Veteran Owned Small Business · CAGE 0P327 +1 (813) 996-2583 Engineering & Manufacturing in Land O' Lakes, FL, USA
MIL-SEALED Series™ · IP65 & IP67 Certified

Military Sealed Waterproof Power Supplies

Rugged AC-DC & DC-DC power solutions engineered for submersion, shock, and extreme defense environments.

IP67 / IP65 Waterproof & Submersible Enclosures
94% Ultra-High Efficiency Conversion
MIL-STD-810/461 Tested for Shock, Vibration & EMI
300W - 2000W Scalable Power System Configurations
Defense Engineering Standards

High-Reliability IP65 & IP67 Environmentally Sealed Power Supplies

The MIL-SEALED Series™ product line from AJ's Power Source Inc. delivers robust, fanless AC-DC and DC-DC power conversion engineered specifically for extreme tactical environments, exposed naval decks, military ground vehicles, and field shelters.

300W AC-DC Military Sealed 300W AC to DC Power Supply IP67

Military Sealed 300W AC-DC Power Supply

Ultra-compact, fully potted IP67 unit providing dependable 12V, 24V, 28V, or 48V DC outputs under harsh environmental exposure.

  • MIL-STD-810 shock, vibration & moisture compliance
  • Conduction cooling through heavy-duty aluminum chassis
  • Circular MIL-DTL-38999 weather-tight connectors
400W AC-DC Military Sealed 400W Heatsink Power Supply IP65

Military Sealed 400W Heatsink Power Supply

Engineered with integrated thermal fins for high ambient operation up to +70°C without requiring forced air ventilation.

  • Wide universal AC input range
  • IP65 ingress protection against water spray & dust
  • MIL-STD-461 low-noise EMI filtering
600W AC-DC Military Sealed 600W High Efficiency Power Supply

Military Sealed 600W Power Conversion System

High-density sealed power module engineered for mission-critical mobile communications, radar systems, and tactical ground gear.

  • Up to 94% power conversion efficiency
  • Submersible IP67 sealed structural enclosure
  • Over-voltage, short-circuit & thermal protections
300W DC-DC Military Vehicle Sealed 300W DC to DC Power Converter

Military Sealed 300W DC-DC Converter

Vehicle-grade sealed converter tailored for 28V VDC military vehicle buses requiring immunity to voltage surges and transients.

  • MIL-STD-1275 transient protection
  • Rugged low-profile sealed mounting chassis
  • Isolated multi-rail output configurations
Custom Power Custom Military Sealed Waterproof Power Supply Design

Custom Modular MIL-SEALED Power Units

Tailor-made power solutions scaled up to 2000W output with custom pinouts, enclosure geometries, and specific bus voltages.

  • Custom DC outputs: 12V, 24V, 28V, 36V, 48V, 52V
  • Modified COTS response for short lead-time delivery
  • Full qualification data packages provided
Shipboard Grade Shipboard Weatherproof Military Power Conversion Unit

Shipboard Weatherproof Power Converters

Corrosion-resistant sealed power units designed to meet naval shipboard power quality and shock requirements.

  • MIL-STD-1399 Section 300 compliant interface
  • Salt-fog corrosion resistant hard-anodized finish
  • Grade A shock capability (MIL-S-901)
Qualification Envelopes

Military Standard Testing & Environmental Compliance

Fielding equipment in combat zones, desert deployments, or high-salinity naval environments leaves no margin for power supply failure. Every MIL-SEALED unit is built to withstand extreme mechanical, thermal, and electrical stresses.

Military Standard Environmental / Electrical Scope Technical Engineering Implementation
MIL-STD-810F / G / H Environmental engineering & lab testing Hermetic sealing, internal potting, salt-fog corrosion resistant coatings, resistance to sand, dust, high humidity, and extreme vibration/shock.
MIL-STD-461E / F / G Electromagnetic interference (EMI/EMC) Multi-stage internal EMI filter networks ensuring compliance with CE101, CE102, CE103, RE101, and RE102 emission limits.
MIL-STD-1275D / E 28 VDC heavy vehicle input power Active over-voltage surge protection, spike clamping, and brownout hold-up for military ground vehicle electrical systems.
MIL-STD-1399 (Sec 300) Shipboard electrical power compatibility High power factor correction, low harmonic distortion, and electrical isolation for shipboard AC distribution systems.
IP65 & IP67 Standard Ingress protection (Water & Dust) Complete dust-tight seal with protection against direct high-pressure water jets (IP65) and continuous submersion up to 1m depth (IP67).
MIL-SEALED military power supply engineering design and thermal management
Engineering Excellence

Conduction-Cooled Fanless Design with 94% Efficiency

Traditional forced-air cooling fans are the primary failure point in harsh-environment military deployments due to water, sand, salt spray, and dust clogging. Our MIL-SEALED Series removes active fans completely.

  • Fanless Thermal Path: Internal components transfer heat through high-conductivity potting materials directly to the aluminum chassis shell.
  • Submersible Integrity: Precision O-ring seals and potted electronics ensure zero fluid ingress even during temporary total water immersion.
  • High Conversion Efficiency: Advanced resonant converter topologies yield efficiencies up to 94%, greatly minimizing waste heat generation.
  • Rugged Interconnects: Equipped with circular MIL-spec environmental connectors (MIL-DTL-38999 or custom water-tight interfaces).
Global Defense Supplier

Why Defense Contractors Rely on AJ's Power Source

With over 35 years of dedicated power conversion engineering, AJPS supports military prime contractors, international defense integrators, and government agencies worldwide.

U.S. Manufacturing

All design, prototyping, assembly, and testing are conducted at our facility in Land O' Lakes, Florida, USA.

CAGE Code 0P327

Registered Veteran Owned Small Business (VOSB) with decades of military procurement and supply chain experience.

ISO 9001:2015 Quality

Certified quality management system registered through PJR with ANAB accreditation for military-grade manufacturing.

Modified COTS Support

Fast-track program execution by modifying proven mechanical or electrical baselines to meet tight procurement deadlines.

Frequently Asked Questions

Technical FAQ for Procurement & Engineering Teams

IP65 sealed power supplies are protected against high-pressure water jets and dust ingress from any direction, making them ideal for deck-mounted or vehicle-mounted splash zones. IP67 power supplies offer total protection against dust and remain operational during full water submersion up to 1 meter depth for specified durations.

Our MIL-SEALED Series utilizes high-efficiency power topologies (up to 94%) combined with internal potting compounds and conduction heat sinking through high-density aluminum chassis walls. Waste heat is dissipated efficiently via conduction and natural convection without active fans or air intake vents.

The MIL-SEALED series is engineered and tested to satisfy MIL-STD-810 (humidity, altitude, sand, dust, shock, vibration, and temperature extremes), MIL-STD-461 (conducted and radiated EMI/EMC), and MIL-STD-1399 Section 300 (shipboard power quality).

Yes. While standard COTS outputs include 12VDC, 24VDC, 28VDC, 36VDC, 48VDC, and 52VDC, our engineering team regularly modifies connector types (including circular MIL-DTL-38999 connectors), mounting brackets, and electrical parameters to fit OEM program requirements.

Request Technical Specifications & Catalogs

Contact our power engineering group to evaluate electrical specifications, mechanical drawings, 3D CAD models, or custom MIL-SEALED configurations for your defense program.

Direct Engineering Line: +1 (813) 996-2583