CYNTEC CO., LTD.
乾坤科技股份有限公司
DOCUMENT : CMLE105TXXX-040
REVISION
: A1
PAGE
: 1 OF 8
CMLE105T-XXXMS Power Choke Coil
1. Features
High performance (Isat) realized by metal dust core.
Low profile: 10.3mm x 11.2/11.5mm x 5.0mm
Low loss realized with low DCR
Capable of corresponding high frequency (1MHz)
100% lead (Pb) free meet RoHS standard
2. Application
DC/DC converter for CPU in Notebook PC
Thin type on-board power supply module for exchanger
VRM for server
3. Type Designation
CMLE 105T
(1)
(2)
Where
–
XXX
(3)
M
(4)
S
(5)
(1) Series No :
(2) Size :
105T = 10.3mm x 11.2/11.5mm x 5.0mm
(3) Inductance Value :
4R7 = 4.7H
(4) Tolerance :
M = 20%
(5) Materials :
S type
4. Outline Dimensions and Schematics
A'
L
Dimensions (mm)
A
B
Code
L
W
H
B'
T
1R0/1R5/2R2
3R3/4R7/5R6
6R8/100
11.15 0.35
10.85 0.35
W
10.0 0.3
T
4.8 0.2
A
2.0 0.5
A’
2.5 0.1
B
3.0 0.5
B’
5.0 0.2
H
0 ~ +0.15
Jun, 2020
CYNTEC CO., LTD.
乾坤科技股份有限公司
DOCUMENT : CMLE105TXXX-040
5. Marking and Date Code
5-1 Marking
The inductor is marked with a 3-digit code
Example – – 4.7H 4R7
5-2 Date Code
X
XX
(1)
(2)
Where
REVISION
: A1
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4R7
XXX
XXX
XXX
(3)
(1) Year
Ex : 2020 = 0
(2) Weekly
Serial number : 01 ~ 53
(3) Taping No.
Serial number : 000 ~ ZZZ
6. Recommend Land Pattern Dimensions
The customer shall determine the land dimensions shown below after confirming and safety.
B
A
C
A
4.1
B
5.4
C
13.6
Unit : mm
Jun, 2020
CYNTEC CO., LTD.
乾坤科技股份有限公司
DOCUMENT : CMLE105TXXX-040
REVISION
: A1
PAGE
: 3 OF 8
7. Specifications
L0
Inductance
( H )
@ (0A)
Typical
CMLE105T-1R0MS
1.0
CMLE105T-1R5MS
Heat Rating Current
DC Amps. Idc ( A )
Saturation Current
DC Amps. Isat ( A )
Maximum
Typical
Maximum
Typical
Maximum
2.2
2.5
25.5
23.0
36.0
31.0
1.5
2.6
3.0
24.0
22.0
30.0
27.0
CMLE105T-2R2MS
2.2
3.8
4.5
19.5
17.0
26.0
22.0
CMLE105T-3R3MS
3.3
6.5
7.5
15.0
13.5
22.0
19.0
CMLE105T-4R7MS
4.7
10.0
11.5
10.5
9.5
19.0
16.0
CMLE105T-5R6MS
5.6
12.5
15.0
10.0
9.0
13.0
11.0
CMLE105T-6R8MS
6.8
14.5
16.3
9.0
8.0
12.0
10.5
CMLE105T-100MS
10.0
21.0
23.0
7.6
7.0
11.0
9.3
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.: Idc : DC current (A) that will cause an approximate △T of 40℃
Note 3.: Isat : DC current (A) that will cause L0 to drop approximately 30%
Note 4.: Operating Temperature Range -55℃ to +125℃
Note 5.: 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 6.: The rated current as listed is either the saturation current or the heating current depending on which value
is lower.
Jun, 2020
CYNTEC CO., LTD.
乾坤科技股份有限公司
DOCUMENT : CMLE105TXXX-040
REVISION
: A1
PAGE
: 4 OF 8
7-1 Current Characteristic
80
3.50
60
1.35
INDUCTANCE(μH)
0.90
TEMP. RISE(℃)
40
20
0.45
0.00
3
6
9
12
15
18
21
24
27
80
2.80
60
2.10
INDUCTANCE(μH)
1.40
TEMP. RISE(℃)
20
0.70
0
0
30
2
4
6
8
DC BIAS(Amps)
100
40
TEMP. RISE(℃)
2.00
20
0.00
2
4
6
12.0
8
10 12 14 16
DC BIAS(Amps)
18
20
22
60
INDUCTANCE(μH)
3.60
40
TEMP. RISE(℃)
2.40
20
1.20
0
0
24
CMLE105T-100MS
80
4.80
0.00
0
0
INDUCTANCE(μH)
TEMP. RISE(℃)
60
INDUCTANCE(μH)
100
CMLE105T-5R6MS
6.00
80
4.00
1.00
INDUCTANCE(μH)
7.20
2
4
6
8
10
DC BIAS(Amps)
12
14
16
100
10.0
80
8.0
60
6.0
INDUCT ANCE(μH)
4.0
TEMP. RISE(℃)
40
TEMP. RISE(℃)
INDUCTANCE(μH)
5.00
3.00
10 12 14 16 18 20 22 24 26 28
DC BIAS(Amps)
CMLE105T-4R7MS
6.00
40
0.00
0
0
100
CMLE105T-3R3MS
TEMP. RISE(℃)
1.80
4.20
TEMP. RISE(℃)
INDUCTANCE(μH)
2.25
100
INDUCTANCE(μH)
CMLE105T-2R2MS
TEMP. RISE(℃)
2.70
20
2.0
0.0
0
0
1
2
3
4
5 6 7 8 9
DC BIAS(Amps)
10 11 12 13 14
Jun, 2020
CYNTEC CO., LTD.
