Understanding SUNON Fan Model Number Structure

SUNON, a global leader in thermal management solutions since 1980, employs a systematic model numbering convention that encodes critical product specifications into a compact alphanumeric code. This coding system enables engineers, procurement specialists, and system integrators to quickly identify fan characteristics including motor series, dimensions, speed rating, bearing type, voltage, and functional features. Mastering the SUNON fan model naming rules is essential for selecting the optimal cooling solution for industrial automation, server cooling, and smart manufacturing applications.

New Coding System Format (DC Fans)

The modern SUNON DC fan coding system follows a structured format that packs multiple specifications into a single model number. Below is the complete breakdown of each position in the coding format [Motor Series][Series Category][Size Code][Thickness Code][Speed Code][Bearing Code][Voltage Code]-[Speed Number][Function Code]:

For example, the model ME8025000C-A99 breaks down as: M (motor series) + E (category) + 80 (80mm size) + 25 (25mm thickness) + 000 (speed code) + C (bearing) + A99 (function code).

Voltage Code Reference Table

SUNON DC fans feature a voltage code integrated into the model number, positioned before the bearing code. Engineers can quickly identify the operating voltage without consulting a datasheet:

For AC fans, SUNON supports multiple voltage ratings to accommodate global power standards:

Bearing Type Codes

SUNON employs three primary bearing types, each identified by a single letter code. The bearing type directly impacts fan lifespan, noise level, and operating environment suitability:

Function Code Reference

The function code system provides additional feature information, defining special capabilities such as auto-restart, speed feedback signals, and PWM control:

Speed Code Reference

The speed code indicates the relative rotational speed category of the fan. Higher speed generally means greater airflow but also increased noise:

Size Code Reference Table

SUNON size codes directly correspond to actual fan dimensions in millimeters. Standard codes cover fans from 10mm to 340mm+, with extended codes for larger industrial fans:

For fans larger than 150mm, SUNON uses extended alphabetical codes:

Safety Certification Marks

Safety certification marks in the model number indicate compliance with regional and international standards. These certifications are critical for product compliance in different global markets:

Legacy Coding System for DC Fans

Older SUNON DC fan models utilize a different coding convention. Taking PMD1212PMB1-A(2).GN as an example, each segment carries specific meaning:

Practical Model Decoding Examples

To illustrate how these coding rules work together, here are two complete model decoding examples:

Practical Application in Product Selection

For Industry 4.0 smart manufacturing applications, understanding SUNON’s model naming convention streamlines the product selection process. When specifying cooling fans for industrial control cabinets, engineers can quickly identify the appropriate model by decoding the size, voltage, bearing type, and function codes. For example, a 120mm fan with 24VDC operation, dual ball bearing, and PWM speed control for an industrial PLC cabinet would require a model with size code 120, voltage code 2, bearing code B, and function code H99 or Q99. This systematic approach to product identification reduces specification errors and accelerates the design cycle for thermal management solutions in automated manufacturing environments.