Brushless motor C17B-24

BLDC

Overview
Brushless motor series C17B by C.I. TAKIRON. Series outer diameter: 17.4 mm. Typical applications include small electric fans and devices such as electric fan-equipped masks. Multiple sub-models available with different lengths, voltages and performance characteristics. Free downloads available for outlines and CAD data (product page indicates availability of external drawings and CAD data).

Product Series - Key model specifications (per model)
C17B-23
Outer Diameter [mm]: 17.4
Length [mm]: 13.0
Applied Voltage [V]: 4.8
Terminal resistance [Ω]: 6.0
No load rotation speed [r/m]: 11,700
No load current [mA]: 86
Startup current [mA]: 804
Startup torque [mN･m]: 2.51
Max efficiency [%]: 45.3
Max output [W]: 0.8

C17B-22
Outer Diameter [mm]: 17.4
Length [mm]: 13.0
Applied Voltage [V]: 4.8
Terminal resistance [Ω]: 1.0
No load rotation speed [r/m]: 25,000
No load current [mA]: 217
Startup current [mA]: 4,848
Startup torque [mN･m]: 8.11
Max efficiency [%]: 62.2
Max output [W]: 5.3

C17B-07
Outer Diameter [mm]: 17.4
Length [mm]: 13.0
Applied Voltage [V]: 4.8
Terminal resistance [Ω]: 1.8
No load rotation speed [r/m]: 17,000
No load current [mA]: 145
Startup current [mA]: 2,667
Startup torque [mN･m]: 6.43
Max efficiency [%]: 58.8
Max output [W]: 2.86

C17B-25
Outer Diameter [mm]: 17.4
Length [mm]: 15.6
Applied Voltage [V]: 6.8
Terminal resistance [Ω]: 7.9
No load rotation speed [r/m]: 11,100
No load current [mA]: 75
Startup current [mA]: 866
Startup torque [mN･m]: 4.23
Max efficiency [%]: 49.8
Max output [W]: 1.23

C17B-24
Outer Diameter [mm]: 17.4
Length [mm]: 15.6
Applied Voltage [V]: 6.8
Terminal resistance [Ω]: 2.0
No load rotation speed [r/m]: 17,100
No load current [mA]: 113
Startup current [mA]: 3,400
Startup torque [mN･m]: 12.1
Max efficiency [%]: 66.9
Max output [W]: 5.40

C17B-16
Outer Diameter [mm]: 17.4
Length [mm]: 15.6
Applied Voltage [V]: 7.4
Terminal resistance [Ω]: 2.3
No load rotation speed [r/m]: 27,200
No load current [mA]: 146
Startup current [mA]: 3,217
Startup torque [mN･m]: 7.62
Max efficiency [%]: 61.9
Max output [W]: 5.43

C17B-13
Outer Diameter [mm]: 17.4
Length [mm]: 15.6
Applied Voltage [V]: 7.4
Terminal resistance [Ω]: 1.8
No load rotation speed [r/m]: 24,250
No load current [mA]: 150
Startup current [mA]: 4,111
Startup torque [mN･m]: 11.12
Max efficiency [%]: 65.4
Max output [W]: 7.06

C17B-18
Outer Diameter [mm]: 17.4
Length [mm]: 15.6
Applied Voltage [V]: 6.8
Terminal resistance [Ω]: 1.2
No load rotation speed [r/m]: 27,200
No load current [mA]: 200
Startup current [mA]: 5,667
Startup torque [mN･m]: 12.59
Max efficiency [%]: 66.0
Max output [W]: 8.97

C17B-06
Outer Diameter [mm]: 17.4
Length [mm]: 15.6
Applied Voltage [V]: 6.0
Terminal resistance [Ω]: 2.1
No load rotation speed [r/m]: 19,250
No load current [mA]: 110
Startup current [mA]: 2,857
Startup torque [mN･m]: 7.86
Max efficiency [%]: 64.6
Max output [W]: 3.96

