{"product_id":"kst-a08-servo","title":"KST A08 Coreless Servo Motor 7.4V (3.8–7.4V) Micro Servo for Robotics, Arms \u0026 Humanoids","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eKST A08 is a coreless \u003cstrong\u003eservo motor\u003c\/strong\u003e designed for compact, high-response motion control in robotics and RC-style PWM control systems. It uses an aluminum alloy housing and supports a DC operating voltage range of 3.8V to 7.4V.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCoreless DC motor\u003c\/li\u003e\n\u003cli\u003eAluminum alloy housing (CNC aluminum case)\u003c\/li\u003e\n\u003cli\u003eHardened steel (as stated for A08 Series)\u003c\/li\u003e\n\u003cli\u003eProgrammability (as stated for A08 Series)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%; border-collapse:collapse; min-width:720px;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003eDC 7.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003eDC 3.8V - 7.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e\u003cstrong\u003eStall Torque\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e1.40 kgf.cm @ 3.8V; 2.80 kgf.cm @ 7.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e\u003cstrong\u003eNo-Load Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e0.10 sec\/60deg @ 7.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e\u003cstrong\u003eOperating Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e1520 us \/ 333 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e\u003cstrong\u003eDefault Rotation Angle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e+\/-60 deg (120 deg Total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e\u003cstrong\u003eSignal Input Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\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 style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e\u003cstrong\u003ePulse Width Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e900 us - 2100 us\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e\u003cstrong\u003eMotor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003eCoreless DC Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e\u003cstrong\u003eHousing Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003eAluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e\u003cstrong\u003eA08 Series Torque (stated)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e3.2 kg.cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e\u003cstrong\u003eA08 Series Speed (stated)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px; border:1px solid #e5e5e5;\"\u003e0.09 sec\/60°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e1 x A08 V6.0 Micro Servo\u003c\/li\u003e\n\u003cli\u003e4 x Plastic Servo Horn\u003c\/li\u003e\n\u003cli\u003e4 x Mounting Screw\u003c\/li\u003e\n\u003cli\u003e1 x Servo Horn Screw\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAlso shown as the same pack list for A08H V6.0 Micro Servo and A08N V6.0 Micro Servo.\u003c\/p\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\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-A08-Drawing.pdf?v=1780406394\" rel=\"noopener\" target=\"_blank\"\u003eKST-A08-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-A08-DataSheet.pdf?v=1780406399\" rel=\"noopener\" target=\"_blank\"\u003eKST-A08-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=\"A08 Series KST A08 coreless servo motor lineup with torque and speed callouts and CNC aluminum case icons\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/KST-A08-Servo-Motor.jpg?v=1782706655\"\u003e\u003cp\u003eCompact A08 Series coreless micro servos pair a CNC aluminum housing with fast response for robotics and RC PWM control.\u003c\/p\u003e\n\u003cimg alt=\"KST A08 V6.0 micro coreless servo kit with retail box, four plastic horns, mounting screws, and horn screw\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/KST-A08-Servo-Motor_a1d33b56-6873-4a7e-a73e-488e92df453b.jpg?v=1782706664\"\u003e\u003cp\u003eEverything needed to install the servo is included: the A08 V6.0 micro servo, four plastic horns, and mounting hardware.\u003c\/p\u003e\n\u003cimg alt=\"KST A08H V6.0 micro servo package contents with box, four plastic servo horns, screws, and horn screw\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/KST-A08-Servo-Motor_d8a5b934-8d79-44d7-8e9f-b2a25d908836.jpg?v=1782706674\"\u003e\u003cp\u003eA08H V6.0 uses the same accessory pack—multiple horn styles plus mounting screws—for quick fitment in tight builds.\u003c\/p\u003e\n\u003cimg alt=\"KST A08N V6.0 micro servo kit with box, four red plastic horns, mounting screws, and horn screw\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/KST-A08-Servo-Motor_8cac3e71-30a5-45a4-a77a-763f0dc0d679.jpg?v=1782706684\"\u003e\u003cp\u003eA08N V6.0 ships with the servo, four horn options, and the screws required for mounting and securing the horn.\u003c\/p\u003e\n\u003cimg alt=\"KST A08 micro servo rotation angle graphic with horn installed, illustrating movement arc on a degree scale\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/KST-A08-Servo-Motor_dd894c54-300a-4b2c-a683-008440b530a9.jpg?v=1782706693\"\u003e\u003cp\u003eThe default travel is a 120° total sweep (±60°), ideal for compact linkages and precise joint control.\u003c\/p\u003e\n\u003cimg alt=\"KST A08H micro servo travel angle illustration with degree scale and horn position across the movement arc\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/KST-A08-Servo-Motor_9a203fa7-ca1f-4474-887d-225cbbd160b4.jpg?v=1782706704\"\u003e\u003cimg alt=\"KST A08N micro servo travel angle illustration with degree scale showing servo horn sweep range\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/KST-A08-Servo-Motor_67e71273-8600-45b9-9c5a-d012cb910d84.jpg?v=1782706714\"\u003e\n\u003c\/div\u003e","brand":"KST","offers":[{"title":"A08","offer_id":47931636842726,"sku":null,"price":58.99,"currency_code":"USD","in_stock":true},{"title":"A08H","offer_id":47931636875494,"sku":null,"price":58.99,"currency_code":"USD","in_stock":true},{"title":"A08N","offer_id":47931636908262,"sku":null,"price":58.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0954\/0326\/files\/KST-A08-Coreless-Servo-Motor-74V-3874V-Micro-Servo-for.jpg?v=1782706914","url":"https:\/\/robotdoo.com\/products\/kst-a08-servo","provider":"RobotDoo","version":"1.0","type":"link"}