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
    +86 755-2845-3125
    [email protected][email protected][email protected]
    Room 2709B, 5A Office Building, Longguang Jiuzuan, Hongshan, Longhua District, Shenzhen, China
    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. Wireless & RF Semiconductors/
    4. Wireless Modules/
    5. 2491 Unknown

    2491 [Unknown]

    2491
    2491

    Part No:

    2491

    Category:

    Wireless Modules

    Manufacturer:

    Unknown

    Description:

    2.4GHz~2.5GHz WiFi -40°C~125°C 3V~3.6V I2C, I2S, SDIO, SPI, UART Bulk Integrated, Trace 72.2Mbps 20.5dBm 802.11b/g/n -98dBm Module

    RoHS Status:

    Product FAQ

    1. Is 2491 available for RFQ?

    Yes. 2491 by Unknown 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 2491?

    Pricing for 2491 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 2491?

    2491 is a Unknown Wireless Modules with Packaging: Bulk and Moisture Sensitivity Level (MSL): 1 (Unlimited) and Max Operating Temperature: 125°C. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for 2491?

    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 2491 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 2491?

    Yes. If 2491 is unavailable, obsolete, or does not meet your required lead time, we can help check similar Unknown Wireless Modules parts or compatible alternatives.

    RFQ

    Part Number:

    2491

    Manufacturer:

    Unknown

    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

    Datasheet:

    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
    Factory Lead Time
    8 Weeks
    Mount
    Surface Mount
    Mounting Type
    Surface Mount
    Package / Case
    Module
    Operating Temperature
    -40°C~125°C
    Packaging
    Bulk
    Published
    2008
    Part Status
    Active
    Moisture Sensitivity Level (MSL)
    1 (Unlimited)
    Max Operating Temperature
    125°C
    Min Operating Temperature
    -40°C
    Voltage - Supply
    3V~3.6V
    Frequency
    2.4GHz~2.5GHz
    Interface
    I2C, SPI, UART
    Memory Size
    4MB Flash
    Data Rate
    72.2Mbps
    Utilized IC / Part
    ESP8266
    Protocol
    802.11b/g/n
    Power - Output
    20.5dBm
    RF Family/Standard
    WiFi
    Antenna Type
    Integrated, Trace
    Sensitivity
    -98dBm
    Serial Interfaces
    I2C, I2S, SDIO, SPI, UART
    Current - Receiving
    50mA~56mA
    Current - Transmitting
    120mA~170mA
    Sensitivity (dBm)
    -91 dBm
    RoHS Status
    RoHS Compliant

    Products Detail

    2491 Overview


    As a RF Transceiver' mounting method, Surface Mount is used.Using the Bulk package, this RF Transceiver module optimizes the performance of the RF Transceiver module 12v.In order for it to operate properly, Transceiver's operating temperature should be at -40°C~125°C.RF Transceivers that can supply 3V~3.6V volts are available.A 2.4GHz~2.5GHz frequency is used by the RF Transceiver Module.As a result of its Surface Mount mounting, this Transceiver is widely used in a wide variety of applications.

    2491 Features


    Surface Mount
    Bulk package
    3V~3.6V volts


    2491 Applications


    There are a lot of Adafruit Industries LLC
    2491 RF Transceiver Modules applications.


    • Switch
    • Power management
    • Internet of Things (IoT)
    • Secure Payment
    • Home and Security
    • Health and Fitness
    • Industrial and Data Logger
    • LED Lighting
    • Utility and Smart Energy
    • Thermostats

    Documents

    Datasheets:

    2491ESP8266EX Datasheet
    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
    K4F6E3S4HM-THCL

    K4F6E3S4HM-THCL

    SAMSUNG

    BEST SELL
    KLMAG1JETD-B041009

    KLMAG1JETD-B041009

    SAMSUNG

    BEST SELL
    BH66F5362

    BH66F5362

    Holtek

    BEST SELL
    KHBB84A03B-MC1J

    KHBB84A03B-MC1J

    SAMSUNG

    BEST SELL
    MT41K512M16VRP-107 IT:P

    MT41K512M16VRP-107 IT:P

    Micron

    BEST SELL
    S9KEAZ128AMLK

    S9KEAZ128AMLK

    NXP

    BEST SELL
    MT53E1G32D2FW-046 AAT:C

    MT53E1G32D2FW-046 AAT:C

    Micron

    BEST SELL
    MT25QL01GBBB8ESF-0SIT

    MT25QL01GBBB8ESF-0SIT

    Micron

    BEST SELL
    FS32K118LFT0VLHT

    FS32K118LFT0VLHT

    NXP

    BEST SELL
    INA226AIDGSR

    INA226AIDGSR

    Texas Instruments

    Related Information
    • Part Number
      Manufacturer
      Stock Status
      Pricing
      RoHS/Datasheet
    • AP.12B.07.0057A
      Unknown
      Available for RFQ
      Request Volume Pricing
    • SGGP.18.4.A.08
      Unknown
      Available for RFQ
      Request Volume Pricing
    • WCP3015W08-U050D3B0A
      Unknown
      Available for RFQ
      Request Volume Pricing
      -
    • EM-MX5152-MP
      Unknown
      Available for RFQ
      Request Volume Pricing
    • WS.01.B.305151
      Unknown
      Available for RFQ
      Request Volume Pricing
    • MIKE3A/3M/MCXM/S/S/17
      Unknown
      Available for RFQ
      Request Volume Pricing
    • 6174100PAD1
      Unknown
      Available for RFQ
      Request Volume Pricing
      -
    • HOL-NOVA-R410
      Unknown
      Available for RFQ
      Request Volume Pricing
      -
    • BM832E
      Unknown
      Available for RFQ
      Request Volume Pricing
    • MTQ-L4G1-B02.R1A
      Unknown
      Available for RFQ
      Request Volume Pricing
      -

    ANT-2.4-CW-HWR-SMA

    ANT-2.4-CW-HWR-SMA

    Unknown

    33-4721-00-3000

    33-4721-00-3000

    Unknown

    2867160

    2867160

    Unknown

    ANT-2.4-MMG2-SMA-3

    ANT-2.4-MMG2-SMA-3

    Unknown

    2450AT45A100E

    2450AT45A100E

    Unknown

    ANT-2.4-WRT-MON-UFL

    ANT-2.4-WRT-MON-UFL

    Unknown

    ANT-2.4-PW-QW-UFL

    ANT-2.4-PW-QW-UFL

    Unknown

    AGGBP.SL.18A.07.0060A

    AGGBP.SL.18A.07.0060A

    Unknown

    ALPHA3A/3M/SMAM/S/S/26

    ALPHA3A/3M/SMAM/S/S/26

    Unknown

    33-HC860-28

    33-HC860-28

    Unknown

    RF Test Equipment(0)Wireless & RF Integrated Circuits(69946)PIN Diodes(9542)NFC/RFID Solutions(3454)RF Resistors(4864)Wireless & RF Development Tools(18661)RF Isolators(33)RF Inductors(0)RF Capacitors(2)Transistors RF(0)

    No recently viewed products