AMORPHOUS CHOKE COILS
AMORPHOUS CHOKE COILS
Amorphous metal and NIPPON CHEMI-CON Amorphous Choke Coil
The amorphous metal has non cystalline structure generated by cooling molten metal rap-
idly. Due to the amorphous structure, the amorphous metal has excellent magnetic, me-
chanical, and chemical features in comparison with conventional metallic substances.
NIPPON CHEMI-CON started developing amorphous components for electronic and elec-
tric equipment by making full use of the metarial and process technologies at its early
stages and has continued the synthetic research and development to optimally match the
amorphous choke coils with the material features and their applications through a variety of
characteristics. NIPPON CHEMI-CON will help the customers design smaller and higher
performance products by supplying excellent amorphous choke coils through the sophisti-
cated production technology and manufacturing know-how.
?General Specification of Toroidal Coil
Items
Rated value
*1 Temperature on the coil surface including the temperature rise in installation. Never use the coil
at a temperature exceeding the rated temperature range.
*2 Recommended range. When infra-acoustic frequency component is impressed, a beat sound
some times occur.
*3 The temperature rise on the coil surface at the rated d.c. current.
*4 The incombustibility varies depending on the rated current. LCR meter, 10kHz.
*5 The housing case is made of FRPBT
Operating temperature range*1
Storage temperature range
Operating humidity range
Storage humidity range
Operating frequency range*2
Temperature rise *3
-25 to 130C
-25 to 130C
20 to 95%RH
20 to 80%RH
20kHz to 500kHz
40deg. or less
1A and more
10 to 1900mH
Rating current range
Rating inductance*4
(CM series)
Insulation type
Type B (130C)
Incombustibility *5
UL 94 V-0
Note carefully that the temperature of the core may exceed the operating temperature range de-
pending on the circumference condition even if the coil is used in the specification ranges de-
scribed above.
?DIMENSIONS
Side view
D2
D2
D2
W
W
Bottom of coil
Bottom view
*Start and end of wire
*
Pedestal bottom
D1
* Start and end of wire
Maximum outer diameter *1 : D2
Maximum width *1 : D1
Maximum width : W
Maximum outer diameter *1 : D1, D2
Maximum width : W
Maximum outer diameter : D1(Vertical), D2(Horizontal)
Maximum width : W
Maximum outer diameter : D1(Vertical), D2(Horizontal)
Maximum width : W
Total lead length *1 : L=15mm(+3mm, -3mm)
Soldering boundary *1 : a=1.5mmMAX
Total lead length *2 : L=13mm(+2mm, -2mm)
Soldering boundary *2 : a=0mm MAX
Total lead length *2 : L=13mm(+2mm, -2mm)
Soldering boundary *2 : a=0mm MAX
Total lead length : L=30mm(+3mm, -3mm)
Soldering boundary : a=1.5mmMAX
*1 Indicates the maximum dimersion of coil or stand.
*1 Indicates the maximum dimersion of coil or stand.
*2 The bottom of the core or coil ( ) is defined
as base surface.
*1 The bottom of the core or coil ( ) is defined *2 The bottom of the core or coil ( ) is defined
as base surface.
as base surface.
*The bottom of the core or coil ( ) is defined
as base surface.
?Notes on use
@Because the insulating material of type B is used, the operating temperature of the coil should be less than 130C.
@Note that the lead wire may not be subject to excess force and also may not be bent repeatedly because the wire is made of
copper.
@Never make the coil hit on a hard and/or sharp substance. If so, the coating of the coils may be damaged to ruin the
performace of the coil.
@Contact NIPPON CHEMI-CON for how to clean the substrate on which the coil is mounted.
@When infra-acoustic frequency component is impressed, a beat sound some times occur.
(1/2)
CAT. No. E1008E
CHEMI-CON [ UNITED CHEMI-CON, INC. ]
