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# Sanyo Pancake Stepper Motor: Bipolar, 200 Steps/Rev, 42×11.6mm, 3.5V, 1 A/Phase

**Type:** Product page · **SKU:** POLOLU-2298 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia)
**Page:** https://core-electronics.com.au/sanyo-pancake-stepper-motor-bipolar-200-steps-rev-42-11-6mm-3-5v-1-a-phase.html ([markdown](https://core-electronics.com.au/sanyo-pancake-stepper-motor-bipolar-200-steps-rev-42-11-6mm-3-5v-1-a-phase.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## How to buy

- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

| [![](https://a.pololu-files.com/picture/0J4301.250.jpg?8f2b96408619dcf0fe401679696b5d12)](https://a.pololu-files.com/picture/0J4301.1200.jpg?8f2b96408619dcf0fe401679696b5d12) |
|---|
| Bipolar stepper motor wires are terminated with bare leads. |

 | ![](https://a.pololu-files.com/picture/0J4307.250.jpg?1e5e28807c1e182c604790790ca92a88) |
|---|
| Sanyo bipolar stepper motor wiring diagram. |

This pancake bipolar stepping motor from Sanyo has a 1.8° step angle (200 steps/revolution). Each phase draws 1 A at 3.5 V, allowing for a holding torque of 850 g-cm (12 oz-in). The motor has four color-coded wires terminated with bare leads: red and yellow connect to one coil; orange and blue connect to the other. It can be controlled by a pair of suitable H-bridges (one for each coil), but Pololu recommend using a [bipolar stepper motor driver](https://core-electronics.com.au/breakout-boards-and-modules/motor-drivers-controllers/stepper-motor-drivers.html) or one of Pololu's [Tic Stepper Motor Controllers](https://core-electronics.com.au/breakout-boards-and-modules/motor-drivers-controllers/stepper-motor-drivers.html). In particular, the Tics make control easy because they support six different interfaces (USB, TTL serial, I²C, RC, analog voltages, and quadrature encoder) and are configurable over USB with Pololu's free configuration utility.

Pololu's [5 mm universal mounting hub](https://core-electronics.com.au/pololu-universal-aluminum-mounting-hub-for-5mm-shaft-4-40-holes-2-pack.html) can be used to mount objects on the stepper motor’s 5 mm-diameter output shaft, and Pololu's [NEMA 17 aluminum bracket](https://core-electronics.com.au/pololu-stamped-aluminum-l-bracket-for-nema-17-stepper-motors.html) offers a variety of options for mounting this stepper motor in your project.

This stepper motor is also available [with a high-resolution quadrature encoder](https://core-electronics.com.au/sanyo-pancake-stepper-motor-with-encoder-bipolar-200-steps-rev-42-24-5mm-3-5v-1-a-phase-4000-cpr.html).

**Specifications**

- Size: 42 mm square × 11.6 mm, not including the shaft (NEMA 17)
- Weight: 70 g (2.5 oz)
- Shaft diameter: 5 mm
- Steps per revolution: 200
- Current rating: 1 A per coil
- Voltage rating: 3.5 V
- Resistance: 3.5 O per coil
- Holding torque: 850 g-cm (12 oz-in)
- Inductance: 1.2 mH per coil
- Lead length: 30 cm (12")
- Output shaft supported by two ball bearings
 
More specifications can be found in the datasheet (385k pdf).

**Dimensions**

The following diagram shows the stepper motor dimensions in mm. The dimension labeled “L” is 11.6 mm. This stepper motor has a single output shaft with a length of 5 mm from the mounting face and a diameter of 5 mm. This shaft works with Pololu's [5 mm universal mounting hub](https://core-electronics.com.au/pololu-universal-aluminum-mounting-hub-for-5mm-shaft-4-40-holes-2-pack.html).

 | ![](https://a.pololu-files.com/picture/0J4298.700.jpg?044319c8444d64c247adaebd3dfc42bf) |
|---|

Pololu also carry a [stronger, taller version of this stepper motor](https://core-electronics.com.au/sanyo-pancake-stepper-motor-bipolar-200-steps-rev-42-18-6mm-5-4v-1-a-phase.html) where “L” in the above diagram is 18.6 mm and all other dimensions are the same.

