CBM-4020C-160-367-20

DC BLOWER 40 MM SQUARE 1 20 MM 6000 RPM

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
Manufacturer: SAME SKY
Product type: Blowers
SVHC: No SVHC (04-Feb-2026)
Delivery and price
Units per pack	200
Price	5.32 €
Current stock	10+
Lead time	30 days
Datasheet
CUI Devices is now Same Sky! Learn More 

**date** 09/12/2024 **page** 1 of 10 

Additional Resources:   Product Page    | ~~—~~ 3D Model 

## **SERIES:** CBM-40C | **DESCRIPTION:** DC BLOWER 

## **FEATURES** 

- omniCOOL™ bearing system 

- 40 x 40 mm frame 

- multiple speed options 

- PWM/tachometer wires available 

|**MODEL**|**voltage**|**input**<br>**voltage**|**input**<br>**current1**|**input**<br>**current1**||**input**<br>**power1**||**rated**<br>**speed1**|**airflow2**|**static**<br>**pressure3**|**noise4**|
|---|---|---|---|---|---|---|---|---|---|---|---|
||**rated**|**range**|**typ**|**max**|**typ**||**max**|**typ**|||**typ**|
||(Vdc)|(Vdc)|(A)|(A)|(W)||(W)|(RPM±15%)|(CFM)|(inch H2O)|(dBA)|
|CBM-4007C-035-218|5|4.5~5.5|0.04|0.06|0.20||0.30|3,5006|0.99|0.18|21.8|
|CBM-4007C-050-238|5|4.5~5.5|0.09|0.14|0.45||0.70|5,000|1.42|0.36|23.8|
|CBM-4007C-065-295|5|4.5~5.5|0.14|0.21|0.70||1.05|6,500|1.85|0.71|29.5|
|CBM-4007C-135-218|12|10.8~13.2|0.04|0.06|0.48||0.72|3,5006|0.99|0.18|21.8|
|CBM-4007C-150-238|12|10.8~13.2|0.06|0.09|0.72||1.08|5,000|1.42|0.36|23.8|
|CBM-4007C-165-295|12|10.8~13.2|0.09|0.14|1.08||1.68|6,500|1.85|0.71|29.5|
|CBM-4010C-140-178|12|10.8~13.2|0.05|0.08|0.06||0.96|4,0005|1.17|0.07|17.8|
|CBM-4010C-150-227|12|10.8~13.2|0.06|0.09|0.72||1.08|5,0005|1.46|0.11|22.8|
|CBM-4020C-130-216|12|10.8~13.2|0.02|0.04|0.24||0.48|3,0007|1.33|0.05|21.6|
|CBM-4020C-145-305|12|10.8~13.2|0.04|0.06|0.48||0.72|4,5007|1.99|0.11|30.5|
|CBM-4020C-160-367|12|10.8~13.2|0.08|0.12|0.96||1.44|6,0008|2.66|0.19|36.7|



- Notes: 1. At rated voltage, after 3 minutes. 

2. At rated voltage, room temperature, 65% humidity, 0 inch H **2** 0 static pressure. 

3. At rated voltage, 0 CFM airflow. 

4. Measured in an anechoic chamber as per ISO3745/GB4214-84 at rated voltage, with background noise 20±2 dBA at 1 m from the fan intake. 

5. Typical rated speed is measured as RPM±900 at rated voltage. 

6. Typical rated speed is measured as RPM±700 at rated voltage. 

7. Typical rated speed is measured as RPM±600 at rated voltage. 

8. Typical rated speed is measured as RPM±10% at rated voltage. 

9. All specifications are measured at 25°C, 65% relative humidity unless otherwise specified. 

## **PART NUMBER KEY** 

## **- - - - - CBM 4010C 140 178 XX CXX** 

Base Number 

Fan Signals Reserved for Custom “blank” = no signals Configurations 20 = tachometer signal 22 = tachometer signal / PWM control signal 

