{"id":5831,"date":"2026-06-11T05:31:25","date_gmt":"2026-06-11T05:31:25","guid":{"rendered":"https:\/\/materialparts.com\/mcp41050-i-sn\/"},"modified":"2026-06-11T07:00:08","modified_gmt":"2026-06-11T07:00:08","slug":"mcp41050-i-sn","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/mcp41050-i-sn\/","title":{"rendered":"MCP41050-I\/SN"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The MCP41050-I\/SN from Microchip is a single-channel 256-tap digital potentiometer with 50kOhm resistance and SPI interface in SOIC-8 for programmable resistance.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n
\u5305\u88c5<\/td>\nSOIC-8 (4.9×3.9mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • See datasheet for complete specifications<\/li>\n
  • Industry-standard package<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial control<\/li>\n
    • Consumer electronics<\/li>\n
    • Communication equipment<\/li>\n
    • Power management<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MCP41050-I\/SN from Microchip is a single-channel 256-tap digital potentiometer with 50kOhm resistance and SPI interface in SOIC-8 for programmable resistance. Key Specifications Package SOIC-8 (4.9×3.9mm) Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Power management<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,13],"tags":[],"chip_brand":[134],"class_list":["post-5831","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-microchip"],"acf":{"brief_explanation":"Single digital pot, 50kOhm, 256-tap, SPI, SOIC-8","date_code":"","package_case":"SOIC-8 (4.9x3.9mm)","in_stock":3617,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/MCP41050","price":"$0.80 @ 1ku","product_introduction":"The MCP41050-I\/SN from Microchip is a single-channel 256-tap digital potentiometer with 50kOhm resistance and SPI interface in SOIC-8 for programmable resistance.","working_principle":"The MCP41050-I\/SN is a single 50kOhm 256-tap digital potentiometer from Microchip in SOIC-8 with SPI interface. The resistor string consists of 255 equal resistors connected in series between terminals PA and PB. The wiper (PW) connects to one of 256 nodes (0-255) via CMOS switches controlled by the 8-bit wiper register. The resistance between PW and PA is RWA = (256 - D) x RAB\/256, and between PW and PB is RWB = D x RAB\/256, where D is the wiper code (0-255) and RAB is the total resistance (50kOhm +\/-20%). The SPI command format is a 16-bit word: 2 don't care bits + 2 command bits + 4 address bits + 8 data bits. The wiper resistance (contact resistance of the CMOS switch) is typically 75Ohm, which limits accuracy at low wiper positions. The device can also be configured as a variable resistor (rheostat) by connecting only one terminal and the wiper. Power consumption is less than 1uA in standby. The -I suffix specifies industrial temperature range (-40C to +85C). Typical applications include LCD contrast adjustment, gain control, and voltage trimming in circuits where mechanical potentiometers would be impractical.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>CS<\/td>Input<\/td>SPI chip select (active low)<\/td><\/tr>
      2<\/td>SCK<\/td>Input<\/td>SPI clock<\/td><\/tr>
      3<\/td>SI<\/td>Input<\/td>SPI data input<\/td><\/tr>
      4<\/td>VSS<\/td>Power<\/td>Ground<\/td><\/tr>
      5<\/td>PA<\/td>Terminal<\/td>Potentiometer terminal A (end terminal)<\/td><\/tr>
      6<\/td>PW<\/td>Terminal<\/td>Potentiometer wiper (variable output)<\/td><\/tr>
      7<\/td>PB<\/td>Terminal<\/td>Potentiometer terminal B (end terminal)<\/td><\/tr>
      8<\/td>VDD<\/td>Power<\/td>Supply (2.7-5.5V)<\/td><\/tr><\/table>","application_scenarios":"
    • Industrial control<\/li>
    • Consumer electronics<\/li>
    • Communication equipment<\/li>
    • Power management<\/li>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
      Microchip<\/td>MCP41010-I\/SN<\/td>SOIC-8<\/td>10kOhm version, same footprint<\/td><\/tr>
      Microchip<\/td>MCP42050-I\/P<\/td>DIP-14<\/td>Dual 50kOhm digital pot<\/td><\/tr>
      Analog Devices<\/td>AD5171BCPZ10RM7<\/td>LFCSP-10<\/td>50kOhm digital pot, I2C, OTP<\/td><\/tr>
      Maxim<\/td>MAX5434MEUA+T<\/td>uMAX-8<\/td>50kOhm, 256-tap, SPI<\/td><\/tr>
      Renesas<\/td>ISL22415WFU10Z<\/td>TSSOP-14<\/td>50kOhm, 256-tap, I2C, NV<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5831","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=5831"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5831\/revisions"}],"predecessor-version":[{"id":5981,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5831\/revisions\/5981"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5831"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}