SANYO 109P0424E303 DC24V 0.19A 40*28MM 2-Wire High Airflow Inverter Cooling Fan

Sanyo Denki · Inverter Fan · 109P0424E303 · DC 24V High Airflow

What Is the Sanyo 109P0424E303 Cooling Fan?

The Sanyo Denki 109P0424E303 is a compact DC 24V axial cooling fan measuring 40x40x28mm and drawing 0.19A. Despite its small 4cm frame, the 28mm depth (versus the standard 10mm or 20mm for 40mm fans) accommodates a more powerful motor and aggressive blade geometry — delivering unusually high airflow for its footprint. It is commonly found in inverters, drives, and compact power electronics where space is limited but cooling demand is significant.

In short: A compact 40mm Sanyo Denki 24V cooling fan — the 28mm deep frame delivers higher airflow than standard 10-20mm 40mm fans, ideal for space-constrained inverters and drives needing aggressive spot cooling.

Key Features

1. 28mm Deep Frame for High Airflow

What it means: At 28mm deep, this fan has nearly triple the blade depth of a standard 10mm 40mm fan.
Why it matters: Deeper blades with higher pitch move more air at higher pressure — overcoming the restriction of dense heatsinks.
Result: Inverter-sized cooling power in a footprint normally associated with low-flow miniature fans.

2. Sanyo Denki Reliability

What it means: Japanese precision manufacturing with high-quality bearings and balanced rotors for smooth, quiet operation.
Why it matters: A failed cooling fan in an inverter leads to rapid thermal runaway of IGBT modules — fan reliability is directly tied to equipment reliability.
Result: Confident continuous operation in mission-critical drive applications where fan failure is not an option.

3. 24VDC Standard Power

What it means: Operates on the 24VDC control voltage commonly available inside inverters and industrial drives.
Why it matters: No need for a separate power supply or voltage converter — the fan uses the internal 24V bus already present in the equipment.
Result: Direct drop-in replacement with the same power wiring as the original fan.

Key Specifications

Typical Applications

• Compact VFD Internal Cooling: Providing focused airflow across the IGBT module heatsink inside small variable frequency drives up to approximately 5KW.
• Servo Drive Ventilation: Exhausting heat from compact servo amplifiers in multi-axis CNC and robot control cabinets.
• DC-DC Converter Cooling: Spot-cooling power semiconductors in high-density DC-DC converter modules for telecom and industrial applications.
• Embedded Power Supply Exhaust: Ventilating compact embedded AC-DC power supplies in instrumentation and telecom equipment.

Frequently Asked Questions

"How much airflow does this 40x28mm fan deliver?"

Sanyo Denki 40x28mm fans in this power class typically deliver 12-18 CFM — significantly more than the 5-8 CFM of a standard 40x10mm or 40x20mm fan. This increased airflow allows the fan to cool power electronics that would otherwise require a larger 60mm or 80mm fan — saving valuable PCB and enclosure space.

"Can I replace a 40x20mm fan with this 40x28mm model?"

Yes, if the additional 8mm of depth is available in your enclosure. The mounting hole pattern (32mm square) is the same for all 40mm fans regardless of depth. Before ordering, measure the available depth from the mounting surface to the nearest obstruction — the extra 8mm must clear any nearby components, heatsinks, or enclosure walls.

"What is the noise level compared to a standard 40mm fan?"

The deeper blades and more powerful motor produce higher noise than a 40x10mm fan at full speed — typically 30-35 dBA versus 20-25 dBA. The trade-off is substantially higher airflow. For noise-sensitive applications, a PWM speed-controlled variant would allow running at reduced speed (and noise) during lower thermal load periods.

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