 | [![](https://a.pololu-files.com/picture/0J4487.300.jpg?f31d1565d00f70762e5a976600ab129b)](https://a.pololu-files.com/picture/0J4487.1200.jpg?f31d1565d00f70762e5a976600ab129b) |
|---|
| Bottom view of the 42×11.6mm Sanyo pancake stepper motor. |

**Stepper Motor Applications**

Stepper motors are generally used in a variety of applications where precise position control is desirable and the cost or complexity of a feedback control system is unwarranted. Here are a few applications where stepper motors are often found:

- Printers
- CNC machines
- 3D printer/prototyping machines (e.g. RepRap)
- Laser cutters
- Pick and place machines
- Linear actuators
- Hard drives
 
 | ![](https://a.pololu-files.com/picture/0J4306.600.jpg?1b654e902c4b380ea21d7bbc77eb7937) |
|---|
| Sanyo stepper motors; from left to right: 14mm single shaft, 42×18.6mm, 50×11mm, 14mm double shaft |

**Note:** Sanyo Denki calls this product the “SANMOTION F2 STEPPING SYSTEMS TYPE SS2421-5041 (or SS2421-5041P)”.

**People often buy this product together with:**

 | [![Pololu Universal Aluminum Mounting Hub for 5mm Shaft, #4-40 Holes (2-Pack)](https://a.pololu-files.com/picture/0J2468.100.jpg?48f58383f75147660070803af59277ee)](https://core-electronics.com.au/pololu-universal-aluminum-mounting-hub-for-5mm-shaft-4-40-holes-2-pack.html) | [Pololu Universal Aluminum Mounting Hub for 5mm Shaft, #4-40 Holes (2-Pack)](https://core-electronics.com.au/pololu-universal-aluminum-mounting-hub-for-5mm-shaft-4-40-holes-2-pack.html) |
|---|---|

 | [![Stepper Motor: Bipolar, 200 Steps/Rev, 20×30mm, 3.9V, 0.6 A/Phase](https://a.pololu-files.com/picture/0J2280.100.jpg?82c52fb5c8727b3b7d16a0a6fd16dab6)](https://core-electronics.com.au/stepper-motor-bipolar-200-steps-rev-20-30mm-3-9v-0-6-a-phase.html) | [Stepper Motor: Bipolar, 200 Steps/Rev, 20×30mm, 3.9V, 0.6 A/Phase](https://core-electronics.com.au/stepper-motor-bipolar-200-steps-rev-20-30mm-3-9v-0-6-a-phase.html) |
|---|---|

 | [![Sanyo Pancake Stepper Motor: Bipolar, 200 Steps/Rev, 42×18.6mm, 5.4V, 1 A/Phase](https://a.pololu-files.com/picture/0J4302.100.jpg?c331e56c4c216ee04f9c1ffdd8fbaabf)](https://core-electronics.com.au/sanyo-pancake-stepper-motor-bipolar-200-steps-rev-42-18-6mm-5-4v-1-a-phase.html) | [Sanyo Pancake Stepper Motor: Bipolar, 200 Steps/Rev, 42×18.6mm, 5.4V, 1 A/Phase](https://core-electronics.com.au/sanyo-pancake-stepper-motor-bipolar-200-steps-rev-42-18-6mm-5-4v-1-a-phase.html) |
|---|---|

**Dimensions**

 | Size: | 42 mm square × 11.6 mm(NEMA 17)[1](https://core-electronics.com.au/#note1) |
|---|---|
| NEMA size: | 17 |
| Weight: | 70 g |
| Shaft diameter: | 5 mm |

**General specifications**

 | Current rating: | 1000 mA[2](https://core-electronics.com.au/#note2) |
|---|---|
| Voltage rating: | 3.5 V |
| Holding torque: | 11.8 oz·in |
| Steps per revolution: | 200 |
| Resistance: | 3.5 Ohm[2](https://core-electronics.com.au/#note2) |
| Inductance per phase: | 1.2 mH |
| Number of leads: | 4 |
| Lead length: | 30 cm |
| Encoders?: | N |

**Notes:**

1Not including the shaft.2Per coil. **File downloads**

- **Sanyo Sanmotion F2 42mm SS2421 and SS2422 stepping motor datasheet (385k pdf)**

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/s/a/sanyo_pancake_stepper_motor_bipolar_200_steps_rev_42x11.6mm_3.5v_1_a_phase__pololu_2298__00.jpg)
