{"product_id":"chihai-chs-15by-miniature-stepper-motor-5v","title":"CHIHAI CHS-15BY Miniature Stepper Motor, 5V, 1mm \/ 1.5mm Shaft","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe \u003ca class=\"tophitek-context-link\" href=\"https:\/\/rcdrone.top\/collections\/chihai-motor\/\" style=\"font-weight:600;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:0.15em;\"\u003eCHIHAI MOTOR\u003c\/a\u003e CHS-15BY is a miniature two-phase, four-wire permanent-magnet \u003ca class=\"tophitek-context-link\" href=\"https:\/\/rcdrone.top\/collections\/stepper-motors\/\" style=\"font-weight:600;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:0.15em;\"\u003estepper motor\u003c\/a\u003e for compact controlled motion. Select A with a 1.5 mm shaft and 10ohm winding, or B with a 1 mm shaft and nominal 30ohm winding. These are direct motor shafts without a reduction gearbox or encoder.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompact round motor body with copper winding and small round output shaft.\u003c\/li\u003e\n\u003cli\u003eTwo-phase step control and reversible motion through an external driver.\u003c\/li\u003e\n\u003cli\u003eFour-wire lead and matching miniature connector.\u003c\/li\u003e\n\u003cli\u003eSeparate A\/B winding and mounting specifications for correct integration.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications - Version A\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply \/ winding\u003c\/td\u003e\n\u003ctd\u003e5 V DC; two phases; 10Ω ±10% phase resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExcitation \/ direction\u003c\/td\u003e\n\u003ctd\u003eTwo-phase-on(2-2); CCW reference, phase-sequence dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation\u003c\/td\u003e\n\u003ctd\u003eClassF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency references\u003c\/td\u003e\n\u003ctd\u003eMaximum pull-out frequency at least 1500Hz; maximum pull-in frequency at least 100Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePull-out torque\u003c\/td\u003e\n\u003ctd\u003eAt least 12gf.cm at 1000Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody \/ shaft\u003c\/td\u003e\n\u003ctd\u003e15±0.1 mm body; 11 mm MAX body length; 1.5 mm shaft +0\/-0.01 mm; 6.6±0.3 mm projection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront drawing\u003c\/td\u003e\n\u003ctd\u003e9.4±0.1 mm feature; two M 1.6x 0.35 tapped holes; 45degree reference; 4 mm front feature+0\/-0.05 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther drawing features\u003c\/td\u003e\n\u003ctd\u003e0.5 mm front section, 0.6 mm rear feature and 5 mm rear circle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHarness\u003c\/td\u003e\n\u003ctd\u003e150±10 mm, 30AWG 1571, four-pin 1.25 mm connector, UV adhesive fixation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eSpecifications - Version B\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply \/ drive\u003c\/td\u003e\n\u003ctd\u003e5 V DC with L 6219 driver; 160 mA per phase; bipolar, two-phase excitation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResistance \/ input step\u003c\/td\u003e\n\u003ctd\u003e31Ω ±7% per phase at 20°C; nominal 30ohm option; 18degrees per step\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePull-out torque\u003c\/td\u003e\n\u003ctd\u003eMore than 8gf.cm at 500PPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency references\u003c\/td\u003e\n\u003ctd\u003eMaximum response more than 1000PPS; maximum starting more than 700PPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation \/ environment\u003c\/td\u003e\n\u003ctd\u003eClassF; 100VAC one second; 100MΩ at 500VDC; operating reference-20 to+85°C, avoid condensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody \/ shaft\u003c\/td\u003e\n\u003ctd\u003e15 mm body; 10.8 mm body reference; 1 mm shaft +0\/-0.01 mm; 5.3±0.3 mm projection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront mounting\u003c\/td\u003e\n\u003ctd\u003eTwo M 1.4 holes on 9.4±0.1 mm spacing; 13.4 mm reference circle; 36degree reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther drawing features\u003c\/td\u003e\n\u003ctd\u003e7.5 mm REF, 6.86 mm, 4 mm boss+0\/-0.05 mm, 7 mm section, 1 mm and 0.5 mm references, 6.4 mm rear feature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHarness\u003c\/td\u003e\n\u003ctd\u003e165±10 mm, UL 1571AWG 30; white 51021-0400\/equivalent 1.25 mm single-row four-pin housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet mass\u003c\/td\u003e\n\u003ctd\u003eApproximately 10 g reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003ePull-in\/start frequency and pull-out\/response frequency describe different operating limits. Torque values apply at the stated pulse rates and do not establish continuous load capability for every speed.