Wire Wound Molded SMD Power Inductors-WT Series
Operating Temp. : -55℃~+155℃(Including self-heating)
FEATURES
Extremely low DCR and ultra low AC losses for high switching frequencies (up to 5MHz)
Closed magnetic circuit design reduces leakage flux and Electro Magnetic Interference (EMI)
Excellent saturation characteristics
Ultra wide temperature range of application(-55~155℃)
No thermal aging issues
High reliability
APPLICATIONS
High-end phones, tablets, 5G modules
Server, base station, etc.
Various DC-DC conversion power modules
PRODUCT IDENTIFICATION
WT
□
0430
T
1R0
M
T
①
②
③
④
⑤
⑥
⑦
①
②
Type
WT
Molded SMD Power Inductors
③ External Dimensions(L×W×H) [mm]
Feature Type
X
Standard Type
H
Special Type
④
Feature Type
252012
2.5×2.0×1.2
T
322512
3.2×2.5×1.2
TA
0415
4.0×4.0×1.5
0420
4.0×4.0×2.1
0430
⑥
⑤
4.0×4.0×3.1
Internal Code
Nominal Inductance
Example
Nominal Value
1R0
1.0μH
4R7
4.7μH
Inductance Tolerance
N
±30%
M
±20%
Sunlord
⑦
Packing
T
Tape & Reel
Specifications subject to change without notice. Please check our website for latest information.
Revised 2022/06/07
Sunlord Industrial Park, Dafuyuan Industrial Zone, Guanlan, Shenzhen, China 518110 Tel: 0086-755-2983233 Fax: 0086-755-82269029 E-Mail: sunlord@sunlordinc.com
SHAPE AND DIMENSIONS
Fig.1
Fig.2
C
D
E
F
A
E
B
Fig.3
Recommended Land Pattern
Unit: mm
Series
Shape
A
B
C Max.
D
E
F
a
b
c
WTX(E)252012
Fig.1
2.5±0.1
2.0±0.1
1.2
1.96±0.1
0.78±0.1
/
0.9typ.
0.8typ.
2.1typ.
WTX(E)322512
Fig.2
3.2±0.2
2.5±0.2
1.2
2.5±0.2
1.15±0.2
0.9±0.2
1.2typ.
0.8typ.
2.5typ.
WTH0415
Fig.3
4.0±0.3
4.0±0.3
1.5
4.1typ.
1.3±0.3
/
1.6typ.
1.1min.
4.3max
WTX0420
Fig.3
4.0±0.3
4.0±0.3
2.1
4.1typ.
1.3±0.3
/
1.6typ.
1.1min.
4.3max
WTHE0420
Fig.3
4.0±0.3
4.0±0.3
2.0
4.1typ.
1.3±0.3
/
1.6typ.
1.1min.
4.3max
WTX0430
Fig.3
4.0±0.3
4.0±0.3
3.1
4.1typ.
1.3±0.3
/
1.6typ.
1.1min.
4.3max
SPECIFICATIONS
WTX(E)252012 Series
Part Number
Inductance
@1MHz
Units
μH
Symbol
WTXE252012TR22MT
WTX252012TA1R0MT
WTXE252012TA1R5MT
WTX252012TA4R7MT
L
0.22±20%
1.0±20%
1.5±20%
4.7±20%
DC Resistance
Max.
Typ.
Self-resonant
Frequency
Min.
Saturation Current
Max.
MHz
mΩ
DCR
10
29
44
150
8
26
40
125
S.R.F
/
/
/
/
Heat Rating Current
Typ.
Max.
A
A
Isat
10
3.7
3.5
2.0
Typ.
Irms
11.5
4.0
4.0
2.4
9
3
4.5
1.5
10
3.5
5.0
2.0
WTX(E)322512 Series
Inductance
DC Resistance
Part Number
@1MHz
Max.
Typ.
Self-resonant
Frequency
Min.
Saturation Current
Max.
Heat Rating Current
Typ.
Max.
Typ.
Units
μH
mΩ
MHz
A
A
Symbol
WTX322512TR10MT
L
0.1±20%
DCR
S.R.F
Isat
Irms
Sunlord
4.2
3.3
/
13.0
15.5
Specifications subject to change without notice. Please check our website for latest information.
7.6
8.6
Revised 2022/06/07
Sunlord Industrial Park, Dafuyuan Industrial Zone, Guanlan, Shenzhen, China 518110 Tel: 0086-755-2983233 Fax: 0086-755-82269029 E-Mail: sunlord@sunlordinc.com
SPECIFICATIONS
WTX(E)322512 Series
Part Number
Inductance
@1MHz
DC Resistance
Max.
Typ.
Self-resonant
Frequency
Min.
Units
μH
mΩ
MHz
Symbol
WTXE322512TR30MT
WTX322512TAR47MT
WTXE322512TR47MT
WTXE322512TR68MT
WTX322512TA1R0MT
L
0.3±20%
0.47±20%
0.47±20%
0.68±20%
1.0±20%
DCR
9.0
7.2
24
20
13.0
11.8
16.5
15.0
36
30
S.R.F
/
80
/
/
45
Inductance
DC Resistance
Self-resonant
Frequency
Saturation Current
Max.
Heat Rating Current
Typ.
Max.
A
A
Isat
6.5
9.0
6.5
5.5
6.4
Typ.
Irms
7.4
9.9
7.2
6.5
7.1
5.5
6.1
7.5
6.6
4.0
6.5
6.8
8.3
7.3
4.4
WTH0415T Series
Part Number
@1MHz
Max.
Typ.
Min.
Units
μH
mΩ
MHz
Symbol
WTH0415TR33MT
WTH0415TR47MT
WTH0415TR68MT
WTH0415T1R0MT
L
0.33±20%
0.47±20%
0.68±20%
1.0±20%
DCR
4.8
4.4
6.1
5.5
9.2
8.3
12.5
11.3
S.R.F
83
64
52
40
Inductance
DC Resistance
Self-resonant
Frequency
Saturation Current
Max.
Heat Rating Current
Typ.
Max.
A
A
Isat
13.0
9.5
8.0
6.0
Typ.
Irms
14.5
11.5
9.6
7.4
13.9
11.3
9.6
8.3
16.0
13.0
11.0
9.5
WTX0420T Series
Part Number
@1MHz
Max.
Typ.
Min.
Units
μH
mΩ
MHz
Symbol
WTX0420TR33MT
WTX0420TR47MT
WTX0420TR68MT
WTX0420TR82MT
WTX0420T1R0MT
WTX0420T1R5MT
WTX0420T2R2MT
WTX0420T3R3MT
L
0.33±20%
0.47±20%
0.68±20%
0.82±20%
1.0±20%
1.5±20%
2.2±20%
3.3±20%
DCR
3.6
3.0
4.5
4.1
6.4
5.8
6.4
5.8
8.4
7.6
13.6
12.4
22.7
20.6
28.6
26.0
S.R.F
79
61
50
40
39
32
26
18
Inductance
DC Resistance
Self-resonant
Frequency
Saturation Current
Max.
Heat Rating Current
Typ.
Max.
A
A
Isat
15.7
11.2
9.8
8.2
7.6
6.3
5.6
4.7
Typ.
Irms
18.1
13.4
12.0
10.4
9.0
7.5
6.4
5.4
19.9
17.0
12.8
12.8
11.7
9.5
7.8
6.6
23.0
19.7
14.8
14.8
13.5
11
9
7.3
WTHE0420T Series
Part Number
@1MHz
Max.
Typ.
Min.
Units
μH
mΩ
MHz
Symbol
WTHE0420TR47MT
WTHE0420TR68MT
WTHE0420T1R0MT
WTHE0420T1R2MT
L
0.47±20%
0.68±20%
1.0±20%
1.2±20%
DCR
S.R.F
58
48
38
35
Sunlord
4.8
6.4
8.4
9.9
4.2
5.8
7.4
9.0
Saturation Current
Max.
8.5
7.8
6.5
5.4
Heat Rating Current
Typ.
Max.
Typ.
A
A
Isat
Irms
10.0
9.0
8.0
6.2
Specifications subject to change without notice. Please check our website for latest information.
16.0
14.0
12.0
10.5
18.0
16.0
14.0
12.5
Revised 2022/06/07
Sunlord Industrial Park, Dafuyuan Industrial Zone, Guanlan, Shenzhen, China 518110 Tel: 0086-755-2983233 Fax: 0086-755-82269029 E-Mail: sunlord@sunlordinc.com
SPECIFICATIONS
WTX0430T Series
Inductance
Part Number
@1MHz
DC Resistance
Max.
Self-resonant
Frequency
Typ.
Min.
Units
μH
mΩ
MHz
Symbol
WTX0430TR33MT
WTX0430TR47MT
WTX0430TR68MT
WTX0430T1R0MT
WTX0430T1R5MT
WTX0430T2R2MT
WTX0430T3R3MT
WTX0430T4R7MT
WTX0430T6R8MT
L
0.33±20%
0.47±20%
0.68±20%
1.0±20%
1.5±20%
2.2±20%
3.3±20%
4.7±20%
6.8±20%
DCR
2.2
2.0
3.1
2.6
3.9
3.5
5.7
5.2
8.6
7.8
11.8
10.7
17.7
16.1
23.4
21.3
37.4
34.0
S.R.F
76.4
62.4
50.0
42.7
33.7
24.5
21.6
18.6
14.3
Saturation Current
Max.
Heat Rating Current
Typ.
Max.
A
A
Isat
18.8
15.6
14.3
11.9
9.6
7.1
5.3
4.8
4.1
Typ.
Irms
21.4
17.7
16.3
13.5
11.0
8.1
5.8
5.5
4.8
19.4
17.0
14.1
12.6
9.8
9.0
8.0
6.1
4.6
22.4
19.6
16.2
14.5
11.3
10.3
8.3
7.0
5.3
※1: Rated current: Isat or Irms, whichever is smaller;
※2: Isat: DC current at which the inductance drops approximate 30% from its value without current;
※3: Irms: DC current that causes the temperature rise (△T =40°C) from 20°C ambient.
TYPICAL ELECTRICAL CHARACTERISTICS
WTXE322512T Series
Inductance&Temperature vs. DC Current Characteristics
WTXE322512TR47MT
WTXE322512TR68MT
WTH0415T Series
Inductance&Temperature vs. DC Current Characteristics
WTH0415TR33MT
Sunlord
WTH0415TR47MT
Specifications subject to change without notice. Please check our website for latest information.
Revised 2022/06/07
Sunlord Industrial Park, Dafuyuan Industrial Zone, Guanlan, Shenzhen, China 518110 Tel: 0086-755-2983233 Fax: 0086-755-82269029 E-Mail: sunlord@sunlordinc.com
TYPICAL ELECTRICAL CHARACTERISTICS
WTX0420T Series
Inductance&Temperature vs. DC Current Characteristics
WTX0420TR33MT
WTX0420TR47MT
WTHE0420T Series
Inductance&Temperature vs. DC Current Characteristics
WTHE0420TR47MT
WTHE0420TR68MT
WTX0430T Series
Inductance&Temperature vs. DC Current Characteristics
WTX0430TR33MT
Sunlord
WTX0430TR47MT
Specifications subject to change without notice. Please check our website for latest information.
Revised 2022/06/07
Sunlord Industrial Park, Dafuyuan Industrial Zone, Guanlan, Shenzhen, China 518110 Tel: 0086-755-2983233 Fax: 0086-755-82269029 E-Mail: sunlord@sunlordinc.com
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