IC Chips

74 series Digital Integrated Circuits

CD40 series Digital Integrated Circuits

Optical Couplers

Clock & Calculator ICs

Operational Amplifiers

Power Switch Ics

Driver Ics

Flash Memory


Audio Special Purpose

Clock/Timing - Application Specific

Clock/Timing - Clock Buffers, Drivers

Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

Clock/Timing - Delay Lines

Clock/Timing - IC Batteries

Clock/Timing - Programmable Timers and Oscillators

Clock/Timing - Real Time Clocks

Data Acquisition - ADCs/DACs - Special Purpose

Data Acquisition - Analog Front End (AFE)

Data Acquisition - Analog to Digital Converters (ADC)

Data Acquisition - Digital Potentiometers

Data Acquisition - Digital to Analog Converters (DAC)

Data Acquisition - Touch Screen Controllers

Embedded - CPLDs (Complex Programmable Logic Devices)

Embedded - DSP (Digital Signal Processors)

Embedded - FPGAs (Field Programmable Gate Array)

Embedded - FPGAs (Field Programmable Gate Array) with Microcontrollers

Embedded - Microcontroller, Microprocessor, FPGA Modules

Embedded - Microcontrollers

Embedded - Microcontrollers - Application Specific

Embedded - Microprocessors

Embedded - PLDs (Programmable Logic Device)

Embedded - System On Chip (SoC)

Interface - Analog Switches - Special Purpose

Interface - Analog Switches, Multiplexers, Demultiplexers

Interface - CODECs

Interface - Controllers

Interface - Direct Digital Synthesis (DDS)

Interface - Drivers, Receivers, Transceivers

Interface - Encoders, Decoders, Converters

Interface - Filters - Active

Interface - I/O Expanders

Interface - Modems - ICs and Modules

Interface - Modules

Interface - Sensor and Detector Interfaces

Interface - Sensor, Capacitive Touch

Interface - Serializers, Deserializers

Interface - Signal Buffers, Repeaters, Splitters

Interface - Signal Terminators

Interface - Specialized

Interface - Telecom

Interface - UARTs (Universal Asynchronous Receiver Transmitter)

Interface - Voice Record and Playback

Linear - Amplifiers - Audio

Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Linear - Amplifiers - Special Purpose

Linear - Amplifiers - Video Amps and Modules

Linear - Analog Multipliers, Dividers

Linear - Comparators

Linear - Video Processing

Logic - Buffers, Drivers, Receivers, Transceivers

Logic - Comparators

Logic - Counters, Dividers

Logic - FIFOs Memory

Logic - Flip Flops

Logic - Gates and Inverters

Logic - Gates and Inverters - Multi-Function, Configurable

Logic - Latches

Logic - Multivibrators

Logic - Parity Generators and Checkers

Logic - Shift Registers

Logic - Signal Switches, Multiplexers, Decoders

Logic - Specialty Logic

Logic - Translators, Level Shifters

Logic - Universal Bus Functions

Memory - Batteries

Memory - Configuration Proms for FPGAs

Memory - Controllers

PMIC - AC DC Converters, Offline Switchers

PMIC - Battery Chargers

PMIC - Battery Management

PMIC - Current Regulation/Management

PMIC - Display Drivers

PMIC - Energy Metering

PMIC - Full, Half-Bridge Drivers

PMIC - Gate Drivers

PMIC - Hot Swap Controllers

PMIC - Laser Drivers

PMIC - LED Drivers

PMIC - Lighting, Ballast Controllers

PMIC - Motor Drivers, Controllers

PMIC - OR Controllers, Ideal Diodes

PMIC - PFC (Power Factor Correction)