**sameskydevices.com** 

Additional Resources:   Product Page    |    3D Model 

**SAME SKY** | **SERIES:** CBM-40C | **DESCRIPTION:** DC BLOWER 

**date** 09/12/2024 | **page** 2 of 10 

## **INPUT** 

|**INPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|operating input voltage|5 Vdc input models<br>12 Vdc input models|4.5<br>10.8|5<br>12|5.5<br>13.2|Vdc<br>Vdc|
||5 Vdc input models||3.5||Vdc|
|starting voltage|12 Vdc input models, CBM-4007C and CBM-4020C models||7||Vdc|
||12 Vdc input models, CBM-4010C models||8||Vdc|
|**PERFORMANCE10**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|rated speed|at rated voltage, 25°C, after 3 minutes|3,500||6,500|RPM|
|air fow|at 0 inch H2O, see performance curves|0.99||2.66|CFM|
|static pressure|at 0 CFM, see performance curves|0.07||0.71|inch H2O|
|noise|at 1 m, rated speed|17.8||36.7|dBA|
|Note:<br>10. See Model section on page 1 for specifc values.||||||



## **PROTECTIONS / FEATURES[11]** 

|**PROTECTIONS /**|**FEATURES11**||||
|---|---|---|---|---|
|**parameter**|**conditions/description**<br>**min**|**typ**|**max**|**units**|
|auto restart|not available on models CBM-4010C-140-178,<br>CBM-4010C-150-227, & CBM-4010C-160-267||||
|polarity protection|only available on models CBM-4010C-140-178, CBM-4010C-150-227, & CBM4010C-160-267,<br>CBM-4020C-130-216, CBM-4020C-145-305, CBM-4020C-160-367||||
|tachometer signal|available on “20” and “22” models||||
|PWM control signal|available on “22” models||||



Notes: 11. See Application Notes for details. 

## **SAFETY & COMPLIANCE** 

|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|---|---|---|---|---|---|
|insulation resistance|at 500 Vdc between frame and positive terminal|10|||MΩ|
|dielectric strength|at 500 Vac, 60 Hz, 1 minute between housing and positive<br>terminal|||5|mA|
|safety approvals|UL/cUL 507, TUV (EN/IEC 62368-1:2020+A11)|||||
|EMI/EMC|EN 55032:2015, EN 55035:2017|||||
|life expectancy|at 40°C, 65% RH, 90% confdence level||40,000||hours|
|RoHS|yes|||||
|**ENVIRONMENTAL**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|operating temperature||-10||70|°C|
|storage temperature||-40||75|°C|
|operating humidity|non-condensing|35||85|%|
|storage humidity|non-condensing|35||85|%|



**sameskydevices.com** 

Additional Resources:   Product Page    |    3D Model 

**SAME SKY** | **SERIES:** CBM-40C | **DESCRIPTION:** DC BLOWER 

**date** 09/12/2024 | **page** 3 of 10 

## **PERFORMANCE CURVES** 

## **CBM-4007C-035-218** 

## **CBM-4007C-050-238** 

**==> picture [457 x 100] intentionally omitted <==**

**----- Start of picture text -----**<br>
36<br>2<br>12<br>0 i)<br>) 02 0.4 06 0.8 1 12 i) 05<br>Air Flow (CFM) Air Flow (CFM)<br> O)2  O)2<br>Static Pressure (mm H Static Pressure (mm H<br>**----- End of picture text -----**<br>


## **CBM-4007C-065-295** 

## **CBM-4007C-135-218** 

**==> picture [584 x 102] intentionally omitted <==**

**----- Start of picture text -----**<br>
15 4<br>10 .<br>2<br>51<br>00<br>0 0.5 1 i 2 0 02 0.4 0.6 0.8 1 12<br>Air Flow (CFM) Air Flow (CFM)<br> O)2  O)2<br>Static Pressure (mm H Static Pressure (mm H<br>**----- End of picture text -----**<br>


## **CBM-4007C-150-238** 

## **CBM-4007C-165-295** 

**==> picture [172 x 101] intentionally omitted <==**

**----- Start of picture text -----**<br>
i"<br>6<br>4<br>a<br>i)<br>i) 05<br>Air Flow (CFM)<br> O)2<br>Static Pressure (mm H<br>**----- End of picture text -----**<br>


