FASTECH
Product Profile_ 25PM Step motor
1. Parameters
  Ø25mm motor
Winding Type Bi-polar
Motor Method Captive, Non-Captive, External Type
Step Angle 15°
Voltage 5V 12V 5V 12V
Current per phase 380mA 160mA 380mA 160mA
Resistance per phase 12.5Ω 70Ω 12.5Ω 70Ω
Inductance per phase 10.5mH 60mH 8.1mH 50mH
Power 3.8W
Rotator Inertia 1.05gcm²
Insulation class B Class
Insulation resistance 20MΩ
Weight 48g
2. Step Length Type
  • Please contact FASTECH or your local FASTECH representative about custom products.
Step Angle Step Length Lead Code
mm inch
7.5° 0.00625 0.00025 AF
0.0127 0.0005 AA
0.0254 0.001 B
0.0417 0.0016 G
0.0833 0.0033 M
0.1667 0.0066 T
15° 0.0125 0.0005 AF
0.0254 0.001 AA
0.0508 0.002 B
0.0833 0.0033 G
0.1667 0.0066 M
0.3333 0.0131 T
Motor Dimension and Examples
1. Captive Linear actuator
Min. Stroke Front Cover A Retraction B Stretch C D (MAX) Stroke Code
14 12.89 ±0.25 19.99 ±0.64 33.76 ±0.38 28 1
18 17.28 ±0.25 25.25 ±0.64 43.76 ±0.38 33 2
25 24.26 ±0.25 32.23 ±0.64 57.76 ±0.38 40 3
31 30.25 ±0.25 38.23 ±0.64 69.76 ±0.38 46 4
2. Non-Captive Linear actuator
3. External Linear Actuators
Stepper Motor Linear Actuators
25PM Bi-polar motor(5V / 7.5°) Thrust and Linear Velocity Curve, 24VDC Constant-current Drive
25PM Bi-polar motor(5V / 15°) Thrust and Linear Velocity Curve, 24VDC Constant-current Drive
25PM Bi-polar motor(12V / 7.5°) Thrust and Linear Velocity Curve, 24VDC Constant-current Drive
25PM Bi-polar motor(12V / 15°) Thrust and Linear Velocity Curve, 24VDC Constant-current Drive