{"id":6609,"date":"2026-06-18T15:38:24","date_gmt":"2026-06-18T15:38:24","guid":{"rendered":"https:\/\/materialparts.com\/irfz44n-2\/"},"modified":"2026-06-18T15:38:24","modified_gmt":"2026-06-18T15:38:24","slug":"irfz44n-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/irfz44n-2\/","title":{"rendered":"IRFZ44N"},"content":{"rendered":"

Productos<\/h2>\n

The IRFZ44N is an N-channel power MOSFET from Infineon Technologies (originally International Rectifier). It features a 55V drain-source voltage rating and 49A continuous drain current with very low on-resistance of 17.5 m\u03a9. Packaged in a through-hole TO-220, it is widely used for switching and motor drive applications requiring high current handling and low conduction losses.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Tipo<\/td>\nN-Channel MOSFET<\/td>\n<\/tr>\n
VDS (Drain-Source Voltage)<\/td>\n55V<\/td>\n<\/tr>\n
VGS (Gate-Source Voltage)<\/td>\n\u00b120V<\/td>\n<\/tr>\n
ID (Continuous Drain Current)<\/td>\n49A<\/td>\n<\/tr>\n
RDS(ON)<\/td>\n17.5 m\u03a9 (typical at VGS=10V)<\/td>\n<\/tr>\n
Gate Threshold Voltage<\/td>\n2.0V to 4.0V<\/td>\n<\/tr>\n
Gate Charge<\/td>\n65 nC (typical)<\/td>\n<\/tr>\n
Power Dissipation<\/td>\n110W (at TC=25\u00b0C)<\/td>\n<\/tr>\n
Rise Time<\/td>\n60 ns (typical)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-55\u00b0C to +175\u00b0C (junction)<\/td>\n<\/tr>\n
Paquete<\/td>\nTO-220AB<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Ultra-low on-resistance: 17.5 m\u03a9 for minimal conduction losses<\/li>\n
  • High current capability: 49A continuous<\/li>\n
  • Logic-level gate threshold (2-4V) for direct MCU drive<\/li>\n
  • Fast switching with low gate charge<\/li>\n
  • Avalanche rated for ruggedness in inductive loads<\/li>\n
  • TO-220 through-hole package for easy prototyping and heatsink mounting<\/li>\n
  • Industry-standard pinout (G-D-S left to right, front view)<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Motor drive and speed control (DC motors, BLDC)<\/li>\n
    • Power switching and load control<\/li>\n
    • Battery management and protection<\/li>\n
    • Solar charge controller power stage<\/li>\n
    • Inverter and converter power stages<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The IRFZ44N is an N-channel power MOSFET from Infineon Technologies (originally International Rectifier). It features a 55V drain-source voltage rating and 49A continuous drain current with very low on-resistance of 17.5 m\u03a9. Packaged in a through-hole TO-220, it is widely used for switching and motor drive applications requiring high current handling and low […]<\/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":[],"chip_brand":[173],"class_list":["post-6609","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-infineon"],"acf":{"brief_explanation":"N-ch MOSFET, 55V, 49A, 17.5m\u03a9, TO-220","date_code":"","package_case":"TO-220AB (10.4\u00d79.0\u00d74.6 mm, through-hole)","in_stock":14200,"datasheet":"https:\/\/www.infineon.com\/dgdl\/irfz44npbf.pdf","price":"$0.85 @ 1ku","product_introduction":"The IRFZ44N from Infineon Technologies is an N-channel power MOSFET rated at 55V\/49A with an ultra-low on-resistance of 17.5 m\u03a9. Designed for high-efficiency switching applications, it features a logic-level gate threshold (2-4V) enabling direct drive from 5V microcontrollers. The TO-220 package supports heatsink mounting for high-power applications including motor drives, power switching, and battery management systems.","working_principle":"The IRFZ44N is a vertical power MOSFET using a DMOS (Double-diffused MOS) structure. When a positive gate-source voltage exceeds the threshold (2-4V), an inversion layer forms in the P-body region, creating a conductive channel between drain and source. The very low RDS(ON) of 17.5 m\u03a9 is achieved through a dense cell structure that provides many parallel conduction paths. The device is fully enhanced at VGS=10V for minimum on-resistance. The body-drain diode provides inherent reverse conduction for inductive load applications. Avalanche rating ensures the device can absorb energy from inductive kickback without external protection.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Gate<\/td>Input<\/td>MOSFET gate (drive with 5-10V for full enhancement)<\/td><\/tr>\n
      2<\/td>Drain<\/td>Output<\/td>MOSFET drain (connects to load)<\/td><\/tr>\n
      3<\/td>Source<\/td>Power<\/td>MOSFET source (connects to ground, tab connected)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • DC motor drive and PWM speed control circuits<\/li>\n
      • High-current power switching and load control up to 49A<\/li>\n
      • Battery management system switching and protection<\/li>\n
      • Solar charge controller power stage<\/li>\n
      • Inverter half-bridge and full-bridge power stages<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        Infineon<\/td>IRFZ44NPbF<\/td>TO-220<\/td>Lead-free version<\/td><\/tr>\n
        Infineon<\/td>IRFZ48N<\/td>TO-220<\/td>60V, 64A, higher rating<\/td><\/tr>\n
        Vishay<\/td>IRLZ44N<\/td>TO-220<\/td>Logic-level gate, 5V drive optimized<\/td><\/tr>\n
        STMicroelectronics<\/td>STP55NF06L<\/td>TO-220<\/td>60V, 50A, logic-level<\/td><\/tr>\n
        ON Semiconductor<\/td>FDP55N06<\/td>TO-220<\/td>60V, 50A, similar specs<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6609","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=6609"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6609\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=6609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=6609"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=6609"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=6609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}