**==> picture [173 x 100] intentionally omitted <==**

**----- Start of picture text -----**<br>
15<br>10<br>5<br>0<br>0 0.5 1<br>Air Flow (CFM)<br> O)2<br>Static Pressure (mm H<br>**----- End of picture text -----**<br>


**sameskydevices.com** 

Additional Resources:   Product Page    |    3D Model 

**SAME SKY** | **SERIES:** CBM-40C | **DESCRIPTION:** DC BLOWER 

**date** 09/12/2024 | **page** 4 of 10 

## **PERFORMANCE CURVES (CONTINUED)** 

## **CBM-4010C-140-178** 

**==> picture [178 x 126] intentionally omitted <==**

**----- Start of picture text -----**<br>
2<br>1.8<br>16<br>1.4<br>1.2<br>1<br>0.8<br>0.6<br>04<br>0.2<br>0<br>0 02 04 0.6 0.8<br>Air Flow (CFM)<br> O)2<br>Static Pressure (mm H<br>**----- End of picture text -----**<br>


## **CBM-4010C-160-267** 

**==> picture [180 x 116] intentionally omitted <==**

**----- Start of picture text -----**<br>
4<br>3.5<br>3<br>2.5<br>A<br>1.5<br>1<br>05<br>0<br>0 05 1<br>Air Flow (CFM)<br> O)2<br>Static Pressure (mm H<br>**----- End of picture text -----**<br>


## **CBM-4020C-145-305** 

**==> picture [184 x 137] intentionally omitted <==**

**----- Start of picture text -----**<br>
2.5<br>2<br>15<br>1<br>0.5<br>05 1 is<br>Air Flow (CFM)<br> O)2<br>Static Pressure (mm H<br>**----- End of picture text -----**<br>


## **CBM-4010C-150-227** 

**==> picture [175 x 113] intentionally omitted <==**

**----- Start of picture text -----**<br>
2.5<br>2<br>.<br>-<br>1<br>05<br>0<br>0 0.2 04 0.6 0.8<br>Air Flow (CFM)<br> O)2<br>Static Pressure (mm H<br>**----- End of picture text -----**<br>


## **CBM-4020C-130-216** 

**==> picture [182 x 138] intentionally omitted <==**

**----- Start of picture text -----**<br>
:<br>1.2<br>1<br>;<br>ax<br>0.6<br>0.4<br>0.2<br>0<br>0 02 04 0.6 0.8<br>Air Flow (CFM)<br> O)2<br>Static Pressure (mm H<br>**----- End of picture text -----**<br>


## **CBM-4020C-160-367** 

**==> picture [187 x 142] intentionally omitted <==**

**----- Start of picture text -----**<br>
5<br>4<br>3<br>2<br>1<br>0 0.5 1 1s.<br>Air Flow (CFM)<br> O)2<br>Static Pressure (mm H<br>**----- End of picture text -----**<br>


**sameskydevices.com** 

Additional Resources:   Product Page    |    3D Model 

**SAME SKY** | **SERIES:** CBM-40C | **DESCRIPTION:** DC BLOWER 

**date** 09/12/2024 | **page** 5 of 10 

## **MECHANICAL** 

|**MECHANICAL**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|motor|4 pole DC brushless|||||
|bearing system|omniCOOL™|||||
|direction of rotation|counter-clockwise viewed from front of fan blade|||||
||CBM-4007C models: 40 x 40 x 7||||mm|
|dimensions|CBM-4010C models: 39.5 x 39.5 x 10||||mm|
||CBM-4020C models: 40.5 x 40.5 x 19.5||||mm|
|material|PBT (UL94V-0)|||||
||CBM-4007C models, weight values by model|9.92||11.1|g|
|weight|CBM-4010C models||11.8||g|
||CBM-4020C models||24||g|



