• All specifications are subject to change without notice.
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003-03 / 20050524 / e93_hf.fm
EMC Components
HF Series
Common Mode Choke Coils(Line Filters) for AC Power Supply
Closed Magnetic Circuit Core Type
TDK common mode choke coils(line filters) are used in a wide
range of prevention of electromagnetic interference(EMI) and radio
frequency interference(RFI) from power supply lines and for pre-
vention of multifunctioning of products such as measuring equip-
ment and system equipment.
RATINGS
∗
Except particular items.
• Measuring equipment of inductance value:
LCR meter(HP4261A, HP4263B or equivalent)
FEATURES
• Wide range of selection.
• High impedance at applicable frequency.
• High self-resonant frequency.
PRODUCT IDENTIFICATION
(1)Core shape
UF: U-type core
TF: Toroidal core
HF: Square shaped closed magnetic circuit core type
Double-square shaped closed magnetic circuit core type
(2)Dimensional code(Length
×
Height)
(3)External shape code
(4)TDK’s internal code
(5)Inductance value
Example) 602: 60µH
×
10
2
=6mH
(6)Rated current value
Example) 2R5: 2.5A
(7)Product management number
SELECTION CHART
∗
Handling power=(Inductance value)
×
(Current)
2
. It is possible to design within the range below this value.
[Example] The coil for 2A can make even the inductance of 2.5mH or less a product for handling power 10.
Item Standard value Conditions
Rated voltage(V) 80 to 280
∗
Dielectric withstanding
voltage(V)
2000
Between each winding for
1 minute
Insulation resistance
(M
Ω
)
100min.
Between each winding for
1 minute, Edc 500V
Temperature rise(°C) 45max.
∗
With line resistance
Operating temperature
range(°C)
–20 to +120
Including self-temperature
rise
Safety standard
Japan Electric/Electronic Products Control Law,
UL, CSA and IEC conformed(The safety
standard is not acquired with the unit only.)
UF V – Y R – 01
(1) (2) (3) (4) (5) (6) (7)
Series Configuration Type
Inductance value
(mH)min.
Rated current
(A)
Handling power
∗
L
×
I
2
(mH
×
A
2
)
Weight
(g)typ.
Minimum package quantity
(pieces/box)
HF
Closed magnetic circuit
core types
HF2018R 1 to 33 0.3 to 2 4.5 10 840
HF2022R 1 to 33 0.3 to 2 4.5 10 840
HF2024 0.6 to 12 0.8 to 3 7.6 10 800
HF2422 2.4 to 68 0.4 to 2.5 15 19.5 540
HF2430 2.4 to 68 0.4 to 2.5 15 19.5 400
HF2826 1.8 to 35 1 to 4 35 28 480
HF2836 1.8 to 35 1 to 4 35 30 400
HF3545 4.7 to 33 1.5 to 4 75 65 140