PMIC - Power Distribution Switches, Load Drivers

PMIC - Power Management - Specialized

PMIC - Power Over Ethernet (PoE) Controllers

PMIC - Power Supply Controllers, Monitors

PMIC - RMS to DC Converters

PMIC - Supervisors

PMIC - Thermal Management

PMIC - V/F and F/V Converters

PMIC - Voltage Reference

PMIC - Voltage Regulators - DC DC Switching Controllers

PMIC - Voltage Regulators - DC DC Switching Regulators

PMIC - Voltage Regulators - Linear

PMIC - Voltage Regulators - Linear + Switching

PMIC - Voltage Regulators - Linear Regulator Controllers

PMIC - Voltage Regulators - Special Purpose

Specialized ICs






Power Supply

Smart Power Module

SCR,GTO and Diode


Darlington Transistors

RF Modules




Servo drive & amplifier & Servo

Diode Module

Transistor Module

Switch Relay



Contactor & Breaker

Elevator Board

Industry Control



Bipolar transistors


Carbon Film Resistors

Cement Resistors

Chassis Mount Resistors

Chip Resistor - Surface Mount

Current Sense Resistors

Fusible Chip Resistor

High Precision & Low TCR SMD Resistors

High Voltage Resistor

LED Strip Resistors

MELF Resistor

Metal Alloy Resistors

Metal Film Resistor (TH)

Metal Glaze Resistors

Metal Oxide Film Resistors

Metal Oxide Resistors

NTC Thermistors

PTC Thermistors


Potentiometers & Variable Resistors

Precision Potentiometer

Resistor Networks & Arrays

Resistor Networks & Arrays (TH)

Ultra Low Resistors (SMD)

Variable Resistors


Wirewound Resistors


Aluminum Electrolytic Capacitors - SMD

CL21 Capacitor

Ceramic Disc Capacitors

High Voltage Capacitors

Metallized Polyester Film Capacitor

Multilayer Ceramic Capacitors MLCC - Leaded

Multilayer Ceramic Capacitors MLCC - SMD/SMT

Mylar Capacitor

Niobium Oxide Capacitors

Polyester Film Capacitors

Solid Polymer Electrolytic Capacitor

Supercapacitors & Ultracapacitors

Suppression Capacitors

Tantalum Capacitors

Trimmers, Variable Capacitors

Inductors & Ferrite Beads & Transformers


Current Transformers

General Inductors (TH)

HF Inductors

Inductors (SMD)

LINE Filter

Power Inductors

Power Transformer

RJ45 Transformer

Radial Inductor (TH)

The circular inductors





Ceramic Resonators

DIP Oscillators(XO)

Radial Cylinder Crystals

SAW Resonators

SMD Crystals

SMD Oscillators(XO)


AV Connectors

Audio & Video Connectors

Banana and Tip Connectors

Card Edge Connectors

Circular Connectors

Connector - Card Sockets


Connectors - Accessories

Connectors - Housings


D-Sub Connectors

Ethernet Connectors/Modular Connectors

FFC, FPC (Flat Flexible) Connectors

Fiber Optic Connectors

IC & Component Sockets

LED Light Pipes

Mezzanine Connectors (Board to Board)

PCB Connectors - Headers, Male Pins

PCB Connectors - Headers, Receptacles, Female Sockets

PCB Connectors - Housings

Power Connectors

RF Connectors/Coaxial Connectors

Shunts & Jumpers

Terminal Blocks - Accessories

Terminal Blocks - Barrier Blocks

Terminal Blocks - Din Rail, Channel

Terminal Blocks - Headers, Plugs and Sockets


Test Clips

Test Points/Test Rings

USB Connectors

Unspecified Connectors

Screw-type wiring

Spring-type wiring

Pluggable Terminal Blocks

Through-wall Terminal Blocks

Become Utsource Plus membership, you can get discount for the product, receive the shipping coupon and get more guarantees.

Welcome to buy

Sign In

3.Enter "account center"->"My inquiries" and check the status of your inquiries

Dear customers, due to the implementation of the GDPR policy in Europe, UTSOURCE has also made adjustment accordingly to meet the policy requirements. Please read the new privacy policy carefully and this window will no longer pop up after you accept it.

