{"id":10623,"date":"2026-07-20T07:56:15","date_gmt":"2026-07-20T07:56:15","guid":{"rendered":"https:\/\/ic-vendor.com\/b59751c0120a070\/"},"modified":"2026-07-20T07:56:15","modified_gmt":"2026-07-20T07:56:15","slug":"b59751c0120a070","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/b59751c0120a070\/","title":{"rendered":"B59751C0120A070"},"content":{"rendered":"

Productos<\/h2>\n

The B59751C0120A070 is a PTC inrush current limiter (ICL) from EPCOS\/TDK’s B59751C (C751) series. With 50 Ohm resistance at 25C and a maximum working voltage of 280VAC, this radial leaded PTC limiter provides self-resetting inrush current protection for consumer electronics, home appliances, and industrial power supplies.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Series<\/td>\nB59751C (C751)<\/td>\n<\/tr>\n
Tipo<\/td>\nPTC Inrush Current Limiter<\/td>\n<\/tr>\n
Resistance (25C)<\/td>\n50 Ohm +\/-25%<\/td>\n<\/tr>\n
Maximum Working Voltage (AC)<\/td>\n280 VAC<\/td>\n<\/tr>\n
Maximum DC Link Voltage<\/td>\n400 VDC<\/td>\n<\/tr>\n
Thermal Capacity<\/td>\n1.4 J\/K (typical)<\/td>\n<\/tr>\n
Hold Current<\/td>\n87 mA<\/td>\n<\/tr>\n
Trip Current<\/td>\n173 mA<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40C to +125C<\/td>\n<\/tr>\n
Paquete<\/td>\nRadial Leaded Disk<\/td>\n<\/tr>\n
Dimensions<\/td>\n13.0 x 18.0 mm (W x H)<\/td>\n<\/tr>\n
Approvals<\/td>\nUL (E69802), VDE (40040539)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Self-resetting inrush current limiting – no manual reset required<\/li>\n
  • Maximum working voltage of 280VAC for mains applications<\/li>\n
  • DC link voltage capability up to 400VDC<\/li>\n
  • Compact radial leaded disk package<\/li>\n
  • UL and VDE safety approvals<\/li>\n
  • Stable and repeatable protection characteristics<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Consumer electronics power supply inrush limiting<\/li>\n
    • Home appliance startup current protection<\/li>\n
    • Industrial power supply inrush suppression<\/li>\n
    • LED driver inrush current limiting<\/li>\n
    • Frequency converter pre-charge circuit<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The B59751C0120A070 is a PTC inrush current limiter (ICL) from EPCOS\/TDK’s B59751C (C751) series. With 50 Ohm resistance at 25C and a maximum working voltage of 280VAC, this radial leaded PTC limiter provides self-resetting inrush current protection for consumer electronics, home appliances, and industrial power supplies. Key Specifications Series B59751C (C751) Type PTC […]<\/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":[1964],"chip_brand":[1957],"class_list":["post-10623","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","tag-b59751c0120a070","chip_brand-epcos"],"acf":{"brief_explanation":"EPCOS\/TDK PTC inrush current limiter, 50 Ohm, 280VAC, radial leaded","date_code":"","package_case":"Radial Leaded Disk, 13.0 x 18.0 mm","in_stock":6194,"datasheet":"https:\/\/product.tdk.com\/en\/search\/protection\/current\/ptc-limiter\/info?part_no=B59751C0120A070%20%28C751_ICL%29","price":"$0.95 @ 1ku","product_introduction":"The EPCOS\/TDK B59751C0120A070 is a PTC inrush current limiter from the B59751C (C751) series, providing self-resetting inrush current protection for 280VAC mains applications. With 50 Ohm cold resistance and a hold current of 87mA, this device limits startup surge currents in consumer electronics, home appliances, and industrial power supplies. When current flows and the device self-heats, its resistance decreases to minimize steady-state power loss. If an overcurrent occurs, the PTC trips and limits the fault current until the condition clears and the device resets.","working_principle":"The B59751C0120A070 PTC inrush current limiter uses a polycrystalline ceramic material with a high positive temperature coefficient. At power-on, the device is at ambient temperature with 50 Ohm resistance, limiting the peak inrush current drawn by downstream capacitors and rectifiers. As current flows, Joule heating raises the device temperature, causing resistance to decrease and minimizing steady-state power dissipation. If an overcurrent condition develops, the device temperature rises above the Curie point, causing a dramatic resistance increase that limits fault current. When the fault clears and the device cools, it returns to its low-resistance operating state automatically.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Lead 1<\/td>Input<\/td>Connect to AC line or DC supply<\/td><\/tr>
      2<\/td>Lead 2<\/td>Output<\/td>Connect to load side<\/td><\/tr><\/table>","application_scenarios":"
      • Consumer SMPS 230VAC input inrush current limiting<\/li>
      • Home appliance power-on surge protection<\/li>
      • LED driver startup current suppression<\/li>
      • Industrial power supply pre-charge circuit<\/li>
      • Frequency converter auxiliary supply protection<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        EPCOS\/TDK<\/td>B59751C0120A050<\/td>Radial leaded<\/td>Lower voltage variant<\/td><\/tr>
        EPCOS\/TDK<\/td>B59751C0130A070<\/td>Radial leaded<\/td>Higher voltage variant<\/td><\/tr>
        Ametherm<\/td>SL32-50R010<\/td>Disk<\/td>50 Ohm NTC ICL alternative<\/td><\/tr>
        Cantherm<\/td>MS22-5005-B<\/td>Disk<\/td>50 Ohm inrush limiter<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10623","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=10623"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10623\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=10623"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=10623"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=10623"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=10623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}