Mil-Spec Small DC Fans for Avionics & Defense Electronics
High-static-pressure DC fans for avionics, missile guidance, and space-constrained chassis.
Perseus small DC fans are built for assemblies where clearance and weight are already committed. Blade geometry is tuned for high-impedance heat sinks and narrow ducts, so airflow holds up behind filters and dense fin stacks. Minipro, Superpro, and Ultrapro cover 30mm to 80mm frames on 5–48V DC.
High-static-pressure DC fans for avionics, missile guidance, and space-constrained chassis.
Perseus small DC fans are built for assemblies where clearance and weight are already committed. Blade geometry is tuned for high-impedance heat sinks and narrow ducts, so airflow holds up behind filters and dense fin stacks. Minipro, Superpro, and Ultrapro cover 30mm to 80mm frames on 5–48V DC.
Core Technical Features
High-Static-Pressure Blade Geometry:
Profiles tuned for sealed enclosures and dense fin stacks, where fin resistance shifts as filters load up.
MIL-STD-810H Shock & Vibration:
Qualification planning references Method 516.8 for 40g shock (11ms, three-axis) and Method 514.8 for vibration endurance. Preloaded bearings hold rotational integrity through launch and high-G maneuvers.
-55°C to +85°C Operating Range:
Wide-temperature operation with cold-start review where the program requires it. References Methods 501.7 and 502.7; altitude derating reviewed against the platform profile.
SWaP-Optimized Frame Sizes:
5–48V DC input, frames from 30mm, with IP68 ingress protection per MIL-STD-810H Method 512.6. Light enough for UAV sensor payloads and missile guidance bays.
Typical Applications
-
![Airborne Radar Thermal
Management]()
Dense fin arrays in UAV and tactical aircraft radar modules exceed what standard axial fans can push through. Minipro and Superpro hold static pressure where it matters.
Airborne Radar Thermal Management
-
![Electro-Optic Targeting
Systems]()
Sealed EO/IR housings concentrate heat in small, vibration-exposed volumes. IP68 configurations handle thermal load and ingress protection together.
Electro-Optic Targeting Systems
-
![Missile Guidance and Control
Electronics]()
Guidance modules under 40mm need cooling that survives launch acceleration. The Minipro's MIL-STD-810H shock rating and IP68 sealing keep airflow active through terminal phase maneuvers.
Missile Guidance and Control Electronics
-
![Shipboard Communication
Cabinets]()
Salt fog, humidity, and continuous low-frequency vibration. Qualification planning references 96-hour neutral and 192-hour acidic salt spray for long service intervals.
Shipboard Communication Cabinets
Series Selection Guide
Three series cover 30 mm to 80 mm frames with no gaps — place a model by its outer frame size: ≤50 mm Minipro, 51–70 mm Superpro, 71–91 mm Ultrapro.
| Series | Frame Size | Max Airflow (CFM) | Power Range (W) |
|---|---|---|---|
| Minipro | ≤ 50 mm | 38.60 | 0.70–27.20 |
| Superpro | 51–70 mm | 68.39 | 2.04–30.80 |
| Ultrapro | 71–91 mm | 145.83 | 1.92–106.40 |
Compare Models
Narrow by frame size and supply voltage, then click any model to open its full technical page.
