Description
The Runda RD4020B12SH is a precision-engineered DC Axial Fan designed for high-density thermal management applications requiring substantial airflow in a compact footprint. Featuring a robust thermoplastic housing and an optimized impeller geometry, this unit delivers consistent airflow while maintaining structural rigidity under thermal stress. The fan utilizes a durable dual ball bearing system, which significantly reduces the friction coefficient and extends the mean time between failures (MTBF) compared to standard sleeve bearing alternatives. Engineered for efficiency, the RD4020B12SH operates with a specialized DC motor driver that minimizes electromagnetic interference, ensuring reliable performance in sensitive electronic environments. Its compact form factor allows for integration into space-constrained enclosures requiring active cooling and low thermal impedance.
Model Number: RD4020B12SH
Brand: Runda
Product Type: DC Axial Fan
Rated Voltage: 12VDC
Voltage Range: 10.2 – 13.8 VDC
Rated Current: 0.40 A
Power Input: 4.80 W
Rated Speed: 8500 RPM
Bearing Type: Dual Ball Bearing
Max. Air Flow: 12.5 CFM (21.2 m³/h)
Max. Static Pressure: 0.35 inH₂O (87 Pa)
Dimensions: 40 x 40 x 20 mm
Noise Level: 38.5 dBA
Frame Material: PBT Thermoplastic (UL94V-0)
Impeller Material: PBT Thermoplastic (UL94V-0)
Termination: 2-Wire Leads (Red +, Black -)
Operating Temperature: -10°C to +70°C
Life Expectancy: 50,000 Hours at 40°C
Mounting Orientation: Any
The RD4020B12SH is frequently utilized in compact industrial electronics where high static pressure is required to overcome system resistance. Common deployment environments include 1U server rack power supplies, small form factor CNC controllers, and telecommunications switching equipment. The RD4020B12SH ensures critical components remain within safe thermal operating limits, preventing throttling in network routers and embedded medical devices.
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Additional information
| Shipping Weight | 1 kg |
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