Document 327-1
SMT Power Inductors - MLC Series
The MLC series of flat wire power inductors offers ex-
tremelylowDCresistanceandveryhighsaturationcurrent
ratings (up to 37 Amps). Its compact size and magnetic
shielding make it suitable for use in high-density boards.
These inductors are ideal for power supply applications
where high current handling is essential. They are perfect
for use in VRD/VRM controllers.
Inductance is unaffected by ambient temperature up to
+135°C. The materials used in the unique design elimi-
nate all thermal aging issues. Custominductancevalues
are also possible.
Coilcraft Designer’s Kit C187 contains samples of all
valuesshown.Toorder,contactCoilcraftorpurchaseon-
lineathttp://order.coilcraft.com.
L2
DCR
±ꢀ0
Height
1. When ordering, please specify packaging code:
MLC1ꢀꢀ2-4ꢀ±MXC
±±20
SRF Isat3 Irms4 max
Part number1
(µH) (mOhm) (MHz) (A)
(A) (mm)
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic
12.ꢀ mm × 1±.2 mm body size
tape.
MLC1265-361MX_ 0.36
MLC1260-401MX_ 0.40
MLC1255-421MX_ 0.42
MLC1240-451MX_ 0.45
0.930
234
228
219
198
37.0 19.0
6.5
6.1
5.6
4.1
B = Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge),
use code letter C instead.
0.930
0.930
1.73
35.5 19.8
33.0 19.8
25.0 15.7
D = 13″ machine-ready reel. EIA-481 embossed plastic
tape.
MLC1265-701MX_ 0.70
MLC1250-801MX_ 0.80
MLC1240-901MX_ 0.90
MLC1260-122MX_ 1.20
MLC1255-122MX_ 1.20
1.24
2.35
2.57
2.38
2.38
134
151
108
93
26.0 17.3
24.5 14.8
21.0 13.4
21.0 14.7
20.0 14.3
6.5
5.1
4.1
6.1
5.6
2. Inductance measured at 500 kHz, 0.1 Vrms, 0 Adc using a Coilcraft
SMD-A fixture in an Agilent/HP 4284A LCR meter.
3. DC current at which the inductance drops 20% (typ) from its value
without current.
4. Average current for a 40°C (max) rise above 25°C ambient.
5. Operating temperature range −40°C to +135°C.
6. Electrical specifications at 25°C.
85
MLC1250-132MX_ 1.30
MLC1245-152MX_ 1.50
MLC1260-172MX_ 1.70
MLC1245-402MX_ 4.00
2.38
4.08
2.84
8.18
76
79
72
46
20.0 10.9
15.0 11.5
17.0 13.6
5.1
4.6
6.1
4.6
13.0
8.8
13.± mm × 1ꢀ.2 mm body size
MLC1565-501MX_ 0.50
MLC1555-551MX_ 0.55
MLC1560-901MX_ 0.90
MLC1538-102MX_ 1.00
0.864
169
165
101
81
36.5 19.7
32.0 18.2
27.0 13.0
24.5 12.4
6.5
5.6
6.0
3.9
1.34
1.72
3.46
MLC1550-102MX_ 1.00
MLC1538-152MX_ 1.50
MLC1550-252MX_ 2.50
MLC1555-302MX_ 3.00
MLC1550-452MX_ 4.50
1.72
4.36
3.43
4.06
7.13
76
50
45
42
36
23.0 13.7
21.0 10.6
16.5 11.4
14.0 12.2
5.2
3.9
5.2
5.6
5.2
11.5
9.5
Specifications subject to change without notice.
Please check our website for latest information. Document 327-1 Revised 11/11/05
© Coilcraft, Inc. 2006