{"product_id":"kst-a12-s-servo","title":"KST A12-S Servo Motor (HV Digital Metal Servo) for Robotics Joints \u0026 RC Control, 13.5 kgf.cm 0.09s","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eKST A12-S is a servo motor (HV digital metal servo) designed for fast, precise actuation in robotics mechanisms and RC control surfaces. It uses a 7-phase coreless DC motor, hardened steel gears, and a contactless magnetic position sensor in an aluminum alloy case.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e7-phase coreless DC motor\u003c\/li\u003e\n\u003cli\u003eHardened steel gear set\u003c\/li\u003e\n\u003cli\u003eContactless (magnetic) position sensor\u003c\/li\u003e\n\u003cli\u003e2BB ball bearing support\u003c\/li\u003e\n\u003cli\u003eSoft start and programmable support: Yes \/ Yes\u003c\/li\u003e\n\u003cli\u003eCompact and light weight design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 7.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 6.0V - 8.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorque\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.10 N.m @ 6.0V; 1.28 N.m @ 7.4V; 1.35 N.m @ 8.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeed (60deg rotation)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.11 sec @ 6.0V; 0.09 sec @ 7.4V; 0.08 sec @ 8.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1520 us \/ 333 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDefault travel angle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/-60 deg = 120 deg Total\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignal voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHIGH: min. 3.3V, max. 5.0V; LOW: min. 0.0V, max. 1.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePulse lengths\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e900 us - 2100 us\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePulse lengths for position (-50 deg \/ 0 deg \/ +50 deg)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1000 us \/ 1500 us \/ 2000 us\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoft start \/ Programmable support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes \/ Yes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMotor type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7 Phases Coreless DC Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGear set material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHardened Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePosition sensor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eContactless (Magnetic Sensor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBall bearing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2BB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCase material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCase dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 mm x 12 mm x 35.5 mm +\/- 0.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 g +\/- 10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-10 deg C ~ +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePerformance callout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 kgf.cm; 0.09 sec\/60deg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e1 x A12-S HV Metal Servo\u003c\/li\u003e\n\u003cli\u003e2 x Plastic Servo Horn\u003c\/li\u003e\n\u003cli\u003e4 x Mounting Screw\u003c\/li\u003e\n\u003cli\u003e2 x Servo Horn Screw\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHumanoid robots\u003c\/li\u003e\n\u003cli\u003eRobotic arms\u003c\/li\u003e\n\u003cli\u003eExoskeletons\u003c\/li\u003e\n\u003cli\u003eQuadruped robots\u003c\/li\u003e\n\u003cli\u003eAGV vehicles\u003c\/li\u003e\n\u003cli\u003eARU robots\u003c\/li\u003e\n\u003cli\u003eLarge scale gliders\u003c\/li\u003e\n\u003cli\u003eOpen class GPS gliders\u003c\/li\u003e\n\u003cli\u003eLarge aerobatic gliders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eManuals\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/6848\/5000\/files\/KST-A12-S-Drawing.pdf?v=1780408724\" rel=\"noopener\" target=\"_blank\"\u003eKST-A12-S-Drawing.pdf\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/6848\/5000\/files\/KST-A12-S-DataSheet.pdf?v=1780408731\" rel=\"noopener\" target=\"_blank\"\u003eKST-A12-S-DataSheet.pdf\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"KST A12-S servo motor performance graphic highlighting 7‑phase coreless DC motor and compact alloy case\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/KST-A12-S-Servo-Motor.jpg?v=1782707534\"\u003e\u003cp\u003eBuilt around a 7‑phase coreless DC motor for fast, precise actuation in compact robotics and RC installations.\u003c\/p\u003e\n\u003cimg alt=\"A12-S HV metal servo with wiring harness, two red plastic servo horns, and mounting screws kit\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/KST-A12-S-Servo-Motor_125b7567-f7b1-4fc4-858e-abbfa9171f02.jpg?v=1782707545\"\u003e\u003cp\u003eEverything needed to install the servo comes in the box, including two plastic horns and mounting hardware.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KST","offers":[{"title":"A12-S","offer_id":47931613544678,"sku":"KST_A12_S_Ser_32781d-1","price":94.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0954\/0326\/files\/KST-A12-S-Servo-Motor-HV-Digital-Metal-Servo-for-Robotics.jpg?v=1782707691","url":"https:\/\/robotdoo.com\/products\/kst-a12-s-servo","provider":"RobotDoo","version":"1.0","type":"link"}