Hybrid actuator 20

linearstepperlead screw

Overview
Double-stack hybrid stepper motor integrated linear actuator from the 20-Series with 28 mm body (Size 8). 1.8° step angle. Available in external, non-captive and captive configurations; bipolar wiring.

Motor Types

• External: 20E2028
• Non-Captive: 20N2028
• Captive: 20C2028
• Wiring: Bipolar

Electrical and mechanical parameters

• Rated voltages: 2.5 VDC, 5 VDC, 7.5 VDC
• Rated currents: 0.5 A (2.5 V), 0.24 A (5 V), 0.16 A (7.5 V)
• Resistance/phase: 5.1 Ω (2.5 V), 20.4 Ω (5 V), 45.9 Ω (7.5 V)
• Inductance/phase: 1.0 mH (2.5 V), 3.88 mH (5 V), 11.7 mH (7.5 V)
• Power input: 2.45 W (for 2.5 V variant)
• Temperature rise: 75 °C (measured)
• Insulation class: B-Class (F-Class optional)
• Weight: 43 g
• Insulation resistance: 50 MΩ

Common Lead Screws and Leads

• Φ3.5 mm — Lead 0.3048 mm (code AF) — Step length 0.001524 mm
• Φ3.5 mm — Lead 0.6096 mm (code AA) — Step length 0.003048 mm
• Φ3.5 mm — Lead 1.0000 mm (code AB) — Step length 0.005000 mm
• Φ3.5 mm — Lead 1.2192 mm (code B0) — Step length 0.006096 mm
• Φ3.5 mm — Lead 2.0000 mm (code G0) — Step length 0.010000 mm
• Φ3.5 mm — Lead 4.0000 mm (code M0) — Step length 0.020000 mm
• Φ3.5 mm — Lead 8.0000 mm (code T0) — Step length 0.040000 mm

Stroke and Dimensions

• Stroke 9 mm — Dimension A: 11.11 mm — Dimension B: 0.6 mm
• Stroke 12.7 mm — Dimension A: 14.81 mm — Dimension B: 4.3 mm
• Stroke 19.1 mm — Dimension A: 21.21 mm — Dimension B: 10.7 mm
• Stroke 25.4 mm — Dimension A: 27.51 mm — Dimension B: 17.0 mm
• Stroke 31.8 mm — Dimension A: 33.91 mm — Dimension B: 23.4 mm
• Stroke 38.1 mm — Dimension A: 40.21 mm — Dimension B: 29.7 mm
• Stroke 50.8 mm — Dimension A: 52.91 mm — Dimension B: 42.4 mm

Drawings and Curves
Motor outline dimension drawings available for External, Non-Captive and Captive versions.

Performance Curve
Provided curves: linear velocity vs. force and pulse frequency vs. force for Series 20 (28 mm body) with φ3.5 mm lead screw. Test conditions: constant-current chopper drive, zero acceleration, 2× microstepping, drive voltage 24 V.

Technical specifications

• Series: 20 Series
• Body size: 28 mm (Size 8)
• Step angle: 1.8°
• Motor variants: External (20E2028), Non-Captive (20N2028), Captive (20C2028)
• Wiring: Bipolar
• Rated voltages/currents/resistance/inductance: see electrical parameters above
• Power input, temperature rise, insulation and weight as listed above
• Available lead screw codes: AF, AA, AB, B0, G0, M0, T0 (leads 0.3048 mm to 8 mm)
• Available strokes and corresponding dimensions listed above