SCOPE：
This specification applies to the Pb Free Wound Chip Inductors for
MLSF-252018-SERIES
PRODUCT INDENTIFICATION
MLSF- 252018 - 100 K
①
②
③ ④
①
Product Code
②
Dimensions Code
③
Inductance Code
④
Tolerance Code
(1) SHAPES AND DIMENSIONS
B
C
D
A: 2.90 Max.
B: 2.54 Max.
C: 2.03 Max.
D: 1.30 Typ.
E: 0.50±0.1
F: 1.52 Typ.
G: 2.00 Typ.
mm
mm
mm
mm
mm
mm
mm
E
A
F
E
G
Terminal
Terminal wraparound : Approx.
0.1mm Typ. both ends
Equivalent circuit
No Polarity
(2) ELECTRICAL SPECIFICATIONS
SEE TABLE 1
TEST INSTRUMENTS
L,Q,SRF : HP 4291B IMPEDANCE ANALYZER (or equivalent)
RDC : CHROMA MODEL 16502 MILLIOHMMETER (or equivalent)
(3) CHARACTERISTICS
(3)-1 Operate temperature range ......
－40℃½＋125℃
(Including self temp. rise)
(3)-2 Storage temperature range ......
－40℃½＋125℃
MAG.LAYERS
MLSF-252018-SERIES
Page 1/7
TABLE 1
MAGLAYERS
PT/NO.
MLSF-252018-R22□
MLSF-252018-R27□
MLSF-252018-R33□
MLSF-252018-R39□
MLSF-252018-R47□
MLSF-252018-R56□
MLSF-252018-R62□
MLSF-252018-R68□
MLSF-252018-R75□
MLSF-252018-R82□
MLSF-252018-R91□
MLSF-252018-1R0□
MLSF-252018-1R2□
MLSF-252018-1R5□
MLSF-252018-1R8□
MLSF-252018-2R2□
MLSF-252018-2R7□
MLSF-252018-3R3□
MLSF-252018-3R9□
MLSF-252018-4R7□
MLSF-252018-5R6□
MLSF-252018-6R8□
MLSF-252018-8R2□
MLSF-252018-100□
MLSF-252018-120□
MLSF-252018-150□
MLSF-252018-180□
MLSF-252018-220□
MLSF-252018-270□
MLSF-252018-330□
MLSF-252018-390□
MLSF-252018-470□
MLSF-252018-560□
MLSF-252018-680□
MLSF-252018-820□
MLSF-252018-101□
Inductance
L(μH)
0.22
0.27
0.33
0.39
0.47
0.56
0.62
0.68
0.75
0.82
0.91
1.0
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
Percent
Tolerance
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K,M
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
J,K
Quality
Min.
27
30
30
30
30
30
30
30
30
30
30
25
25
25
25
25
25
25
25
25
25
25
25
15
15
15
15
15
15
15
15
14
14
14
14
8
L,Q Freq.
(MHz)
25
25
25
25
25
25
25
25
25
25
25
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
1.0
SRF
(MHz)Min.
750
700
600
480
470
460
460
420
420
380
400
300
280
245
240
205
187
165
144
110
88
70
57
55
52
49
48
25
23
17
15
13
10
8
8
7
DCR
(Ω) Max.
0.40
0.42
0.42
0.45
0.50
0.55
0.55
0.55
0.65
0.65
0.65
0.72
0.74
0.85
0.92
0.99
1.02
1.37
1.66
1.68
1.75
1.85
2.00
2.32
2.99
3.42
4.65
5.12
5.76
6.44
6.85
9.94
10.70
12.80
18.30
19.60
Rated DC Current
IDC1(mA)
880
900
900
900
900
900
900
880
880
840
840
800
800
780
780
760
760
740
700
660
640
640
600
600
560
480
420
420
420
400
380
340
280
260
240
200
IDC2(mA)
460
430
430
425
420
420
420
420
375
375
375
320
325
300
280
260
255
215
195
195
190
185
180
170
160
155
130
125
120
114
110
85
80
74
65
64
1st
Red
Red
Orange
Orange
Yellow
Green
Blue
Blue
Violet
Gray
White
Brown
Brown
Brown
Brown
Red
Red
Orange
Orange
Yellow
Green
Blue
Gray
Brown
Brown
Brown
Brown
Red
Red
Orange
Orange
Yellow
Green
Blue
Gray
Brown
Color Coding
2nd
Red
Violet
Orange
White
Violet
Blue
Red
Gray
Green
Red
Brown
Black
Red
Green
Gray
Red
Violet
Orange
White
Violet
Blue
Gray
Red
Black
Red
Green
Gray
Red
Violet
Orange
White
Violet
Blue
Gray
Red
Black
3rd
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Red
Red
Red
Red
Red
Red
Red
Red
Red
Red
Red
Red
Orange
Orange
Orange
Orange
Orange
Orange
Orange
Orange
Orange
Orange
Orange
Orange
Orange
※
1.
