Prime Power’s years of experience designing, producing and maintaining high reliability custom power supplies places Prime Power as an ideal supplier for Build-to-Print manufacturing and test services for military applications. For more than 20 years, Prime Power has been a major supplier of high reliability custom power supplies for all environments and conditions.


Prime Power is a small, woman owned business established in 1991. Prime Power is a financially stable company with a proven history of making custom products for aircraft, shipboard, and ground based platforms.


Prime Power has a 14,000 square foot facility located in Hampstead, NH, USA, with majority of the space dedicated to manufacturing. Prime Power’s philosophy supports consistent control of the manufacturing process, which guarantees excellent performance, cost efficiencies and timely deliveries to meet the critical demands of Build-to-Print customers. Prime Power’s operational capacity enables the efficient manufacture and delivery of high mix, low to high volume assemblies. Prime Power is a financially strong company whose position is to fully understand the customer’s requirements with total commitment to meet or exceed them. Prime Power accomplishes customer goals by drawing on their extensive in-house capabilities and processes. Prime Power’s in-house resources uniquely position us to offer an extraordinary variety of production services. Prime Power teams with you to meet your goals by mutually entering into a long term business relationship. Prime Power produces various types of enclosures as well as many of the components like transformers and chokes for such assemblies. This vertical integration benefits Prime Power’s customers with size, cost and delivery and is a perfect match for Build-to-Print services, technical expertise and operational efficiencies.


Prime Power’s manufacturing techniques have been developed and perfected over many years and are continually monitored, revised and upgraded to remain current with customer demands. Assembly and test techniques include pick and place automation and hand placement of parts. Prime Power uses current testing methods and equipment. Prime Power’s in-house design and fabrication capability for assembly and tests provides our customers with convenience as well as cost benefits. Each assembly is tested and visually inspected to ensure it was manufactured in accordance with applicable standards. As a result of Prime Power’s extensive experience our assembly processes, materials controls, testing procedures and quality assurance processes are well established. Prime Power has a strong heritage in designing and manufacturing custom power supplies with a solid, long term customer base. Prime Power prides themselves in meeting or exceeding their customer expectations.


Toroid winding machines

Bobbin winding machines

Coil winding machines

Encapsulating (potting, varnish, etc.)

Trained and experienced operators

Dedicated testing capability

Printed Circuit Board Assembly

Automatic surface mount pick and place

Automated printed circuit board assembly

Conformal coating

Encapsulation – potting

Surface mount soldering and solder paste stenciling

Adhesive dispensing

Automatic Optical Inspection (AOI)


Electrical and Mechanical Assembly

IPC/EIA J-STD-001 certified soldering experts

Workmanship to IPC/EIA J-STD-001 and MIL-HDBK-454

Cleaning done in environmentally safe cleaning systems

Torque wrenches

Air tools

Crimping equipment

Chassis wiring and assembly

Cable assembly

Potting, staking and conformal coating

Testing – electrical and environmental

Each unit produced is 100% tested to your specification

Skilled technicians

Dedicated workstations

Calibration program

Automatic Test Equipment

High and low voltage electrical

Temperature: -55° to +105°C for both qualification and ESS

Temperature / altitude

Temperature / humidity

Thermal cycling

Thermal shock


Prime Power’s Quality Assurance System is compliant to ISO-9001:2008 and will soon be AS9100 certified as of the first quarter of 2016. Quality Assurance operations address incoming inspections, in-process inspections, final inspections, including data analysis and corrective action programs to ensure high quality products. Quality Assurance provides the failure analysis and trends tracking for customer returns.