Size: 302:01:00 Compact, lownoise 2phase stepper motor with integrated gearbox for precise slowspeed positioning and improved torque. Designed for 5.0V DC systems where space, quiet operation, and reliable repeatability are required. Key benefits Precise micropositioning: 18 degrees per step provides predictable, repeatable motion for indexing and positioning tasks. Increased output torque and slower output speed: available reduction ratios from 41:1 up to 1030:1 let you trade speed for torque without adding a larger motor. Low noise, long life operation: gearbox and electronic starter are optimized to reduce noise and improve service life, lowering maintenance and downtime. Easy integration: standard 2phase 4wire interface and 5.0V supply make the unit compatible with common stepper drivers and control systems. Main specifications Size: 302:01:00 Electrical supply: DC 5.0V Resistance: 40 ohm plus or minus 7 percent per winding Step angle: 18 per step Phasing: 2phase, 4wire Electronic starter speed: 2400 RPM Maximum starting frequency: 600 PPS minimum at 5.0V DC Maximum slewing frequency: 800 PPS minimum at 5.0V DC Pullin torque: 4 gf.cm minimum at 700 PPS and 5.0V DC Pullout torque: 5 gf.cm minimum at 700 PPS and 5.0V DC Reduction ratios available: 41:1, 118:1, 236:1, 302:1, 603:1, 1030:1 Performance and compatibility notes Operates from a 5.0V DC supply and pairs with standard stepper motor drivers that support 2phase 4wire motors. Designed to hold torque under low speed and stall conditions thanks to the gearbox ratios, while allowing higher electronic starter rpm for quick initial movement. Electrical winding resistance tolerance of plus or minus 7 percent supports predictable current draw and thermal behavior. Typical applications Small robotic joints and articulated mechanisms where compact size and quiet operation are important. Precision positioning for optical assemblies, camera focus or small motion stages needing coarsetofine speed and torque control via gearbox selection. Lowspeed indexing in automation equipment, miniature conveyors, and instrumentation where repeatable step motion and reduced noise are required. What makes this unit stand out Multiple reduction ratio options let you match torque and speed to your application without replacing the motor. Clear, standard electrical and mechanical specifications simplify selection and system design. Balanced performance between starter speed, holding torque, and lownoise gearbox makes it suitable for both motion control prototypes and longer term installations. Ordering and selection tips Choose the reduction ratio that provides the required output torque and target speed for your load. Verify driver capability for the specified maximum starting and slewing frequencies at 5.0V DC. Confirm torque requirements at the operating pulse rate; pullin and pullout torque are specified at 700 PPS and 5.0V DC. This motor delivers controlled step movement, scalable torque through gearbox options, and quiet, reliable operation for compact motion systems.