{"id":9234,"date":"2026-07-03T03:52:02","date_gmt":"2026-07-03T03:52:02","guid":{"rendered":"https:\/\/materialparts.com\/fs051c223k4z2a\/"},"modified":"2026-07-03T03:53:11","modified_gmt":"2026-07-03T03:53:11","slug":"fs051c223k4z2a","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/fs051c223k4z2a\/","title":{"rendered":"FS051C223K4Z2A"},"content":{"rendered":"

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

The FS051C223K4Z2A is a multilayer ceramic capacitor (MLCC) manufactured by KYOCERA AVX, part of the FLEXISAFE series combining FLEXITERM flexible termination with cascade design structure for safety-critical applications. It features a capacitance of 0.022 \u00b5F (22 nF) with \u00b110% tolerance at a rated voltage of 100V DC, using X7R dielectric in a 0805 (2012 Metric) surface-mount package. AEC-Q200 qualified for automotive applications, it operates over a temperature range of -55\u00b0C to +125\u00b0C with the industry-leading safety features against board flexure, thermal stress, and ESD damage.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Capacitance<\/td>\n0.022 \u00b5F (22 nF)<\/td>\n<\/tr>\n
Tolerance<\/td>\n\u00b110% (K)<\/td>\n<\/tr>\n
Rated Voltage<\/td>\n100V DC<\/td>\n<\/tr>\n
Dielectric<\/td>\nX7R<\/td>\n<\/tr>\n
Package \/ Case<\/td>\n0805 (2012 Metric)<\/td>\n<\/tr>\n
Dimensions (L x W x T)<\/td>\n2.01 x 1.25 x 1.4 mm max<\/td>\n<\/tr>\n
Termination<\/td>\nFLEXITERM with Cascade Structure<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-55\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
Temperature Coefficient (X7R)<\/td>\n\u00b115% from -55\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
\u5b89\u88c5\u7c7b\u578b<\/td>\nSurface Mount, MLCC<\/td>\n<\/tr>\n
\u8d44\u683c<\/td>\nAEC-Q200<\/td>\n<\/tr>\n
\u5e94\u7528<\/td>\nAutomotive, Boardflex Sensitive<\/td>\n<\/tr>\n
Technology<\/td>\nFlexiTerm \/ Flexisafe<\/td>\n<\/tr>\n
EU RoHS<\/td>\n\u7b26\u5408\u8981\u6c42<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • AEC-Q200 qualified for automotive safety-critical applications<\/li>\n
  • FLEXITERM layer protects against board flexure mechanical damage<\/li>\n
  • Cascade structure protects against low IR failure from thermal stress and ESD<\/li>\n
  • Industry-leading safety features for ultra-critical applications<\/li>\n
  • 100V DC rating suitable for higher voltage automotive circuits<\/li>\n
  • X7R dielectric with stable capacitance over temperature range<\/li>\n
  • 0805 package provides compact footprint with adequate capacitance<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Automotive safety-critical circuits (airbag, braking, steering)<\/li>\n
    • High-voltage automotive powertrain applications<\/li>\n
    • Medical equipment requiring high reliability<\/li>\n
    • Industrial safety systems and motor drives<\/li>\n
    • Power supply EMI filtering at elevated voltages<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The FS051C223K4Z2A is a multilayer ceramic capacitor (MLCC) manufactured by KYOCERA AVX, part of the FLEXISAFE series combining FLEXITERM flexible termination with cascade design structure for safety-critical applications. It features a capacitance of 0.022 \u00b5F (22 nF) with \u00b110% tolerance at a rated voltage of 100V DC, using X7R dielectric in a 0805 […]<\/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":[61,13],"tags":[424],"chip_brand":[211],"class_list":["post-9234","post","type-post","status-publish","format-standard","hentry","category-capacitors","category-integrated-circuits-ics","tag-fs051c223k4z2a","chip_brand-avx"],"acf":{"brief_explanation":"0.022\u00b5F 100V X7R MLCC, 0805, \u00b110%, FLEXISAFE cascade + FLEXITERM, AEC-Q200, safety-critical","date_code":"","package_case":"0805 (2012 Metric) 2.01 x 1.25 x 1.4 mm","in_stock":5450,"datasheet":"https:\/\/www.mouser.com\/datasheet\/2\/420\/en-flexisafe-1857043.pdf","price":"$0.29 @ 2ku","product_introduction":"The FS051C223K4Z2A is a multilayer ceramic capacitor from KYOCERA AVX's FLEXISAFE series, designed specifically for safety-critical applications. It combines the award-winning FLEXITERM flexible termination layer with a cascade design structure previously used in high-voltage MLCCs. The FLEXITERM layer protects against board flexure mechanical damage, while the cascade structure prevents low insulation resistance failures from thermal stress damage, repetitive ESD strikes, and placement damage. With 0.022 \u00b5F at 100V DC using X7R dielectric, AEC-Q200 qualification confirms automotive-grade reliability for the most demanding safety applications.","working_principle":"The FS051C223K4Z2A operates as a multilayer ceramic capacitor with enhanced safety features:\n\n1. Capacitance: Multiple X7R ceramic dielectric layers interleaved with internal electrodes provide 0.022 \u00b5F at 100V rating in a compact 0805 package.\n\n2. FLEXITERM Layer: The flexible termination absorbs mechanical stress from PCB bending, preventing crack propagation from electrode edges into the ceramic body - the primary cause of MLCC field failures.\n\n3. Cascade Structure: The internal cascade design creates multiple isolation barriers within the capacitor, preventing low insulation resistance failures even if micro-cracks form. This protects against thermal stress, ESD damage, and placement damage.\n\n4. Safety Combination: The combination of FLEXITERM and cascade structure provides unbeatable safety features, making FLEXISAFE capacitors the preferred choice for airbag, braking, and steering applications.","pin_description":"\n
      Terminal<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Terminal A<\/td>Passive<\/td>Capacitor terminal - one plate connection through internal electrodes<\/td><\/tr>\n
      2<\/td>Terminal B<\/td>Passive<\/td>Capacitor terminal - other plate connection through internal electrodes<\/td><\/tr>\n<\/table>\n

