OverviewSingle-Stack Stepper Motor.
28-Series hybrid stepper linear actuator with 1.8° step angle; compact 33 mm body (Size 11 / 32 mm designation). Designed for integration with lead-screw drive systems.
Motor Types- External — 28E2033
- Non-Captive — 28N2033
- Captive — 28C2033
- Wiring — Bipolar
Electrical and Mechanical Parameters- Rated Voltage: 2.1VDC | 5VDC | 12VDC
- Rated Current: 1A | 0.42A | 0.18A
- Resistance/Phase: 2.1Ω | 11.9Ω | 45.9Ω
- Inductance/Phase: 1.55mH | 8.5mH | 50.3mH
- Power Input: 4.2W | 4.2W | 4.2W
- Temperature Rise: 75℃ | 75℃ | 75℃
- Insulation Class: B-Class (F-Class optional)
- Weight: 120 g
- Insulation Resistance: 50 MΩ
Common Lead Screws and Leads- Φ4.76 mm — Lead 0.635 mm (Code A0) — Step Length 0.003175 mm
- Φ4.76 mm — Lead 1.27 mm (Code D0) — Step Length 0.00635 mm
- Φ4.76 mm — Lead 2.54 mm (Code AB) — Step Length 0.0127 mm
- Φ4.76 mm — Lead 5.08 mm (Code G0) — Step Length 0.0254 mm
- Φ4.76 mm — Lead 10.16 mm (Code M0) — Step Length 0.0508 mm
Motor Outline / Stroke Dimensions- Stroke 12.7 mm — Dimension A 20.47 mm | Dimension B 1.68 mm
- Stroke 19.1 mm — Dimension A 26.87 mm | Dimension B 8.03 mm
- Stroke 25.4 mm — Dimension A 33.17 mm | Dimension B 14.38 mm
- Stroke 31.8 mm — Dimension A 39.57 mm | Dimension B 20.73 mm
- Stroke 38.1 mm — Dimension A 45.87 mm | Dimension B 27.08 mm
- Stroke 50.8 mm — Dimension A 58.57 mm | Dimension B 39.78 mm
- Stroke 63.5 mm — Dimension A 71.27 mm | Dimension B 52.48 mm
PerformanceSeries 28 (33 mm body, bipolar) pulse frequency vs. force curve tested with φ4.76 mm lead screw. Test conditions: constant-current chopper drive, zero acceleration, 2× microstepping, drive voltage 24 V.
NotesSingle-stack stepper configuration. External, non-captive and captive mechanical variants available.