Ferrites
Series No. 7000
Ferrite cores are made of iron, nickel, magnesium, zinc and other oxides and carbonates. These raw materials are compressed and molded to a specific form and then fired between 1000 to 1,500 deg. C in a special oven that controls oxygen, nitrogen, and other gases at precise temperature and timing signatures.
The firing process transforms the raw materials into a homogenous ceramic part called a ferrite. The ferrite material may be machined or originally molded to meet specific mechanical core profiles such as QP, EP, RM, E, ETD, pot, planar, toroid, clamp-on, etc…
Overview
Once oven fired, the raw mixture recipe of oxides and carbonates determines the ferrites impedance over a specific range of frequencies, ultimately determining the electromagnetic shielding ability of a cable or electronic component incorporating the ferrite in an electronic system. Therefore, the goal of using a ferrite product is simply to make a cable or electronic component less of an antenna to not generate electromagnetic or radio interference (EMI/RFI) as an unwanted radiated emission and/or to not be susceptible to external EMI/RFI.
Typical uses of ferrite products are in communications, computer, medical systems, radar systems, automotive, gaming, Industrial control, Telecom, Transportation for both military and commercial industries.
Standard Products
Flat Cable Suppression Core (MRP Type)
- Split ferrites for EMI suppression on flat cable assemblies.
- Internal floppy disk and hard disk ribbon cables.
- Internal ribbon cables between circuit boards and data connectors.
- Internal ribbon cables with 8, 16, 32 or 64-bit digital signal busses.
Flat Cable Suppression Cores (MRS Type)
- Rectangular solid ferrites for EMI suppression on flat cable assemblies.
- Internal floppy disk ribbon cables.
- Internal ribbon cables between circuit boards and data connectors.
- Internal ribbon cables with 8, 16, 32 or 64-bit digital signal busses.
Round Cable Suppression Core (MSC Type)
- Enclosures for channel-type EMI-suppressor snaps.
- Internal and external power cables.
- Internal cables between PC boards and data connectors.
Round Cable Suppression Cores (MRC Type)
- Enclosures for channel-type EMI-suppressor snaps.
- Internal and external power cables.
- Internal cables between PC boards and data connectors.
Connector Suppressor Elements (MFD Type)
- EMI suppression for connectors and dual in-line integrated circuits.
- 9, 15, 25 and 37 pin subminiature “D” connectors.
Connector Suppressor Elements (F Type)
- Specially designed for Ethernet module jacks or phone jacks.
Toroidal Cores (MRT Type)
- T-type ring cores for coupling transformers and balancing coils, fixed coils and filter coils.
Sleeve Cores (MRI Type)
- Produced for assembling cable wire and making MATV CATV.
- Internal and external computer data and power cables.
Wound Chip Beads (MBC Type)
- For computer products (mother board, hard disk, TV card, etc.); communication products (pager, cordless phone, etc.); modems, OA products, power suppliers, etc.
- Counter-measures for complying with CE, FCC, or VCCI radiated emissions.
Multi-line Suppressor Beads (SH Type)
- Filtering of power input pins of oscillators or logic devices using high speed docks.
- Filtering of low-frequency input/output signal entering/exiting shielded enclosures.
- High frequency filtering of medium speed docks and video signals.
- Preventing oscillation in high-frequency amplifiers.
Wide Band Choke (7R61 Series)
- Mainly used in PC boards to filter EMI from the outside.
- High-performance medium-current DC power and signal filtering.
Rod Cores (R Type)
- For coils which do not require adjustments as well as for magnetic shielding.
Balun Cores (RID, RHH, R4H Types)
- For wide-band transformers that provide balance to unbalanced transformers. Also used in the input circuits for TV and FM tuners, and in CATV, MATV networks and installations.
Multi-layer Chip Beads (FBM Type)
- EMI suppression for various electric equipment by the addition of impedance to the circuit. Particularly effective with unstable grounding.
- High-frequency EMI prevention of computers, printers, VCRs, TVs and portable telephones.
Multi-layer Chip Inductors (FLM Type)
- EMI suppression for various electric equipment by the addition of impedance to the circuit. Suitable for all computer-related products. For composing different LC filters with capacitors to modify signal wave-form, such as TV-out in a notebook computer or audio-out in a CD-ROM circuit.
Wound Chip Inductors (FLC Type)
- Used for computer products (hard disks, floppy disks, etc.), communication products (cordless phones, etc.), modems, OA products, TV sets, VCRs, etc.
Counter-measures for complying with CE, FCC, VDE or VCCI radiated emissions.
- High resistance to heat and humidity as well as resistance to mechanical shocks and pressure.
- Accurate dimensions for automatic surface mounting.
Common Mode Choke & SMD Power Choke
- Used for prevention of common mode noise on signals and power lines for computer-related products.
- High impedance for common mode noise and low impedance for differential mode signal.
- Large rated current available.
- Wide-band or sharp-type impedance curve available.
- SMD or DIP types available.
Custom Product
Product Data Sheet
Technical Information
| Property | Initial Permeability | Curie Temperature | Specific Gravity | Loss Factor at Frequency | Temp. Coef. of Initial Permiability 20-70˚C |
| Unit | k | ˚C | g/cm3 | 10-6MHz | 10-6˚C |
| Symbol | µi | Tc | d | 1/µiQ | aµir |
| A6 | 1800±25% | >100 | 4.7 | 75 (0.5) | 0-3 |
| K5 | 850±25% | >130 | 4.8 | 260 (1.0) | 3-6 |
| K5B | 700±25% | >140 | 4.8 | 250 (1.0) | 0-7 |
| K2A | 350±25% | >150 | 4.7 | 60 (2.0) | 15-40 |
| K3A | 300±25% | >150 | 4.7 | 100 (2.0) | 4-12 |
| A17 | 300±25% | >300 | 4.6 | 90 (5.0) | 0-7 |
| A78 | 300±25% | >150 | 4.7 | 60 (2.0) | 15-40 |
| K1C | 250±25% | >200 | 4.7 | 110 (2.0) | 3-10 |
| A8 | 200±25% | >250 | 4.7 | 35 (7.0) | 19-32 |
| A3 | 100±25% | >300 | 4.4 | 160 (2.0) | 55-130 |
| K8B | 55±25% | >300 | 4.7 | 400 (2.0) | 5.15 |