{"id":9631,"date":"2026-07-04T13:55:46","date_gmt":"2026-07-04T13:55:46","guid":{"rendered":"https:\/\/materialparts.com\/cm7v-t1a-32-768khz-6pf-20ppm-ta-qc\/"},"modified":"2026-07-04T13:55:46","modified_gmt":"2026-07-04T13:55:46","slug":"cm7v-t1a-32-768khz-6pf-20ppm-ta-qc","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/cm7v-t1a-32-768khz-6pf-20ppm-ta-qc\/","title":{"rendered":"CM7V-T1A-32.768KHZ-6PF-20PPM-TA-QC"},"content":{"rendered":"

Productos<\/h2>\n

The CM7V-T1A-32.768KHZ-6PF-20PPM-TA-QC is a 32.768kHz tuning fork SMD quartz crystal from Micro Crystal AG (Switzerland). This ultra-low-profile crystal measures just 3.2 x 1.5 x 0.35mm maximum height, making it one of the thinnest kHz crystals available. It features 6pF load capacitance, \u00b120ppm frequency tolerance, and an operating temperature range of -40\u00b0C to +85\u00b0C (TA grade). The ceramic package with metal lid provides hermetic sealing for high stability.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Frequency<\/td>\n32.768 kHz<\/td>\n<\/tr>\n
Load Capacitance<\/td>\n6.0 pF<\/td>\n<\/tr>\n
Frequency Tolerance<\/td>\n\u00b120 ppm<\/td>\n<\/tr>\n
ESR (Series Resistance)<\/td>\n65 k\u03a9 (Typ) \/ 80 k\u03a9 (Max)<\/td>\n<\/tr>\n
Motional Capacitance (C1)<\/td>\n4.8 fF (Typ)<\/td>\n<\/tr>\n
Static Capacitance (C0)<\/td>\n1.4 pF (Typ)<\/td>\n<\/tr>\n
Drive Level (Max)<\/td>\n0.5 \u03bcW<\/td>\n<\/tr>\n
Aging (First Year)<\/td>\n\u00b13 ppm Max<\/td>\n<\/tr>\n
Paquete<\/td>\n2-SMD, No Lead (3.2 x 1.5 x 0.35mm)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Ultra-low profile with maximum height of 0.35mm<\/li>\n
  • Outstanding hermetic sealing with gold-tin preform<\/li>\n
  • High stability guaranteed by hermetic ceramic package with metal lid<\/li>\n
  • High shock resistance (5000g) and vibration resistance (20g)<\/li>\n
  • 100% Pb-free and RoHS-compliant<\/li>\n
  • Available for extended operating temperature ranges up to +125\u00b0C<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • IoT devices and smart sensors<\/li>\n
    • Wearable electronics and ultra-thin devices<\/li>\n
    • Health care and medical devices<\/li>\n
    • Smart card and portable electronics<\/li>\n
    • Real-time clock (RTC) circuits<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The CM7V-T1A-32.768KHZ-6PF-20PPM-TA-QC is a 32.768kHz tuning fork SMD quartz crystal from Micro Crystal AG (Switzerland). This ultra-low-profile crystal measures just 3.2 x 1.5 x 0.35mm maximum height, making it one of the thinnest kHz crystals available. It features 6pF load capacitance, \u00b120ppm frequency tolerance, and an operating temperature range of -40\u00b0C to +85\u00b0C […]<\/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":[893],"chip_brand":[892],"class_list":["post-9631","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-transistors","tag-cm7v-t1a-32-768khz-6pf-20ppm-ta-qc","chip_brand-micro-crystal"],"acf":{"brief_explanation":"32.768kHz tuning fork crystal, 6pF CL, \u00b120ppm, 3.2x1.5x0.35mm, ultra-low profile SMD","date_code":"","package_case":"2-SMD No Lead (3.2 x 1.5 x 0.35 mm)","in_stock":9350,"datasheet":"https:\/\/www.microcrystal.com\/fileadmin\/Media\/Products\/32kHz\/Datasheet\/CM7V-T1A_03.pdf","price":"$0.44 @ 1ku","product_introduction":"The Micro Crystal CM7V-T1A is an ultra-low-profile SMD tuning fork quartz crystal resonator operating at the standard 32.768kHz frequency. With a maximum height of only 0.35mm, it is one of the thinnest kHz crystals on the market, making it ideal for space-constrained and ultra-thin electronic devices. The crystal is housed in a hermetically sealed ceramic package with metal lid using gold-tin preform, ensuring excellent long-term frequency stability with \u00b13ppm per year aging. The 6pF load capacitance option supports low-power RTC oscillator designs. The CM7V-T1A features exceptional mechanical robustness with 5000g shock resistance and 20g vibration resistance, suitable for demanding wearable and portable applications. Manufactured in Switzerland by Micro Crystal AG, the device is 100% Pb-free and RoHS-compliant.","working_principle":"The CM7V-T1A crystal operates using the flexural (tuning fork) vibration mode of a quartz crystal resonator. When an AC voltage is applied across the crystal terminals at or near its natural resonant frequency of 32.768kHz, the tuning fork tines vibrate in anti-phase through the piezoelectric effect. The quartz's extremely high Q factor (Quality factor) ensures that the oscillation frequency is highly stable and precisely determined by the physical dimensions of the crystal element. The frequency-temperature characteristic follows a parabolic curve centered at the turnover temperature (25\u00b15\u00b0C) with a coefficient of approximately -0.035ppm\/\u00b0C\u00b2, meaning the frequency decreases symmetrically as temperature moves away from the turnover point. In a typical RTC oscillator circuit, the crystal is paired with an inverting amplifier and two load capacitors (CL = 6pF), forming a Pierce oscillator that generates a stable 32.768kHz clock reference.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Terminal 1<\/td>I\/O<\/td>Crystal connection terminal 1 (Au flashed pad)<\/td><\/tr>
      2<\/td>Terminal 2<\/td>I\/O<\/td>Crystal connection terminal 2 (Au flashed pad)<\/td><\/tr><\/table>","application_scenarios":"
      • Real-time clock (RTC) circuits in IoT and smart devices<\/li>
      • Wearable electronics and ultra-thin portable devices<\/li>
      • Medical and health care monitoring devices<\/li>
      • Smart cards and secure element timing<\/li>
      • Industrial sensors and low-power timer circuits<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Micro Crystal<\/td>CM7V-T1A-32.768KHZ-12.5PF<\/td>3.2x1.5mm<\/td>12.5pF load capacitance variant<\/td><\/tr>
        Micro Crystal<\/td>CC7V-T1A-32.768KHZ-6PF<\/td>3.2x1.5mm<\/td>CC series alternative<\/td><\/tr>
        Epson<\/td>FC-135 32.768KHZ<\/td>3.2x1.5mm<\/td>Standard tuning fork crystal<\/td><\/tr>
        NDK<\/td>NX2012SA 32.768KHZ<\/td>2.0x1.2mm<\/td>Smaller footprint alternative<\/td><\/tr>
        Abracon<\/td>AB26TRQ-32.768KHZ<\/td>3.2x1.5mm<\/td>Tuning fork, automotive grade<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/9631","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=9631"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/9631\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=9631"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=9631"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=9631"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=9631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}