Description
- Compact 20 mm diameter 22 mm length for small motion systems
- Operates at 6 V DC (10 %) with bipolar 2-phase 2-2 excitation and 18 step angle
- Delivers 50 gfcm holding torque and 15 gfcm pull-out torque (at 1000 Hz & 6 V)
- Low noise ( 50 dB) with maximum no-load speed up to 2100 rpm
- Ideal for security cameras and compact automation applications
The BY PM Stepper Motor 20BY25-034A is a 20 mm permanent-magnet stepper motor designed for compact and precise motion control applications such as security cameras, optical devices, and automation equipment.
Operating at 6 V DC (10 %), this motor features a bipolar 2-phase 2-2 excitation method and an 18 step angle, offering accurate positioning and smooth step-by-step movement.
It provides a holding torque of 50 gfcm and pull-out torque of 15 gfcm (at 1000 Hz & 6 V), ensuring stable performance under variable loads.
Built with precision windings and Class E insulation, the 20BY25-034A achieves low noise ( 50 dB), strong reliability, and long-term durability in miniature automation systems.
View moreWhat’s Included1 BY PM Stepper Motor 20BY25-034ADimensions
Diameter: 20 mm
Body Length: 22 mm
Height: 26.4 mm
Weight: 25 g
Specifications
Model Number: 20BY25-034A
Model Type: BY Permanent Magnet Stepper Motor
Drive Voltage: 6 10 % V DC
Rated Voltage: 6 V
Phase: 2
Exciting Method: 2-2
Exciting Mode: Bipolar
Step Angle: 18
Moment of Inertia: 0.06 gcm
Rotation Direction: CW / CCW
Resistance: 5 10 %
Inductance: 2.6 mH 20 %
Max Starting Pulse Rate: 500 Hz
Max Response Pulse Rate: 700 Hz
No-Load Speed: 1500 rpm (max 2100 rpm)
Holding Torque: 50 gfcm
Pull-Out Torque: 15 gfcm (at 1000 Hz & 6 V)
Detent Torque: 14 gfcm
Noise: 50 dB
Axial Endplay: 0.5 mm
Radial Endplay: 0.1 mm
Nickel Plating Thickness: 0.002 mm
Dielectric Strength: 500 V AC / 1 s 3 mA
Insulation Resistance: 100 M (500 V DC)
Insulation Class: E
Temperature Rise: 115 C
Operating Temperature: 10 C to +50 C
Storage Temperature: 30 C to +80 C
Operating Humidity (Non-Condensing): 20 90 % RH
Storage Humidity (Non-Condensing): 8 90 % RH
Testing Conditions: 20 C 2 C, 65 % 5 % RH
Basic Placement: Horizontal
Application Field: Security Camera
Unconditional Satisfaction Guarantee
