HITEK Electronic Materials Ltd has provided a custom built services to the UK Electronics industry since 1985 from its headquarters in Scunthorpe. Hitek's main products include: Radar Absorbent Material (RAM), Adhesives, Thermal Insulators and EMI Shielding.

HITEK is the UK & Irish Distributor for Emerson and Cuming Microwave Products, and covers the UK for Emerson and Cuming's Specialty Polymers and Parker Hannifin plc, Chomerics Europe Division. HITEK are also the UK mainland Distributor for TECAN's range of Standard Cans and the TECPACK range of prototyping metal cans. We also supply adhesives from Permabond, and the Shieldex range of conductive fabrics, that are used for architectural shielding as well as clothing, uniforms and fabric enclosures.

Radar Absorbent Material (RAM)

As the UK distributor for Emerson and Cuming microwave products, Hitek brings over 15 years experience to the absorber marketplace. Microwave Absorbers are being used in many diverse applications and can be found in telecommunication base stations, mobile phones, antennas, car radio systems in addition to military and defence related applications.

Absorbers can be used in a wide range of applications where more traditional EMC solutions fail microwave absorbers can be manufactured from a range of foams, or in a flat sheet form from silicones and urethanes.

Hitek carry extensive stocks of Microwave Absorbers and can quickly and cost effectively supply die-cut parts to your exact needs. Parts machined from solid microwave materials such as EccoStock are also available.

The extensive stock of EccoSorb absorbers is complemented by the EccoShield range of materials and there are also special Eccobond adhesives available for bonding the absorbers to metal surfaces. Fire retardant products are available and materials can be supplied fully weatherproofed.

From flat sheet absorbers such as the AN range, through to the complex wide band absorbers, Emerson and Cumming can solve problems from sub 1Ghz to 40 GHz and beyond. Whether you are looking to absorb a specific frequency, dampen down a resonating cavity, or just reduce some eddy currents, there is a solution for you.

ADHESIVES

Hitek supplies a range of Adhesives from Emerson & Cuming, Chomerics and Permabond and Bondmaster. These can be grouped conveniently into there categories

• Non-conductive

• Electrically conductive

• Thermally conductive

When considering the use of an adhesive several factors have to be considered:

1) What type of joint is being made: Co-axial, lap or butt joint?
2) What is the joint function?
3) What are the environmental conditions?
4) How long a cure is acceptable?
5) What materials are to be joined?

Answering the above questions will enable you to then narrow down the options:

Below is a brief description of the different types of Adhesives

• Anaerobic - These require the presence of a metal surface and the absence of air. The surfaces must be close fitting.

• Cyano Acrylates - These harden in seconds in the presence of surface moisture and cure extremely rapidly.

• Epoxies - Epoxies come in one and two part forms one part epoxies require heat cure, two part epoxies can be cured at room temperature.

• UV Cured Adhesives - These are single part materials that cure when exposed to sources of UV light, cure times of less that 1 second are possible.

• Silicones - These comes in one part moisture cure and two part forms. They generally are used where the flexible nature of the cured material over a wide temperature range is required.

EMI SHIELDING

As a fabricator and stocking distributor for Parker Hannifin Chomerics Division, Emerson and Cumming Microwave products and TECAN Components Ltd Hitek is in an ideal position to solve your EMI related problems in a cost effective manner.

Our sales force have vast experience in solving customer's problems and can call on the factory and manufacturers for help and advice at every level of design and production.

With its flexible and multi-talented manufacturing unit Hitek is able to provide from one to tens of thousand items promptly and efficiently. Capabilities include splicing, die cutting and fabricating to the most demanding tolerances. Prototyping can be supplied very quickly.

The ability to dispense gaskets directly into customer housing is being developed in-house and will shortly be commissioned. This will allow Hitek to expand into markets that conventional solutions can not solve.

Whether you are in the Telecommunications, Defence, Automotive, Cabling, IT/PC or Peripherals market, Hitek can and will solve your EMI problems with cost-effective solutions that meet the market needs.