Technical Specifications

Key Features

Applications

• Industrial control cabinet forced-air ventilation
• Industrial automation equipment thermal management
• Switching power supply cooling
• Industrial inverter and power electronics ventilation
• Server and computing equipment enclosure cooling
• Telecommunications equipment thermal management
• Industrial electronic instrumentation ventilation
• Replacement of compatible 120 mm 12 VDC axial cooling fans

Purchase Information

We support online purchase of the SUNON EEC0381B1-000U-A99 fan. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.

Frequently Asked Questions

What is SUNON EEC0381B1-000U-A99?
EEC0381B1-000U-A99 is a SUNON EEC-series brushless DC axial cooling fan featuring a 120 x 120 x 38 mm housing, 12 VDC rated voltage and precision ball bearing system.

What is the rated voltage of EEC0381B1-000U-A99?
The manufacturer specifies 12 VDC, with an operating voltage range of 6-13.8 VDC and a starting voltage of 6 VDC at 25°C.

What are the dimensions of EEC0381B1-000U-A99?
The nominal dimensions are 120 x 120 x 38 mm. SUNON's mechanical drawing specifies a frame width of 120 ±0.5 mm and a mounting-hole center spacing of 105 ±0.3 mm.

What is the rated current?
The revised SUNON manufacturer specification identifies 833 mA rated current and 958 mA maximum current. Certain distributor listings show 0.880 A, so the manufacturer specification should be used when comparing documented ratings.

What is the power consumption?
SUNON specifies 10.0 W rated power consumption and 11.5 W maximum power consumption.

What is the rated fan speed?
The manufacturer specifies 3100 RPM with a tolerance of ±10% at the rated supply voltage.

What airflow does EEC0381B1-000U-A99 provide?
The SUNON manufacturer datasheet specifies 138 CFM, approximately 234.5 m³/h, under its published airflow measurement conditions.

What is the static pressure rating?
The maximum static pressure is 0.36 inH2O, equivalent to approximately 89.7 Pa.

What bearing system does EEC0381B1-000U-A99 use?
The manufacturer specifies a precision ball bearing system. The EEC0381B1 model code identifies a dual ball bearing design.

What is the acoustical noise level?
The manufacturer specifies 48 dB(A). Actual installed noise may vary with mounting conditions, airflow restrictions and surrounding equipment.

How is EEC0381B1-000U-A99 electrically connected?
The manufacturer drawing specifies two DC power leads using UL 1007 24 AWG wire. Red is positive and black is negative, with a specified lead length of 330 ±15 mm. The standard two-wire configuration does not provide a separate PWM control or tachometer lead.

What should be checked before ordering EEC0381B1-000U-A99?
Confirm the complete SUNON model number, 12 VDC supply, 0.833 A rated current, 10 W power consumption, 120 x 120 x 38 mm dimensions, 105 mm mounting-hole spacing, precision ball bearing, two-wire electrical connection, lead polarity, airflow direction and required cooling performance. EEC0381B2-000U-A99 and EEC0381B3-000U-A99 have different speed, airflow and power ratings, while EEC0382B1-000U-A99 is a 24 VDC model. Do not substitute these versions without confirming electrical and mechanical compatibility.