Logo
Contact Us
Cookies Policy
Terms of Use
Privacy Policy
phone
Vivi (Sales)
phone
Lucy (Sales)
phone
Ban (Sales)
phone
+86 755-2845-3125
RFQ List
  • open navigation menu
    • Logo
    • RFQ List
      • Manufacturers
      • Hot Products
      • RFQ
      • Blog
      • Tools
      • Sourcing Solutions
      • PCB/SMT
      • About Us
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    CONTACT US
    Customer Support:
    +86 755-2845-3125
    Room 2709B, 5A Office Building, Longguang Jiuzuan, Hongshan, Longhua District, Shenzhen, China
    [email protected]
    Company
    • Blog
    • About Us
    • Contact Us
    Resources
    • Categories
    • Manufacturers
    • Tools
    • RFQ
    Quick link
    • Privacy Policy
    • Terms of Use
    • Cookies Policy
    • Refund & Return Policy
    • Shipping & Delivery Policy
    Payment
    • Payment method
    • Payment method
    • Payment method
    • Payment method
    Logistics
    • Logistics partner
    • Logistics partner
    • Logistics partner
    • Logistics partner

    © 2026 Copyright. All Rights Reserved. Made by ICAllIn

    Part number
    Part number
    1. Home/
    2. All Categories/
    3. Integrated Circuits - ICs/
    4. Interface ICs/
    5. RT9742CNGJ5F RICHTEK

    RT9742CNGJ5F [RICHTEK]

    RT9742CNGJ5F
    RT9742CNGJ5F

    Part No:

    RT9742CNGJ5F

    Category:

    Interface ICs

    Manufacturer:

    RICHTEK

    Description:

    The RT9742 is a cost-effective, low-voltage, single N-MOSFET high-side Power Switch IC for USB application. Low switch-on resistance and low supply current are realized in this IC.

    RoHS Status:

    Product FAQ

    1. Is RT9742CNGJ5F available for RFQ?

    Yes. RT9742CNGJ5F by RICHTEK is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

    2. Why is there no fixed price for RT9742CNGJ5F?

    Pricing for RT9742CNGJ5F can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

    3. What are the key specifications of RT9742CNGJ5F?

    RT9742CNGJ5F is a RICHTEK Interface ICs with Over Current Trip Threshold Max: 4.5A and Over Current Trip Threshold Min: 0.65A. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for RT9742CNGJ5F?

    Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

    5. How soon can RT9742CNGJ5F be shipped?

    If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

    6. Can you suggest alternatives to RT9742CNGJ5F?

    Yes. If RT9742CNGJ5F is unavailable, obsolete, or does not meet your required lead time, we can help check similar RICHTEK Interface ICs parts or compatible alternatives.

    RFQ

    Part Number:

    RT9742CNGJ5F

    Manufacturer:

    RICHTEK

    Looking for Pricing? Contact us for volume pricing.

    IMPORTANT NOTICE

    Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

    Featured Product

    Stock Status:

    Available for RFQ

    Pricing:

    Request Volume Pricing

    Quote Response:

    Within 24 Hours

    Shipping:

    In-stock parts ship in 1–2 business days

    Specification

    Type
    Parameter
    ESD Hbm
    2kV
    Supply Voltage
    2.7V ~ 6V
    Package
    TSOT-23-5, TSOT-23-5 (FC), SOT-23-3
    RoHS Status
    RoHS Compliant
    Storage Temperature
    -65°C ~ +150°C
    Auto Discharge Resistance
    100Ω
    Current Limit
    0.6A ~ 3.6A
    Flag Delay Time
    10ms
    Operating Ambient Temperature
    -40°C ~ +85°C
    Over Current Trip Threshold Max
    4.5A
    Over Current Trip Threshold Min
    0.65A
    Power Dissipation SOT-23-3
    0.41W
    Power Dissipation TSOT-23-5
    0.49W
    Power Dissipation TSOT-23-5 FC
    0.79W
    Thermal Resistance SOT-23-3
    243.3°C/W
    Thermal Resistance TSOT-23-5
    203°C/W
    Thermal Resistance TSOT-23-5 FC
    126.5°C/W
    Thermal Shutdown Hysteresis
    20°C
    Thermal Shutdown Temperature
    140°C
    Under Voltage Hysteresis
    0.1V
    Under Voltage Lockout
    2.4V

    Products Detail

    The RT9742 is a cost-effective, low-voltage, single N-MOSFET high-side power switch IC designed for USB applications. It features low switch-on resistance (55mΩ/70mΩ typical) and low supply current. The device integrates over-current protection, short fold back circuit, thermal shutdown, and under-voltage lockout for comprehensive protection. It includes a flag output to indicate fault conditions to the local USB controller and an embedded delay function to prevent miss-operation due to inrush current. The RT9742 is available in TSOT-23-5, TSOT-23-5 (FC), and SOT-23-3 packages, making it suitable for USB peripherals, notebook PCs, and other flexible applications.

