{"product_id":"mts-402-mts-403-4pdt-mini-toggle-switch-on-on-on-off-on-12-pin-6mm","title":"MTS-402 MTS-403 4PDT Mini Toggle Switch — ON-ON \u0026 ON-OFF-ON, 12-Pin, 6mm","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose between the ON-ON and ON-OFF-ON versions?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Choose ON-ON (MTS-402) when you need to switch between two circuits with no neutral position — common in guitar pickup selectors and relay control panels. Choose ON-OFF-ON (MTS-403) when you need a center-off position to fully disconnect the circuit, typically used in motor direction control or dual-power-source switching.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does 4PDT mean and how many circuits can this switch control?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"4PDT stands for 4-Pole Double-Throw. It means the switch controls 4 independent circuits simultaneously, each with 2 throw positions. With 12 pins total (4 rows × 3 pins), it can route 4 separate signal or power lines at once — ideal for complex audio routing or multi-channel control.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the bushing diameter and panel cutout size required?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The bushing diameter is 6mm. You will need to drill a 6mm (approximately 15\/64\\\" or 1\/4\\\") hole in your panel for mounting. Always verify with a caliper before drilling, as panel thickness can affect fit.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What are the typical voltage and current ratings for these toggle switches?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Mini toggle switches of this type are generally rated for DC 12V–30V at 1A–3A for low-voltage applications. They are not intended for mains AC voltage. Always verify the specific rating on the component datasheet before use in your circuit.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these switches suitable for outdoor or high-humidity environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These are standard unsealed mini toggle switches and are not rated for outdoor or high-humidity use. For outdoor or moisture-prone installations, a waterproof toggle switch with an IP65 or higher rating is recommended.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What wire gauge is compatible with the solder lugs on these switches?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The solder-lug terminals on mini toggle switches of this size are generally compatible with wire gauges from 22 AWG to 26 AWG. For higher-current applications, use the lower AWG (thicker wire) within that range.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these switches for guitar wiring or audio signal routing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. 4PDT mini toggle switches are widely used in guitar wiring for coil-splitting, phase reversal, and series\/parallel switching. The ON-ON type is most common for pickup switching, while ON-OFF-ON adds a bypass or mute position.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003c!-- ① OVERVIEW --\u003e\n  \u003ch2\u003eMTS-402 \u0026amp; MTS-403 4PDT Mini Toggle Switch — Reliable Circuit Control for DIY Electronics\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003cp\u003eWhen a project demands switching multiple signal paths at once — guitar mods, custom control panels, robotics, or bench test rigs — a standard SPDT or DPDT switch simply runs out of poles. The \u003cstrong\u003eMTS-402 \/ MTS-403 4PDT mini toggle switch\u003c\/strong\u003e solves that by giving you four independent poles in a compact 6mm bushing body, so you can reroute four separate circuits with a single lever throw.\u003c\/p\u003e\n    \u003cp\u003eEach switch ships as an individual unit with 12 solder-lug pins arranged in a 4×3 grid. The bushing diameter is \u003cstrong\u003e6mm (≈15\/64\")\u003c\/strong\u003e, fitting standard mini-toggle panel cutouts. The MTS-402 is wired \u003cstrong\u003eON-ON\u003c\/strong\u003e (two active positions, no center off), while the MTS-403 is wired \u003cstrong\u003eON-OFF-ON\u003c\/strong\u003e (center position fully disconnects all poles). Both types are available in 1-piece or 2-piece quantities.\u003c\/p\u003e\n    \u003cp\u003eTypical use cases include \u003cstrong\u003eguitar pickup coil-splitting and phase switching\u003c\/strong\u003e, \u003cstrong\u003emulti-channel audio signal routing\u003c\/strong\u003e in DIY pedalboards and amplifiers, \u003cstrong\u003eDC motor direction control\u003c\/strong\u003e in hobby robotics, and \u003cstrong\u003erelay bypass switching\u003c\/strong\u003e in custom electronics enclosures — anywhere a compact 4PDT mini toggle switch for electronics projects is needed.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ② COMPATIBILITY BAR --\u003e\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e🔌\u003c\/span\u003e\n    \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits standard 6mm panel cutouts. Pin spacing is compatible with typical 0.1\" (2.54mm) pitch perfboard and breadboard wiring. Confirm your panel thickness and hole diameter before installation.\n  \u003c\/div\u003e\n\n  \u003c!-- ③ KEY FEATURES --\u003e\n  \u003ch2\u003e✅ Key Features of These 4PDT Mini Toggle Switches\u003c\/h2\u003e\n  \u003cul class=\"hdiy-features\"\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔀\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eTrue 4PDT Switching\u003c\/strong\u003e — Controls 4 independent circuits simultaneously with a single lever, making it ideal for complex 4PDT mini toggle switch guitar wiring and multi-channel signal routing.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eCompact 6mm Bushing\u003c\/strong\u003e — The 6mm threaded bushing fits standard mini-toggle panel holes without modification, keeping your enclosure layout clean and tight.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eTwo Switching Configurations\u003c\/strong\u003e — MTS-402 (ON-ON) for continuous two-position switching; MTS-403 (ON-OFF-ON) for circuits that need a center-off disconnect position.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e12 Solder-Lug Terminals\u003c\/strong\u003e — All 12 pins are clearly arranged in a 4×3 layout, simplifying wiring for DIY electronics toggle switch projects and reducing the chance of miswiring.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎸\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eAudio-Grade Signal Path\u003c\/strong\u003e — The low-resistance contact design maintains signal integrity, making these switches a dependable choice for guitar coil-tap switching and passive audio routing.