{"product_id":"0-25g-micro-electromagnetic-servo-4mm-6mm-coreless-motor-diy-model-airplane","title":"0.25g Micro Electromagnetic Servo for 4mm 6mm Coreless Motor DIY","description":"\n\u003ch2\u003e0.25g Micro Electromagnetic Servo – Precision Magnetic Steering for Indoor Model Aircraft\u003c\/h2\u003e\n\u003cp\u003eTake your DIY indoor model airplane builds to the next level with this ultra-lightweight \u003cstrong\u003e0.25g micro electromagnetic servo\u003c\/strong\u003e. Designed specifically for miniature RC aircraft using \u003cstrong\u003e4mm and 6mm coreless motors\u003c\/strong\u003e, this tiny magnetic steering servo delivers impressive responsiveness in a compact 1.2 × 1.2 cm frame — perfect for weight-sensitive micro builds.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Lightweight:\u003c\/strong\u003e Only 0.25g — ideal for micro and nano indoor model planes where every gram matters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectromagnetic Design:\u003c\/strong\u003e Permanent magnet, brush-commutated gear motor for smooth, precise directional control\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Size:\u003c\/strong\u003e 1.2 × 1.2 cm (0.47 × 0.47 in) — fits the tightest model aircraft fuselages\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Motors:\u003c\/strong\u003e Works with 4mm and 6mm coreless motors commonly used in DIY indoor flyers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e High-quality plastic and metal materials for a sturdy, long-lasting servo\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Meets CE compliance standards\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable in 1, 2, or 3-piece packs\u003c\/strong\u003e — stock up for multiple builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.25g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.2 × 1.2 cm \/ 0.47 × 0.47 in\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic + Metal\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGear Motor (Electromagnetic Servo)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommutation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrush\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePermanent Magnet\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;18.65W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Motors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4mm \/ 6mm Coreless Motors\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 \/ 2 \/ 3 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1, 2, or 3 × Micro Electromagnetic Servo (as selected)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/0-25mm-1000-turn-precision-copper-inductor-coil-diy-electronics\"\u003e0.25mm 1000-Turn Precision Copper Inductor Coil for DIY Circuits\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-channel-relay-module-dc-3-3v-24v-optocoupler-arduino\"\u003e1-Channel Relay Module DC 3.3V–24V Optocoupler for Arduino\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSafety \u0026amp; Standards\u003c\/h3\u003e\n\u003cp\u003eFor guidance on safe practices with small electronic components and hobby electronics, visit the U.S. Consumer Product Safety Commission (CPSC).\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Photos are for illustration purposes only and may not reflect actual size or exact colour. Please refer to the listed dimensions. Due to manual measurement, minor size variances of 5–10mm may occur. Screen colour representation may vary slightly from the actual product.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Servomechanism\" target=\"_blank\" rel=\"noopener\"\u003eServomechanism\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What model aircraft are compatible with this 0.25g micro electromagnetic servo?\u003c\/h4\u003e\n\u003cp\u003eA: This micro servo is designed for DIY indoor model airplanes using 4mm or 6mm coreless motors — including nano and micro-class foam flyers, paper planes, and other ultra-lightweight RC builds where minimal weight is critical for flight performance.\u003c\/p\u003e\n\u003ch4\u003eQ: How does an electromagnetic servo differ from a traditional servo for RC models?\u003c\/h4\u003e\n\u003cp\u003eA: An electromagnetic (magnetic steering) servo uses a permanent magnet and brush-commutated gear motor to achieve directional control, making it far lighter and more compact than conventional servo designs. This makes it ideal for micro-scale aircraft where standard servos would be too heavy.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use this servo with motors other than 4mm and 6mm coreless motors?\u003c\/h4\u003e\n\u003cp\u003eA: This servo is optimised for 4mm and 6mm coreless motors. Compatibility with other motor sizes may vary — always verify motor diameter and electrical requirements before integrating into your build.\u003c\/p\u003e\n\u003ch4\u003eQ: How many servos come in a pack?\u003c\/h4\u003e\n\u003cp\u003eA: You can choose between a 1-piece, 2-piece, or 3-piece pack, making it convenient to buy exactly what you need for your current or upcoming DIY model projects.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What model aircraft are compatible with this 0.25g micro electromagnetic servo?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This micro servo is designed for DIY indoor model airplanes using 4mm or 6mm coreless motors — including nano and micro-class foam flyers, paper planes, and other ultra-lightweight RC builds where minimal weight is critical for flight performance.\"}}, {\"@type\": \"Question\", \"name\": \"How does an electromagnetic servo differ from a traditional servo for RC models?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"An electromagnetic (magnetic steering) servo uses a permanent magnet and brush-commutated gear motor to achieve directional control, making it far lighter and more compact than conventional servo designs. 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