C-1843##(Standard)
C-1843##(Standard)
Motor Specifications
| Item | Unit | Model | |
|---|---|---|---|
| C-184301 | C-184302 | ||
| Rated voltage | V | 12 | 24 |
| Rated output | W | 2.4 | 2.5 |
| Rated torque | mNm | 2.94 | 2.45 |
| gf-cm | 30 | 25 | |
| oz-in | 0.417 | 0.348 | |
| Rated Speed | rpm | 8000 | 9900 |
| Rated current | mA | 310 | 170 |
| No Load Speed | rpm | 10000 | 12300 |
| No Load current | mA | 65 | 45 |
| Starting torque | mNm | 14.70 | 12.74 |
| gf-cm | 150 | 130 | |
| oz-in | 2.085 | 1.807 | |
| Starting current | A | 1.3 | 0.7 |
| Rotor inertia | g-cm2 | 1.2 | 0.8 |
| Armature resistance | Ω | 9.2 | 34.3 |
| Inductance | mH | 0.22 | 0.58 |
| Mechanical time constant | m-sec | 8.5 | 8.0 |
| Back EMF constant | V/103rpm | 1.14 | 1.83 |
| Torque constant | mNm/A | 11.7 | 19.6 |
| gf-cm/A | 120 | 200 | |
| oz-in/A | 1.66 | 2.77 | |
| Maximum output | W | 3.8 | 4.0 |
| Initial angular acceleration | rad/sec2 | 123×103 | 160×103 |
| Thermal resistance (case-ambient) | ℃/W | 16 | 16 |
| Winding insulation class | – | F | |
| Maximum armature winding temperature rise | ℃ | 155 | |
| Operating ambient temperature | ℃ | -10 ~ +60 | |
| Number of commutator segments | – | 9 | |
| Bearing type | – | Ball bearings | |
| Brush materials | – | Silver/Carbon | |
| Weight | g | 52 | 52 |
| Length (L) | mm | 46 | 46 |
| 3DCAD | STEP. | ||
- Motor Specifications
- With Tachometer Generator
- With Optical Encoder
- With Cost-Effective Optical Encoder
- With ZJP Gearhead
With Tachometer Generator

| Item | Unit | Tachometer Generator’s Specification |
|---|---|---|
| Output voltage | V/1000rpm | 1.0±15% |
| Linearity | % max | 0.3 |
| Ripple P-P value (test circuit) | % max | 7 |
| Ripple frequency | Cycle/Rev | 7 |
| Directional error | % max | 0.5 |
| Armature resistance | Ω | 72.6 |
| Inductance | mH | 0.8 |
| Rotor inertia | g-cm2 | 0.4 |
| Output voltage of temperature coefficient | %/℃ | -0.04 |
| Weight (motor + tachometer generator) | g | 85 |
| Length (L) | mm | 70.5 |
With Optical Encoder
※Coreless DC Motors with Optical Encoders (EC-1843**) have finished production and receiving orders on March 3, 2020. Cost-Effective model (LEC-1843**) will continue and if the encoder with three channels is needed, please check ENC-1841.

- Motor Specifications
- With Tachometer Generator
- With Optical Encoder
- With Cost-Effective Optical Encoder
- With ZJP Gearhead
With Cost-Effective Optical Encoder

| Encoder type | Incremental Type | |
|---|---|---|
| Item | Unit | Encoder’s Specification |
| Encoder type | – | Incremental |
| Output pulse number | Pulse/Rev | 100、200 |
| Number of channels | – | 2 |
| Power source voltage | Vcc | 5±5% |
| Current Consumption | mA | 60 (max.) |
| Output voltage | V | “ H ” | 2.4 (min.) |
| mH | “ L” | 0.5 (max.) | |
| Response frequency | kHz | 35 (Note*1) |
| Rotor inertia | g-cm2 | 0.03 |
| Weight (motor + encoder) | g | 65 |
| Length | mm | 65.4 |
- Note*1: The motor speed is limited by the response frequency.
With ZJP Gearhead
※Coreless DC Motors with Optical Encoders (EC-1843**) have finished production and receiving orders on March 3, 2020. Cost-Effective model (LEC-1843**) will continue and if the encoder with three channels is needed, please check ENC-1841.

Rated Characteristic of Motor with Gear(s)
C-184301G ZJP 1/xxx (φ18)
| Reduction ratio | 4 | 6 | 16 | 24 | 36 | 64 | 96 | 144 | 216 | 256 | 384 | 576 | 864 | ※1296 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rated torque | N・m | 0.009 | 0.014 | 0.030 | 0.045 | 0.067 | 0.096 | 0.144 | 0.216 | 0.324 | 0.308 | 0.463 | 0.694 | 1.042 | 1.200 |
| Rated Speed | rpm | 2000 | 1333 | 500 | 333 | 222 | 125 | 83 | 55 | 37 | 31 | 20 | 13 | 9 | 6 |
| Rated output | w | 1.9 | 1.9 | 1.5 | 1.5 | 1.5 | 1.2 | 1.2 | 1.2 | 1.2 | 1.0 | 1.0 | 1.0 | 1.0 | 0.7 |
| Length (L) | mm | 19.4 | 19.4 | 22.9 | 22.9 | 22.9 | 28.2 | 28.2 | 28.2 | 28.2 | 33.5 | 33.5 | 33.5 | 33.5 | 33.5 |
C-184302G ZJP 1/xxx (φ18)
| Reduction ratio | 4 | 6 | 16 | 24 | 36 | 64 | 96 | 144 | 216 | 256 | 384 | 576 | 864 | ※1296 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rated torque | N・m | 0.007 | 0.011 | 0.025 | 0.037 | 0.056 | 0.080 | 0.120 | 0.180 | 0.270 | 0.257 | 0.386 | 0.579 | 0.868 | 1.200 |
| Rated Speed | rpm | 2475 | 1650 | 618 | 412 | 275 | 154 | 103 | 68 | 45 | 38 | 25 | 17 | 11 | 7 |
| Rated output | w | 2.0 | 2.0 | 1.6 | 1.6 | 1.6 | 1.2 | 1.2 | 1.2 | 1.2 | 1.0 | 1.0 | 1.0 | 1.0 | 0.9 |
| Length (L) | mm | 19.4 | 19.4 | 22.9 | 22.9 | 22.9 | 28.2 | 28.2 | 28.2 | 28.2 | 33.5 | 33.5 | 33.5 | 33.5 | 33.5 |
- Note*1 : If using Reduction ratio marked with an asterisk (*), please make sure not to exceed the allowable output torque of the gearhead.
- Note*2 Values assume continual operation under an evenly distributed load.


