{"id":6516,"date":"2026-06-17T03:37:33","date_gmt":"2026-06-17T03:37:33","guid":{"rendered":"https:\/\/materialparts.com\/3296w-1-103lf\/"},"modified":"2026-06-17T03:37:33","modified_gmt":"2026-06-17T03:37:33","slug":"3296w-1-103lf","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/3296w-1-103lf\/","title":{"rendered":"3296W-1-103LF"},"content":{"rendered":"<h2>\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n<p>The 3296W-1-103LF from Bourns is a 10 k\u03a9 (10,000 \u03a9) cermet trimmer potentiometer with \u00b110% tolerance, 0.5W power rating, and 25-turn adjustment for precise resistance setting. It features a top-adjust configuration in a compact through-hole package with J-hook terminals, designed for industrial calibration and circuit tuning applications.<\/p>\n<h2>\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n<ul>\n<li>Resistance: 10 k\u03a9 (103 = 10 \u00d7 10\u00b3)<\/li>\n<li>Tolerance: \u00b110%<\/li>\n<li>Power Rating: 0.5W at 70\u00b0C<\/li>\n<li>Maximum Voltage: 200V<\/li>\n<li>Adjustment: 25 turns (multi-turn)<\/li>\n<li>Adjustment Type: Top adjust<\/li>\n<li>Resolution: Essentially infinite (cermet element)<\/li>\n<li>Contact Resistance Variation: \u22642%<\/li>\n<li>Insulation Resistance: \u22651000 M\u03a9 at 500V DC<\/li>\n<li>Dielectric Strength: 900V AC<\/li>\n<li>Temperature Range: -55\u00b0C ~ +125\u00b0C<\/li>\n<li>Temperature Coefficient: \u00b1100 ppm\/\u00b0C<\/li>\n<li>Rotation Life: 200 cycles<\/li>\n<li>Package: Through-hole, J-hook terminals<\/li>\n<li>Compliance: RoHS (LF suffix)<\/li>\n<\/ul>\n<h2>\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n<ul>\n<li>25-turn precision adjustment for fine resolution<\/li>\n<li>Cermet resistive element for stability<\/li>\n<li>Top-adjust configuration for PCB-mounted access<\/li>\n<li>Sealed construction for flux resistance<\/li>\n<li>J-hook terminals for secure PCB mounting<\/li>\n<li>RoHS-compliant lead-free version<\/li>\n<li>Wide operating temperature range<\/li>\n<\/ul>\n<h2>\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n<ul>\n<li>Power supply output voltage calibration<\/li>\n<li>Op-amp offset trimming<\/li>\n<li>ADC\/DAC reference voltage adjustment<\/li>\n<li>Timer and oscillator frequency tuning<\/li>\n<li>Sensor signal conditioning calibration<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Product Overview The 3296W-1-103LF from Bourns is a 10 k\u03a9 (10,000 \u03a9) cermet trimmer potentiometer with \u00b110% tolerance, 0.5W power rating, and 25-turn adjustment for precise resistance setting. It features a top-adjust configuration in a compact through-hole package with J-hook terminals, designed for industrial calibration and circuit tuning applications. Key Specifications Resistance: 10 k\u03a9 (103 [&hellip;]<\/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":[220],"class_list":["post-6516","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-bourns"],"acf":{"brief_explanation":"10k\u03a9 25-turn cermet trimmer potentiometer, 0.5W, top-adjust, through-hole J-hook, RoHS","date_code":"","package_case":"Through-hole (9.53 x 9.53 x 4.83 mm)","in_stock":11200,"datasheet":"https:\/\/www.bourns.com\/docs\/product-datasheets\/3296.pdf","price":"$0.42","product_introduction":"The 3296W-1-103LF from Bourns is a precision 25-turn cermet trimmer potentiometer with 10 k\u03a9 resistance. The multi-turn design provides fine adjustment resolution that is impossible with single-turn trimmers \u2014 each full rotation changes the wiper position by only 4% of the total range. This makes the device ideal for applications requiring precise calibration, such as power supply voltage setpoints, op-amp offset nulling, and reference voltage trimming. The cermet (ceramic-metal) resistive element offers superior stability compared to carbon composition elements, with a temperature coefficient of \u00b1100 ppm\/\u00b0C and minimal drift over time and environmental exposure. The W variant features top-adjust access and J-hook terminals for secure through-hole PCB mounting. The LF suffix indicates RoHS-compliant lead-free construction.","working_principle":"The 3296W-1-103LF operates as a three-terminal variable voltage divider. The resistive element is a cermet (ceramic-metal composite) film deposited on a substrate in a helical pattern. A sliding contact (wiper) moves along the helical track when the adjustment screw is turned, changing the ratio between the wiper terminal and the two end terminals. The 25-turn adjustment mechanism uses a worm gear to translate the rotary motion of the adjustment screw into a slow linear progression of the wiper along the helical track. Each complete turn of the adjustment screw moves the wiper by approximately 1\/25th of the total resistance range (about 400 \u03a9 for a 10 k\u03a9 unit), providing fine resolution. The cermet element provides a continuous (essentially infinite) resolution with no discrete steps, unlike digital potentiometers.","pin_description":"<table><tr><th>Pin<\/th><th>Name<\/th><th>Function<\/th><\/tr><tr><td>1<\/td><td>CCW<\/td><td>Counter-clockwise end terminal (minimum resistance)<\/td><\/tr><tr><td>2<\/td><td>Wiper<\/td><td>Adjustable output (varies with screw position)<\/td><\/tr><tr><td>3<\/td><td>CW<\/td><td>Clockwise end terminal (maximum resistance)<\/td><\/tr><\/table>","application_scenarios":"The 3296W-1-103LF is widely used in power supply designs where the output voltage must be precisely calibrated during production test. By placing the trimmer in the feedback resistor divider, technicians can set the output voltage to within millivolts of the target. In op-amp circuits, the trimmer nulls input offset voltage for precision DC applications. For ADC\/DAC circuits, the 10 k\u03a9 range is ideal for adjusting the voltage reference to achieve full-scale accuracy. In timer circuits, the multi-turn resolution enables fine-tuning of oscillation frequency or time delay. The sealed construction prevents contamination during wave soldering and in harsh operating environments.","alternative_models":"<table><tr><th>Model<\/th><th>Manufacturer<\/th><th>Key Difference<\/th><\/tr><tr><td>3296W-1-503LF<\/td><td>Bourns<\/td><td>50 k\u03a9 version<\/td><\/tr><tr><td>3386W-1-103LF<\/td><td>Bourns<\/td><td>Same 10k\u03a9, smaller package<\/td><\/tr><tr><td>PV36W103C01B00<\/td><td>Murata<\/td><td>10k\u03a9, 12-turn, similar footprint<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6516","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=6516"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6516\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6516"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6516"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6516"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6516"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}