SCOPE
：
This specification applies to the high current type Axial Leaded Inductor
(1) SHAPES AND DIMENSIONS
(2) ELECTRICAL SPECIFICATIONS
(3) CHARACTERISTICS
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
A: 19.0 Max. mm
B: 18.5 Max. mm
C: 15.0±2.0 mm
D: 10.0±1.0 mm
E: φ1.0±0.1 mm
F: 3.0 Max. mm
SEE TABLE 1
TEST INSTRUMENTS
L : HP 4284A PRECISION LCR METER (or equivalent)
RDC : CHROMA MODEL 16502 MILLIOHMMETER (or equivalent)
(3)-1 Ambient temperature ……......... ＋60℃ Max.
(3)-2 Operate temperature range ...... －40℃～＋125℃
(Including self temp. rise)
(3)-3 Storage temperature range ...... －40℃～＋125℃
MAG.LAYERS
MCD-1618-SERIES Page 1/4
TABLE 1
PT/NO.
MCD-1618-220□
Inductance Percent Test Resistance
L(μH) Tolerance Frequency RDC(Ω)Max. IDC1(A) IDC2(A)
22 M 100kHz/0.25V 31 m 14.0 5.5
Rated DC CurrentMAGLAYERS
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□
27 M 100kHz/0.25V 35 m 13.5 5.4
33 M 100kHz/0.25V 37 m 13.0 5.3
39 M 100kHz/0.25V 52 m 12.5 5.0
47 M 100kHz/0.25V 56 m 11.5 4.8
56 M 100kHz/0.25V 58 m 11.0 4.6
68 M 100kHz/0.25V 62 m 9.2 4.4
82 M 100kHz/0.25V 76 m 8.7 4.3
100 K,M 100kHz/0.25V 0.108 7.7 4.0
120 K,M 100kHz/0.25V 0.132 7.0 3.8
150 K,M 100kHz/0.25V 0.152 6.5 3.6
180 K,M 100kHz/0.25V 0.163 6.0 3.4
220 K,M 100kHz/0.25V 0.216 5.5 2.8
270 K,M 100kHz/0.25V 0.253 5.0 2.7
330 K,M 100kHz/0.25V 0.270 4.4 2.6
390 K,M 100kHz/0.25V 0.341 3.9 2.1
470 K,M 100kHz/0.25V 0.390 3.6 1.9
560 K,M 100kHz/0.25V 0.425 3.3 1.8
MCD-1618-681□
MCD-1618-821□
MCD-1618-102□
※ □ 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.
680 K,M 100kHz/0.25V 0.565 2.9 1.6
820 K,M 100kHz/0.25V 0.700 2.7 1.4
1000 K,M 100kHz/0.25V 0.881 2.5 1.2
MAG.LAYERS
MCD-1618-SERIES Page-2/4
(4) RELIABILITY TEST METHOD
MECHANICAL
NO. ITEMS
1 Solderability test
2 lead tensile 1.0 Kg MIN. The lead of product is pulled with a load of
strength test 1.0kg mininum until lead breakdown. The tensile
More than 90% of the
termnial electrode
should be covered
with solder.
Dipping: 245 ± 5 ℃, 3 ± 1 seconds
force shall be recorded.
CONDITIONSSPECIFICATIONS
3 Vibration test
4 Soldering heat Visual:OK The leads of product are dipped into a solder pot
resistance test Circuit:OK
△L/L≦±7%
Visual:OK
The product is fixed ento the vibration with
amplitude of 1.52m/m at a frequency of 10～55Hz
sweeping for lmin. The vibration is done at X,Y,
Z direction respectively for 2 houes, totally 6
hours.
of 260±5℃ for a duration of 10±1sec. Nothing
particular on visual and open circuitry as a
result of ore testing.
ENVIRONMENTAL
NO. ITEMS
1 Humidity
endurance
test
2 High temp
endurance test for 72 hours. Measurement is done after recovery
SPECIFICATIONS CONDITIONS
△L/L≦±5% The product is placed in a chamber of 40±2℃,
90～95%RH for 96 hours. Measurement is done
after the reaovery of 4～24 hours.
△L/L≦±5% The product is placed in a chamber of 80±2℃,
of 4～24 hours.
3 Low temp test
4 Thermal shock
test
MAG.LAYERS
△L/L≦±5% The product is placed in a chamber of -40±2℃,
for 96 hours. Measurement is done after
recovery of 4～24 hours.
△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 4～24 hours from the
completion of testing.
MCD-1618-SERIES
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(5) PACKAGE SPECIFICATION (mm)
Page-5/5
MAG.LAYERS
MCD-1618-SERIES
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