Multilayer Ferrite Chip Beads - Z-SMS/Z-PMS Series
Z-SMS Features:
Z-SMS Applications:
• Internal silver printed layer creates a closed circuit which acts as a magnetic
shield to minimize heat generation and crosstalk
• High frequency noise countermeasure in personal computers, digital cameras
and other information system products. For use on digital product clock lines
and general signal lines.
• Radiated noise suppression in computer or printer interfaces harness connectors.
• Noise suppression in video and other AV products
• Prevents interference between circuits in cellular phones (PHS, PDC, etc)
• Due to the closed internal circuit which acts as a magnetic shield, the “F”
material is extremely effective as a noise filter on LSI power supplies where
downsizing of components is needed.
• No need for grounding provides greater circuit design flexibility
• Several material types and a broad range of impedance values provide noise
countermeasures for various applications (10th digit in part number)
“A” Suppresses the XL component. Helps stop the reduction of the wave-form
integrity (digital wave-form overshoot, etc)
“B” Increases the Z characteristics sharply above 20MHz and is applicable for
radiated noise in the 100MHz-300MHz range. Especially effective on video
signal lines.
“C” Designed as a noise countermeasure for 200MHz-500MHz range where the
rise of the Z component is in the high frequency area.
“D” Intended for noise suppression around 200MHz. Effectively increase
attenuation
“E” The best material in the Z-SMS Series to suppress the XL component and stop
the reduction of the wave-form integrity while maintaining attenuation in the
high frequency area.
Z-PMS Applications:
• High frequency noise countermeasures on the DC power supply line in
personal computers and other information system products
• Noise suppression in USB and IEEE1294 interface
• Prevents interference between circuits in mobile systems (PDC, PHS, PDA)
Operating Temperature:
“F” Reduced DC resistance version for noise countermeasures around LSI power
supplies
• Z-SMS: -55ºC to +125ºC (includes self-generated heat)
• Z-PMS: -55ºC to +85ºC (includes self-generated heat)
Z-PMS Features:
• Low Rdc values reduce power dissipation and extend battery life
• No need for grounding provides greater circuit design flexibility
Part Numbering Table
C
Z
0402
121
B
SMS
T
Ferrite Bead
Case Size
Packaging Code
T = Tape & Reel
0201
0603
0402
0805
Type
SMS = Standard for signal lines
PMS = For power supply lines
Specification
C = Commercial
Material
A,B,C,D,E,F - Contact KEMET
for materials characteristics
Impedance
Examples: 150 = 15Ω; 101 = 100Ω; 102 = 1000Ω
Dimension Table in millimeters (inches)
W
L
T
E
EIA
Case
Size
Metric
Dim.
Code
L
W
T
Thickness Maximum
E
Length
(inches)
Width
(inches)
(inches)
(inches)
1.6 ±0.2
(0.063 ±0.008)
0.8 ±0.2
(0.031 ±0.008)
0.8 ±0.2
(0.031 ±0.008)
0.3 ±0.2
(0.012 ±0.008)
0201
0402
0603
0805
0603
1005
1608
2125
1.00 ±0.05
(0.039 ±0.002)
0.50 ±0.05
(0.020 ±0.002)
0.50 ±0.05
(0.020 ±0.002)
0.25 ±0.10
(0.010 ±0.004)
1.6 ±0.15
(0.063 ±0.006)
0.8 ±0.15
(0.031 ±0.006)
0.8 ±0.15
(0.031 ±0.006)
0.3 ±0.2
(0.012 ±0.008)
2.0 +0.3/-.01
(0.079 +0.012/-0.004)
1.25 ±0.2
(0.049 ±0.008)
0.85 ±0.2
(0.033 ±0.008)
0.5 ±0.3
(0.020 ±0.012)
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