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛠️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003ePositive Lever Action\u003c\/strong\u003e — The lever snaps firmly between positions with tactile feedback, reducing accidental mid-position stops during operation.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- ④ TECHNICAL SPECIFICATIONS --\u003e\n  \u003ch2\u003e📐 Technical Specifications — 4PDT Mini Toggle Switch\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eModel Numbers\u003c\/th\u003e\n\u003ctd\u003eMTS-402 (ON-ON), MTS-403 (ON-OFF-ON)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSwitch Type\u003c\/th\u003e\n\u003ctd\u003e4PDT (4-Pole Double-Throw)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSwitching Configuration\u003c\/th\u003e\n\u003ctd\u003eON-ON \/ ON-OFF-ON (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eNumber of Pins\u003c\/th\u003e\n\u003ctd\u003e12 (4 rows × 3 pins)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBushing Diameter\u003c\/th\u003e\n\u003ctd\u003e6mm (≈15\/64\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTerminal Type\u003c\/th\u003e\n\u003ctd\u003eSolder lug\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eRated Voltage\u003c\/th\u003e\n\u003ctd\u003eTypically DC 12V–30V (see variant datasheet to confirm)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eRated Current\u003c\/th\u003e\n\u003ctd\u003eTypically 1A–3A DC (contact us to confirm for your application)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBody Size\u003c\/th\u003e\n\u003ctd\u003eMini (compact panel-mount form factor)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003ePanel mount, threaded bushing with nut\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSealing\u003c\/th\u003e\n\u003ctd\u003eUnsealed (indoor \/ dry environment use)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eQuantity Options\u003c\/th\u003e\n\u003ctd\u003e1 Pcs \/ 2 Pcs (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-note\"\u003e\n    \u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e\n    \u003cstrong\u003eNote:\u003c\/strong\u003e These are low-voltage DC switches. Do not use with mains AC voltage. Verify current and voltage ratings against your specific circuit requirements before installation.\n  \u003c\/div\u003e\n\n  \u003c!-- ⑤ FAQ --\u003e\n  \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-faq\"\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose between the ON-ON and ON-OFF-ON versions?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eChoose \u003cstrong\u003eON-ON (MTS-402)\u003c\/strong\u003e when you need to switch between two circuits with no neutral position — common in guitar pickup selectors and relay control panels. Choose \u003cstrong\u003eON-OFF-ON (MTS-403)\u003c\/strong\u003e when you need a center-off position to fully disconnect the circuit, typically used in motor direction control or dual-power-source switching.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat does 4PDT mean and how many circuits can this switch control?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003e4PDT stands for \u003cstrong\u003e4-Pole Double-Throw\u003c\/strong\u003e. It controls 4 independent circuits simultaneously, each with 2 throw positions. With 12 pins total (4 rows × 3 pins), it can route 4 separate signal or power lines at once — ideal for complex audio routing or multi-channel control.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat panel cutout size do I need for the 6mm bushing?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThe bushing diameter is \u003cstrong\u003e6mm\u003c\/strong\u003e. You will need to drill a 6mm (approximately \u003cstrong\u003e15\/64\" or 1\/4\"\u003c\/strong\u003e) hole in your panel. Always verify with a caliper before drilling, as panel thickness can affect fit and nut engagement depth.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat are the voltage and current ratings for these toggle switches?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eMini toggle switches of this type are generally rated for \u003cstrong\u003eDC 12V–30V at 1A–3A\u003c\/strong\u003e for low-voltage applications. They are not intended for mains AC voltage. Always verify the specific rating on the component datasheet before use in your circuit.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these switches suitable for outdoor or high-humidity environments?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThese are standard \u003cstrong\u003eunsealed\u003c\/strong\u003e mini toggle switches and are not rated for outdoor or high-humidity use. For outdoor or moisture-prone installations, a waterproof toggle switch with an \u003cstrong\u003eIP65 or higher\u003c\/strong\u003e rating is recommended.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat wire gauge works with the solder-lug terminals?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThe solder-lug terminals on mini toggle switches of this size are generally compatible with wire gauges from \u003cstrong\u003e22 AWG to 26 AWG\u003c\/strong\u003e. For higher-current applications, use the lower AWG (thicker wire) within that range to minimize resistance and heat buildup.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use these switches for guitar wiring or audio signal routing?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. 4PDT mini toggle switches are widely used in guitar wiring for \u003cstrong\u003ecoil-splitting, phase reversal, and series\/parallel switching\u003c\/strong\u003e. The ON-ON type is most common for pickup switching, while ON-OFF-ON adds a bypass or mute position. The low-resistance contacts help preserve signal integrity in passive circuits.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- ⑥ CTA BAR --\u003e\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your \u003cstrong\u003etype and quantity\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"ON-ON \/ 1Pcs","offer_id":52331274666258,"sku":"C3C09474x1","price":2.84,"currency_code":"USD","in_stock":true},{"title":"ON-ON \/ 2Pcs","offer_id":52331274699026,"sku":"C3C09474x2","price":4.15,"currency_code":"USD","in_stock":true},{"title":"On-Off-On \/ 1Pcs","offer_id":52331274731794,"sku":"C3C09475x1","price":3.06,"currency_code":"USD","in_stock":true},{"title":"On-Off-On \/ 2Pcs","offer_id":52331274764562,"sku":"C3C09475x2","price":4.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of5_8e79ab99-33f3-48de-8097-6604825c7dfe.jpg?v=1780897231","url":"https:\/\/homediyer.com\/products\/mts-402-mts-403-4pdt-mini-toggle-switch-on-on-on-off-on-12-pin-6mm","provider":"HomeDIYer","version":"1.0","type":"link"}