乾坤科技股份有限公司
DOCUMENT : CMLE105TXXX-040
REVISION
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Test Instruments
Wayne kerr 3260B/G LCR Meter
Wayne kerr 3265B Bias Current Source
Test Condition
Temperature : 26 3℃ , Humidity : 70% RH
Frequency : 100KHz , 1.0V
8. Reliability
8-1 Mechanical
Item
Specification and Requirement
Test Method
Solderability
The surface of terminal immersed shall be
minimum of 95% covered with a new
coating of solder
Solder heat proof :
(1) Preheating : 160 10℃ 90seconds
(2) Retention time : 245 5℃ for
2 0.5 seconds
Vibration
Inductance change : Within 5%
(1) Vibration frequency :
Without mechanical damage such as
( 10Hz to 55Hz to10Hz ) in 60 seconds
break
as a period
(2) Vibration time :
period cycled for 2 hours in each of 3
mutual perpendicular directions
(3) Amplitude : 1.5mm max.
Shock
Inductance change : Within 5%
(1) Peak value : 100G
Without mechanical damage such as break (2) Duration of pulse : 11ms
(3) 3 times in each positive and
negative direction of 3 mutual
perpendicular directions
Jun, 2020
CYNTEC CO., LTD.
乾坤科技股份有限公司
DOCUMENT : CMLE105TXXX-040
REVISION
: A1
PAGE
: 6 OF 8
8-2 Endurance
Item
Specification and Requirement
Test Method
Thermal Shock
Inductance change : Within 5%
Without distinct damage in
appearance
(1) Repeat 100 cycle as follow :
(-55 2℃,30 3minutes)
(Room temperature, 5 minutes)
(+125 2℃,30 3minutes)
(Room temperature, 5 minutes)
(2) Recovery : 48 + 4 / - 0 hours of recovery
under the standard condition after the
test.
( See Note1 )
High Temperature
resistance
Inductance change : Within 10%
Without distinct damage in
appearance
(1) Environment condition :85 2℃
Applied Current : Rated current
(2) Duration : 1,000 + 4 / - 0 hours
( See Note1 )
Humidity resistance Inductance change : Within 5%
Without distinct damage in
appearance
(1) Environment condition :60 2℃
Humidity :90~95%
Applied Current : Rated current
(2) Duration : 1,000 + 4 / - 0 hours
( See Note1 )
Low Temperature Inductance change : Within 5%
Store
Without distinct damage in
appearance
(1) Store temperature :
-55 2℃ for total
1,000 + 4 / - 0 hours
High
Temperature Store
Inductance change : Within 10%
Without distinct damage in
appearance
(1) Store temperature :
+125 2℃ for total
1,000 + 4 / - 0 hours
Note1 : When there are questions concerning measurement result : measurement shall be made after
48 2 hours of recovery under the standard condition
Jun, 2020
CYNTEC CO., LTD.
乾坤科技股份有限公司
DOCUMENT : CMLE105TXXX-040
REVISION
: A1
PAGE
: 7 OF 8
9. Care note
9-1 Care note for Use
(1) Storage Condition :
Temperature 25 to 35℃, Humidity 45 to 85% RH
(2) Use Temperature :
a. Minimum Temperature : -55℃ Ambient temperature of power choke coil.
b. Maximum Temperature : +125℃ The value of temperature including ambient of the
transformer and temperature rise of power choke coil.
c. There is not a problem from -55℃ ~ +125℃ in a reliability test.
d. However, this is not meant a temperature grade guarantee of UL.
(3) Model :
When this power choke coil was used in a similar or new product to the original one,
sometimes it might be unable to satisfy the specifications due to difference of condition
of usage.
(4) Drop :
If the power choke coil suffered mechanical stress such as drop, characteristics may
become poor ( due to damage on coil bobbin, etc. ).
Never use such stressed power choke coil.
Jun, 2020
CYNTEC CO., LTD.
乾坤科技股份有限公司
DOCUMENT : CMLE105TXXX-040
REVISION
: A1
PAGE
: 8 OF 8
9-2 Care note for Safety
(1) Provision to Abnormal Condition
This power choke coil itself does not have any protective function in abnormal condition
such as overload, short-circuit and open-circuit conditions, etc.
Therefore, it shall be confirmed as the end product that there is no risk of smoking, fire,
dielectric withstand voltage, insulation resistance, etc. in abnormal conditions to provide
protective devices and/or protection circuit in the end product.
(2) Temperature Rise
Temperature rise of power choke coil depends on the installation condition on end
products.
It shall be confirmed on the actual end product that temperature rise of power choke
coil is in the limit of specified temperature class.
(3) Dielectric Strength
Dielectric withstanding test with higher voltage than specific value will damage insulating
material and shorten its life.
(4) Water
This power choke coil must not be used in wet condition by water, coffee or any liquid
because insulation strength becomes very low on the condition.
(5) Potting
If this power choke coil is potted in some compound, coating material of magnet wire
might be occasionally damaged. Please ask us if you intend to pot this power choke coil.
(6) Detergent
Please consult our company once in case of this because the confirmation of reliability
etc. is needed when the washing medicine is used for the power choke coil.
Jun, 2020
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