| Model | Frame | Airflow CFM | Static pres. mmH2O | Voltage | Noise dB(A) |
|---|
All Small DC Axial Fan Models
20 models
- Minipro PCG27FZW39-10G-AA 30 mm x 30 mm x 10 mm 12 V DC 4.82 CFM
- Minipro PCG36FZW312-28G-AA 40 mm x 40 mm x 28 mm 12 V DC 14 CFM
- Minipro PCG36FZW317-28G-BH 40 mm x 40 mm x 28 mm 12 V DC 20.1 CFM
- Minipro PCG36FZW319-28G-AA 40 mm x 40 mm x 28 mm 12 V DC 22.2 CFM
- Minipro PCG36FZW322-28G-BB 40 mm x 40 mm x 28 mm 12 V DC 25.71 CFM
- Minipro PCG36FZW412-28G-BA 40 mm x 40 mm x 28 mm 24 V DC 14 CFM
- Minipro PCG36FZW419-28G-BB 40 mm x 40 mm x 28 mm 24 V DC 22.2 CFM
- Minipro PCG36FZW422-28G-AA 40 mm x 40 mm x 28 mm 24 V DC 25.71 CFM
- Minipro PCG36FZW516-28G-AB 40 mm x 40 mm x 28 mm 28 V DC 18.88 CFM
- Minipro PCG36FZW519-28G-AA 40 mm x 40 mm x 28 mm 28 V DC 22.2 CFM
- Minipro PCG36FZW522-28G-BB 40 mm x 40 mm x 28 mm 28 V DC 25.71 CFM
- Minipro PCG36FZW528-30G-AA Dia. 44.45 mm x 39.2 mm 28 V DC 20.5 CFM
- Minipro PCG44FZW37-20G-AA 50 mm x 50 mm x 20 mm 12 V DC 16 CFM
- Superpro PCG50FZW522-47G-AB Dia. 55.3 mm x 47 mm 28 V DC 44.48 CFM
- Superpro PCG54FZW412-32G-AA 60 mm x 60 mm x 32 mm 24 V DC 61.4 CFM
- Superpro PCG54FZW512-32G-EA 60 mm x 60 mm x 32 mm 28 V DC 61.4 CFM
- Ultrapro PCG74FZW76-38G-AK 79.2 mm x 79.2 mm x 38.1 mm 48 V DC 68.07 CFM
- Ultrapro PCG74FZW415-38G-AC 80 mm x 80 mm x 38 mm 24 V DC 121.1 CFM
- Ultrapro PCG74FZW515-38G-AC 80 mm x 80 mm x 38 mm 28 V DC 121.1 CFM
- Ultrapro PCG70FZW522-40G-BC Dia. 82.6 mm x 40.5 mm 28 V DC 105.8 CFM
Military DC Fan Selection FAQ
Answers to the questions engineers ask most when specifying DC axial fans for defense and aerospace enclosures.
What airflow (CFM) and static pressure do I need?
Estimate system heat load (watts) and allowable temperature rise, then calculate required airflow. For dense or ducted enclosures, static pressure matters as much as CFM — use a fan curve that still delivers airflow at your system impedance.
Can the fan survive -55°C to +85°C and high altitude?
Cooling performance derates with air density, so a fan specified for sea level may underperform at altitude. Confirm operating and survival extremes match your environment, and verify reliable cold-start behavior at the low end.
Do I need PWM speed control or tach feedback?
If the system adjusts cooling based on temperature, a PWM-controlled fan with a tachometer (FG) output gives closed-loop control and health monitoring. For fixed cooling, a low-cost constant-speed fan may be enough.
What power and control interface options are available for 28 V DC avionics?
Small DC models are available on 28 V DC input for airborne buses per MIL-STD-704, with PWM speed control and FG/RD feedback for closed-loop or health-monitored systems. Above 50,000 ft, airflow should be confirmed with density-corrected calculations rather than sea-level figures; RTCA DO-160 test categories for vibration, temperature and altitude are agreed per program.
Engineering Resources
Technical guides to support your fan selection and system integration.
How to Read P-Q Curves for Military Fan Selection
Understand static pressure, airflow operating points, and system impedance for defense cooling applications.
Military Cooling Fan Selection Guide
Selection criteria for military cooling fans including environmental standards and qualification requirements.
28VDC Avionics Cooling Fan Evaluation
Evaluation framework for 28VDC avionics fans covering startup current, airflow, and EMI considerations.
Technical Insights
Engineering insights on thermal management, fan selection, and defense electronics cooling.