{"product_id":"tcst2103-optical-endstop-switch-10pcs-3d-printer","title":"10pcs TCST2103 Optical Endstop Limit Switch for 3D Printers","description":"\n\u003ch2\u003eTCST2103 Optical Endstop Switch – 10-Pack for 3D Printers\u003c\/h2\u003e\n\u003cp\u003eUpgrade your RepRap or other 3D printer build with this reliable 10-piece set of \u003cstrong\u003eTCST2103 Optical Endstop Switches\u003c\/strong\u003e. These optoelectronic limit switches provide precise, consistent position detection for all three axes of your printer, helping ensure accurate homing and smooth print results every time.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 10 pieces per pack — great value for builders and makers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e TCST2103 slotted optical switch (transmissive\/slot-type optoelectronic sensor)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e DIP (Dual Inline Package) — easy to solder onto PCBs or breadboards\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature Range:\u003c\/strong\u003e -40°C to +85°C — suitable for a wide range of environments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Ideal for RepRap 3D printers, CNC machines, robotics, and other position-sensing projects\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new components\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Concerned Chemicals:\u003c\/strong\u003e None\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat Is a TCST2103 Optical Endstop Switch?\u003c\/h3\u003e\n\u003cp\u003eThe TCST2103 is a slotted optical switch that uses an infrared LED emitter and a phototransistor detector housed in a single package. When an object (such as a flag or tab on a printer carriage) passes through the slot, it interrupts the infrared beam and triggers a signal — giving your controller board a precise, repeatable position reference. This makes them an excellent choice for endstop and homing functions on 3D printers and similar motion-control systems.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTCST2103\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIP\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSlotted Optoelectronic Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWho Is This For?\u003c\/h3\u003e\n\u003cp\u003eThese switches are perfect for:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY 3D printer builders (RepRap, Prusa, CoreXY, and more)\u003c\/li\u003e\n  \u003cli\u003eCNC router and laser cutter hobbyists\u003c\/li\u003e\n  \u003cli\u003eElectronics engineers and prototypers needing reliable position detection\u003c\/li\u003e\n  \u003cli\u003eRobotics and automation project builders\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What 3D printer types are TCST2103 optical endstop switches compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: The TCST2103 optical endstop switches are compatible with most RepRap-style 3D printers, including popular designs such as Prusa, Mendel, CoreXY, and delta-style printers. They are widely used wherever a precise, non-contact limit switch or homing sensor is needed on a motion-control axis.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How does the TCST2103 optoelectronic switch work?\u003c\/h4\u003e\n\u003cp\u003eA: The TCST2103 is a slotted (transmissive) optical sensor. It contains an infrared LED on one side of its slot and a phototransistor on the other. When nothing is in the slot, the infrared beam is detected and the output is in one state. When an object (like a small flag or tab attached to the printer carriage) enters the slot, the beam is blocked and the output changes — signalling the controller board that the axis has reached its home or limit position.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Do these come soldered to a PCB or as bare components?\u003c\/h4\u003e\n\u003cp\u003eA: These are supplied as bare DIP-package components (10 pieces), ready to be soldered onto your own PCB, stripboard, or endstop breakout board. They are not pre-assembled onto a ready-made endstop PCB, so some basic soldering is required for installation.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the operating temperature range of the TCST2103?\u003c\/h4\u003e\n\u003cp\u003eA: The TCST2103 optical switch operates reliably across a wide temperature range of -40°C to +85°C, making it suitable for indoor workshop environments as well as more demanding temperature conditions.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What 3D printer types are TCST2103 optical endstop switches compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The TCST2103 optical endstop switches are compatible with most RepRap-style 3D printers, including popular designs such as Prusa, Mendel, CoreXY, and delta-style printers. They are widely used wherever a precise, non-contact limit switch or homing sensor is needed on a motion-control axis.\"}}, {\"@type\": \"Question\", \"name\": \"How does the TCST2103 optoelectronic switch work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The TCST2103 is a slotted (transmissive) optical sensor. It contains an infrared LED on one side of its slot and a phototransistor on the other. When nothing is in the slot, the infrared beam is detected and the output is in one state. When an object (like a small flag or tab attached to the printer carriage) enters the slot, the beam is blocked and the output changes — signalling the controller board that the axis has reached its home or limit position.\"}}, {\"@type\": \"Question\", \"name\": \"Do these come soldered to a PCB or as bare components?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These are supplied as bare DIP-package components (10 pieces), ready to be soldered onto your own PCB, stripboard, or endstop breakout board. They are not pre-assembled onto a ready-made endstop PCB, so some basic soldering is required for installation.\"}}, {\"@type\": \"Question\", \"name\": \"What is the operating temperature range of the TCST2103?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The TCST2103 optical switch operates reliably across a wide temperature range of -40°C to +85°C, making it suitable for indoor workshop environments as well as more demanding temperature conditions.\"}}]}\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:\/\/0dwbi8-fa.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/0dwbi8-fa.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"10pcs TCST2103 Optical Endstop Limit Switch for 3D Printers\", \"item\": \"https:\/\/0dwbi8-fa.myshopify.com\/products\/tcst2103-optical-endstop-switch-10pcs-3d-printer\"}]}\u003c\/script\u003e","brand":"Quake","offers":[{"title":"Default Title","offer_id":50286603600099,"sku":"\u003cnone\u003e","price":13.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/9439\/1523\/files\/Sd469def6bcaa4d4c95356a2996c163d4d.webp?v=1790289941","url":"https:\/\/quakegoods.com\/products\/tcst2103-optical-endstop-switch-10pcs-3d-printer","provider":"Quake","version":"1.0","type":"link"}