FERRITE CHIP EMI COMPONENTS
FERRITE CHIP EMI FILTERS ACH SERIES (High DC current type)
FEATURES
SHAPES AND DIMENSIONS
This ACH series is a high current version of the T-type
EMI filter.
L
1.5A (ACH3218) and 2A (ACH4518C) current handling
capability are available.
Due to the greatly lower DC resistance, the ACH series
perfectly minimizes the power consumption of portable
equipment.
ACH3218
20V 1.5A max. 18 different characteristics
ACH4518C
0.35
Marking
D
0.35
Insulation resin
50V 2.0A max. 10 different characteristics
APPLICATION
EMC control for high current lines like battery lines and
AC-adapter lines.
Ferrite Ground
termination
Terminations
Perfect for DC power circuits with stabilized ground.
unit : mm
Type
L
W
T
D
ACH3218
ACH4518C 4.5±0.4
3.2±0.3
1.8±0.2 2.5±0.25 0.6
1.8±0.2 3.2±0.3 1.0
EQUIVALENT CIRCUIT
No directionality
RECOMMENDED PATTERNS
ON PC BOARD
GND
PRODUCT IDENTIFICATION
ACH3218 - 223 - T
c
(1)
(2) (3)
a
b
a
(1) Series, Case size
unit : mm
(2) Capacitance
223 : 22000pF
Type
ACH3218
ACH4518C
a
1.4
1.75
b
2.2
3.5
c
0.6
1.0
(3) Packaging style T : Taping Ø180mm reel
TL : Taping Ø330mm reel
B : Bulk
These products are only for reflow soldering.
MEASURING CIRCUIT
ACH Series
S.G.
50Ω
L.M.
CHIP-FILTERS004 1998.1
6