PM15S-020-SKH4

The PM15S-020-SKH4 is a tiny PM (permanent-magnet, can-stack) stepper motor with a body diameter of about 15 mm. Its 020 code means 20 full steps per revolution, an 18° step angle. Because it is so small, it fits inside handheld devices, models and tight mechanisms where a standard stepper motor would be far too large.

PM15S-020-SKH4 Specifications

• Motor type: 2-phase permanent-magnet (PM) stepper motor
• Body diameter: about 15 mm (from the PM15 code)
• Full steps per revolution: 20
• Step angle: 18° full step, 9° in half-step mode
• Variant code: SKH4

PM15S-020-SKH4 Applications

• Miniature positioning and focusing mechanisms
• Small models, animatronics and moving displays
• Compact valves and dosing mechanisms
• Teaching stepper basics with Arduino or ESP32

What's in the Box

• 1 × PM15S-020-SKH4 stepper motor

Tip: Do not drive the coils directly from microcontroller pins; use a small driver such as the DRV8833 for a 4-wire motor or a ULN2003 for a 5- or 6-wire motor. Keep the load light, as a motor this size has limited torque.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.