{"id":10751,"date":"2026-07-20T12:43:36","date_gmt":"2026-07-20T12:43:36","guid":{"rendered":"https:\/\/ic-vendor.com\/3-644456-8\/"},"modified":"2026-07-20T12:43:36","modified_gmt":"2026-07-20T12:43:36","slug":"3-644456-8","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/3-644456-8\/","title":{"rendered":"3-644456-8"},"content":{"rendered":"

Product Overview<\/h2>\n

The 3-644456-8 from TE Connectivity is an 8-position vertical unshrouded pin header from the MTA-100 series with a 2.54 mm centerline. Designed for wire-to-board IDC connections, it features breakaway construction, tin-plated copper alloy square pins rated at 5 A, and through-hole solder termination.<\/p>\n

Key Specifications<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Number of Positions<\/td>\n8<\/td>\n<\/tr>\n
Centerline (Pitch)<\/td>\n2.54 mm [0.1 in]<\/td>\n<\/tr>\n
PCB Mount Orientation<\/td>\nVertical<\/td>\n<\/tr>\n
Header Type<\/td>\nBreakaway, Unshrouded<\/td>\n<\/tr>\n
Termination Method<\/td>\nThrough Hole – Solder<\/td>\n<\/tr>\n
Operating Voltage<\/td>\n250 VAC<\/td>\n<\/tr>\n
Contact Current Rating<\/td>\n5 A<\/td>\n<\/tr>\n
Operating Temperature<\/td>\n-55 to 105 degC<\/td>\n<\/tr>\n
Package<\/td>\nThrough-Hole Header (20.02 x 2.34 x 10.03 mm)<\/td>\n<\/tr>\n<\/table>\n

Features<\/h2>\n
    \n
  • MTA-100 series IDC-compatible pin header<\/li>\n
  • Breakaway design for flexible position counts<\/li>\n
  • End-to-end stackable for unlimited positions<\/li>\n
  • Tin-plated copper alloy square pins (0.64 mm)<\/li>\n
  • Glass-filled polyester housing, UL94 V-0<\/li>\n
  • Vertical through-hole mounting<\/li>\n<\/ul>\n

    Applications<\/h2>\n
      \n
    • Wire-to-board IDC mass termination<\/li>\n
    • Industrial control signal distribution<\/li>\n
    • Consumer electronics board-to-wire interfaces<\/li>\n
    • Power supply wiring harness connections<\/li>\n
    • Automation system I\/O headers<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

      Product Overview The 3-644456-8 from TE Connectivity is an 8-position vertical unshrouded pin header from the MTA-100 series with a 2.54 mm centerline. Designed for wire-to-board IDC connections, it features breakaway construction, tin-plated copper alloy square pins rated at 5 A, and through-hole solder termination. Key Specifications Number of Positions 8 Centerline (Pitch) 2.54 mm […]<\/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":[13,20],"tags":[2092],"chip_brand":[234],"class_list":["post-10751","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","tag-3-644456-8","chip_brand-te-connectivity"],"acf":{"brief_explanation":"8-pos 2.54mm MTA-100 vertical header, breakaway, unshrouded, 5A, THT","date_code":"","package_case":"Through-Hole Header (20.02 x 2.34 x 10.03 mm)","in_stock":6959,"datasheet":"https:\/\/www.te.com\/en\/product-3-644456-8.html","price":"$0.27 @ 1ku","product_introduction":"The 3-644456-8 from TE Connectivity is an 8-position vertical unshrouded pin header from the MTA-100 (Mass Termination Assembly) series. It is designed for wire-to-board applications using IDC (Insulation Displacement Contact) technology in the mating receptacle, enabling one-step wire termination without stripping. The breakaway construction allows the header to be separated into smaller position counts as needed. The tin-plated copper alloy square pins (0.64 mm) are rated at 5 A per contact. The narrow profile and end-to-end stackability allow flexible PCB layout with unlimited position expansion.","working_principle":"The 3-644456-8 operates as a male pin header that mates with an MTA-100 IDC receptacle. The 0.64 mm square pins engage with insulation displacement contacts in the mating receptacle, which slice through wire insulation to establish electrical contact without pre-stripping. The breakaway design features scored sections between positions that can be manually separated to create custom position counts. The glass-filled polyester housing provides dimensional stability during soldering and operation. The polarization feature in the housing ensures correct mating orientation with the IDC receptacle.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Pin 1<\/td>Contact<\/td>Signal\/power pin 1<\/td><\/tr>
      2<\/td>Pin 2<\/td>Contact<\/td>Signal\/power pin 2<\/td><\/tr>
      3<\/td>Pin 3<\/td>Contact<\/td>Signal\/power pin 3<\/td><\/tr>
      4<\/td>Pin 4<\/td>Contact<\/td>Signal\/power pin 4<\/td><\/tr>
      5<\/td>Pin 5<\/td>Contact<\/td>Signal\/power pin 5<\/td><\/tr>
      6<\/td>Pin 6<\/td>Contact<\/td>Signal\/power pin 6<\/td><\/tr>
      7<\/td>Pin 7<\/td>Contact<\/td>Signal\/power pin 7<\/td><\/tr>
      8<\/td>Pin 8<\/td>Contact<\/td>Signal\/power pin 8<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial control wire-to-board IDC mass termination<\/li>
      • Power supply wiring harness board interfaces<\/li>
      • Consumer electronics signal distribution headers<\/li>
      • Automation system modular I\/O connections<\/li>
      • HVAC control board field wiring terminals<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TE Connectivity<\/td>3-644456-2<\/td>THT<\/td>2-position variant<\/td><\/tr>
        TE Connectivity<\/td>3-644456-4<\/td>THT<\/td>4-position variant<\/td><\/tr>
        TE Connectivity<\/td>3-644456-10<\/td>THT<\/td>10-position variant<\/td><\/tr>
        Molex<\/td>10-89-0083<\/td>THT<\/td>2.54mm unshrouded header<\/td><\/tr>
        Harwin<\/td>M20-9990846<\/td>THT<\/td>2.54mm 8-pin header<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10751","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=10751"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10751\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10751"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10751"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10751"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}