{"id":10285,"date":"2026-07-09T10:06:47","date_gmt":"2026-07-09T10:06:47","guid":{"rendered":"https:\/\/materialparts.com\/bm05b-ghs-tbtlfsnn\/"},"modified":"2026-07-09T10:06:47","modified_gmt":"2026-07-09T10:06:47","slug":"bm05b-ghs-tbtlfsnn","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/bm05b-ghs-tbtlfsnn\/","title":{"rendered":"BM05B-GHS-TBT(LF)(SN)(N)"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The BM05B-GHS-TBT(LF)(SN)(N) from JST is a 5-position 1.25mm pitch GH series Shrouded Header, designed for Top-Entry (Straight) surface-mount applications. Rated at 1A and 50V AC\/DC, this connector provides reliable wire-to-board connectivity in a compact form factor.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629<\/td>\nJST<\/td>\n<\/tr>\n
Series<\/td>\nGH<\/td>\n<\/tr>\n
Pitch<\/td>\n1.25 mm<\/td>\n<\/tr>\n
Number of Positions<\/td>\n5<\/td>\n<\/tr>\n
\u0646\u0648\u0639 \u0627\u0644\u062a\u0631\u0643\u064a\u0628<\/td>\nSMT<\/td>\n<\/tr>\n
Orientation<\/td>\nTop-Entry (Straight)<\/td>\n<\/tr>\n
Current Rating<\/td>\n1A<\/td>\n<\/tr>\n
Voltage Rating<\/td>\n50V AC\/DC<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-25\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
Contact Material<\/td>\nCopper Alloy \/ Phosphor Bronze<\/td>\n<\/tr>\n
Contact Plating<\/td>\nTin (Sn)<\/td>\n<\/tr>\n
Insulation Material<\/td>\nNylon (PA) \/ PBT, UL94V-0<\/td>\n<\/tr>\n
RoHS Compliant<\/td>\nYes<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 1.25mm pitch disconnectable crimp-style connector<\/li>\n
  • Top-entry (straight) SMT configuration<\/li>\n
  • 5-position single-row layout<\/li>\n
  • Nickel barrier plating (N) for solder joint reliability<\/li>\n
  • Low insertion force for easy mating<\/li>\n
  • Tin-plated phosphor bronze contacts<\/li>\n
  • Lead-free compliant<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Display signal connections<\/li>\n
    • Portable device internal wiring<\/li>\n
    • Sensor module interfaces<\/li>\n
    • Small electronics sub-board connections<\/li>\n
    • AV equipment signal routing<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The BM05B-GHS-TBT(LF)(SN)(N) from JST is a 5-position 1.25mm pitch GH series Shrouded Header, designed for Top-Entry (Straight) surface-mount applications. Rated at 1A and 50V AC\/DC, this connector provides reliable wire-to-board connectivity in a compact form factor. Key Specifications Manufacturer JST Series GH Pitch 1.25 mm Number of Positions 5 Mounting Type SMT Orientation […]<\/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":[66],"tags":[1531],"chip_brand":[243],"class_list":["post-10285","post","type-post","status-publish","format-standard","hentry","category-connectors-interconnect-devices","tag-bm05b-ghs-tbtlfsnn","chip_brand-jst"],"acf":{"brief_explanation":"JST GH Series 1.25mm pitch, 5-circuit SMT top-entry shrouded header, 1A, 50V, nickel barrier, tin-plated, lead-free","date_code":"","package_case":"SMT Header (1.25mm pitch, 5 pos, top-entry)","in_stock":5582,"datasheet":"https:\/\/www.jst-mfg.com\/product\/pdf\/eng\/eGH.pdf","price":"","product_introduction":"The BM05B-GHS-TBT(LF)(SN)(N) is a 5-position 1.25mm pitch surface-mount top-entry shrouded header from JST's GH connector series with nickel barrier plating. The (N) suffix denotes a nickel barrier layer between the base metal and tin surface plating, which significantly improves solder joint reliability by preventing copper-tin intermetallic compound growth during thermal cycling. This makes the (N) variant preferred for applications requiring long-term reliability under temperature variations. The top-entry orientation provides vertical cable egress from the PCB.","working_principle":"The BM05B-GHS-TBT(LF)(SN)(N) operates identically to the standard BM05B-GHS-TBT(LF)(SN) but with enhanced solder joint reliability from the nickel barrier plating. The nickel layer (typically 0.5-1.0\u00b5m) acts as a diffusion barrier between the phosphor bronze base material and the tin surface, preventing the formation of Cu6Sn5 and Cu3Sn intermetallic compounds that grow over time at elevated temperatures and can consume the tin plating, eventually leading to poor solderability and weak joints. The 5-circuit configuration provides a compact interface for common signal routing needs.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Circuit 1<\/td>Signal<\/td>First contact position<\/td><\/tr>
      2-4<\/td>Circuit 2-4<\/td>Signal<\/td>Signal contact positions 2 through 4<\/td><\/tr>
      5<\/td>Circuit 5<\/td>Signal<\/td>Fifth contact position<\/td><\/tr><\/table>","application_scenarios":"
      • Display Connections:<\/strong> Signal interfaces for small LCD and OLED panels with nickel barrier ensuring reliable solder joints over product lifetime.<\/li>
      • Portable Electronics:<\/strong> Sub-board connections in smartphones and tablets where thermal cycling from charging\/discharging stresses solder joints.<\/li>
      • Sensor Interfaces:<\/strong> Multi-sensor connections in IoT devices with (N) variant providing enhanced reliability for field-deployed products.<\/li>
      • AV Equipment:<\/strong> Internal signal routing with improved solder joint integrity for long product life.<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Pitch<\/th>Circuits<\/th>Notes<\/th><\/tr>
        JST<\/td>BM05B-GHS-TBT(LF)(SN)<\/td>1.25mm<\/td>5<\/td>Standard version without nickel barrier<\/td><\/tr>
        JST<\/td>SM05B-GHS-TB(LF)(SN)<\/td>1.25mm<\/td>5<\/td>Side-entry variant<\/td><\/tr>
        JST<\/td>BM03B-GHS-TBT(LF)(SN)<\/td>1.25mm<\/td>3<\/td>3-circuit version<\/td><\/tr>
        Molex<\/td>51021-0500<\/td>1.25mm<\/td>5<\/td>PicoBlade alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/10285","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=10285"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/10285\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=10285"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=10285"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=10285"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=10285"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}