\u003c\/p\u003e\u003ch2\u003eVersion-Specific Wiring\u003c\/h2\u003e\u003ch3\u003eA: 1.5 mm shaft, 10ohm\u003c\/h3\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eWire\u003c\/th\u003e\n\u003cth\u003ePhase\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYellow\u003c\/td\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003ctd\u003eA-bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003ctd\u003eB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003ctd\u003eB-bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eCoilA uses yellow\/black; coilB uses red\/white. The A drawing shows connector order red, white, yellow, black; verify the marked viewing orientation before connecting.\u003c\/p\u003e\u003ch3\u003eB: 1 mm shaft, nominal 30ohm\u003c\/h3\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eWire\u003c\/th\u003e\n\u003cth\u003ePhase\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrown\u003c\/td\u003e\n\u003ctd\u003eA-bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003ctd\u003eB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003ctd\u003eB-bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eCoilA uses black\/brown; coilB uses red\/white. The B connector table numbers brown 1, black 2, white 3, red 4. Color-to-phase function and connector pin position are separate references; use the actual marked connector orientation.\u003c\/p\u003e\u003cp\u003eFor two-phase-on drive, the phase sequence is A+B, A-bar+B, A-bar+B-bar, A+B-bar. Reverse the sequence to reverse direction. Rotation is referenced from the mounting\/output-shaft side. Use a compatible bipolar stepper driver; do not power a coil directly as if it were a brushed DC motor. Disconnect power before changing wiring.\u003c\/p\u003e\u003ch2\u003eB-Winding Family Drive Reference\u003c\/h2\u003e\u003cp\u003eThe following nominal 30ohm family guidance is separate from the B motor rating of 5 V\/160 mA per phase. It is not a drive table for the A 10ohm winding. Apply current limiting and thermal checks appropriate to the selected driver and motor.\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDrive supply\u003c\/th\u003e\n\u003cth\u003eRecommended frequency PPS\/Hz\u003c\/th\u003e\n\u003cth\u003eRecommended drive current\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e12 V\u003c\/td\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003ctd\u003e≤0.25 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7.4 V\u003c\/td\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003ctd\u003e≤0.15 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 V\u003c\/td\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003ctd\u003e≤0.10 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 V\u003c\/td\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003ctd\u003e≤0.08 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.7 V\u003c\/td\u003e\n\u003ctd\u003e700\u003c\/td\u003e\n\u003ctd\u003e≤0.07 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eDrive voltage must account for back EMF plus winding-current resistance drop. Long operation may require reduced current or external cooling if heating becomes excessive.\u003c\/p\u003e\u003ch2\u003eMechanical Fit and General Tolerances\u003c\/h2\u003e\u003cp\u003eChoose the correct A\/B shaft diameter, projection, mounting thread, hole spacing and cable envelope. Neither version has a D-flat shaft in this listing. The B drawing provides these general linear-tolerance classes in millimeters; explicit feature tolerances take precedence. No single tolerance class is assigned to every feature.\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDimension Lmm\u003c\/th\u003e\n\u003cth\u003eClassA\u003c\/th\u003e\n\u003cth\u003eClassB\u003c\/th\u003e\n\u003cth\u003eClassC\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eL≤3\u003c\/td\u003e\n\u003ctd\u003e±0.02\u003c\/td\u003e\n\u003ctd\u003e±0.03\u003c\/td\u003e\n\u003ctd\u003e±0.05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u0026lt;L≤6\u003c\/td\u003e\n\u003ctd\u003e±0.05\u003c\/td\u003e\n\u003ctd\u003e±0.05\u003c\/td\u003e\n\u003ctd\u003e±0.08\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6\u0026lt;L≤16\u003c\/td\u003e\n\u003ctd\u003e±0.07\u003c\/td\u003e\n\u003ctd\u003e±0.08\u003c\/td\u003e\n\u003ctd\u003e±0.