1604KL-04W-B39 - 40x40x10mm 4010 DC12V 0.09A 3-Pin DC Brushless Axial Cooling Fan

This compact DC brushless axial cooling fan measures 40mm × 40mm × 10mm and operates from a 12V DC power source. Its ultra-slim 10mm frame is designed for electronics and industrial equipment where installation depth is limited.

The fan has three wires terminating in a 3-pin connector. The third wire provides a monitoring signal for compatible equipment. Connector shape, pin order, cable length, and monitoring-signal requirements must be compared with the original fan before installation.

Technical Specifications

Product Type: DC brushless axial cooling fan
Brand: Unbranded
Model Number: 1604KL-04W-B39
Frame Dimensions: 40mm × 40mm
Frame Thickness: 10mm
Common Size Designation: 4010
Rated Voltage: 12V DC
Rated Current: 0.09A
Approximate Input Power: 1.08W
Reference Fan Speed: Approximately 4500 RPM
Maximum Airflow: Approximately 4.2 CFM
Maximum Airflow Metric: Approximately 0.12m³/min
Maximum Static Pressure: Approximately 0.096 in H₂O / 24Pa
Reference Noise Level: Approximately 22dBA
Bearing Type: Ball bearing
Connection: Three wires with 3-pin connector
Monitoring: Third-wire monitoring signal
Frame Style: Square axial frame
Frame Material: Black plastic
Blade Material: Black plastic
Operating Voltage Range: Approximately 10.2–13.8V DC
Operating Temperature Range: Approximately -10°C to 70°C
Approximate Weight: 15g
Airflow Direction: From the open intake side toward the support-strut and label side
Primary Application: Compact electronic, industrial, automation, power-supply, controller, and equipment cooling

Functionally Interchangeable / Replacement Part Numbers

1604KL-04W-B39

✅ Confirmed Compatibility

Compatibility is based on the original fan specifications and installation requirements rather than an equipment name alone.

✔️ Voltage Compatibility: Equipment designed for a 12V DC cooling fan
✔️ Current Compatibility: Fan circuits capable of supporting a 0.09A load
✔️ Physical Compatibility: Installations requiring a 40mm × 40mm × 10mm square axial fan
✔️ Connector Compatibility: Equipment using the same three-pin connector housing and pin arrangement
✔️ Signal Compatibility: Systems requiring the same third-wire speed-monitoring or status signal
✔️ Mounting Compatibility: Equipment with matching mounting-hole locations, screw clearance, airflow direction, and 10mm installation depth
✔️ Common Applications: Servo drives, motor controllers, automation equipment, CNC electronics, compact power supplies, network equipment, embedded computers, control cabinets, communication devices, printers, and other heat-sensitive electronic assemblies
✔️ Replacement Applications: Equipment originally fitted with 1604KL-04W-B39 and an identical three-pin connector configuration

☑️ Key Features

☑️ Compact 40mm × 40mm frame
☑️ Ultra-slim 10mm profile
☑️ 12V DC operation
☑️ Low 0.09A current draw
☑️ Three-wire construction
☑️ Preinstalled 3-pin connector
☑️ Third-wire monitoring support
☑️ Approximately 4500 RPM operating speed
☑️ Approximately 4.2 CFM maximum airflow
☑️ Ball-bearing construction
☑️ Brushless motor design
☑️ Suitable for continuous electronics cooling
☑️ Designed for restricted-space installations

⚙️ Fit Notes

• Compare the complete model number with the original fan before ordering.
• Confirm that the original fan is rated for 12V DC.
• Confirm the 40mm × 40mm × 10mm dimensions.
• Measure the original cable because lead length can vary between production assemblies.
• Compare the connector housing, locking tabs, pin spacing, and number of populated positions.
• Verify the wire order at the connector; identical wire colors do not guarantee an identical pinout.
• Do not assume every three-pin fan uses the same third-wire signal.
• Verify whether the equipment expects a tachometer output or a locked-rotor status output.
• Confirm the required airflow direction before installation.
• Do not substitute a 5V, 24V, or 48V fan.
• A thicker 40mm fan may interfere with surrounding components even if its mounting holes align.
• A two-wire replacement may rotate but can trigger a fan alarm or equipment shutdown when monitoring is required.
• A four-wire PWM fan is not a direct replacement unless the equipment and wiring have been specifically adapted.
• Disconnect power and allow stored electrical energy to discharge before servicing industrial equipment.
• Keep cables clear of the fan blades and secure them in the original routing position.