    Key Features

    • 70mΩ/55mΩ (typ.) N-MOSFET Switch, Operating Range: 2.7V to 6V, Reverse Blocking Current, Under Voltage Lockout, Deglitched Fault Report (FLG), Thermal Protection with Fold-back, Over Current Protection, Short Circuit Protection, UL Approved E219878, Nemko Approved-NO109777

    Application scenarios

    • USB Peripherals
    • Notebook PCs
    Shipping & Warranty

    Fast Dispatch: Ships in 5-7 days(in-stock parts within 1-2 days)

    Unishop Global Export: 1-7 days, $40.00

    Guaranteed Delivery: Door-to-door in 30 days

    Compliant Worldwide Shipping: DHL, FedEx, SF, and UPS.

    Feature

    • 30-Day Guarantee
      30-Day Guarantee
    • Fasted Delivery
      Fasted Delivery
    • Hassle-Free Returns
      Hassle-Free Returns
    • Secure payment method
      Secure payment method

    BEST SELL
    PMEG4010CEGW-QJ

    PMEG4010CEGW-QJ

    NEXPERIA

    BEST SELL
    K4RAH165VB-BCWM

    K4RAH165VB-BCWM

    SAMSUNG

    BEST SELL
    MT47H128M16RT-25E IT:C

    MT47H128M16RT-25E IT:C

    Micron

    BEST SELL
    K4F6E3S4HM-THCL

    K4F6E3S4HM-THCL

    SAMSUNG

    BEST SELL
    H5AN4G6NBJR-UHI

    H5AN4G6NBJR-UHI

    SK HYNIX

    BEST SELL
    MTFC2GMDEA-0M WT A

    MTFC2GMDEA-0M WT A

    Micron

    BEST SELL
    CYBT-343026-EVAL

    CYBT-343026-EVAL

    Infineon

    BEST SELL
    S9KEAZ128AMLK

    S9KEAZ128AMLK

    NXP

    BEST SELL
    ISL8200MIRZ-T

    ISL8200MIRZ-T

    RENESAS

    BEST SELL
    MT25QU256ABA1EW7-0SIT

    MT25QU256ABA1EW7-0SIT

    Micron

    Related Information
    • Part Number
      Manufacturer
      Stock Status
      Pricing
      RoHS/Datasheet
    • RTQ2822AGQVF
      RICHTEK
      Available for RFQ
      Request Volume Pricing
    • RT8575GQW
      RICHTEK
      Available for RFQ
      Request Volume Pricing
    • EVB_RT2101AGQW
      RICHTEK
      Available for RFQ
      Request Volume Pricing
      -
    • RT7272AGSP
      RICHTEK
      Available for RFQ
      Request Volume Pricing
    • EVB_RT7236GQW
      RICHTEK
      Available for RFQ
      Request Volume Pricing
      -
    • RT9721AGB
      RICHTEK
      Available for RFQ
      Request Volume Pricing
    • RT9711AGBG
      RICHTEK
      Available for RFQ
      Request Volume Pricing
    • RT9742SNGV
      RICHTEK
      Available for RFQ
      Request Volume Pricing
    • RT8086BGQUF
      RICHTEK
      Available for RFQ
      Request Volume Pricing
    • RT8064ZQW
      RICHTEK
      Available for RFQ
      Request Volume Pricing

    RT8258GE

    RT8258GE

    RICHTEK

    RT9466GQW

    RT9466GQW

    RICHTEK

    RT9013-12GB

    RT9013-12GB

    RICHTEK

    RT8129AGQW

    RT8129AGQW

    RICHTEK

    RT8068AZQW

    RT8068AZQW

    RICHTEK

    RT8289GSP

    RT8289GSP

    RICHTEK

    RT1738AGQW

    RT1738AGQW

    RICHTEK

    RT8575GQW

    RT8575GQW

    RICHTEK

    RT8288AZSP

    RT8288AZSP

    RICHTEK

    RT8239BZQW

    RT8239BZQW

    RICHTEK

    Switch ICs(14248)Counter ICs(4640)Programmable Logic ICs(28113)Power Management ICs(203677)Active Filter(721)Optocouplers / Photocouplers(168)Multimedia ICs(2442)Security ICs / Authentication ICs(379)Equalizers(6)Chipsets(31)Clock & Timer ICs(1260551)Driver ICs(24444)Amplifier ICs(47862)Audio ICs(8346)Communication & Networking ICs(6719)Logic ICs(54798)Digital Potentiometer ICs(4319)Data Converter ICs(31836)

    No recently viewed products