Delta Electronics SILM4018H User Manual
SMT Power Inductor
SILM4018H Type
Features
RoHS compliant.
Low profile (1.8mm max. height) SMD type.
Magnetically shielded, suitable for high density mounting.
Self-leads, suitable for high density mounting.
High energy storage and low DCR.
Provided with embossed carrier tape packing.
Idel for power source circuits, DC-DC converter, DC-AC inverters
inductor applications.
In addition to the standard versions shown here, customized inductors
are available to meet your exact requirements.
Mechanical Dimension:
B
A
Electrical Characteristics:
PART NO.
SILM4018H - 1R7 1.7 51 2.00 2.40
SILM4018H - 2R2 2.2 59 1.75 2.30
SILM4018H - 3R3 3.3 85 1.40 1.80
SILM4018H - 4R7 4.7 116 1.20 1.50
SILM4018H - 6R8 6.8 180 1.00 1.10
SILM4018H - 100 10.0 230 0.84 1.00
SILM4018H - 150 15.0 410 0.65 0.75
SILM4018H - 220 22.0 610 0.55 0.52
SILM4018H - 330 33.0 870 0.46 0.41
C
F
o
25 : 100KHz, 0.1V
C
1
L
(uH)
E
D
( ) MAX
m
DCR
RECOMMENDED PAD PATTERNS
.4
5
2.2
1.7
2
Isat
(Adc)
UNIT:mm/inch
A = 4.0 / 0.157 Max.
B = 4.0 / 0.157 Max.
C = 1.8 / 0.071 Max.
D = 4.8 / 0.189 Max.
E = 2.9 / 0.114
F = 1.0 / 0.039
3
Ir
(Adc)
1. Tolerance of inductance: 30% for 1.7~6.8uH; 20% for 10~33uH.
2. Isat is the DC current which cause the inductance drop 35% typical of its nominal inductance without current.
3. Ir is the DC current which cause the surface temperature of the part increase less than
4.Operating temperature : -20 to 105 (including self-temperature rise).
oo
C C
o
45 C.
DELTA ELECTRONICS, INC.
(TAOYUAN PLANT CPBG)
252, SAN YING ROAD, KUEISAN INDUSTRIAL ZONE, TAOYUAN SHIEN, 333, TAIWAN, R.O.C.
TEL: 886-3-3591968; FAX: 886-3-3591991
http://www.deltaww.com
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