Technical Specifications

Key Features

Applications

• Industrial electrical control enclosure ventilation
• Industrial power supply equipment cooling
• Embedded computer and controller thermal management
• Network and telecommunications equipment ventilation
• Electronic instrumentation forced-air cooling
• Equipment requiring three-wire FG fan-speed monitoring
• Compatible 80 mm DC axial intake and exhaust cooling systems
• Replacement of matching SUNON EE80251B1-000U-G99 cooling fans

Purchase Information

We support online purchase of the SUNON EE80251B1-000U-G99 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 EE80251B1-000U-G99?
EE80251B1-000U-G99 is a SUNON EE-series DC brushless axial cooling fan with an 80 x 80 x 25 mm frame, a 12 VDC rated supply, precision ball bearings and an F-type speed-feedback signal.

What is the rated voltage of EE80251B1-000U-G99?
SUNON specifies 12 VDC, with an operating voltage range of 4.5-13.8 VDC and a starting voltage of 4.5 VDC at 25°C. The installed power supply should meet the equipment's electrical requirements.

What are the dimensions of EE80251B1-000U-G99?
The nominal dimensions are 80 x 80 x 25 mm. The manufacturer drawing specifies an 80 ±0.5 mm square frame, 25 +0.5/-0 mm thickness, eight 4.3 ±0.3 mm mounting holes and 71.5 ±0.3 mm mounting-hole center spacing.

What is the rated current?
The exact SUNON manufacturer specification identifies 145 mA rated current and 167 mA maximum current at the documented operating conditions.

What is the power consumption?
The manufacturer specifies 1.7 W rated input power and 2.0 W maximum power consumption. These are the exact-model electrical ratings stated in specification D08038130G-00.

What is the rated fan speed?
SUNON specifies 3200 RPM with a tolerance of ±10% at the rated supply voltage. The manufacturer's frequency generator output can be used for speed monitoring with a compatible monitoring circuit.

What airflow does EE80251B1-000U-G99 provide?
The published airflow rating is 41 CFM, approximately 69.7 m³/h. The manufacturer measures airflow under defined test conditions, while actual installed airflow depends on the cooling system's resistance.

What is the maximum static pressure?
SUNON specifies 0.18 inH2O, approximately 44.8 Pa or 4.57 mmH2O. This figure describes the maximum pressure capability under the published fan-performance conditions.

What bearing system does EE80251B1-000U-G99 use?
The fan uses a precision dual ball bearing system. The exact-model manufacturer specification references a 70000-hour life expectancy at 40°C, 65% relative humidity and a 90% confidence level. This is a laboratory reliability reference, not an unconditional guarantee for every application.

What is the acoustical noise level?
The published noise rating is 33 dB(A). SUNON defines the measurement conditions using a free-air fan operating in a semi-anechoic environment with a microphone positioned one meter from the intake. Installed noise may vary with enclosure construction and mounting.

How is EE80251B1-000U-G99 electrically connected?
The manufacturer drawing specifies three UL 1007 24 AWG leads with a length of 300 ±30 mm. Red is positive, black is negative and yellow carries the F-type frequency generator signal. The signal uses an open-collector output with an external pull-up resistor shown in the manufacturer circuit, and the documented maximum collector current is 5 mA. The fan does not provide a dedicated PWM input. SUNON advises against PWM switching of the power or ground lead.

What should be checked before ordering EE80251B1-000U-G99?
Confirm the complete SUNON part number, 12 VDC supply, 145 mA rated current, 1.7 W power consumption, 3200 RPM speed, 41 CFM airflow, 0.18 inH2O static pressure, precision ball bearings, 80 x 80 x 25 mm dimensions, 71.5 mm mounting-hole spacing, three-wire configuration and FG monitoring interface. Verify connector termination, wire colors, signal pull-up requirements and host-system compatibility. EE80251B1-000U-A99 is a different functional version, EE80251S1-000U-A99 uses sleeve bearings, and EE80252B1 versions require 24 VDC. Do not substitute these models without confirming the mechanical, electrical and monitoring requirements of the equipment.