C17B-09
Outer Diameter [mm]: 17.4
Length [mm]: 15.6
Applied Voltage [V]: 6.0
Terminal resistance [Ω]: 2.8
No load rotation speed [r/m]: 18,250
No load current [mA]: 108
Startup current [mA]: 2,143
Startup torque [mN･m]: 6.07
Max efficiency [%]: 60.1
Max output [W]: 2.90

C17B-29
Outer Diameter [mm]: 17.4
Length [mm]: 17.9
Applied Voltage [V]: 12.0
Terminal resistance [Ω]: 8.8
No load rotation speed [r/m]: 12,800
No load current [mA]: 72
Startup current [mA]: 1,364
Startup torque [mN･m]: 10.95
Max efficiency [%]: 59.3
Max output [W]: 3.67

C17B-28
Outer Diameter [mm]: 17.4
Length [mm]: 17.9
Applied Voltage [V]: 12.0
Terminal resistance [Ω]: 1.55
No load rotation speed [r/m]: 31,000
No load current [mA]: 168
Startup current [mA]: 7,742
Startup torque [mN･m]: 27.39
Max efficiency [%]: 72.7
Max output [W]: 22.2

C17B-27
Outer Diameter [mm]: 17.4
Length [mm]: 17.9
Applied Voltage [V]: 7.4
Terminal resistance [Ω]: 7.82
No load rotation speed [r/m]: 12,300
No load current [mA]: 70
Startup current [mA]: 946
Startup torque [mN･m]: 4.66
Max efficiency [%]: 53.0
Max output [W]: 1.50

C17B-26
Outer Diameter [mm]: 17.4
Length [mm]: 17.9
Applied Voltage [V]: 7.4
Terminal resistance [Ω]: 1.26
No load rotation speed [r/m]: 31,800
No load current [mA]: 192
Startup current [mA]: 5,873
Startup torque [mN･m]: 12.21
Max efficiency [%]: 67.1
Max output [W]: 10.2

C17B-19
Outer Diameter [mm]: 17.4
Length [mm]: 17.9
Applied Voltage [V]: 24.0
Terminal resistance [Ω]: 2.4
No load rotation speed [r/m]: 45,450
No load current [mA]: 150
Startup current [mA]: 9,959
Startup torque [mN･m]: 48.72
Max efficiency [%]: 77.0
Max output [W]: 57.99

C17B-20
Outer Diameter [mm]: 17.4
Length [mm]: 17.9
Applied Voltage [V]: 12.0
Terminal resistance [Ω]: 1.0
No load rotation speed [r/m]: 36,000
No load current [mA]: 173
Startup current [mA]: 12,371
Startup torque [mN･m]: 38.29
Max efficiency [%]: 77.7
Max output [W]: 36.10

Notes on custom options

• Common customizable items across many C17B models: Gear head, Lead pin, Grounding terminal.
• Some models list additional options such as Ball bearing (e.g. certain variants), Grounding terminal specification, and other mechanical options.

Additional information
Product detail pages for each sub-model include gallery images and downloadable product specification tables (outline drawings and CAD offered).

Caractéristiques / spécifications techniques

• Series name: C17B
• Manufacturer / Brand: C.I. TAKIRON
• Outer diameter: 17.4 mm (all series models)
• Available lengths: examples 13.0 mm, 15.6 mm, 17.9 mm, 24 mm (varies by model)
• Applied voltages: examples shown include 4.8 V, 6.0 V, 6.8 V, 7.2–12 V, 24 V (varies by model)
• Key performance metrics per model: no-load speed (r/min), no-load current (mA), startup current (mA), startup torque (mN·m), max efficiency (%), max output (W)
• Typical applications: small fans, wearable fans, fan-equipped masks, other compact air-moving devices
• Available downloads referenced on page: outline drawings and CAD data for free download (product pages)