SCOPE：
This specification applies to the high current type Axial Leaded Inductor
for MCD-1618-SERIES
PRODUCT INDENTIFICATION
MDC- 1618 - 271 K
①
②
③ ④
①
Product Code
②
Dimensions Code
③
Inductance Code
④
Tolerance Code
(1) SHAPES AND DIMENSIONS
A: 19.0 Max.
B: 18.5 Max.
C: 15.0±2.0
D: 10.0±1.0
E:
φ1.0±0.1
F: 3.0 Max.
mm
mm
mm
mm
mm
mm
(2) ELECTRICAL SPECIFICATIONS
SEE TABLE 1
TEST INSTRUMENTS
L
: HP 4284A PRECISION LCR METER (or equivalent)
RDC : CHROMA MODEL 16502 MILLIOHMMETER (or equivalent)
(3) CHARACTERISTICS
(3)-1 Ambient temperature
…….........
＋60℃
Max.
(3)-2 Operate temperature range ......
－40℃½＋125℃
(Including self temp. rise)
(3)-3 Storage temperature range ......
－40℃½＋125℃
MAG.LAYERS
MCD-1618-SERIES
Page 1/4
TABLE 1
MAGLAYERS
PT/NO.
MCD-1618-220□
MCD-1618-270□
MCD-1618-330□
MCD-1618-390□
MCD-1618-470□
MCD-1618-560□
MCD-1618-680□
MCD-1618-820□
MCD-1618-101□
MCD-1618-121□
MCD-1618-151□
MCD-1618-181□
MCD-1618-221□
MCD-1618-271□
MCD-1618-331□
MCD-1618-391□
MCD-1618-471□
MCD-1618-561□
MCD-1618-681□
MCD-1618-821□
MCD-1618-102□
Inductance
L(μH)
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
560
680
820
1000
Percent
Tolerance
M
M
M
M
M
M
M
M
K,M
K,M
K,M
K,M
K,M
K,M
K,M
K,M
K,M
K,M
K,M
K,M
K,M
Test
Frequency
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
100kHz/0.25V
Resistance
RDC(Ω)Max.
31 m
35 m
37 m
52 m
56 m
58 m
62 m
76 m
0.108
0.132
0.152
0.163
0.216
0.253
0.270
0.341
0.390
0.425
0.565
0.700
0.881
Rated DC Current
IDC1(A)
14.0
13.5
13.0
12.5
11.5
11.0
9.2
8.7
7.7
7.0
6.5
6.0
5.5
5.0
4.4
3.9
3.6
3.3
2.9
2.7
2.5
IDC2(A)
5.5
5.4
5.3
5.0
4.8
4.6
4.4
4.3
4.0
3.8
3.6
3.4
2.8
2.7
2.6
2.1
1.9
1.8
1.6
1.4
1.2
※ □
specify the inductance tolerance,K(±10%),M(±20%)
※
IDC1： Based on inductance change (△L/Lo：
≦
drop 10% Max.) @ ambient temp. 25℃
IDC2： Based on temperature rise (△T： 40℃ Typ.)
Rated DC Current： The less value which is IDC1 or IDC2.
M A G .L A Y E R S
MCD-1618-SERIES
Page-2/4
(4) RELIABILITY TEST METHOD
MECHANICAL
NO.
1
ITEMS
Solderability test
SPECIFICATIONS
CONDITIONS
More than 90% of the Dipping: 245
±
5
℃,
3
±
1 seconds
termnial electrode
should be covered
with solder.
1.0 Kg MIN.
The lead of product is pulled with a load of
1.0kg mininum until lead breakdown. The tensile
force shall be recorded.
2
lead tensile
strength test
3
Vibration test
△L/L≦±7%
Visual:OK
The product is fixed ento the vibration with
amplitude of 1.52m/m at a frequency of 10½55Hz
sweeping for lmin. The vibration is done at X,Y,
Z direction respectively for 2 houes, totally 6
hours.
4
Soldering heat
resistance test
Visual:OK
Circuit:OK
The leads of product are dipped into a solder pot
of 260±5℃ for a duration of 10±1sec. Nothing
particular on visual and open circuitry as a
result of ore testing.
ENVIRONMENTAL
NO.
1
ITEMS
Humidity
endurance
test
2
High temp
endurance test
△L/L≦±5%
SPECIFICATIONS
△L/L≦±5%
CONDITIONS
The product is placed in a chamber of 40±2℃,
90½95%RH for 96 hours. Measurement is done
after the reaovery of 4½24 hours.
The product is placed in a chamber of 80±2℃,
for 72 hours. Measurement is done after recovery
of 4½24 hours.
3
Low temp test
△L/L≦±5%
The product is placed in a chamber of -40±2℃,
for 96 hours. Measurement is done after
recovery of 4½24 hours.
4
Thermal shock
test
△L/L≦±5%
The specimens are placed in a chamber and the
temp is then lowered to -20±2℃ for one hour.
The temp will raised to +80±2℃ for one hour.
This constitues one cycle. Ten cycles of such
testing shall be completed. Measurement is made
after recovery for 4½24 hours from the
completion of testing.
M AG .LAYER S
MCD-1618-SERIES
Page-3/4
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