DC motor A17B-39

brushed7.4 Vcoreless

Overview
The A17B series are φ17.4 mm coreless brushed DC motors designed for compact applications requiring high rotational speed and varied electrical options. The series comprises multiple submodels (for example A17B-43, A17B-42, A17B-33, A17B-28, A17B-19, etc.). Selected submodels (notably A17B-43) are used in consumer and medical devices such as electric‑fan masks. Outline drawings and CAD data are available for many items and can be downloaded from the product pages to support mechanical integration.

Product series table (selected A17B models)
Header: Model | Outer Diameter [mm] | Length [mm] | Applied Voltage [V] | Terminal resistance [Ω] | No Load Speed [r/m] | No Load Current [mA] | Startup Speed [r/m] | Startup Torque [mN·m] | Max Efficiency [%] | Output [W]
A17B-43 | 17.4 | 15.8 | 3.7 | 1.50 | 16,140 | 32 | 2,467 | 5.26 | 78.5 | 2.22
A17B-42 | 17.4 | 15.8 | 4.8 | 1.70 | 22,100 | 40 | 2,824 | 5.69 | 77.6 | 3.29
A17B-33 | 17.4 | 15.8 | 4.5 | 1.73 | 18,000 | 40 | 2,601 | 6.02 | 76.7 | 2.84
A17B-28 | 17.4 | 15.8 | 4.8 | 3.69 | 14,000 | 20 | 1,300 | 4.13 | 76.7 | 1.51
A17B-19 | 17.4 | 15.8 | 4.5 | 6.4 | 10,300 | 20 | 703 | 2.77 | 69.1 | 0.75
A17B-18 | 17.4 | 15.8 | 4.5 | 4.7 | 12,100 | 20 | 957 | 3.26 | 73.2 | 1.03
A17B-44 | 17.4 | 18.4 | 12.0 | 7.8 | 17,900 | 15 | 1,535 | 9.63 | 81.2 | 4.52
A17B-41 | 17.4 | 18.4 | 18.0 | 13.4 | 22,300 | 16 | 1,340 | 10.1 | 79.3 | 5.89
A17B-40 | 17.4 | 18.4 | 12.0 | 5.19 | 22,000 | 25 | 2,310 | 11.77 | 80.3 | 6.78
A17B-39 | 17.4 | 18.4 | 7.4 | 2.90 | 18,100 | 20 | 2,550 | 9.8 | 83.1 | 4.65
A17B-37 | 17.4 | 18.4 | 5.5 | 2.09 | 17,850 | 25 | 2,630 | 7.59 | 81.5 | 3.55
A17B-35 | 17.4 | 18.4 | 12.0 | 7.00 | 20,200 | 15 | 1,715 | 9.56 | 82.2 | 5.06
A17B-34 | 17.4 | 18.4 | 9.0 | 4.39 | 19,100 | 20 | 2,050 | 9.05 | 81.2 | 4.52
A17B-30 | 17.4 | 18.4 | 4.5 | 1.45 | 14,500 | 20 | 3,100 | 9.07 | 84.6 | 3.44
A17B-29 | 17.4 | 18.4 | 7.4 | 2.35 | 22,000 | 30 | 3,150 | 9.93 | 81.4 | 5.72
A17B-27 | 17.4 | 18.4 | 4.8 | 1.90 | 17,500 | 25 | 2,535 | 6.51 | 81.1 | 2.98
A17B-26 | 17.4 | 18.4 | 4.8 | 2.28 | 15,000 | 25 | 2,110 | 6.30 | 79.4 | 2.47
A17B-25 | 17.4 | 18.4 | 4.5 | 1.26 | 16,350 | 30 | 3,570 | 9.23 | 82.5 | 3.95
A17B-24 | 17.4 | 18.4 | 4.5 | 1.26 | 15,400 | 27 | 3,571 | 9.82 | 83.4 | 3.96
A17B-23 | 17.4 | 18.4 | 4.5 | 1.28 | 18,400 | 35 | 3,516 | 8.05 | 81.0 | 3.88
A17B-22 | 17.4 | 18.4 | 6.0 | 2.15 | 19,000 | 25 | 2,791 | 8.27 | 82.0 | 4.11
A17B-21 | 17.4 | 18.4 | 4.5 | 1.43 | 16,500 | 26 | 3,147 | 8.06 | 82.6 | 3.48
A17B-20 | 17.4 | 18.4 | 4.5 | 3.4 | 10,600 | 16 | 1,324 | 5.24 | 79.2 | 1.45
A17B-17 | 17.4 | 18.4 | 4.5 | 0.30 | 13,800 | 21 | 1,500 | 4.54 | 77.7 | 1.64
A17B-16 | 17.4 | 18.4 | 4.5 | 2.0 | 15,100 | 25 | 2,250 | 6.26 | 80.0 | 2.48
A17B-11 | 17.4 | 18.4 | 4.5 | 2.8 | 12,000 | 25 | 1,607 | 5.58 | 76.6 | 1.75
A17B-08 | 17.4 | 18.4 | 4.5 | 2.1 | 12,700 | 24 | 2,143 | 7.09 | 80.0 | 2.36
A17B-07 | 17.4 | 18.4 | 4.5 | 2.5 | 14,000 | 25 | 1,800 | 5.37 | 77.8 | 1.97

Customizable items (series)

• Lead pin
• Lead wire
• Grounding terminal

Notes
Many A17B entries include outline drawings and CAD data for mechanical integration; some submodels offer extended lengths and higher applied‑voltage variants. Performance columns in the table list no‑load speed and current, startup characteristics (startup speed and torque) and maximum efficiency/output per submodel.

Technical specifications

• Series name: A17B series
• Outer diameter: 17.4 mm (typical across series)
• Length: model-dependent (examples: 15.8 mm, 18.4 mm)
• Applied voltage: model-dependent (examples in table: 3.7 V, 4.5 V, 4.8 V, 12 V, 18 V)
• Terminal resistance: model-dependent (see table)
• No-load speed: specified per model (r/min)
• No-load current: specified per model (mA)
• Startup characteristics: startup speed (r/min) and startup torque (mN·m)
• Maximum efficiency and output: provided per model (%, W)
• Customizable options: lead pin, lead wire, grounding terminal
• Available resources: outline drawings and CAD data downloadable from product pages for many submodels