Sunon vs Delta vs Sanyo Denki Cooling Fan Replacement Guide

Sunon, Delta and Sanyo Denki are widely used cooling fan manufacturers in servers, telecom equipment, industrial computers, power supplies, automation equipment and energy systems.

A Sunon fan may sometimes be replaced by a Delta or Sanyo Denki model, and the reverse is also possible. However, there is no universal cross-reference based only on fan dimensions or rated voltage.

A reliable replacement must match the original fan’s:

• Frame dimensions and mounting holes

• Rated voltage and operating voltage range

• Airflow at the equipment’s operating pressure

• Static-pressure capability

• Rated and starting current

• Connector and pin assignment

• PWM control input

• Tachometer or alarm output

• Airflow direction

• Operating temperature and expected life

The safest replacement is not necessarily the fan with the highest CFM or RPM. It is the fan that delivers the required airflow against the actual resistance of the equipment while remaining electrically and mechanically compatible.

Sunon Cooling Fans

Sunon supplies DC fans and blowers in sizes ranging from approximately 17mm to 120mm. Its products are commonly found in compact electronics, embedded systems, network equipment, power supplies and industrial control devices.

A major Sunon technology is its MagLev motor platform. MagLev designs use magnetic forces to improve rotor stability and reduce mechanical contact inside the motor system. Depending on the exact series, Sunon fans are available for applications requiring compact dimensions, low noise, energy efficiency or extended operating life.

Common Sunon product categories include:

• DC axial fans

• DC centrifugal blowers

• MagLev fans

• Super Silence fans

• High-airflow fans

• Waterproof fans

• High-temperature fans

• Compact and miniature fans

Sunon can be a suitable choice when the equipment requires a compact fan, moderate power consumption or a balance between airflow and acoustic performance.

The complete Sunon part number must still be checked. Models with a similar basic code may have different bearings, wire configurations, connectors, speed signals or environmental protection options.

Delta Cooling Fans

Delta offers a broad range of DC axial fans and centrifugal blowers for servers, telecom equipment, industrial systems, power supplies and high-density computing platforms.

Common Delta DC fan series include:

• AFB Series

• EFB Series

• PFB Series

• PFR Series

• GFB Series

• QFR Series

• ASB Series

• AUB Series

• BFB Series

The AFB family is widely used for general server, telecom and industrial cooling. PFB and PFR models are normally considered when higher airflow or static pressure is required. GFB models include deeper fan assemblies intended for demanding airflow paths, while BFB products are centrifugal blowers for directional airflow.

Delta also provides PWM-controlled fans, tachometer outputs, alarm functions and high-performance models for restrictive server chassis.

Delta is often considered for:

• High-density servers

• GPU and AI computing systems

• Network switches

• Telecom equipment

• Power supplies

• Industrial control cabinets

• Storage systems

• Equipment with restrictive heat sinks or airflow channels

Sanyo Denki San Ace Cooling Fans

Sanyo Denki markets its cooling products under the San Ace name. The product range includes standard DC fans as well as specialized models for high static pressure, long life and harsh environments.

Major San Ace product categories include:

• Standard DC fans

• Low-power-consumption fans

• Silent fans

• Long Life fans

• Splash Proof fans

• Oil Proof fans

• Counter Rotating fans

• Centrifugal blowers

Sanyo Denki provides more than 80 frame-size options across its DC cooling product range. Counter Rotating fans are designed for equipment with high component density and high system resistance. Long Life models are available for equipment in which maintenance intervals and fan replacement costs are critical.

San Ace fans are frequently used in:

• Industrial servers

• Telecom infrastructure

• Semiconductor equipment

• Factory automation

• Medical and laboratory equipment

• Power conversion systems

• Railway and transportation systems

• Outdoor or harsh-environment equipment

Sunon vs Delta vs Sanyo Denki: Main Differences

These differences describe the general product ranges. They do not establish direct compatibility between individual models.

Can Sunon, Delta and Sanyo Denki Fans Replace Each Other?

They can sometimes replace each other if all mechanical, electrical and thermal requirements match.

For example, a 12V, 80 × 80 × 38 mm Sunon fan cannot automatically be replaced by any 12V, 80 × 80 × 38 mm Delta or Sanyo Denki fan. Models with the same external dimensions may have significantly different:

• Rated speed

• Maximum airflow

• Static-pressure curve

• Power consumption

• Starting current

• Wire count

• Connector

• PWM specification

• Tachometer output

• Noise level

• Airflow direction

Replacement should be evaluated using the complete manufacturer part numbers and datasheets.

Request a Cooling Fan Replacement Recommendation

We support Sunon, Delta and Sanyo Denki fan identification, specification comparison and replacement selection for servers, telecom equipment, power supplies and industrial systems.

For an accurate cross-reference or quotation, please provide:

• Complete original fan model number

• Clear fan label photo

• Connector and lead-wire photo

• Fan dimensions

• Rated voltage and current

• Equipment manufacturer and model

• Application and operating environment

• Required quantity

• Required delivery date

If available, also provide the original datasheet, connector pinout and required airflow or static-pressure operating point.

Contact us to compare Sunon, Delta and Sanyo Denki cooling fans and check available replacement options, stock and lead time.