MMZ Series Brief Datasheet by TDK Corporation

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Ferrite Chip Beads—MMZ Series
For general signal line use in consumer & automotive applications
Applications
Consumer Automotive
 Mobile Devices, including Smartphone and
Tablet PCs  ECU’s, Powertrain, and Body Control
 Recorders, Household Appliances, STBs,
Industrial Equipment, and Smart Meters  Car Multimedia (telematics)
TDK’s MMZ Series ferrite chip beads are used to suppress noise in both signal and power supply circuits. They are effective at reducing noise simply by being
placed into the circuit in series. Multilayer chip beads consist of ferrite material and a conductive paste layered together. The equivalent circuit diagram of a chip
bead consists of a reactance component, X, and a resistive component, R. The combined impedance of X and R is denoted as impedance Z. The static
characteristics of a chip bead are typically described as the impedance value Z at a frequency of 100MHz. While several different chip beads could have the
same impedance value at 100MHz, it is important to look at their individual frequency characteristics to determine which bead will work best for the circuit within
the required frequency range. TDK offers up to eight material types which provide various frequency characteristics for MMZ series chip beads in a variety of
case sizes, each suited to different applications. Availability of materials varies with case size.
Consumer Datasheets: 0402 0603 1005 1608 2012
Features
 Noise reduction solution for general signal line
 Various frequency characteristics with 8 materials of different features
 Countermeasures from general signals to high-speed signals
 Conforms to RoHS directive, halogen free, & compatible with lead-free soldering
 Standard operating temperature range of –55°C to +125°C
 Storage temperature range of –55°C to 125°C (after PC board mounting)
Consumer Automotive
 Case sizes: 1005, 1608, & 2012
 AEC-Q200 compliant
 Case sizes: 0402, 0603, 1005, 1608, & 2012
Equivalent Circuit Diagram of a Chip Bead
Internal Structure Diagrams of a Multilayer Chip Bead
Standard Ferrite Bead (Lengthwise Structure)
Automotive Datasheets: 1005 1608 2012
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B material Fast Digital Signals
S material Signal line applications in which the
blocking region is near 100MHz
A material High-Impedance
D material Low Insertion Loss at Low Frequency
& High Impedance at High Frequency
R material Wide Frequency &
Good Waveform Integrity
Y material High Frequency (100MHz & Above)
Q material High-Band Applications
(100MHz & Above)
This material is perfectly suited for fast digital signals. By equalizing R and X
components that beads possess at a frequency of 5MHz, it is able to suppress
overshooting, undershooting, and ringing of fast digital signals.
Standard type that features impedance characteristics similar to those of a typical
ferrite core. For signal line applications in which the blocking region is near
100MHz. Impedance values selected for effectiveness at 40 to 300MHz.
For wide frequency applications calling for broad impedance characteristics. For
digital signal line applications for requiring good waveform integrity. Impedance
values selected for effectiveness at 10 to 200MHz.
High frequency range type intended for the 100MHz region and above. For single
line applications in which the signal frequency is far from the cutoff frequency.
Impedance values selected for effectiveness at 80 to 400MHz.
This high-impedance product is based on the impedance frequency characteristics of
our Y-material. The product offers excellent impedance characteristics, which is
greater than 2500, in the vicinity of 100MHz range (MMZ1608A252B).
For high-band applications designed for 100MHz and above. Impedance values
selected for effectiveness at 100 to 800MHz.
For applications calling for low insertion loss at low frequency and sharply
increasing impedance at high frequencies. Designed for high impedance at
high frequencies (300MHz to 1GHz) for signal line applications.
This new product inherits the characteristic of our D-material, namely its sharp
impedance rise time, and its impedance peak frequency has been shifted higher
into range. The product offers excellent noise suppression from 600MHz to
as high as in the GHz range.
MMZ Series Material Selection Guide
F material High Impedance Peak Frequency
(600MHz & Above)

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