{"product_id":"100-pcs-wh28a-3a-b504-500kω-red-rotary-potentiometer-bulk-pack","title":"100 PCS WH28A-3A-B504 500kΩ Red Rotary Potentiometer Bulk Pack","description":"\u003ch2\u003e100-Pack WH28A-3A-B504 Red Circular Rotary Potentiometer\u003c\/h2\u003e\n\u003cp\u003eStock up and save with this bulk pack of 100 high-quality \u003cstrong\u003eWH28A-3A-B504 rotary potentiometers\u003c\/strong\u003e. Featuring a bold red circular dial and a 500kΩ (B504) resistance value, these panel-mount governor knobs are ideal for electronics projects, prototyping boards, DIY audio equipment, motor speed control circuits, and industrial control panels. Each unit delivers smooth, reliable rotation with consistent resistance output — perfect for engineers, hobbyists, and repair technicians who need dependable components in quantity.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e WH28A-3A-B504 (500kΩ linear taper)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 100 pieces per pack — great for bulk projects and restocking\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Style:\u003c\/strong\u003e Red circular rotary governor knob for easy manual adjustment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Speed control, volume control, signal attenuation, DIY electronics\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Panel-mount single-turn rotary potentiometer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuild:\u003c\/strong\u003e Durable construction for long-lasting, consistent performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e100 × WH28A-3A-B504 Red Rotary Potentiometers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eGreat Pairings for Your Workshop\u003c\/h3\u003e\n\u003cp\u003eLooking for more tools and accessories for your projects? Check out these related items from our store:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\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 resistance value do these WH28A-3A-B504 potentiometers have?\u003c\/h4\u003e\n\u003cp\u003eA: The \"B504\" code indicates a \u003cstrong\u003e500kΩ linear taper (B-taper)\u003c\/strong\u003e resistance value. This makes them well-suited for signal-level control, audio mixing, speed governing, and general-purpose electronic circuit applications.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these potentiometers compatible with standard panel-mount enclosures?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The WH28A (φ28mm) form factor is a standard size that fits common panel-mount cutouts. They are widely used in DIY electronics, control panels, and prototyping applications. Always verify the shaft diameter and mounting hole dimensions against your specific enclosure before installation.\u003c\/p\u003e\n\u003ch4\u003eQ: Why buy 100 pieces at once?\u003c\/h4\u003e\n\u003cp\u003eA: Buying in bulk ensures you always have spares on hand for prototyping, production runs, repairs, or classroom and workshop use. The per-unit cost is significantly lower compared to purchasing individual pieces, making this pack ideal for engineers, educators, and electronics enthusiasts.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these potentiometers RoHS compliant or free from high-concern chemicals?\u003c\/h4\u003e\n\u003cp\u003eA: According to the product specifications, no high-concern chemicals are listed for these components, making them suitable for general electronics assembly and hobby use.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What resistance value do these WH28A-3A-B504 potentiometers have?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The \\\"B504\\\" code indicates a 500kΩ linear taper (B-taper) resistance value. This makes them well-suited for signal-level control, audio mixing, speed governing, and general-purpose electronic circuit applications.\"}}, {\"@type\": \"Question\", \"name\": \"Are these potentiometers compatible with standard panel-mount enclosures?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The WH28A (φ28mm) form factor is a standard size that fits common panel-mount cutouts. They are widely used in DIY electronics, control panels, and prototyping applications. Always verify the shaft diameter and mounting hole dimensions against your specific enclosure before installation.\"}}, {\"@type\": \"Question\", \"name\": \"Why buy 100 pieces at once?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Buying in bulk ensures you always have spares on hand for prototyping, production runs, repairs, or classroom and workshop use. The per-unit cost is significantly lower compared to purchasing individual pieces, making this pack ideal for engineers, educators, and electronics enthusiasts.\"}}, {\"@type\": \"Question\", \"name\": \"Are these potentiometers RoHS compliant or free from high-concern chemicals?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"According to the product specifications, no high-concern chemicals are listed for these components, making them suitable for general electronics assembly and hobby use.\"}}]}\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:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"100 PCS WH28A-3A-B504 500kΩ Red Rotary Potentiometer Bulk Pack\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/100pcs-wh28a-3a-b504-red-rotary-potentiometer-bulk-pack\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"Default Title","offer_id":43692799197245,"sku":"\u003cnone\u003e","price":276.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/3439\/0333\/files\/S26aa207e8eb34f0e9ae635ac6272c4f6D.webp?v=1790179309","url":"https:\/\/qtiply.com\/products\/100-pcs-wh28a-3a-b504-500k%cf%89-red-rotary-potentiometer-bulk-pack","provider":"QTP","version":"1.0","type":"link"}