## **MECHANICAL DRAWING** 

units: mm 

2 wire versions (+Vin & -Vin): UL 1061, 28 AWG 

3 wire versions (+Vin, -Vin, & tach): UL 1061, 28 AWG 

4 wire versions (+Vin, -Vin, tach, & PWM): UL 1061, 28 AWG 

|||||
|---|---|---|---|
|MOUNTING SCREW (Pan Head)||||
|Screw Type|Size|Standard|Torque|
|Machine Screw|M2|JIS B1111-1974|1~2 kgf-cm|



## **CBM-4007C** 

|**CBM-4007C**|**CBM-4007C**|
|---|---|
|WIRE CONNECTIONS||
|Wire Color<br>Function||
|Red|+Vin|
|Black|-Vin|
|Yellow12|Tach Signal|
|Blue12|PWM|



**==> picture [456 x 234] intentionally omitted <==**

Notes:    12. Wires only present on versions with output signals. 

**sameskydevices.com** 

Additional Resources:   Product Page    |    3D Model 

**SAME SKY** | **SERIES:** CBM-40C | **DESCRIPTION:** DC BLOWER 

**date** 09/12/2024 | **page** 6 of 10 

## **MECHANICAL DRAWING (CONTINUED)** 

units: mm 

2 wire versions (+Vin & -Vin): UL 1061, 26 AWG 3 wire versions (+Vin, -Vin, & tach): UL 1061, 26 AWG 

4 wire versions (+Vin, -Vin, tach, & PWM): UL 1061, 26 AWG 

|MOUNTING SCREW (Pan Head)|MOUNTING SCREW (Pan Head)|MOUNTING SCREW (Pan Head)|MOUNTING SCREW (Pan Head)|
|---|---|---|---|
|Screw Type|Size|Standard|Torque|
|Machine Screw|M2|JIS B1111-1974|<br>1~2 kgf-cm|



## **CBM-4010C** 

|**CBM-4010C**|**CBM-4010C**|
|---|---|
|WIRE CONNECTIONS||
|Wire Color<br>Function||
|Red|+Vin|
|Black|-Vin|
|Yellow12|Tach Signal|
|Blue12|PWM|



**==> picture [419 x 185] intentionally omitted <==**

Notes:    12. Wires only present on versions with output signals. 

**sameskydevices.com** 

Additional Resources:   Product Page    |    3D Model 

**SAME SKY** | **SERIES:** CBM-40C | **DESCRIPTION:** DC BLOWER 

**date** 09/12/2024 | **page** 7 of 10 

## **MECHANICAL DRAWING (CONTINUED)** 

units: mm 

2 wire versions (+Vin & -Vin): UL 1061, 26 AWG 

3 wire versions (+Vin, -Vin, & tach): UL 1061, 26 AWG 

4 wire versions (+Vin, -Vin, tach, & PWM): UL 1061, 28 AWG 

|||||
|---|---|---|---|
|MOUNTING SCREW (Pan Head)||||
|Screw Type|Size|Standard|Torque|
|Machine Screw|M3|JIS B1111-1974|7.5 kgf-cm|
|Self-tapping Screw|M4<br>|JIS B1122 Type 2|7.5 kgf-cm|



## **CBM-4020C** 

|**CBM-4020C**|**CBM-4020C**|
|---|---|
|||
|WIRE CONNECTIONS||
|Wire Color|Function|
|Red|+Vin|
|Black|-Vin|
|Yellow12|Tach Signal|



**==> picture [456 x 256] intentionally omitted <==**

Notes:    12. Wires only present on versions with output signals. 

**sameskydevices.com** 

Additional Resources:   Product Page    |    3D Model 

**SAME SKY** | **SERIES:** CBM-40C | **DESCRIPTION:** DC BLOWER 

**date** 09/12/2024 | **page** 8 of 10 

## **APPLICATION NOTES** 

## **Auto Restart Protection** 

When the fan motor is locked by an external force, the device will temporarily turn off electrical power to the motor and restart automatically when the locked rotor condition is released. 

## **Polarity Protection** 

Able to withstand 10 minutes of reverse polarity connection between the positive and negative wires without causing damage. 

