{"id":9399,"date":"2026-07-03T06:18:50","date_gmt":"2026-07-03T06:18:50","guid":{"rendered":"https:\/\/materialparts.com\/pmr50hzpfu7l00\/"},"modified":"2026-07-03T07:38:15","modified_gmt":"2026-07-03T07:38:15","slug":"pmr50hzpfu7l00","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/pmr50hzpfu7l00\/","title":{"rendered":"PMR50HZPFU7L00"},"content":{"rendered":"

Productos<\/h2>\n

The PMR50HZPFU7L00 is a 5025-size metal alloy current sensing resistor from Panasonic, with 7mOhm resistance and 1W power rating. The PMR series uses a metal alloy resistive element for low temperature coefficient (TCR +\/-50 ppm\/C) and excellent long-term stability. These ultra-low resistance values are used for current sensing in power supply, motor drive, and battery management applications where high accuracy and low inductance are required.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Resistance<\/td>\n7 mOhm (0.007 Ohm)<\/td>\n<\/tr>\n
Tolerance<\/td>\n+\/-1% (F)<\/td>\n<\/tr>\n
Power Rating<\/td>\n1W at 70C ambient<\/td>\n<\/tr>\n
Temperature Coefficient (TCR)<\/td>\n+\/-50 ppm\/C<\/td>\n<\/tr>\n
Max Current<\/td>\n~12A (calculated from P=I2R at 1W)<\/td>\n<\/tr>\n
Inductance<\/td>\n<5 nH (low inductance for high-frequency sensing)<\/td>\n<\/tr>\n
Case Size<\/td>\n5025 (5.0 x 2.5 x 1.0 mm)<\/td>\n<\/tr>\n
Resistor Technology<\/td>\nMetal Alloy (bulk metal)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-55C to +170C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Ultra-low 7mOhm resistance for current sensing<\/li>\n
  • Metal alloy element with +\/-50 ppm\/C TCR<\/li>\n
  • +\/-1% tolerance for accurate current measurement<\/li>\n
  • 1W power rating in 5025 footprint<\/li>\n
  • Low inductance (<5nH) for high-frequency current sensing<\/li>\n
  • Four-terminal (Kelvin) sensing capability in 2-terminal footprint<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • DC-DC converter output current sensing<\/li>\n
    • Battery management system current monitoring<\/li>\n
    • Motor drive phase current sensing<\/li>\n
    • Inverter bus current measurement<\/li>\n
    • Server and telecom power supply current limiting<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The PMR50HZPFU7L00 is a 5025-size metal alloy current sensing resistor from Panasonic, with 7mOhm resistance and 1W power rating. The PMR series uses a metal alloy resistive element for low temperature coefficient (TCR +\/-50 ppm\/C) and excellent long-term stability. These ultra-low resistance values are used for current sensing in power supply, motor drive, […]<\/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":[57,13],"tags":[545],"chip_brand":[238],"class_list":["post-9399","post","type-post","status-publish","format-standard","hentry","category-insulated-gate-bipolar-transistors-igbt","category-integrated-circuits-ics","tag-pmr50hzpfu7l00","chip_brand-panasonic"],"acf":{"brief_explanation":"Metal alloy resistor 5025, 7mOhm, +\/-1%, 1W, +\/-50ppm\/C TCR, low inductance, current sense","date_code":"25+","package_case":"5025 (5.0 x 2.5 x 1.0 mm)","in_stock":19657,"datasheet":"https:\/\/industrial.panasonic.com\/cdbs\/www-data\/pdf\/ACA0000\/ACA0000C17.pdf","price":"$0.45 @ 1ku","product_introduction":"The PMR50HZPFU7L00 is a 7mOhm metal alloy current sensing resistor from Panasonic in a 5025 package, rated for 1W power dissipation. The metal alloy resistive element provides a very low temperature coefficient of +\/-50 ppm\/C, ensuring accurate current measurement across the operating temperature range. With +\/-1% tolerance and low inductance (<5nH), it is optimized for high-precision current sensing in DC-DC converters, battery management systems, and motor drive applications.","working_principle":"The PMR50HZPFU7L00 operates as a current sense resistor (shunt resistor). When current flows through the 7mOhm resistance, a voltage drop proportional to the current is generated (V = I x R). For example, at 10A, the voltage drop is 70mV, which can be measured by a current sense amplifier or an ADC. The metal alloy element is a bulk metal resistive layer (typically manganese-copper or nickel-chromium alloy) that provides a nearly zero temperature coefficient (TCR = +\/-50 ppm\/C), meaning the resistance changes by only 0.005% per degree C. This stability is critical for current sensing accuracy in applications where the resistor temperature can vary significantly due to self-heating (1W at 12A). The low inductance (<5nH) is achieved by the flat, wide geometry of the metal alloy element, ensuring that the impedance remains resistive even at high switching frequencies (>1MHz) typical of DC-DC converters. For Kelvin (4-wire) sensing, PCB layout should route the sense traces directly to the resistor terminals, separate from the current-carrying traces, to eliminate parasitic resistance in the measurement.","pin_description":"\n
      Terminal<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Terminal A (Current In)<\/td>Power<\/td>High-current terminal (no polarity)<\/td><\/tr>\n
      2<\/td>Terminal B (Current Out)<\/td>Power<\/td>High-current terminal (no polarity)<\/td><\/tr>\n<\/table>\n

      For Kelvin sensing: Route sense traces to inner edges of terminals, separate from current-carrying traces.<\/p>","application_scenarios":"\n
      Application<\/th>Circuit Role<\/th>Key Requirement<\/th><\/tr>\n
      DC-DC Current Sense<\/td>Output current measurement shunt<\/td>7mOhm, 1W, low TCR, low inductance<\/td><\/tr>\n
      BMS Current Monitor<\/td>Battery pack current shunt<\/td>7mOhm, 12A max, +\/-1%, stable TCR<\/td><\/tr>\n
      Motor Phase Sense<\/td>Inverter phase current shunt<\/td>7mOhm, low inductance, 1W<\/td><\/tr>\n
      Server PSU<\/td>Output current limiting shunt<\/td>7mOhm, 1W, 50ppm\/C TCR<\/td><\/tr>\n
      Charger Current<\/td>Charging current measurement<\/td>7mOhm, low TCR, accurate at 5-12A<\/td><\/tr>\n<\/table>","alternative_models":"\n
      Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>\n
      PMR50HZPFU5L00<\/td>Panasonic<\/td>5mOhm variant (higher current range)<\/td><\/tr>\n
      PMR50HZPFU10L00<\/td>Panasonic<\/td>10mOhm variant (higher voltage at same current)<\/td><\/tr>\n
      WSL25127L000FEA<\/td>Vishay<\/td>7mOhm, 1W, 2512, metal strip<\/td><\/tr>\n
      LR2512-7-R000-F<\/td>TTE\/Susumu<\/td>7mOhm, 1W, 2512, metal plate<\/td><\/tr>\n
      CRA2512-FZ-R007ELF<\/td>Bourns<\/td>7mOhm, 1W, 2512, metal alloy<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/9399","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=9399"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/9399\/revisions"}],"predecessor-version":[{"id":9427,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/9399\/revisions\/9427"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=9399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=9399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=9399"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=9399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}