{"product_id":"wh28-t-b100k-5-pin-pulley-potentiometer-belt-drive-rotary-switch","title":"WH28-T B100K 5-Pin Pulley Potentiometer Belt Drive Switch","description":"\n\u003ch2\u003eWH28-T B100K 5-Pin Pulley Potentiometer with Belt Drive\u003c\/h2\u003e\n\u003cp\u003eThe WH28-T B100K 5-Pin Pulley Potentiometer is a compact, reliable rotary control component designed for electronics projects, audio equipment, and DIY circuit builds. Featuring a pulley-style belt drive mechanism, this potentiometer offers smooth rotational control with a B100K resistance taper — making it an excellent choice for engineers, hobbyists, and repair technicians who need precise, consistent signal adjustment.\u003c\/p\u003e\n\n\u003cp\u003eCrafted from durable plastic and metal materials, this potentiometer is built to handle regular use in a variety of electronic assemblies. Its 5-pin configuration ensures stable connectivity, while the pulley design allows belt-driven actuation for panel-mounted or remote-control applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e WH28-T Back B100K\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 5-Pin pulley potentiometer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResistance Taper:\u003c\/strong\u003e B100K (linear taper)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type:\u003c\/strong\u003e Belt pulley rotary mechanism\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic + Metal construction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Approximately 2.7 × 1.5 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e 1 × Potentiometer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eMade in Mainland China\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat Is a Pulley Potentiometer?\u003c\/h3\u003e\n\u003cp\u003eA pulley potentiometer uses a belt-and-wheel mechanism to remotely rotate the resistive element. This is ideal for applications where the control knob must be positioned away from the circuit board — common in audio panels, industrial controls, and custom electronic enclosures. The B100K value (100kΩ linear) is widely used for volume, tone, and signal-level adjustments.\u003c\/p\u003e\n\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY electronics and hobby circuit builds\u003c\/li\u003e\n  \u003cli\u003eAudio equipment repair and modification\u003c\/li\u003e\n  \u003cli\u003eCustom control panels and enclosures\u003c\/li\u003e\n  \u003cli\u003eElectronic prototyping and breadboard testing\u003c\/li\u003e\n  \u003cli\u003eReplacement part for existing belt-drive potentiometer assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Need\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/25-in-1-precision-magnetic-screwdriver-set-pro-repair-tool-kit\"\u003e25-in-1 Precision Magnetic Screwdriver Set | Pro Repair Kit\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/waterproof-cable-gland-set-pg7-pg9-nylon-connectors-10-pack\"\u003e10-Pack Waterproof Cable Glands PG7 PG9 Nylon Connectors\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-pack-rubber-strain-relief-cord-boot-protector-sleeves-4-6-5-2-6mm\"\u003e10-Pack Rubber Strain Relief Cord Boot Protectors 4.6–6mm\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003ePlease allow a 2–3% dimensional variance due to manual measurement. Actual product color may vary slightly from images due to screen calibration differences.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does B100K mean on this potentiometer?\u003c\/h4\u003e\n\u003cp\u003eA: \"B100K\" indicates a linear taper (B) with a total resistance of 100 kilohms (100K). Linear taper potentiometers provide an even, proportional change in resistance as you rotate them, making them ideal for general-purpose electronics, volume controls, and signal-level adjustments.\u003c\/p\u003e\n\u003ch4\u003eQ: What is a pulley potentiometer used for?\u003c\/h4\u003e\n\u003cp\u003eA: A pulley potentiometer uses a belt-and-wheel drive system to allow the control shaft to be located at a distance from the actual resistive element. This makes it perfect for custom panel builds, audio equipment, and any enclosure where direct shaft access is not practical.\u003c\/p\u003e\n\u003ch4\u003eQ: How many pins does this potentiometer have, and how is it wired?\u003c\/h4\u003e\n\u003cp\u003eA: This potentiometer has 5 pins. Typical wiring uses the outer pins for the full resistance path and the wiper pin(s) for the variable output. Please refer to your specific circuit schematic or datasheet for the exact pin assignment matching your application.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this potentiometer compatible with standard DIY electronics kits?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The WH28-T B100K 5-pin pulley potentiometer is a standard component that is widely compatible with DIY electronics kits, breadboards, and PCB assemblies that call for a 100kΩ linear potentiometer with a belt-drive pulley mechanism.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does B100K mean on this potentiometer?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"\\\"B100K\\\" indicates a linear taper (B) with a total resistance of 100 kilohms (100K). Linear taper potentiometers provide an even, proportional change in resistance as you rotate them, making them ideal for general-purpose electronics, volume controls, and signal-level adjustments.\"}}, {\"@type\": \"Question\", \"name\": \"What is a pulley potentiometer used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A pulley potentiometer uses a belt-and-wheel drive system to allow the control shaft to be located at a distance from the actual resistive element. This makes it perfect for custom panel builds, audio equipment, and any enclosure where direct shaft access is not practical.\"}}, {\"@type\": \"Question\", \"name\": \"How many pins does this potentiometer have, and how is it wired?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This potentiometer has 5 pins. Typical wiring uses the outer pins for the full resistance path and the wiper pin(s) for the variable output. 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The WH28-T B100K 5-pin pulley potentiometer is a standard component that is widely compatible with DIY electronics kits, breadboards, and PCB assemblies that call for a 100kΩ linear potentiometer with a belt-drive pulley mechanism.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Components \u0026 Modules\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/collections\/components-modules\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"WH28-T B100K 5-Pin Pulley Potentiometer Belt Drive Switch\", \"item\": \"https:\/\/sdf9i0-k1.myshopify.com\/products\/wh28-t-b100k-5-pin-pulley-potentiometer-belt-drive-rotary-switch\"}]}\u003c\/script\u003e","brand":"QXL","offers":[{"title":"1Pc","offer_id":46960540844231,"sku":"3:1982800004#1Pc","price":15.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/8314\/9255\/files\/S8a20ce0f663e423f8c696613751bd264E.webp?v=1786038558","url":"https:\/\/qxlcustomerservice.com\/products\/wh28-t-b100k-5-pin-pulley-potentiometer-belt-drive-rotary-switch","provider":"QXL","version":"1.0","type":"link"}