## **Tachometer Signal (Yellow Wire)** 

The tachometer signal is for detecting the rotational speed of the fan motor.  The output will be a square wave when fan is operating and VFG or VCE depending on the locked rotor position when fan motor is locked (See Figures 1~2 below). 

**Figure 1: Tachometer Output Circuit** 

**Output Type: Open Collector** Vs: (VFG) 5 V fan: 3.3~5 V All others: 3.3~15 V Ic ≤ 5 mA R ≥ Vs/Ic VCE(sat) ≤ 0.5 V 

**Figure 2: Tachometer Output Waveform** 

**4 Pole Motor** N=RPM T=60/N (sec) FG=1/T*2 (Hz) N=FG*30 

**sameskydevices.com** 

Additional Resources:   Product Page    |    3D Model 

**SAME SKY** | **SERIES:** CBM-40C | **DESCRIPTION:** DC BLOWER 

**date** 09/12/2024 | **page** 9 of 10 

## **APPLICATION NOTES (CONTINUED)** 

## **PWM Signal (Blue Wire)** 

This wire is for speed control of the fan motor using a PWM input signal from the customer circuit (See Figure 3 below). 

## **Figure 3: PWM Input Signal** 

|**Figure 3: PWM Input Signal**||
|---|---|
|**Figure 3: PWM Input Signal**|Model<br>PWM Frequency<br>Range (kHz)<br>PWM VIH<br>(V)<br>PWM VIL<br>(V)<br>CBM-4007C-035-218-22<br>5~50<br>2.7~5.5<br>0~0.7<br>~~rr~~<br>~~eee ee~~<br>~~ee~~|
||CBM-4007C-050-238-22<br>5~50<br>2.7~5.5<br>0~0.7<br>~~a~~|
||CBM-4007C-065-295-22<br>5~50<br>2.7~5.5<br>0~0.7<br>~~a~~|
||CBM-4007C-135-218-22<br>0.6~55<br>2.3~10<br>0~0.7|
|tL||
|tL|CBM-4007C-150-238-22<br>0.2~50<br>2.5~10<br>0~0.8|
||CBM-4007C-165-295-22<br>20~50<br>2.8~10<br>0~0.7|
|CBM-4010C-140-178-22<br>20~50<br>2.8~10<br>0~0.7<br>CBM-4010C-150-227-22<br>20~50<br>2.8~10<br>0~0.7<br>PWM Duty Cycle (%) = T1/T x 100%<br>~~—~~<br>~~a~~<br>~~a~~||
||CBM-4020C-130-216-22<br>20~50<br>2.8~10<br>0~0.7<br>~~a~~|
||CBM-4020C-145-305-22<br>20~50<br>2.8~10<br>0~0.7<br>~~ee~~|
||CBM-4020C-160-367-22<br>20~50<br>2.8~10<br>0~0.7<br>~~ee~~|



PWM Duty Cycle (%) = T1/T x 100% 

**sameskydevices.com** 

Additional Resources:   Product Page    |    3D Model 

**SAME SKY** | **SERIES:** CBM-40C | **DESCRIPTION:** DC BLOWER 

**date** 09/12/2024 | **page** 10 of 10 

## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|05/13/2021|
|1.01|added PWM signal versions|05/19/2022|
|1.02|logo, datasheet style update|08/12/2022|
|1.03|added new models|05/05/2023|
|1.04|added new models|11/14/2023|
|1.05|updated PWM details|03/06/2024|
|1.06|CUI Devices rebranded to Same Sky|09/12/2024|



The revision history provided is for informational purposes only and is believed to be accurate. 

Same Sky offers a one (1) year limited warranty.  Complete warranty information is listed on our website. 

Same Sky reserves the right to make changes to the product at any time without notice.  Information provided by Same Sky is believed to be accurate and reliable.  However, no responsibility is assumed by Same Sky for its use, nor for any infringements of patents or other rights of third parties which may result from its use. 

Same Sky products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability.  A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 

**sameskydevices.com**
Updated at April 23, 2026
About Novapart

Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.
Learn more →
Stock Shortage Specialist

When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →
Compliant Alternatives

We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →