SMTTC SERIES
SMT TOROIDS POWER CHOKES.
Applications :
．Computer
and portable power devices.
．Energy
storage applications.
．DC/DC
converters.
．Input
–
output filter application.
Shape and Dimensions (Dimensions are in mm) :
Item
SMTTC30
SMTTC38
SMTTC44
SMTTC50
A(MAX)
11.05
14.22
14.99
17.02
B(MAX)
11.18
14.35
15.62
17.78
C(MAX)
9.50
9.50
10.50
10.50
Item
SMTTC30
SMTTC38
SMTTC44
SMTTC50
D
8.89
11.43
12.70
14.73
H
10.16
13.21
13.97
15.75
I
1.52
1.52
1.52
1.52
J
9.14
11.68
12.95
14.99
Features :
．High
current with closed magnetic path eliminate
stray electromagnetic emissions.
．Self-leaded
design ensure rugged reliability.
．Ideal
inductors for DC-DC conversion.
．Base
material meets flammability requirements of .
UL 94-V0.
．In
addition to the standard values shown, 3L can
custom engineer parts for specific applications.
Product identification :
SMT
(1)
TC30 - 18
(2)
(3)
-
120 M
(4)
(5)
(1) Type : Surface Mountable Type.
(2) Style : 0.3 Inch size Toroids.
(3)Materials: Refer to the next page.
(4)Inductance : Example : 120 for 12.0 uH.
(5)Inductance tolerance :
M :
±
20%.
Characteristics :
．Saturation
Current (Isat): The current when the
inductance becomes 30% lower than its initial
value.(Ta=20℃)
．Temperature
Rise Current( Irms): The current when
temperature of coil increase up to max.
△
T=40
℃.(Ta=20℃).
．Operating
temperature : -20℃ to 105℃.
Lasting . Leaning . Leading
Test equipments :
．Inductance
measured at 0Adc on an HP 4284A LCR
Meter @100kHz 0.1V.
．DCR
measured on a Chroma 16502 micro-ohmmeter
or equivalent.
．Electrical
specifications at 25℃.
3L Electronic Corp.
56.1
Web :
http://www.3lcoil.com
l
SMTTC44 series
Part No.
SMTTC44 - 8/90 - 5R6M
SMTTC44 - 8/90 - 100M
SMTTC44 - 8/90 - 150M
SMTTC44 - 8/90 - 270M
SMTTC44 - 8/90 - 681M
SMTTC44 - 18
–
7R9M
SMTTC44 - 18 - 140M
SMTTC44 - 18 - 220M
SMTTC44 - 18 - 410M
SMTTC44 - 18 - 112M
SMTTC44 - 52 - 120M
SMTTC44 - 52 - 180M
SMTTC44 - 52 - 270M
SMTTC44 - 52 - 560M
SMTTC44 - 52 - 152M
SMTTC44 - M125 - 180M
SMTTC44 - M125 - 270M
SMTTC44 - M125 - 470M
SMTTC44 - M125 - 101M
SMTTC44 - M125 - 222M
L
(uH)
±20%
5.6
10.0
15.0
27.0
680
7.9
14.0
22.0
41.0
1100
12
18
27
56
1500
18
27
47
100
2200
DCR
(mΩ)
Max.
16.2
23.6
39.0
85.0
1908
16.2
23.6
39.0
85.0
2500
16.2
23.6
39.0
85.0
1908
16.2
23.6
39.0
85.0
1908
SRF
(MHz)
Typ.
65
40
25
12
1.4
49
33
23
9.5
1.2
62
35
26
9.0
0.85
49
33
23
7.5
0.60
I sat
(A)
Typ.
11.0
9.0
7.4
5.4
1.0
6.6
5.2
4.1
3.0
0.58
4.5
3.5
2.8
2.0
0.39
4.3
3.4
2.6
1.8
0.38
I rms
(A)
Max.
7.8
5.5
4.0
2.7
0.70
7.8
5.5
4.0
2.7
0.70
7.8
5.5
4.0
2.7
0.70
7.8
5.5
4.0
2.7
0.70
l
SMTTC50 series
SMTTC50 - 8/90 - 100M
SMTTC50 - 8/90 - 150M
SMTTC50 - 8/90 - 470M
SMTTC50 - 8/90 - 101M
SMTTC50 - 8/90 - 152M
SMTTC50 - 18 - 160M
SMTTC50 - 18 - 260M
SMTTC50 - 18 - 730M
SMTTC50 - 18 - 151M
SMTTC50 - 18 - 202M
SMTTC50 - 52 - 180M
SMTTC50 - 52 - 270M
SMTTC50 - 52 - 101M
SMTTC50 - 52 - 221M
SMTTC50 - 52 - 272M
SMTTC50 - M125 - 330M
SMTTC50 - M125 - 470M
SMTTC50 - M125 - 151M
SMTTC50 - M125 - 331M
SMTTC50 - M125 - 472M
10
15
47
100
1500
16
26
73
150
2000
18
27
100
220
2700
33
47
150
330
4700
19.7
32
133
220
1932
19.7
32
133
220
1932
19.7
32
133
220
1932
19.7
32
133
220
1932
35
27
7.0
3.8
0.72
24
11
4.5
2.6
0.60
35
27
5.2
2.2
0.50
19
16
3.6
2.0
0.45
9.0
7.5
4.3
2.9
0.76
5.4
4.3
2.5
1.8
0.50
4.4
3.6
1.9
1.3
0.37
3.5
2.8
1.6
1.2
0.31
7.2
5.1
2.6
2.0
0.71
7.2
5.1
2.6
2.0
0.71
7.2
5.1
2.6
2.0
0.71
7.2
5.1
2.6
2.0
0.71
* Due to the limited space, the catalogue shows the typical specifications only. For more specific details ( characteristics graph, reliability, and others),
kindly invite you to access 3L official website www.3lcoil.com for better known.
Lasting . Leaning . Leading
3L Electronic Corp.
56.3
Web :
http://www.3lcoil.com
Analogue and Mixed Signal
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