Brushed DC MotorTT Motor TDC coreless · Ø16 mm
TDC1625-1290
Ø16 mm, 12 V coreless motor (9,000 rpm no-load) for personal-care devices, toys and small pumps.
Manufacturer datasheet: TT Motor (Shenzhen) · TDC1625-1290 ↗ (checked 2026-10-17)Maker profile & contacts →
Figures are copied from the maker’s published datasheet; curves are calculated from them. Confirm with the manufacturer before ordering. Not stated on the datasheet, estimated from it: torque constant, resistance, inductance, rotor inertia, insulation class, IP rating.
How this motor is made
Full manufacturing overview: Coreless Brushed DC Motor (16–22 mm) →- 1. Coil winding
- 2. Coil forming & curing
- 3. Rotor assembly
- 4. Commutator connection
- 5. Rotor electrical test
- 6. Rotor balancing
- 7. Magnet bonding & magnetizing
- 8. Bearing press-fit
- 9. Brush end-cap assembly
- 10. Final assembly
- 11. Run-in & end-of-line test
Export certification: Low-voltage motor without electronics
- Rated power
- 1.12 W
- Rated torque
- 0.00147 N·m
- Rated speed
- 7,259 rpm
- Rated efficiency
- 51.6 %
Performance curves
Right axis:
SpeedEfficiency (right axis)
Calculated with the linear DC-motor model (constant 12 V supply, ignoring resistance rise with temperature).
Full specifications
General
- Motor type
- Brushed DC Motor
- Series
- TT Motor TDC coreless
- Frame / flange
- Ø16 mm
Rated Values
- Rated voltage
- 12 V
- Rated power
- 1.12 W
- Rated torque
- 0.00147 N·m
- Rated speed
- 7,259 rpm
- Rated current
- 0.18 A
Performance
- Stall torque
- 0.00759 N·m
- No-load speed
- 9,003 rpm
- Rated efficiency
- 51.6 %
- Peak efficiency
- 51.8 %
Electrical
- Torque constant Kt
- 0.0117 N·m/A
- Back-EMF constant Ke
- 1.23 V/krpm
- Resistance
- 17.1 Ω
- Inductance
- 0.3 mH
- No-load current
- 0.055 A
- Stall current
- 0.702 A
- Electrical time constant
- 0.0175 ms
- Mechanical time constant
- 12.4 ms
Mechanical
- Rotor inertia
- 1 g·cm²
- Body length
- 24.6 mm
- Shaft diameter
- 1.5 mm
- Weight
- 0.021 kg
- Power density
- 53.2 W/kg
- Protection
- IP40