CYNTEC CO., LTD.
乾坤科技股份有限公司
DOCUMENT
: CMLE042T-000
REVISION
: A2
PAGE
: 1 OF 4
Power Choke Coil CMLE042T type
Features
High performance (Isat) realized by metal dust core.
Low profile:Thickness max. 2.0mm
Low loss realized with low DCR
Capable of corresponding high frequency (1MHz)
100% lead (Pb) free meet RoHS standard
Application
DC/DC converter for CPU in Notebook PC
Thin type on-board power supply module for exchanger
VRM for server
Outline Dimensions
A'
L
A
Code
B
W
B'
H
T
Dimensions (mm)
L
4.40 0.35
W
4.20 0.25
T
1.8 0.2
A
0.8 0.3
A’
1.0 0.1
B
2.0 0.3
B’
2.5 0.2
H
0 ~ +0.15
Recommend Land Pattern Dimensions
The customer shall determine the land dimensions shown below after confirming and safety.
B
A
C
A
2.5
B
2.2
C
5.2
Unit : mm
Dec., 2021
CYNTEC CO., LTD.
乾坤科技股份有限公司
DOCUMENT
: CMLE042T-000
REVISION
: A2
PAGE
: 2 OF 4
Specifications
L0
Inductance
( H )
@ (0A)
Typical
CMLE042T-R36MS
0.36
CMLE042T-R47MS
Heat Rating Current
DC Amps. Idc ( A )
Saturation Current
DC Amps. Isat ( A )
Maximum
Typical
Maximum
Typical
Maximum
8.0
9.2
12.80
11.50
11.00
9.50
0.47
8.4
9.5
11.50
10.00
9.50
8.50
CMLE042T-R68MS
0.68
11.7
13.5
8.70
7.80
9.00
7.70
CMLE042T-1R0MS
1.0
17.0
20.0
7.50
6.50
8.70
7.60
CMLE042T-1R5MS
1.5
30.0
36.0
5.80
5.20
7.00
6.00
CMLE042T-2R2MS
2.2
36.0
42.0
5.50
4.80
6.50
5.70
CMLE042T-3R3MS
3.3
55.0
64.0
3.70
3.30
5.00
4.30
CMLE042T-4R7MS
4.7
74.0
89.0
3.50
3.10
4.60
3.80
CMLE042T-6R8MS
6.8
128.0
148.0
2.60
2.35
3.30
2.70
Part Number
Rdc ( m )
* :If you require another part number please contact with us.
**:Inductance Tolerance 20%
Note 1.: All test data is referenced to 25℃ ambient.
Note 2.: Test Condition : 100KHz, 1.0Vrms
Note 3.: Idc : DC current (A) that will cause an approximate ΔT of 40℃
Note 4.: Isat : DC current (A) that will cause L0 to drop approximately 30%
Note 5.: Operating Temperature Range -55℃ to +125℃
Note 6.: The part temperature (ambient + temp rise) should not exceed 125℃ under the worst case operating
conditions. Circuit design, component placement, PCB trace size and thickness, airflow and other cooling
provision all affect the part temperature. Part temperature should be verified in the end application.
Note 7.: The rated current as listed is either the saturation current or the heating current depending on which value
is lower.
Dec., 2021
CYNTEC CO., LTD.
乾坤科技股份有限公司
0.32
100
0.60
80
0.50
60
0.16
TEMP. RISE(℃)
40
20
0.08
0
2
4
6
8
10
12
14
16
0.84
80
0.40
60
0.30
INDUCTANCE(μH)
0.20
20
0.10
0
0.00
0
2
4
6
8
100
40
20
0.14
0.00
10
12
60
INDUCTANCE(μH)
0.40
TEMP. RISE(℃)
20
0
2.70
80
2.25
40
20
0.30
0.00
INDUCTANCE(μH)
100
60
TEMP. RISE(℃)
1
2
3
4
5
2
3
4
5
6
7
8
9
10
11
60
1.35
INDUCTANCE(μH)
0.90
TEMP. RISE(℃)
6.00
80
5.00
40
20
0
0.00
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
DC BIAS(Amps)
40
20
0.45
100
60
0.70
100
0
1
2
3
4
5
6
7
8
DC BIAS(Amps)
INDUCTANCE(μH)
2.80
TEMP. RISE(℃)
9
80
0
TEMP. RISE(℃)
3.50
1.40
8
1.80
10
CMLE042T-3R3MS
INDUCTANCE(μH)
7
CMLE042T-2R2MS
DC BIAS(Amps)
2.10
6
0.00
0
1
40
0.20
0
TEMP. RISE(℃)
1.20
0.60
100
DC BIAS(Amps)
1.50
INDUCTANCE(μH)
20
80
0.60
14
CMLE042T-1R5MS
0.90
18
0.80
DC BIAS(Amps)
1.80
16
0.00
0
8
INDUCTANCE(μH)
TEMP. RISE(℃)
0.28
6
14
1.00
TEMP. RISE(℃)
INDUCTANCE(μH)
60
INDUCTANCE(μH)
4
12
CMLE042T-1R0MS
1.20
80
0.56
2
10
DC BIAS(Amps)
0.70
0
40
TEMP. RISE(℃)
18
CMLE042T-R68MS
0.42
100
CMLE042T-R47MS
DC BIAS(Amps)
INDUCTANCE(μH)
: 3 OF 4
TEMP. RISE(℃)
INDUCTANCE(μH)
0.00
INDUCTANCE(μH)
PAGE
TEMP. RISE(℃)
0.24
4.20
: A2
100
CMLE042T-4R7MS
80
4.00
60
3.00
INDUCTANCE(μH)
2.00
TEMP. RISE(℃)
40
TEMP. RISE(℃)
INDUCTANCE(μH)
0.40
0
REVISION
TEMP. RISE(℃)
CMLE042T-R36MS
INDUCTANCE(μH)
0.48
0
: CMLE042T-000
Current Characteristic
TEMP. RISE(℃)
DOCUMENT
20
1.00
0
0.00
0.0
0.5
1.0
1.5
2.0 2.5 3.0 3.5
DC BIAS(Amps)
4.0
4.5
5.0
5.5
Dec., 2021
CYNTEC CO., LTD.
乾坤科技股份有限公司
8.40
: CMLE042T-000
REVISION
: A2
PAGE
: 4 OF 4
100
CMLE042T-6R8MS
7.00
80
5.60
60
4.20
INDUCTANCE(μH)
2.80
TEMP. RISE(℃)
40
TEMP. RISE(℃)
INDUCTANCE(μH)
DOCUMENT
20
1.40
0.00
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
DC BIAS(Amps)
3.5
4.0
4.5
Dec., 2021
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