGA
Lowest to $10.2166
BM06B-GHS-TBT(LF)(SN)(N) Real Image2
BM06B-GHS-TBT(LF)(SN)(N)
JST Sales America Inc.
CONN HEADER SMD 6POS 1.25MM
Lowest to $0.4985
DRV8432DKD Real Image1
DRV8432DKD
Texas Instruments
IC BRIDGE DRIVER PAR 36HSSOP
Lowest to $19.3374
FT4232HL-REEL real image4451
FT4232HL-REEL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $13.0677
NTA4153NT1G real image4110
NTA4153NT1G
ON Semiconductor
MOSFET N-CH 20V 915MA SOT-416
Lowest to $0.0543
BAS516 Real Image
BAS516
Nexperia USA Inc.
DIODE GEN PURP 100V 250MA SOD523
Lowest to $0.0713
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
ULN2803ADWR real image9675
ULN2803ADWR
Texas Instruments
TRANS 8NPN DARL 50V 0.5A 18SO
Lowest to $4.7519
SSD1963QL9 real image6483
SSD1963QL9
Solomon
LCD Display Controller 128-Pin LQFP Tray
Lowest to $4.1579
LM5069MM-2/NOPB real image1604
LM5069MM-2/NOPB
Texas Instruments
IC CTRLR HOT SWAP 48V 10-MSOP
Lowest to $2.3760
FT230XQ-R real image21397
FT230XQ-R
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16QFN
Lowest to $6.2963
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