MITSUMI Stepping Motors M25SP-3, -4 Stepping Motors OUTLINE "M25SP-3", the standard, 25mm outer diameter model series, and "M25SP-4" type with 15˚ step angle. Excitation method and outside dimensions are all common. This configuration however allows you to select the holding, pull-out and pull-in torques suited to your equipment into which the motors will be integrated. FEATURES 1. Compact size and high output torque. 2. Superior running quietness and stability. 3. Step angle : 7.5˚ (M25SP-3), 15˚ (M25SP-4). 4. Excellent responsiveness acquired. USES Printers, multifunction machines, copy machines, FAX, and such. MITSUMI Stepping Motors SPECIFICATIONS Items Rated Voltage Working Voltage Rated Current/Phase No. of Phase Coil DC Resistance Step Angle Excitation Method Insulation Class Holding Torque Pull-out Torque Pull-in Torque Max. Pull-out Pulse Rate Max. Pull-in Pulse Rate M25SP-3 M25SP-4 DC 12V DC 12V DC 10.8~13.2V DC 10.8~13.2V 108mA 259mA 4 Phase 4 Phase 120Ω/phase±7% 50Ω/phase±7% 7.5˚/step 15˚/step 2-2 Phase excitation (Unipolar driving) Class E insulation Class E insulation 11.76mN·m 12.25mN·m 6.66mN·m/200pps 6.27mN·m/200pps 6.47mN·m/200pps 5.88mN·m/200pps 940pps 1,200pps 570pps 510pps CHARACTERISTICS M25SP-3 (120Ω, 12V DC) M25SP-4 (50Ω, 12V DC) 9.80 9.80 Torque (mN·m) 11.76 7.84 5.88 Pul l- o u Pu 3.92 in ll- Torque (mN·m) 11.76 To rq 1.96 t Torq ue ue 7.84 Pu 5.88 3.92 ll- i nT orq ue P ul l-ou t To rque 1.96 0 0 0 100 200 300 400 500 600 700 Pulse Rate (pps) 800 900 1000 1100 0 100 200 300 400 500 600 700 800 900 1000 1100 Pulse Rate (pps) DIMENSIONS Unit : mm, General tolerance : ±0.5