Technical Resources
Explore expert engineering insights, MIL-SPEC thermal management strategies, and SWaP-C optimization notes for mission-critical defense and aerospace applications.
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Altitude Derating
Technical Notes • 8 min
Altitude Derating in UAV and Avionics Cooling Fan Selection
Avionics cooling fan altitude derating must be considered before UAV payload or airborne radar fan selection. This technical note explains air density, mass flow, P-Q curve review, and MIL-STD-810H Method 500.6 context for defense cooling engineers.
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28VDC BLDC Fan
Technical Notes • 8 min
28VDC BLDC Fan Control and Electrical Protection for Avionics Cooling
28VDC BLDC fan avionics cooling requires early review of PWM control, FG feedback, locked-rotor protection, reverse-polarity protection, and transient tolerance. This technical note explains the interface decisions engineers should resolve before defense electronics design freeze.
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DSA 2026
Insights •
Perseus Electronics at SAHA EXPO 2026: Exhibiting in Istanbul with Same Elektronik
SAHA EXPO 2026 took place from May 5 to 9 at the Istanbul Expo Center in Istanbul, Turkey. The exhibition is held on a two-year cycle and has established itself as one of the leading defense, aerospace, and space industry exhibitions in the region. For Perseus Electronics, this edition of SAHA marked our participation on the Istanbul show floor as a joint exhibitor with our Turkish distribution partner, Same Elektronik. Our booth number was 8L-16.
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DSA 2026
Insights • 2min
Perseus Electronics at DSA 2026
The 19th edition of DSA took place from April 20 to 23 at the Malaysia International Trade and Exhibition Centre in Kuala Lumpur. Perseus Electronics attended with a standalone booth this year, number 6006, which put us on the floor alongside exhibitors and visitors from across the defense and aerospace sector. DSA runs on a two-year cycle, and the edition that just wrapped marked nearly two decades of the show establishing itself as one of the more substantive defense exhibitions in the Asia-Pacific region. The attendee mix reflects that. You get procurement teams, platform engineers, system integrators, and representatives from defense ministries and armed forces across Southeast Asia and further afield. It is not a show where people are browsing. The conversations tend to have a purpose behind them.
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SWaP
Insights • 7min
SWaP Optimization in Aerospace Cooling: Engineering Decisions Behind the Numbers
As aerospace payloads shrink in physical volume while processor density and heat flux continue to rise, thermal management competes directly with payload, fuel, and structural mass budgets. For system integrators working within fixed SWaP-C envelopes, the cooling subsystem is no longer a residual allocation—it is a constrained design variable. This article describes the specific engineering decisions Perseus made in PFM-series fan design to reduce size, weight, and power draw without compromising thermal performance or environmental qualification.
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Military Fans
Technical Notes • 5min
Military-Grade Cooling Fans for Extreme Environments
A Design and Validation Reference for System Integrators This technical note documents the engineering rationale, test methodologies, and material decisions behind Perseus PFM-series cooling fans. It is intended to support thermal engineers and procurement teams during platform integration, specification review, and obsolescence management—not as a substitute for program-specific qualification documentation.
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SWaP Optimization
Insights • 7 min read
Why Bearing Material Selection Defines Fan Reliability in Defense Deployments
Bearing selection in military cooling fans is rarely treated as a primary design variable. In most commercial procurement decisions, it is a cost consideration. In defense applications, it is a reliability decision with direct consequences for platform availability, maintenance intervals, and mission continuity. This article explains why Perseus specifies Silicon Nitride (Si₃N₄) ceramic ball bearings in PFM-series fans, what that decision means for system integrators, and where its limits are.
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EMC Design
Technical Notes • 8 min read
Military Fan EMC Design: Conducted Emission Suppression in Defense Enclosures
This technical note documents the EMC design decisions embedded in Perseus PFM-series cooling fans—covering grounding topology, input-side filtering, and motor-end suppression. It is intended to support RF and systems engineers evaluating thermal management components for electromagnetically sensitive enclosures.
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Low-Noise Fan
Technical Notes • 5 min read
Low-Noise Military Axial Fans: Acoustic Signature Reduction in Tactical Cooling Systems
This technical note documents the aeroacoustic design decisions in Perseus PFM-series axial fans—covering trailing-edge geometry, tip-vortex suppression, and the relationship between reduced rotational speed and bearing longevity. It is intended to support acoustic engineers and systems integrators evaluating cooling components for noise-sensitive tactical platforms.
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Technical Notes
Access detailed engineering parameters, MIL-SPEC guides, and thermal design references.
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White Paper
In-depth research reports, testing data, and validated solution references.
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FAQ
Find rapid answers regarding product selection, military qualification planning, and custom integration.
