{"id":10744,"date":"2026-07-20T11:13:54","date_gmt":"2026-07-20T11:13:54","guid":{"rendered":"https:\/\/ic-vendor.com\/7w-40-000mab-t\/"},"modified":"2026-07-20T11:13:54","modified_gmt":"2026-07-20T11:13:54","slug":"7w-40-000mab-t","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/7w-40-000mab-t\/","title":{"rendered":"7W-40.000MAB-T"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The 7W-40.000MAB-T from TXC Corporation is a 40 MHz CMOS clock oscillator in a 7.0 x 5.0 mm SMD package. Operating from a 3.3 V supply, it provides +-25 ppm frequency stability with an enable\/disable function and is suitable for tight-stability timing applications in networking, telecom, and computing systems.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Frequency<\/td>\n40 MHz<\/td>\n<\/tr>\n
Frequency Stability<\/td>\n+-25 ppm<\/td>\n<\/tr>\n
\u8f93\u51fa\u7c7b\u578b<\/td>\nCMOS<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3.3 V<\/td>\n<\/tr>\n
Supply Current<\/td>\n20 mA (max)<\/td>\n<\/tr>\n
\u529f\u80fd<\/td>\nEnable\/Disable<\/td>\n<\/tr>\n
Load Capacitance<\/td>\n30 pF<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to 85 degC<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n4-SMD (7.0 x 5.0 x 1.4 mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Tight +-25 ppm frequency stability<\/li>\n
  • CMOS output with enable\/disable control<\/li>\n
  • 3.3 V single supply operation<\/li>\n
  • Industry-standard 7×5 mm footprint<\/li>\n
  • Low current consumption: 20 mA max<\/li>\n
  • RoHS compliant lead-free construction<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Networking and telecom equipment clocking<\/li>\n
    • Embedded processor clock reference<\/li>\n
    • USB, Ethernet, and PCI Express timing<\/li>\n
    • Industrial control system timing<\/li>\n
    • FPGA and CPLD clock source<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The 7W-40.000MAB-T from TXC Corporation is a 40 MHz CMOS clock oscillator in a 7.0 x 5.0 mm SMD package. Operating from a 3.3 V supply, it provides +-25 ppm frequency stability with an enable\/disable function and is suitable for tight-stability timing applications in networking, telecom, and computing systems. Key Specifications Frequency 40 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,55],"tags":[2085],"chip_brand":[1077],"class_list":["post-10744","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-transistors","tag-7w-40-000mab-t","chip_brand-txc"],"acf":{"brief_explanation":"40MHz CMOS oscillator, +-25ppm, 3.3V, enable\/disable, 7x5mm SMD","date_code":"","package_case":"4-SMD (7.0 x 5.0 x 1.4 mm)","in_stock":6964,"datasheet":"https:\/\/www.txccrystal.com\/images\/pdf\/7w.pdf","price":"$1.35 @ 1ku","product_introduction":"The 7W-40.000MAB-T from TXC Corporation is a 40 MHz crystal oscillator (XO) in the industry-standard 7x5 mm surface-mount package. It features tight +-25 ppm frequency stability over the -40 to 85 degC operating temperature range, making it suitable for precision timing applications. The CMOS output provides clean rail-to-rail switching with a maximum supply current of 20 mA. The enable\/disable function allows the oscillator output to be tri-stated, which is useful for clock distribution and power management in multi-clock systems. The 3.3 V supply voltage is compatible with most modern logic families.","working_principle":"The 7W-40.000MAB-T uses a quartz crystal resonator as the frequency-determining element in an oscillator circuit. The internal oscillator circuit amplifies and sustains the mechanical vibration of the crystal at its fundamental frequency of 40 MHz. The output stage converts the oscillator signal to a CMOS logic level with fast rise and fall times. The enable\/disable pin controls a tri-state buffer at the output; when disabled, the output enters a high-impedance state. The tight +-25 ppm stability is achieved through careful crystal selection and temperature-compensated oscillator design. The hermetically sealed package ensures long-term frequency stability.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>NC \/ E\/D<\/td>Input<\/td>No connect or enable\/disable control<\/td><\/tr>
      2<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      3<\/td>OUTPUT<\/td>Output<\/td>CMOS clock output<\/td><\/tr>
      4<\/td>VDD<\/td>Power<\/td>3.3 V supply voltage<\/td><\/tr><\/table>","application_scenarios":"
      • Ethernet switch and router clock reference<\/li>
      • Embedded processor and DSP system clocking<\/li>
      • USB and PCI Express timing reference<\/li>
      • FPGA and CPLD development board clock source<\/li>
      • Industrial control and automation timing<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TXC<\/td>7W-40.000MBB-T<\/td>7x5 SMD<\/td>+-50 ppm version<\/td><\/tr>
        TXC<\/td>7C-40.000MBA-T<\/td>5x3.2 SMD<\/td>Smaller 5x3.2 package<\/td><\/tr>
        Abracon<\/td>ASFLMB-40.000MHZ-LR-T<\/td>5x3.2 SMD<\/td>40 MHz, +-25 ppm<\/td><\/tr>
        Epson<\/td>SG-7050CAN 40.0000MB<\/td>7x5 SMD<\/td>40 MHz CMOS oscillator<\/td><\/tr>
        NDK<\/td>NDK NZ2016SD 40.0000M<\/td>7x5 SMD<\/td>40 MHz crystal oscillator<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10744","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=10744"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10744\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10744"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10744"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10744"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}