I agree all UTSOURCE Terms & Conditions,Privacy Statement
Agree Later Submit

Delivery Address

Alternate Text

+ Add Address


The new shipping address

*Country/Region :
*Contact :
*Phone :
*Address :
*City :
Province/State :
*Province/State :
*Post Code :
Please enter a new 5-digit zip code..
Company :


Category: Linear - Comparators

Description: Dual Differential Comparator

Price range ($)

3 Suppliers

0.22200 1.29600

Shopping Guide Related Search Related Supplier Alternate Names


  • Users could add parts to cart and upload BOM when they searching parts, calculate cost in a second, offer you the best bill of materials.
  • Some specific products need to reach the minimum order quantity.
  • Users could get coupons randomly when they applied plus member. Utsource offers different buying options with different product quality from different seller stores when placing orders.
  • Users could add products to“inquiry cart" and submit your inquiry, utsource will send quotation email to you.
  • If you need add additional order instructions like Tax Invoice or Remark, please put them on the ordering information page.
  • All order information could be checked in your "account center"page
  • Please confirm the product description when placing order.
  • The order can’t be canceled after shipment, so please email customer service to revise order details before shipment.
  • Utsource Mobile browser version and APP could be downloaded to find parts anytime, anywhere if needed.
  • Please choose right language and currency to place order if needed.


  • UTSOURCE supports global payments, including mainstream US PAYPAL, credit cards (VISA, MASTERCARD, AMERICAN EXPRESS, JCB), WEST UNION, Moneygram;
  • Popular payment in Europe: SofortBanking, Trustpay, Paysafecard;
  • Middle East: CashU, Onecard;
  • Southeast Asia : MOLPay;
  • Russia commonly used: Qiwi, Yandex Money, WebMoney;
  • The Dutch payment: iDEAL, Polish Dotpay,
  • Brazilian payment: Boleto
  • These above payments have a high market share in the local area with better payment experience, simpler payment method.


  • USPS, FedEx, DHL, and UPS could be selected.
  • Express: (FEDEX, UPS, DHL, TNT)Free shipping on first 0.5kg for orders over 150$, Overweight will be charged separately.
  • It is available for users to select "Freight Collect"depending on their requirement
  • It may cost additional remote fees for delivery if you are in a remote area.
  • Shipping price for your order will be calculated automatically in the shopping cart.If you have any questions about shipping costs, you can write to us and we will confirm it manually.
  • For in-stock parts, orders normally could be shipped out within 1-2days.
  • Delivery date: usually 2 to 5 working days.
  • Shipping Tracking Number will be sent by email or you can go to APP or website "account center" to check once your order has been shipped.
  • Invoice could be downloaded from "account center" > "my invoice" if needed

Gift Coupon/Plus service

  • You could receive US $5 shipping coupon (applicable to new users)
  • Offer 30-day PLUS free trial service( The plus service will be stopped automatically after the end of the trial, and no extra charge will be generated. Commodity prices are usually reduced by 10%)
  • “Funds account” could be used for your next order purchase If you have money that has been returned to your “Funds account”. (You could check it in “My Account” > “Funds account” )
  • Utsource offers professional customer service worldwide in USA, Mexico, Brazil, Italy, France, Germany and many other places.


Returns are normally accepted when completed within 60 days from the date of the parcel delivered.

Defective ( Please provide a third party quality report of nonconforming products)

Return Freight charges must be prepaid; we will not accept COD shipments.


All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.

  • KA2903 Price
  • KA2903 Pdf
  • KA2903 Hard to find
  • KA2903 Pinout
  • KA2903 Obsolete
  • KA2903 Image
  • KA2903 Buy
  • KA2903 Picture
  • KA2903 Sell
  • KA2903 In Stock
  • KA2903 Search
  • KA2903 Distributor
  • KA2903 Datasheet
  • KA2903 New&Original
  • KA2903 Application
  • KA2903 Series
  • KA2903 Replacement
  • KA2903 TI(NEC)
  • KA2903 find
  • KA2903 purchase
  • KA2903 need
  • KA2903 shopping
  • KA2903 store
  • KA2903 Cheap
  • KA2903 transistor
  • KA2903 equivalent
  • KA2903 Electronic Component
  • KA2903 Dual Differential Comparator
Part Number Seller's Name Stock Brand Package/Case Date Code Description Price
  • KA2901

