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Line Card


True single source supplier of portable power requirements including Lithium Ion, Lithium Polymer, Lithium Iron Phosphate, Nickel Metal Hydride, Nickel Cadmium and Alkaline batteries. Harding also offers Internal/External charging management and design, customized enclosures for battery packs, facilitation of regulatory agency testing and approvals and is ISO 9001 certified.


Quick turn and production of high technology flex and rigid flex interconnect solutions. Product technology includes CAD/Gerber design, Multilayer (up to 6 layers). Single & Double sided, Air-gap separation, Double access, HDI, Impedance controlled, EMI silver shield, trace width of 40um/40um for SS and 50um/50um DS, Plating options of Gold, Nickel, ENIG, Sn/pb, HASL and Silver / Carbon printing. Circletek also offers Hybrid & Turnkey assemblies, Wire bonding and Chip on flex. Circletek is ISO 9001:2000 and UL certified.


Global supplier of electronic components, cable assemblies, patch panels and turn key assemblies. Electronic component offerings include Battery holders & snaps, Cigarette lighter plugs/adapters, Fans, RCA plugs/jacks, Switches, Connectors, Hardware and Modular components. Cable assemblies include Audio/Video, Camera Link, Coaxial, Fiber Optic, D-Sub, DVI, HDMI, Machine Vision, Power Cords, Ribbon, Coil cord, Cisco equivalent, Cat 5, 6 and 5E, SCSI I, II, III and V.35 assemblies. 32 Port async octal, 16 Port octal modem, 8 Port T1, AIC-2 Dual alarm interface controller are just a few of the patch panels offered. CEI is a registered Small Disadvantaged Business I.D.H.R.#110308-0 and is ISO 9001:2000 certified.


Complete precision sheet metal fabrication services including Engineering design and support, Quick turn prototypes, Tube bending, Forming, Pem setting, Riveting, Deburring, Punching, Shearing, Grinding, Tapping, Robotic welding, Spot-Weld (Alum, Steel), Welding (Mig, Tig), Painting, Plating, Machining and Laser cutting. Geometrix services the computer, electronics, aerospace, medical, vending and appliance industries.


Utilizing state of the art equipment, Circuitronics manufactures PCB’s up to 34 layers using many material types including Polyimide, Teflon, Rogers, BT, Berquist and can offer heavy copper up to 6 ounce. Circuitronics can also produce domestically many types of technologies including flex, rigid flex, blind and buried vias, copper filled micro vias and micro vias with in-house laser drilling. For lead-time and quality control, all plating processes are located in-house and include ENIG, Silver, OSP, Electrolytic hard/soft gold, and lead-free HASL. Circuitronics has five manufacturing facilities, two that are domestic and three that are off-shore with our headquarters located in Wheaton, Illinois. Our three off-shore facilities for large volume production are located in Shenzhen China, Taipei Taiwan, and Bangalore India. All of these facilities have ISO9001, QS 9000, and TS16949 certifications as well as being UL certified.


Located in Shenzhen China, MLD is a Western Style Company offering Aluminum and Zinc Die-Casting (138 -1250 Tons), Plastic Injection Molding (80-300Tons), Aluminum Extrusion and CNC machining/Mold making with surface finish options of shot blast, painting, anodizing and plating. With ISO 9001:2000 & 14001:2004 certifications, the MLD Group provides their customers with world class service at a competitive price. MingLiDa Engineers have extensive training in England, Sweden, USA, Australia and Germany which facilitates opportunities for cost effective manufacturing solutions. The MLD group services the consumer electronics, construction, communications, automotive, lighting, beverage and industrial industries.


Apogee Power Sources is a leader in the design of high end custom ATX computer power systems. Apogee provides both AC and DC input ATX along with stand alone and redundant systems. Apogee also provides standard designs with power ratings from 300 to 1,000 watts that are geared to end products such as high rel servers where reliability and support are key factors Apogee products are UL listed, TUV approved and carry the CE, PSE and CCC if requested


CSI has been providing custom membrane keypad design and manufacturing expertise to customers worldwide for over 25 years. Designed and manufactured to our customers specifications, CSI products can include the following capabilities: membrane switches, rubber keypads(silicone/elastomeric), touch-screens, flex circuits, Tactile metal dome membrane switches, Non-tactile membrane switches, PCB based membrane switches along with full "plug and play" interface assemblies. All design and qualification testing is done at our modern 20,000 square foot facility in Peabody. For our assembly/manufacturing process we have full capabilities in Peabody as well as offshore.


Servicing customers around the world since 1972, the Frontier product line includes everything from off-the-shelf RF chokes, coils and inductors to custom-made transformers and SMD magnetic chips. At Frontier, fully understanding the customer requirements is a top priority. With a wealth of engineering ingenuity, a team-oriented environment and a vast reservoir of talented employees, Frontier proudly maintains the following pledge to all our customers: Competitive pricing, On-time delivery, Quality without compromise, State of-the-art manufacturing Prototypes, Extra savings for high-volume and Extensive technical support and project design assistance from initial concept through production. Frontier is an ISO 9001, 9002 & QS9000 Certified company.


Specializing in the design and manufacture of high power density, high efficiency AC-DC and DC-DC power supplies including DC-DC Converters, Configurable Modular Switch Mode Power Supply (SMPS), plus AC Rectifiers and Bulk Power Supply Units (PSU). Powerstax also provides standard and custom AC & DC power solutions for centralized and distributed power (DPA) in applications such as hot swap front end AC-DC bulk power, DC-DC converter bricks and programmable modular rack mounted Power Supplies for use in Telecoms, Datacoms, IT, Industrial, Transportation, Avionic, Defense, Test and Control as well as Medical. Powerstax holds certifications of ISO 9001, UL, CE and medical approvals of UL2601-1 and EN60601-1.

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