Category: Uncategorised

• Home
• /
• Uncategorised

Kitagawa’s WINAL EMI film is an extremely transparent, thin and lightweight material that is easy to cut and electrically conductive. It is great for EMC and electro static discharge of LCD screens, apertures and other displays. The low surface electric resistance provides higher shielding effectiveness.

When electromagnetic waves such as radio frequency encounter the shielding layer, the conductive material reflects, absorbs or disperses the energy. Part of the EMI is absorbed and converted into heat, whilst the remaining EMI is guided to ground through the conductive layer. This prevents the EMI from disrupting display circuits or nearby components.

There are numerous applications for the WINAL conductive film and below are some examples:

Medical Equipment
The conductive film allows medical devices to be EMI proof. The monitoring screens of medical equipment need to be shielded so that EMI is not radiated within the room. This ensures that monitoring patient health remains reliable.

Displays
EMI film provides a complete magnetic seal against EM waves and RF while ensuring permeability in the visible spectrum. This is why shielding film is used for shielding digital displays.

Smartphones
EMI conductive films prevent high frequency signals (such as Wi-Fi, 5G) from interfering with components like camera and display drivers. They also prevent internal components from emitting signals that disrupt other parts of the phone.

Our WINAL series is available in custom shapes and sizes with punched holes, or with adhesive tape backing. Please contact our sales team or for pricing or samples.

• Home
• /
• Uncategorised

Kitagawa all metal EMI shielding gaskets are regularly used on cast, machined and sheet metal enclosures. The mesh gaskets are particularly suitable for  groove mounting where they are held in place by sidewall friction.

The EMI gaskets can also be fixed in place by gluing, riveting, spot welding or soldering. With an all metal construction they can operate at very high temperatures.

The knitted structure of the wire mesh gasket conforms to irregular surfaces, thus providing a reliable shielding effect. Non-braiding and non-wire loosening are also available which allows the customer to cut to their required length.

Custom profiles and lengths are available upon request. Round and rectangle profile are available, as well as P-shape, that is used to help attach the gasket to fins. Further information on our standard profiles is listed on our datasheet.

• Home
• /
• Uncategorised

Kitagawa onboard spring contacts are a versatile, single-contact surface mountable metal connector used on PCBs for grounding, shielding and connecting electronic components. They prevent electromagnetic interference (EMI) and static caused by other components such as motors or speakers.

The spring contacts are supplied in reel format, making them an ideal solution for automated assembly. Their compact size ensures efficient use of limited PCB space and are a low-cost solution that are easy to incorporate into both new and existing designs.

Spring finger contacts have a box-like structure that prevents damage and deformation to the springs. The box structure allows the SMD contact to withstand hundreds of thousands of compression cycles. There is a wide variety of sizes and heights are available to fit almost any gap.

As well as Kitagawa’s OG Series, there are a number of other profiles suited to other configurations such as the OG-R Series. This is an ultra-narrow profile that is more suited to ultra-thin spaces compared to the OG Series. In addition to this it provides enhanced grounding and fixing near screws.

For grounding side contacts, customers may consider the OGSC Series. An ideal spring contact solution for applications where standard grounding between parallel boards or chassis is not possible. The light weight design of the OGSC profile helps reduce load on the PCB.

The OGP profile is a special designed on-board contacts with enhanced strength from a fibreglass reinforcement. This is suited for PCBs subject to extreme levels of vibration. Not only do they protect PCBs from vibration damage, the prevent screws from coming lose due to vibration.

Kitagawa’s spring finger contacts are designed for a variety of applications such as HVACs, smart factories, displays, flat screen TVs, automotive, video cameras and smartphones. As well as our website data we can provide additional test data and 3D drawings for each part number. Please contact our sales team for further information.

• Home
• /
• Uncategorised

Ferrite beads are a surface mounted device (SMD) fitted at PCB level, typically near the point of entry for cables or power supplies. They are used to filter out higher frequency noise on a power line and increase the impedance over a certain band of frequencies.

The SMD beads are a high permeable material which means they effectively collect magnetic fields. As they collect magnetic fields they limit the ability of the fields to change rapidly, thus acting as a filter of high energy.

Ferrite beads exhibit an inductive region or band where the impedance linearly increases vs frequency. They exhibit an inductive region or band which is located in the mid-band range of the bead, which is also where the impedance is the highest. Thus SMD ferrites can act as a great loss mechanism at their mid-band frequency. Then at high end band frequencies they start to act capacitive as they come out of the restive band as the frequency increases.

The multilayer chip beads are a low-cost option compared to traditional inductors or ferrite cores, and their compact size makes then an ideal solution for small electronic devices. In addition to this they provide excellent solderability and high heat resistance for either wave soldering or reflow. The monolithic structure provides high reliability and stable performance.

We offer a variety of ferrite bead profiles:

0201 (0603 metric) profile – Micro sized ferrite beads designed for space saving and small devices.

High Current Profile – For high current DC power lines and circuits where stable grounding is unavailable. We offer current rating of 1A to 6A.

High Frequency Profile: Offers impedance performance three times higher than that of our traditional MFB ferrite beads at 1GHz and above.

4 Line Chip Bead: Combines four single 160808 (0603) ferrite chips to reduce board space and assembly time.

Typical applications for our MEC SMD beads include automotive, communication devices, household electronic devices, energy management systems and medical devices. ROHS and REACH compliant, halogen free and can meet ISO/TS 16949 standards. Select ranges can be purchased from our distributor Farnell. Alternatively, please contact our sales team for further assistance.