    Utsource 191057 ST DIP SOP 95+ Quad Comparator Inquiry

    Xing Sheng Electronics Co.,Ltd. 100 SAMSUNG DIP14 95+ US $0.33

    JIE RONG Electronics Co.,Ltd 25 FSC DIP14 02+ US $0.37

  • KA2901D

    Utsource 191057 SAMSUNG SOP14 96 Quad Comparator Inquiry

    Ming Xin Da Technology Co.,Ltd 2376 FAIRCHILD SOP-14 01+ US $0.13

    LIAN FENG Business 5695 FIAR SOP14 0004+ US $0.15

    Utsource Original Store 14963 FAIRCHILD SOP-14 01+ US $0.48

  • KA29010

    Utsource 39968 SAMSUNG SOP14 33+ US $2.20

    JIE RONG Electronics Co.,Ltd 360 SAMSUNG SOP14 33+ US $1.04

  • KA2902D

    Utsource 191057 SANYO SOP-14 98+ Dual Operational Amplifier; Package: SOP; No of Pins: 14; Container: Rail Inquiry

    Tuo Li Tong Bo Electronics Co.,Ltd. 300 FAIRCHILD SOP-14 01+ IC OPAMP GP 4 CIRCUIT 14SOP US $0.22

  • KA2901DTF

    Utsource 191057 SAMSUNG SOP14 - Quad Comparator; Package: SOP; No of Pins: 14; Container: Tape & Reel Inquiry

    Jia Xing Chuang Da Technology Co.,Ltd. 198 SAMSUNG SOP 01+ You deserve it US $0.16

    Utsource Original Store 12785 SAMSUNG SOP 01+ You deserve it US $0.17

  • KA2902

    Utsource 191057 SAMSUNG DIP SOP 327B Quad Operational Amplifier Inquiry

    Xing Sheng Electronics Co.,Ltd. 100 SAMSUNG DIP14 327B US $0.44

  • KA2901DMTF

    Utsource 191057 FSC SOP8 1029+ COMPARATOR QUAD 14-SOP Inquiry

  • KA2901M

    Utsource 191057 FAIRCHILD SOP-14 04+ Inquiry

    Tuo Li Tong Bo Electronics Co.,Ltd. 300 FAIRCHILD SOP-14 04+ US $0.22

  • KA2904

    Utsource 191057 SAMSUNG DIP-8 98+ Dual Operational Amplifier US $0.50

    Xing Sheng Electronics Co.,Ltd. 150 FAI DIP8 01+ IC OPAMP GP 2 CIRCUIT 8DIP US $0.22

  • KA2903

    Utsource 191057 NEC SMD8 98+ Dual Differential Comparator US $1.30

    Xing Sheng Electronics Co.,Ltd. 150 SAMSUNG DIP8 9432 IC COMPARATOR DUAL DIFF 8-DIP US $0.22


  • KA2902DTF

    Utsource 191057 SAM SOP 05+ Dual Operational Amplifier; Package: SOP; No of Pins: 14; Container: Tape & Reel US $0.32

    Yue Hong Fa Electronics Co.,Ltd. 2000 ON/FAIRCHILD SOP14 - US $0.44

  • KA2903D

    Utsource 191057 SAMSUNG SOP-8 - Dual Comparator; Package: SOIC; No of Pins: 8; Container: Rail Inquiry

    Tuo Li Tong Bo Electronics Co.,Ltd. 1000 FAIRCHILD SOP-8 04+ IC COMPARATOR DUAL DIFF 8-SOP US $0.22

  • KA2904D

    Utsource 191057 SAMSUNG SOP8 9851 Dual Operational Amplifier; Package: SOIC; No of Pins: 8; Container: Rail Inquiry

    Tuo Li Tong Bo Electronics Co.,Ltd. 200 FAIRCHILD SOP-8 01+ IC OPAMP GP 2 CIRCUIT 8SOIC US $0.22

  • KA2903DTF

    Utsource 191057 ROHM SOP 2009+ COMPARATOR DUAL DIFF 8-SOP Inquiry

    ZJW Co. Ltd 233 FAIRCHILD SOP8 1307+ US $0.13

    zhuo yi Technology Co.,Ltd. 14690 FSC SOP8 13+ IC COMPARATOR DUAL DIFF 8-SOP US $0.37