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16\u0026lt;L≤30\u003c\/td\u003e\n\u003ctd\u003e±0.10\u003c\/td\u003e\n\u003ctd\u003e±0.10\u003c\/td\u003e\n\u003ctd\u003e±0.12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30\u0026lt;L≤120\u003c\/td\u003e\n\u003ctd\u003e±0.10\u003c\/td\u003e\n\u003ctd\u003e±0.15\u003c\/td\u003e\n\u003ctd\u003e±0.18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e120\u0026lt;L≤300\u003c\/td\u003e\n\u003ctd\u003e±0.15\u003c\/td\u003e\n\u003ctd\u003e±0.20\u003c\/td\u003e\n\u003ctd\u003e±0.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e300\u0026lt;L≤500\u003c\/td\u003e\n\u003ctd\u003e±0.20\u003c\/td\u003e\n\u003ctd\u003e±0.30\u003c\/td\u003e\n\u003ctd\u003e±0.40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003eUnspecified angular-tolerance reference:±0.1degree. Keep mounting screws clear of internal parts and provide shaft\/load support as required by the mechanism.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eMiniature robot mechanisms, small manipulators, smart-home motion controls, compact pan\/tilt experiments and other low-load positioning projects where the selected shaft, winding, step rate and driver fit the application. A complete robotic hand, gimbal or mechanism is not included.\u003c\/p\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cp\u003eOne selected A or B CHS-15BY stepper motor with its pictured four-wire lead and connector. A motor driver, power supply, controller, encoder, gearbox, coupling and mounting bracket are not included.\u003c\/p\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eAre A and B electrically interchangeable?\u003c\/h3\u003e\u003cp\u003eNo. Shaft size, winding resistance, mounting details and one phase-wire color differ. Use the selected version's table.\u003c\/p\u003e\u003ch3\u003eDoes this include a reduction gearbox?\u003c\/h3\u003e\u003cp\u003eNo. Both options are direct-shaft motors.\u003c\/p\u003e\u003ch3\u003eCan the 30ohm drive guidance be used for A?\u003c\/h3\u003e\u003cp\u003eNo. It is scoped to the B nominal 30ohm winding family, not the A 10ohm motor.\u003c\/p\u003e\u003ch2\u003eVisual Details\u003c\/h2\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-109-A-dimensions.webp?v=1792747179\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"A motor -1.5mm shaft \/10ohm\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-109-A-dimensions.webp?v=1792747179\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eA motor -1.5mm shaft \/10ohm\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-109-B-dimensions.webp?v=1792747185\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"B motor -1mm shaft \/nominal30ohm\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-109-B-dimensions.webp?v=1792747185\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eB motor -1mm shaft \/nominal30ohm\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-109-wiring.webp?v=1792747190\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Version-specific winding colors\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-109-wiring.webp?v=1792747190\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eVersion-specific winding colors\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-109-drive.webp?v=1792747195\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"B nominal30ohm family drive guidance\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-109-drive.webp?v=1792747195\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eB nominal30ohm family drive guidance\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cfigure\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-109-tolerances.webp?v=1792747199\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"B drawing - general linear tolerances\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/local68-109-tolerances.webp?v=1792747199\" style=\"max-width:100%;height:auto\"\u003e\u003c\/a\u003e\u003cfigcaption\u003eB drawing - general linear tolerances\u003c\/figcaption\u003e\u003c\/figure\u003e","brand":"CHIHAI MOTOR","offers":[{"title":"A - 1.5mm Shaft \/ 10 Ohm","offer_id":68111510405344,"sku":"CHS15BY-68109-001","price":13.0,"currency_code":"USD","in_stock":true},{"title":"B - 1mm Shaft \/ 30 Ohm","offer_id":68111510438112,"sku":"CHS15BY-68109-002","price":13.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/local68-109-v1.jpg?v=1792747204","url":"https:\/\/rcdrone.top\/pt\/products\/chihai-chs-15by-miniature-stepper-motor-5v","provider":"RCDrone","version":"1.0","type":"link"}