SMT Power Inductor
SILM8040 Type
Features
RoHS compliant.
Low profile (4.0mm max. Height), SMD type.
Self-leads, suitable for high density mounting.
High energy storage and low DCR.
Provided with embossed carrier tape packing.
Ideal 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:
RECOMMENDED PAD PA
TTERNS
C
B
UNIT:mm/inch
A = 8.4 / 0.331 Max.
B = 4.2 / 0.165 Max.
C = 8.4 / 0.331 Max.
D = 6.3 0.5 / 0.248 0.020
E = 3.0 0.5/ 0.118 0.020
F = 9.5 0.5 / 0.374 0.020
3.
7
A
3
5.
10
.5
D
Electrical Characteristics:
PART NO.
SILM8040 - 1R5
SILM8040 - 2R2
SILM8040 - 3R3
SILM8040 - 4R4
SILM8040 - 5R2
SILM8040 - 100
SILM8040 - 150
SILM8040 - 220
SILM8040 - 330
SILM8040 - 470
SILM8040 - 680
SILM8040 - 101
25
O
C
: 100KHz, 0.1V
DCR
(m ) MAX
13.8
18.3
20.6
25.7
30.0
47.0
71.3
102.0
143.0
189.0
260.0
361.0
L
1
(uH)
1.5
2.2
3.3
4.4
5.2
10.0
15.0
22.0
33.0
47.0
68.0
100.0
Isat
(Adc)
7.00
6.50
5.00
4.60
4.20
3.00
2.75
2.30
1.75
1.52
1.30
1.05
2
Irated
3
(Adc)
9.00
7.50
6.00
6.00
4.50
4.00
3.00
2.50
2.00
2.00
1.30
3.50
F
INDUCTANCE ( uH)
1. Tolerance of inductance : 1.5~100uH 30%.
2. Irated is the DC current which cause the inductance drop 35% of its nominal inductance without current
and the surface temperature of the part increase less than 45
o
C.
3. Operating temperature: -20
o
C to 105
o
C (including self-temperature rise).
E
100
10
1
0
0
1
10
DC BAIS (A)
100
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
59
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