20BYGH 1.8° motor pelangkah gelung terbuka dua fasa

20BYGH 1.8° two-phase open-loop stepper motors from Shanghai Siheng Motor Manufacturing Co., Ltd., available in 6 models (20BYGH224-0204 to 20BYGH248-0604). Key specs include rated voltage 2.6-8.1V, rated current 0.2-0.6A, holding torque 0.1-0.48 kg·cm, weight 40-110g, and motor length 24-48mm; they adopt constant current drive and 2-phase excitation, with insulation voltage 500V and insulation resistance 100Ω.