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Dual Winding Inductors

Our dual winding inductors (1:1 turns ratio) can be used as either a single inductor or in coupled inductor/transformer applications. The shielded dual winding inductors utilizes a ferrite drum core that offers space saving, cost effectiveness and a high K factor.

The two windings can be connected in series or parallel, offering a broad range of inductance and current ratings. The common mode choke can also be used for different turn ratios, effectively acting like a transformer. The isolation between windings could be up to 200 Vac, and the maximum operating temperature is up to +125°C.

MEC can provide competitive pricing compared to other passives supplier on the market. Our standard production lead time for semi-shielded power inductors is 6-8 weeks, however we can also offer an expedite service that offers 3-4 weeks lead time. As well as our standard product range we can also customise specifications to individual applications. Please contact our sales team for further information.

Features:
– Magnetic shielded construction
– High efficiency and high reliability
– Five profile sizes available
– Inductance Range: 0.47uh – 1000uh
– Saturation Current Range: 0.18A – 33A

Applications:
– IPC server
– Portable devices
– DC-DC converter
– VRM inductor for CPU and DDR power supplies
– Buck, boost noise filter

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Semi-Shielded Inductors

Our semi-shielded power inductors are designed to enhance your product by delivering higher efficiency and meeting rigorous standards of modern electronics. With features such as higher saturation current and lower DC resistance, our semi-shielded power inductors provide excellent performance and reliability in high performance applications.

Built to endure the challenges of both consumer and industrial environments, our SMD inductors offer long-term reliability and durability. The SSI3010 profile in particular is engineered for superior mechanical stability. This makes it ideal for vibration prone applications such as automotive electronics and industrial equipment. To guarantee consistent quality, all inductors undergo a single reflow process and are 100% inspected for layer insulation, inductance and DC resistance.

The semi-shielded design offers an optimal balance between EMI suppression and compact size. This allows for effective EMI reduction without the need of a fully shielded component. This makes the semi-shielded inductor an ideal solution for applications where both high performance and space efficiency are crucial.

Key Features:
– Suited for wide range of applications: Due a combination of size, cost and performance advantages, semi-shielded inductors are suitable for a wide range of applications. This makes them a versatile choice for designers.

– Versatility in applications: The compact size strikes a balance between compactness and performance.

– Enhanced mechanical strength: Slightly larger form factor provides better mechanical stability and durability.

– Cost-effective solution: Semi-shielded inductors are less expensive than fully shielded versions. This provides a cost-effective solution for moderate EMI reduction needs.

Applications:
– Wearable devices
– Bluetooth and Wi-Fi modules
– Compact power supplies
– LED drivers
– Automotive keyless entry systems

MEC can provide competitive pricing compared to other passives supplier on the market. Our standard production lead time for semi-shielded power inductors is 6-8 weeks, however we can also offer an expedite service that offers 3-4 weeks lead time. As well as our standard product range we can also customise specifications to individual applications. Please contact our sales team for further information.

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Shielded Wire Wound Inductors – SPI6 Series

The SPI6 series are SMD shielded wire wound inductors with excellent Isat current rating and efficiency. These shielded inductors offer 15% higher Isat current rating compared to same sized inductors with similar DC resistance on the market. As well as this characteristic, a key feature of the SPI6 series is its strong structure.

The SPI6 wire wound inductors have a copper base and wire that does not contact with the soldering paste directly. Even at high inductance levels, the inductor can still withstand impact shock and is particularly suitable for space saving applications.

The winding package is covered by the ring core and is able to isolate the leakage flux from the inductor itself. This keeps magnetic radiation emissions low. MEC understand the importance of product miniaturisation, and a key in developing this technology is continuous improvement on ferrite core and winding technology.

MEC can provide competitive pricing compared to other passives suppliers in the electronics industry. Our standard production lead time for shielded power inductors is 6-8 weeks, however we can also offer an expedite service that offers 3-4 weeks lead time. As well as our standard products range we can also customise specifications to individual applications. Please contact our sales team for further information.

Features:
– Magnetically shielded low DC resistance
– Low profile, small footprint
– Size: 6.9×6.5×3.0mm or 6.9×6.5×5.0mm
– Inductance Range: 0.19uh – 1000uh
– Saturated Current Range: 0.14A – 100A

Applications:
– Converter inductors
– Notebooks
– LCDs
– Game machines
– DSC/DVC

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Shielded Power Inductors – SP1707 Series

There is continuous demand for shielded power inductors to both be compact in size and also be power efficient. Our SP1707 power inductors meet this requirement. The SP1707 profile is a high efficiency fixed inductor with both high saturate current limit and high permeability.

The shielded construction of the power inductor provides it with low buzz noise and allows it to be placed near sensitive circuits. Due to this advantage, the SMD high temperature moulded inductor provides excellent performance and can handle high saturate current. It also has outstanding performance at ambient temperature.

The SP1707 shielded power inductor series is ROHS and REACH compliant and also halogen and lead free. Compatible with vapour phase and reflow soldering.

MEC can provide competitive pricing compared to other passives suppliers in the electronics industry. Our standard production lead time for shielded power inductors is 6-8 weeks, however we can also offer and expedite service that offers 3-4 weeks lead time. As well as our standard product range we can also customise specifications to individual applications. Please contact our sales team for further information.

Features:
– Magnetically shielded low DC resistance
– Ultra-low buzz noise due to composite construction
– Handles high transient current spikes without saturation
– Size: 17.45×17.15×7.0mm
– Inductance Range: 0.47uh – 820uh
– Saturated Current Range: 1.27A – 40A

Applications:
– Power converter
– Notebooks
– IOT control boards
– Graphics cards
– Battery power systems (BPS)
– Mother boards

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Power Cube Inductors

Our power cube inductors contain a wire wound core that is covered with a magnetically shielded case. The core material itself has low core lose and possesses excellent temperature stability. Compared to standard shielded power inductors, our cube inductors have lower DC resistance and higher rated current (Irms).

The simple constructor of the wire wound inductor provide it with superior reliability. As the internal wire does not undergo any moulding, there is no danger of this being damaged during the production process.

The cube power inductors minimise magnetic flux leakage and audible buzzing, even in high density mounting. The shielded inductor case utilises high pressure to keep gaps between metal particles as small as possible. This restricts any vibration in the wire wounding and virtually eliminates magnetic flux.

MEC can provide competitive pricing compared to other passives suppliers in the electronics industry. Our standard production lead time for the power cube inductors, We can also offer an expedite service that offers a 3-4 week lead time. As well as our standard product range, we can also customise specifications to individual applications. Please contact our sales team for further information.

Features:
– Magnetic shielded core
– High efficiency, excellent performance
– Low EMI emissions
– Sizes: 12.1×11.4×9.5mm or 11.3×10.4×9.7mm
– Inductance Range: 0.22uh – 10uh
– Saturated Current Range: – 8.0A – 60.0A

Applications
– Power converter
– Notebook
– IOT control boards
– Graphics cards
– Battery power systems (BPS)
– Mother boards

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EMI Conductive Film

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.

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Wire Mesh Gaskets

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.

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Spring Finger Contacts

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.

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SMD Ferrite Beads

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.

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Kitagawa Split Ferrite Cores

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.