{"id":10617,"date":"2026-07-20T07:56:01","date_gmt":"2026-07-20T07:56:01","guid":{"rendered":"https:\/\/ic-vendor.com\/b59990c0080a070\/"},"modified":"2026-07-20T07:56:01","modified_gmt":"2026-07-20T07:56:01","slug":"b59990c0080a070","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/b59990c0080a070\/","title":{"rendered":"B59990C0080A070"},"content":{"rendered":"

Productos<\/h2>\n

The B59990C0080A070 is a PTC thermistor for overcurrent protection from EPCOS\/TDK’s B59990C series. With 55 Ohm resistance at 25C and a maximum working voltage of 80V, this radial leaded PTC device provides self-resetting overcurrent protection for transformers, motors, and electronic circuits in consumer and industrial applications.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Series<\/td>\nB59990C<\/td>\n<\/tr>\n
Tipo<\/td>\nPTC Thermistor, Overcurrent Protection<\/td>\n<\/tr>\n
Resistance (25C)<\/td>\n55 Ohm +\/-25%<\/td>\n<\/tr>\n
Maximum Working Voltage<\/td>\n80 V (AC\/DC)<\/td>\n<\/tr>\n
Rated Voltage<\/td>\n63 V<\/td>\n<\/tr>\n
Rated Current (hold)<\/td>\n30 mA<\/td>\n<\/tr>\n
Trip Current<\/td>\n60 mA<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40C to +85C<\/td>\n<\/tr>\n
Paquete<\/td>\nRadial Leaded Disk<\/td>\n<\/tr>\n
Approvals<\/td>\nUL 1434, VDE 104843<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Self-resetting overcurrent protection – no fuse replacement needed<\/li>\n
  • Compact radial leaded disk package for through-hole mounting<\/li>\n
  • UL 1434 and VDE 104843 safety approvals<\/li>\n
  • Fast thermal response for rapid trip<\/li>\n
  • Stable and repeatable trip characteristics over lifetime<\/li>\n
  • RoHS compliant and lead-free compatible<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Transformer overcurrent protection<\/li>\n
    • Motor winding short-circuit protection<\/li>\n
    • Telecommunications circuit protection<\/li>\n
    • Consumer electronics safety<\/li>\n
    • Industrial equipment overcurrent limiting<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The B59990C0080A070 is a PTC thermistor for overcurrent protection from EPCOS\/TDK’s B59990C series. With 55 Ohm resistance at 25C and a maximum working voltage of 80V, this radial leaded PTC device provides self-resetting overcurrent protection for transformers, motors, and electronic circuits in consumer and industrial applications. Key Specifications Series B59990C Type PTC Thermistor, […]<\/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":[19,13],"tags":[1958],"chip_brand":[1957],"class_list":["post-10617","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","tag-b59990c0080a070","chip_brand-epcos"],"acf":{"brief_explanation":"EPCOS\/TDK PTC thermistor, 55 Ohm, 80V, overcurrent protection, radial leaded","date_code":"","package_case":"Radial Leaded Disk","in_stock":5283,"datasheet":"https:\/\/product.tdk.com\/en\/search\/protection\/current\/ptc-thermistor\/info?part_no=B59990C0080A070","price":"$0.95 @ 1ku","product_introduction":"The EPCOS\/TDK B59990C0080A070 is a PTC thermistor for overcurrent protection from the B59990C series. With 55 Ohm resistance at 25C, a maximum working voltage of 80V, and a hold current of 30mA, this device provides reliable, self-resetting overcurrent protection for low-voltage circuits. Under normal operating conditions, the PTC maintains low resistance. When an overcurrent event occurs, self-heating causes the resistance to increase dramatically, limiting the fault current. After the fault is cleared, the device cools and resets to its low-resistance state, eliminating the need for fuse replacement.","working_principle":"The B59990C0080A070 PTC thermistor uses a polycrystalline barium titanate ceramic material with a very high positive temperature coefficient near its Curie temperature. Under normal current conditions, the device remains at ambient temperature with relatively low resistance (55 Ohm). When an overcurrent occurs, Joule heating raises the device temperature above the Curie point, causing a dramatic resistance increase (by several orders of magnitude) that limits the fault current to a safe level. When the fault is removed and the device cools, the resistance returns to its low baseline value, automatically resetting the protection. This self-resetting behavior eliminates the need for manual fuse replacement.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Lead 1<\/td>Input<\/td>Current input terminal<\/td><\/tr>
      2<\/td>Lead 2<\/td>Output<\/td>Current output terminal<\/td><\/tr><\/table>","application_scenarios":"
      • Small transformer primary overcurrent protection<\/li>
      • Motor winding short-circuit limiting<\/li>
      • Telecom line current protection<\/li>
      • Consumer appliance safety circuit<\/li>
      • Industrial sensor loop protection<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        EPCOS\/TDK<\/td>B59990C0080A050<\/td>Radial leaded<\/td>Lower resistance variant<\/td><\/tr>
        TDK<\/td>B59990C0120A070<\/td>Radial leaded<\/td>Higher voltage variant<\/td><\/tr>
        Cantherm<\/td>P65BA0055R<\/td>Disk<\/td>55 Ohm PTC comparable<\/td><\/tr>
        Murata<\/td>PTGL05AR551M2B51<\/td>SMD<\/td>55 Ohm SMD PTC<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10617","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/comments?post=10617"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10617\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=10617"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=10617"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=10617"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=10617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}