Ruggedized Power Conversion for Uncompromising Reliability
When operating in high-consequence defense, aerospace, naval, and tactical communications environments, electrical system failure is not an option. Powerstax designs and manufactures high-reliability (Hi-Rel) and Military-Standard (MIL-Spec) power supplies engineered to perform flawlessly under severe electrical transients, extreme thermal fluctuations, heavy shock, and intense mechanical vibration.
Our engineering team leverages decades of documented power conversion experience to deliver MIL-COTS and bespoke solutions compliant with stringent military and aerospace standards, including MIL-STD-704 (aircraft electric power), MIL-STD-1275 (28V DC vehicle supply spikes), MIL-STD-461 (EMC/EMI control), and DEF-STAN 59-411.
ISO 9001 Quality Control
Full component traceability, lot control, environmental stress screening (ESS), and thermal cycling across all production batches.
Severe Operating Envelopes
Extended baseplate temperature ranges from -40°C to +100°C, conduction cooling, and rugged encapsulation.
Military Standards Compliance
- • MIL-STD-704 (A-F): Airborne Electrical Power Quality & Transient Protection
- • MIL-STD-1275 (B-D): Ground Vehicle 28V DC Surge, Spike & Reverse Polarity Immunity
- • MIL-STD-461 (E-G): Conducted & Radiated Electromagnetic Interference Control
- • DEF-STAN 59-411: UK Defense Standard EMI/EMC Qualification
- • MIL-STD-810: Environmental Shock, Altitude, Humidity & Vibration Resistance
MIL-Spec Product Architecture
Select standard building blocks or request a modified platform. Our modular power building blocks allow fast configuration for complex defense OEM power systems.
DC-DC Converter Modules
High-density single, dual, triple, and high-voltage output DC-DC bricks featuring wide input ranges, high efficiency, and integrated protection circuits.
EMI Filter Modules
Stand-alone conducted noise filters engineered to comply with MIL-STD-461 and DEF-STAN 59-411 requirements across broad frequency spectrums.
Hold-Up Modules
High-efficiency bus capacitor charge and discharge management modules providing seamless hold-up power during input line dropouts and brownouts.
Pre-Regulator Modules
Input conditioning modules designed to regulate fluctuating DC vehicle or aircraft buses into stable intermediate voltage lines for downstream converters.
Transient Voltage Suppressors
Active voltage clamping devices designed to clamp severe input surges up to 100V DC and protect sensitive defense power electronics.
Bespoke MIL-Spec Engineering
Requiring unique physical dimensions, custom pinouts, extreme environmental testing, or multi-output custom enclosures? Powerstax offers value-added custom designs.
Featured High Reliability Model Specifications
Explore representative models designed for military ground systems, airborne equipment, and severe industrial controls.
PVS128-50B
Power Output: 50W
Voltage Clamping: Active 28V DC bus spike protection
Standards: MIL-STD-1275B/C/D compliant
PVS128-50A
Power Output: 50W
Voltage Clamping: High-surge vehicle transient absorption
Standards: MIL-STD-1275 & MIL-STD-704
PF2805/A
Input Current: 5A Max
Noise Attenuation: Differential & Common Mode
Standards: MIL-STD-461E/F/G
PF2803
Input Current: 3A Max
Package: High-density potted encapsulation
Standards: DEF-STAN 59-411 & MIL-STD-461
PF461-3
Input Current: 3A Max
Operating Temp: -40°C to +100°C Baseplate
Standards: MIL-STD-461 Airborne Duty
PXPG-100
Power Rating: 100W
Input Range: Wide 16V - 50V DC
Feature: Conduction-cooled metal baseplate
Have a Question About MIL-Spec & Hi-Rel Power Supplies?
Submit your system operating parameters, required military standards, thermal constraints, or custom enclosure dimensions. Our technical design engineers are ready to assist your procurement team.
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