    Chang Yi Electronic Business Department 2690 FSC SOP8 2009PB IC COMPARATOR DUAL DIFF 8-SOP US $0.13

  • KA2903DM

    Utsource 191057 FAIRCHILD SOP-8 04+ Inquiry

  • KA2903M

    Jia Xing Chuang Da Technology Co.,Ltd. 2406 FSC DIP 07+PB You deserve it US $0.47

    Utsource 48425 FSC DIP 07+PB IC COMPARATOR DUAL DIFF US $0.44

    Utsource Original Store 14993 FSC DIP 07+PB You deserve it US $0.50

  • KA2903DMTF

    Utsource 207233 On Semiconductor 8-SOIC (0.154", 3.90mm Width) - Comparator Differential 8-SOIC Inquiry

  • KA2904DMTF

    Utsource 207187 On Semiconductor 8-SOIC (0.154", 3.90mm Width) - General Purpose Amplifier 2 Circuit 8-SOIC Inquiry

  • KA2902DMTF

    Utsource 207187 On Semiconductor 14-SOIC (0.154", 3.90mm Width) - General Purpose Amplifier 4 Circuit 14-SOP Inquiry

  • KA2904DTF

    Utsource 191057 SAMSUNG SMD 98 Dual Operational Amplifier; Package: SOIC; No of Pins: 8; Container: Tape & Reel US $0.18

    Feng Wei Da Electronics Co.,Ltd. 288 SAMSDNG SOP8 9840+ IC OPAMP GP 2 CIRCUIT 8SOIC US $0.21

    Utsource Original Store 12875 SAMSDNG SOP8 9840+ IC OPAMP GP 2 CIRCUIT 8SOIC US $0.74


KA2903 has several brands around the world that may have alternate names for KA2903 due to regional differences or acquisition. KA2903 may also be known as the following names:

  • ST
  • FSC
  • FIAR
  • NEC
  • SAM
  • ROHM
  • FAI
  • On Semiconductor
  • ON Semiconductor

All sellers


Brand new


Certified preowned




Third Party



Part Number Product Description Summary Price Buy



5.0 out of 5 stars

1 star 0.1%
2 star 0%
3 star 0.2%
4 star 0.3%
5 star 99.3%

Total products: 2398088

Total sales: 5196747

Average lead time: 43.33 Hour

Delivery times (Express): 72091Deliverytimes

Delivery times (Post office): 8185

KA2903 Dual Differential Comparator


Utsource certified used partsUsed and refurbished parts offered by Utsource are guaranteed can be used normally.



Dual Differential Comparator

≥1: US $1.29600 US $1.16640

≥10: US $0.77760 US $0.69984

≥100: US $0.69120 US $0.62208

≥1000: US $0.66960 US $0.60264

≥2500: US $0.64800 US $0.58320

≥5000: US $0.62640 US $0.56376

≥10000: US $0.60480 US $0.54432

More: Inquiry

Xing Sheng Electronics Co.,Ltd.


5.0 out of 5 stars

1 star 0.2%
3 star 0.2%
4 star 0.6%
5 star 99%

Total products: 51152

Total sales: 58340

Average lead time: 47.87 Hour

Delivery times (Express): 5078Deliverytimes

Delivery times (Post office): 491



Third-party used partsUsed parts offered by the third-party




≥1: US $0.22200 US $0.19980

More: Inquiry



5.0 out of 5 stars

5 star 100%

Total products: 6977

Total sales: 1991

Average lead time: 0 Hour

Delivery times (Express): 177Deliverytimes

Delivery times (Post office): 3



Third-party used partsUsed parts offered by the third-party

On Semiconductor



≥1: US $0.66600 US $0.59940

More: Inquiry

No matching goods? Inquiry here.


Alternate Text
  • Alternate Text



Global logistics

Copyright © 2020 Power by UTSOURCE HOLDING COMPANY LIMITED ISO/IEC 20000-1:2011,ISO/IEC 27001:2013