      Note: This is a 2-terminal non-polarized MLCC. The 0805 package has FLEXITERM wraparound terminations with cascade internal structure. No polarity orientation required.<\/p>","application_scenarios":"\n
      Application<\/th>Circuit Role<\/th>Key Requirement<\/th><\/tr>\n
      Airbag Controller<\/td>Safety-critical decoupling<\/td>FLEXISAFE, cascade protection, AEC-Q200<\/td><\/tr>\n
      Braking System<\/td>EMI filtering in ABS\/ESC<\/td>100V, -55\u00b0C to +125\u00b0C, no IR failure<\/td><\/tr>\n
      Electric Steering<\/td>Power supply filtering<\/td>FLEXITERM, board flex protection<\/td><\/tr>\n
      Medical Equipment<\/td>Safety-critical signal filtering<\/td>Cascade structure, high reliability<\/td><\/tr>\n
      Industrial Safety<\/td>Motor drive EMI suppression<\/td>100V, X7R stable, AEC-Q200<\/td><\/tr>\n<\/table>","alternative_models":"\n
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Key Specs<\/th>Notes<\/th><\/tr>\n
      KYOCERA AVX<\/td>FS051C223K4Z1A<\/td>0805<\/td>0.022\u00b5F, 100V, X7R, 10%<\/td>Different packaging<\/td><\/tr>\n
      KYOCERA AVX<\/td>08051C223K4Z2A<\/td>0805<\/td>0.022\u00b5F, 100V, X7R, 10%<\/td>Standard FLEXITERM<\/td><\/tr>\n
      Murata<\/td>GRM21BR72A223KA01L<\/td>0805<\/td>0.022\u00b5F, 100V, X7R, 10%<\/td>Standard termination<\/td><\/tr>\n
      TDK<\/td>C2012X7R2A223K125AB<\/td>0805<\/td>0.022\u00b5F, 100V, X7R, 10%<\/td>Standard termination<\/td><\/tr>\n
      Samsung<\/td>CL21B223KBANNNC<\/td>0805<\/td>0.022\u00b5F, 50V, X7R, 10%<\/td>Lower voltage<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9234","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=9234"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9234\/revisions"}],"predecessor-version":[{"id":9246,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9234\/revisions\/9246"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9234"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9234"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9234"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9234"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}