□
specify the inductance tolerance,J(±5%),K(±10%), M(±20%)
※
2. IDC1： Based on inductance change (△L/L0 : drop 10% Max.) @ambient temperature 25℃
IDC2： Based on temperature rise
(△T：20℃ TYP.)
Rated DC Current： The less value which is IDC1 or IDC2.
3. Color coding is not necessarily same position,
and Color coding non-directional printing.
MAG.LAYERS
MLSF-252018-SERIES
Page-2/7
(4) RELIABILITY TEST METHOD
MECHANICAL
Item
Solderability
Specifications
The metalized area must have 90%
minimum solder coverage.
Resistance to
soldering heat
There must be no case deformation
or change in dimensions.
Inductance must not change more
than the stated tolerance.
Test conditions
Dip pads in flux and dip in solder pot
(96.5 Sn/3.5 Ag solder) at 255°C ±5°C.
Inductors shall be reflowed onto a PC board
using 96.5 Sn/3.5 Ag solder paste.
Solder process shall be at a maximum
temperature of 260°C.
For 96.5 Sn/3.5 Ag solder paste:>217°C for
90 seconds
Vibration
There must be no case deformation
or change in dimensions.
Inductance must not change more
than the stated tolerance.
Solder specimen inductor on the test printed
circuit board.
Apply vibrations in each of the x,y and z
directions for 2 house for a total of 6 hours.
Frequency
Amplitude
High
temperature
resistance
There must be no case deformation
or change in dimensions.
Inductance must not change more
than the stated tolerance.
: 10~50 Hz
: 1.5mm
Inductors shall be subjected to temperature
125±2℃ for 500±12 hours.
Measure the test items after leaving the
inductors at room temperature and humidity
for 2 hours.
Static
Humidity
Inductors must not have a shorted
or open winding.
Inductors shall be subjected to temperature
85±2℃ and 90 to 95%RH. for ten 24-hours.
Measure the test items after leaving the
inductors at room temperature and humidity
for 2 hours.
Component
adhesion
(push test)
Inductors shall be subjected to
1.8Kg
Inductors shall be reflow soldered (255°C
±5°C for 10 seconds) to a tinned copper
substrate. A force gauge shall be applied
to the side of the component.
The device must withstand the stated force
without a failure of the termination.
MAG.LAYERS
MLSF-252018-SERIES
Page-3/7
MECHANICAL
Item
Low
temperature
storage
Specifications
There must be no case deformation
or change in dimensions.
Inductance must not change more
than the stated tolerance.
Test conditions
Inductors shall be subjected to temperature
-40±2℃ for 48±12 hours.
Measure the test items after leaving the
inductors at room temperature and humidity
for 1 to 2 hours.
Resistance to
solvent
There must be no case deformation,
change in dimensions, or
obliteration of marking.
Thermal
shock
There must be no case deformation
or change in dimensions.
Inductance must not change more
than the stated tolerance.
Inductors shall be subjected to 10 cycles
to the the following temperature cycle:
Inductors must withstand 6 minutes of
alcohol or water.
1 cycle
+125℃
30 min.
30 sec
-40℃
30 min.
Measure the test items after leaving the
inductors at room temperature and humidity
for 2 hours.
MAG.LAYERS
MLSF-252018-SERIES
Page-4/7
(5) RECOMMENDED SOLDERING CONDITIONS
(Please use this product by reflow soldering)
(5)-1 RECOMMENDED FOOTPRINT
1.02 1.27
1.02
Unit: mm
(5)-2 RECOMMENDED REFLOW PATTERN
Temperature(℃)
300
260
200
150
100
50
Time
1 to 4 min.
10 sec
more than 2 min.
Preheating
Solding
260℃
Natural Cooling
(5)-3 IRON SOLDERING
Use a solder iron of less than 30W when soldering ,do not allow the soldering
iron tip directly touch the Ferrite body outside of terminal electrode.
3 seconds max. at 260℃.
MAG.LAYERS
MLSF-252018-SERIES
Page-5/7
2.54
测试/测量
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
