# PKP Series 42 mm 2-Phase Bipolar Stepper 0.66 N·m 2.3 A (PKP245D23A2)

![PKP Series 42 mm 2-Phase Bipolar Stepper 0.66 N·m 2.3 A (PKP245D23A2)](https://parts.trymaglev.com/img/mo-oriental-pkp245d23a2.webp)

Japanese-brand high-torque NEMA 17 stepper with published curves and 3D CAD; the industrial-grade alternative to commodity 42 mm motors.

- Maglev ID: mo-oriental-pkp245d23a2
- Brand: Oriental Motor
- MPN: PKP245D23A2
- Category: motors / Stepper & Integrated Stepper Motors
- Origin: JP (maker HQ, factory not confirmed)
- Maker: Oriental Motor (brand, JP)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 8501.10.40.40 (typical)
- MOQ: 1 · Lead time: unknown
- Confidence: VERIFIED

## Price
- 1+: $69 (list, 2026-10-29, https://catalog.orientalmotor.com/item/2-phase-bipolar-stepper-motors/42mm-pkp-series-2-phase-bipolar-stepper-motors/pkp245d23a2)

## Specifications
- Frame size: 42 mm (1.65 in.)
- Holding torque: 0.66 N·m (93 oz-in)
- Rated current: 2.3 A/phase
- Step angle: 1.8°
- Motor length: 47 mm (1.85 in.)
- Integrated driver: No
- Phase resistance: 1 Ω
- Phase inductance: 2.2 mH
- Rotor inertia: 73×10⁻⁷ kg·m²
- Shaft: single, round

## Links
- Product: https://catalog.orientalmotor.com/item/2-phase-bipolar-stepper-motors/42mm-pkp-series-2-phase-bipolar-stepper-motors/pkp245d23a2
- Datasheet: https://www.orientalmotor.com/products/pdfs/opmanuals/HM-7475-4E.pdf
- CAD: https://catalog.orientalmotor.com/item/2-phase-bipolar-stepper-motors/42mm-pkp-series-2-phase-bipolar-stepper-motors/pkp245d23a2

## Equivalents
- NEMA 17 Bipolar Stepper 0.59 N·m 2.0 A 48 mm (17HS19-2004S1) (mo-stepperonline-17hs19-2004s1)
- MS17HD NEMA 17 Bipolar Stepper 0.63 N·m 2.0 A 48.3 mm (MS17HD6P4200) (mo-moons-ms17hd6p4200)

## Sources
- https://catalog.orientalmotor.com/item/2-phase-bipolar-stepper-motors/42mm-pkp-series-2-phase-bipolar-stepper-motors/pkp245d23a2 (web price $69.00, torque, current, step angle, length, R, L, inertia, 3D CAD listed, operating manual link)
- https://catalog.orientalmotor.com/viewitems/2-phase-bipolar-stepper-motors/42mm-pkp-series-2-phase-bipolar-stepper-motors (series table confirming price/torque/length across PKP24x variants)