Prometheus PCG38FLW54-20G-AA 50mm x 50mm x 20mm 28V DC Blower
50 mm x 50 mm x 20 mm · 18-32 V DC
centrifugal fan for high-impedance enclosure cooling. Full datasheet, P-Q curve and dimensional drawing available through an RFQ.
Overview
Application and specification highlights for Prometheus PCG38FLW54-20G-AA 50mm x 50mm x 20mm 28V DC Blower.
The Prometheus PCG38FLW54-20G-AA is a 28V DC centrifugal blower designed for high-impedance electronics enclosures and compact ducted cooling. The 50mm x 50mm x 20mm frame balances airflow capacity with installation footprint. Nominal supply is 28V DC, with an operating input window of 18-32V DC. Rated speed is 4,900 RPM.
At rated input, maximum free-air delivery is 4.6 CFM and peak static pressure is 9.3 mmH2O. Acoustic output is rated at 36 dB(A).
Build details include IP55 sealing available as a configuration option. Operating temperature range spans -55°C to +85°C. The model is supplied as a drop-in form-fit replacement for the legacy J38FLW54-20G-AA designation.
Key specifications
Reference values for Prometheus PCG38FLW54-20G-AA 50mm x 50mm x 20mm 28V DC Blower at nominal input and in free air: 4.60 CFM free-air flow at 9.30 mmH2O static pressure, supply 18-32 V DC. Specifications are subject to change without notice; see the full datasheet for derating curves, tolerances and qualification data.
| Parameter | Specification |
|---|---|
| Frame size | 50 mm x 50 mm x 20 mm |
| Rated voltage | 28 V DC |
| Voltage range | 18-32 V DC |
| Max airflow (free air) | 4.60 CFM |
| Max static pressure | 9.30 mmH2O |
| Rated rotational speed | 4,900 RPM |
| Acoustic noise | 36.0 dB(A) |
| Operating temperature | -55 °C to +85 °C |
Mechanical & environmental
Operating envelope, life expectancy and environmental qualification summary for Prometheus PCG38FLW54-20G-AA. Full environmental test report available through an RFQ.
| Parameter | Specification |
|---|---|
| Frame size | 50 mm x 50 mm x 20 mm |
| Protection rating | IP55 configuration option |
| Operating temperature range | -55 °C to +85 °C |
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 Prometheus PCG38FLW54-20G-AA at rated input.
P-Q Characteristic — PCG38FLW54-20G-AA @ 28V DC
Reference characteristic anchored to rated maximum airflow (4.6 CFM) and rated maximum static pressure (9.3 mmH2O). Use it for first-pass operating-point review only. Measured P-Q curves, CAD models, and lot-level test reports are available for qualified RFQ review.
