Civil Aviation 645242-1-QR Ø61.5mm 200V AC 400Hz Seat Display Unit Cooling Fan
Dia. 61.5 mm x 101.5 mm Centrifugal Fan · 400Hz AC
400 Hz AC fan for airborne 400 Hz platforms. Full datasheet, P-Q curve and dimensional drawing available through an RFQ.
Key specifications
Reference values for Civil Aviation 645242-1-QR Ø61.5mm 200V AC 400Hz Seat Display Unit Cooling Fan at nominal input and in free air: 66.00 CFM free-air flow at 50.80 mmH2O static pressure, supply 200 V AC single-phase. Specifications are subject to change without notice; see the full datasheet for derating curves, tolerances and qualification data.
| Parameter | Specification |
|---|---|
| Frame size | Dia. 61.5 mm x 101.5 mm Centrifugal Fan |
| Rated voltage | 200 V AC single-phase |
| Max airflow (free air) | 66.00 CFM |
| Max static pressure | 50.80 mmH2O |
| Rated rotational speed | 22,000 RPM |
Electrical & reliability
Input current, power, protection behavior and service life for Civil Aviation 645242-1-QR at reference conditions.
| Parameter | Specification |
|---|---|
| Rotation direction | Counter-clockwise, viewed from impeller side |
Mechanical & environmental
Operating envelope, life expectancy and environmental qualification summary for Civil Aviation 645242-1-QR. Full environmental test report available through an RFQ.
| Parameter | Specification |
|---|---|
| Frame size | Dia. 61.5 mm x 101.5 mm |
| Frame / impeller material | Aluminum alloy |
| Bearing type | Ball bearing |
| Weight | 0.817 kg max |
Environmental test details — including specific shock and acceleration profiles — are provided with the engineering review package upon request.
P-Q performance curve
Airflow vs. static pressure characteristics for Civil Aviation 645242-1-QR at rated input.
645242-1-QR performance at a glance
Civil aviation fan specified for seat display unit and seat electronics cooling. The figures below are steady-state values at nominal input; use them for a first-pass fit and confirm the operating point against the full P-Q curve before release.
This model is specified at a 50.8 mmH2O back pressure: 66 CFM minimum at that operating point, not a free-air figure.
| Operating current | 0.8 A max |
| Acoustic noise | 75 dB(A) max |
Full datasheet, P-Q curve, dimensional drawing and qualification report are available on request for this model.
Engineering notes for this model family
Push vs Pull Fan Configuration
How duct and cabin pressure decide whether a 400 Hz fan actually moves air.
Read the note →Altitude Derating in UAV and Avionics Cooling Fan Selection
Why an aircraft fan loses airflow at altitude, and how to size for the cruise condition.
Read the note →Common Cooling Fan Failure Modes
Bearing, winding and ingress failures that show up first in cabin and avionics returns.
Read the note →