• Home
• /
• Uncategorised

Kitagawa split cable ferrites prohibit cables from acting as antennas, thereby preventing radiated EMI noise. The ferrite core itself is a metallic compound which has a magnetic field. Using the ferrite suppresses the electromagnetic emissions by blocking frequency noise and thus preventing electromagnetic interference.

The split ferrites are enclosed inside a plastic housing which not only protects the ferrite core from damage, but also employs a snap-lock mechanism which provides a secure seal and allows for easy assembly and disengagement.

An advantage with using a split ferrite core is that they are easy to fit to existing builds. This provides it with a significant advantage over traditional toroidal/round ferrite cores that require encapsulating or coating to function properly, which increases likelihood of a production delay. This feature is also useful during design or prototype stage if any design change is needed.

As well as these advantages, the plastic casing used for the split ferrite series has a harness guide that enables easy harness wiring and prevents cable pinching. In addition to this some products offer a cable tie feature or offer additional mounting options.

Suited for low to high frequency ranges between 30Khz up t 1Ghz, the Kitagawa split cable ferrites are all ROHS and REACH compliant, UL 94 certified, and are manufactured to ISO 9001 and ISO 14001 standards. Please refer to our product range for further details, or alternatively contact our sales team for pricing or samples.

• Home
• /
• Uncategorised

MEC would like to introduce their customers to Kitagawa’s new EMI cable shielding sleeve the MT Series. It is a very flexible wire mesh tape made of extremely fine, braided tin-plated copper wires.

The EMI cable shield can easily be wrapped around the cable, or cables can be inserted inside the cable sleeve. The tin plating provides low impedance and resists galvanised corrosion. The copper wires themselves provide excellent conductivity.

Conforms to irregular surfaces and shapes and can be terminated for grounding purposes at the cable ends. In addition to this the cable shielding can be soldered to the application in order to provide permeant grounding.

For further information on this product, please review our website. If you require samples or pricing then please do not hesitate to contact our sales team. Engineering specs are also available upon request.

• Home
• /
• Uncategorised

MEC would like to introduce their customers to Kitagawa’s new range of EMI cable shielding sleeves. The cable shielding jackets are convenient solutions to protect cables from EMI that may be coming from outside components.

The Kitagawa ECBR-AL cable shielding profile is fitted with a hook and loop fastening mechanism that allows for easy assembly. The ECBR-AL profile can not only be used on installing pre-wired cables, but also allows for additional wires to be placed inside the sleeving. Due to the product structure, it is easy to cut the EMI cable sleeve to length without damaging the taping.

As well as the ECBR-AL series, we can also offer the ECBR-CF series, which is a lighter and more flexible version of the ECBR-AL series. The ECBR-CF cable shield jacket allows for winding across the wire.

For further product data please review our datasheet. If you require samples or pricing then please contact our sales team.

• Home
• /
• Uncategorised

MEC would like to introduce their customers to OG-453239-A, a SMD contact from Kitagawa designed specifically for engine compartment PCBs. The dimple design of the SMD contact enables it to provide sustained noise and static electricity conduction.

Automotive PCB connectors are prone to static electricity. When the OG grounding contact is placed near a connector, it creates a ground connection with the chassis to release static electricity. In addition to this by connecting a GND PCB layer with multiple grounding points on a chassis can also suppress radiation noise.

In addition to issues caused by static electricity, PCB compartments are vulnerable to damage caused by engine vibration. The OG-453239-A onboard contact has a spring structure that is designed to withstand continuous vibration, and has been tested to withstand at least 10 million vibrations. The SMD is also able to continuously operate at its maximum temperature (150C).

Further information on this product can be found on our datasheet. If you require samples or pricing, please do not hesitate to contact our sales team. Further test data, 3D drawings and engineering specs are available upon request.

• Home
• /
• Uncategorised

The electronics industry is becoming increasingly wireless, resulting in the need for wireless charging units for portable electronic devices such as smartphones. In order to meet these demands MEC have extended our product range and can now offer wireless transmitter coils which assist with powering such devices.

Our wireless charging coils can be fully customised including size, thickness, inductance and DCR in order to meet any Qi or automotive standards.

As well as our standard Qi coil range we also offer a P1 and P2 model. The P2 model utilises a plastic housing unit for the wire coils, allowing the wires to be positioned easier in the final unit. The P2 model not only has the wire housing unit, but also has a shielding housing unit for the charging coil unit itself, thus reducing labour costs. Both of these features are unique to the market.

Another benefit to our charging coils is that we can offer shorter lead times compared to competitors such as Wurth or Vishay. Therefore if you are experiencing any lead time issues we can offer alternative components to these manufacturers.

For further information on this product range please refer to our datasheet or contact our sales team.

• Home
• /
• Uncategorised

The TRMH Kitagawa series are solid ferrite cores that have been designed specifically for low frequency applications below 1MHz. They are particularly suitable for applications 100Khz-200Khz. Unlike traditionally heavy solid ferrites, the TRMH Series have rounded edges which not only reduce the weight of the ferrite, but also reduce the amount of pressure on the cable.

Special epoxy coating strengthens the ferrite core, making it less prone to breakage. The impedance level increases with the number of cable turns. Typical applications include cable harness assemblies, industrial robots, electric vehicles, medical devices and office equipment. This round ferrite core series is both ROHS and REACH compliant.

Customers can purchase small quantities or samples from our distributor Farnell. Alternatively for volume pricing or further technical data, please contact our sales team.