SDEM20161T

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Delta Part No﹒︰SDEM20161T type
Part Name︰Sealed Choke
Sealed Choke Coil SDEM20161T type

Features
Low profile：2.0 mm x 1.6 mm x 1.0 mm
High performance (Isat) realized by metal dust core.
Low loss realized with low DCR
High magnetic shield construction should actualize high resolution for EMC.
100% lead (Pb) free meet RoHS standard

Application
DC/DC converter for CPU in Notebook PC
Cellular phones, LCD displays, HDDs, DVCs, DSCs, PDAs etc..
VRM for server

Outline Dimensions
W
L
Code
Dimensions
L
1.6  0.1
W
2.0  0.1
T
1.0 Max.
Unit : mm
T
Note ：This graph is in regard to outline dimensions spec. For outer appearance, please refer to actual product.

Recommend Land Pattern Dimensions
The customer shall determine the land dimensions shown below after confirming and safety.
B
A
C
A
1.6
B
0.7
C
2.0
Unit : mm
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
Specifications
Part Number
SDEM20161T-R24MS
SDEM20161T-R33MS
SDEM20161T-R47MS
SDEM20161T-R68MS
SDEM20161T-1R0MS
SDEM20161T-1R5MS
SDEM20161T-2R2MS
SDEM20161T-3R3MS
SDEM20161T-4R7MS
SDEM20161T-6R8MS
SDEM20161T-100MS
L0
Inductance
( H )
@ (0A)
0.24
0.33
0.47
0.68
1.0
1.5
2.2
3.3
4.7
6.8
10.0
Rdc ( m)
Typical
20
27
34
46
60
100
134
255
355
532
840
Maximum
24
32
41
55
72
120
159
306
426
639
1,010
Heat Rating Current
DC Amps. Idc ( A )
Saturation Current
DC Amps. Isat ( A )
Typical
Maximum
Typical
Maximum
5.0
4.00
3.4
3.2
2.7
2.4
1.8
1.2
1.1
0.80
0.7
4.50
3.60
3.00
2.80
2.40
2.16
1.60
1.08
1.00
0.72
0.63
6.1
4.4
4.3
3.7
3.0
2.7
1.9
1.5
1.4
1.15
0.8
5.50
4.00
3.90
3.30
2.70
2.43
1.70
1.35
1.26
1.05
0.72
* ：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:1MHz, 1.0Vrms
Note 3.： Idc : DC current (A) that will cause an approximate △ T 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.
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
Current Characteristic
80
0.32
0.20
60
40
20
0.05
0.00
0
0
1
2
3
4
5
6
7
40
0.16
TEMP.RISE(℃)
0.00
8
0
0.0
1.0
2.0
3.0
DC BIAS(Amps)
0.84
80
0.70
60
INDUCTANCE(μH)
40
TEMP.RISE(℃)
0.20
20
0.10
0.00
INDUCTANCE(μH)
0.40
100
TEMP. RISE(℃)
INDUCTANCE(μH)
0.50
0.30
0
0
1
2
3
4
5
60
0.42
INDUCTANCE(μH)
20
0.14
80
1.50
0.00
INDUCTANCE(μH)
1.80
20
0.20
0
1.2
1.6
2.0
2.4
0
0.4
0.8
1.2
1.6
2.8
3.2
3.6
80
60
0.90
40
0.60
INDUCTANCE(μH)
0.30
20
TEMP.RISE(℃)
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
60
0.00
0
2.4
2.8
3.2
INDUCTANCE(μH)
2.4
20
0.45
SDEM20161T-3R3MS
80
40
DC BIAS(Amps)
100
3.2
TEMP . RISE(℃)
INDUCTANCE(μH)
TEMP.RISE(℃)
2.0
4.4
80
0.90
1.6
4.0
4.0
60
1.2
3.6
100
INDUCTANCE(μH)
0.8
3.2
1.20
0.0
1.80
0.4
2.8
DC BIAS(Amps)
2.25
0.0
2.4
0.00
4.0
SDEM20161T-2R2MS
1.35
2.0
SDEM20161T-1R5MS
DC BIAS(Amps)
2.70
40
TEMP.RISE(℃)
0.28
100
40
TEMP.RISE(℃)
0.8
100
80
0.0
60
INDUCTANCE(μH)
0.4
8.0
0.00
TEMP. RISE(℃)
INDUCTANCE(μH)
0.80
0.0
7.0
DC BIAS(Amps)
1.00
0.40
6.0
0.56
6
SDEM20161T-1R0MS
0.60
5.0
SDEM20161T-R68MS
DC BIAS(Amps)
1.20
4.0
DC BIAS(Amps)
SDEM20161T-R47MS
0.60
20
INDUCTANCE(μH)
0.08
TEMP. RISE(℃)
0.10
TEMP.RISE(℃)
60
0.24
TEMP RISE(℃)
INDUCTANCE(μH)
80
1.6
100
40
INDUCTANCE(μH)
TEMP.RISE(℃)
0.8
20
0.0
0
0.0
0.4
0.8
1.2
1.6
DC BIAS(Amps)
2.0
2.4
TEMP RISE(℃)
0.15
SDEM20161T-R33MS
TEMP RISE(℃)
0.40
INDUCTANCE(μH)
INDUCTANCE(μH)
0.25
100
TEMP. RISE(℃)
SDEM20161T-R24MS
0.30
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60
3.0
40
2.0
INDUCTANCE(μH)
1.0
TEMP.RISE(℃)
20
0.0
0
0.0
0.4
0.8
1.2
1.6
100
10.0
80
8.0
60
6.0
40
4.0
INDUCTANCE(μH)
2.0
TEMP.RISE(℃)
0.0
20
0
DC BIAS(Amps)
5.60
60
4.20
40
2.80
INDUCTANCE(μH)
1.40
20
TEMP. RISE(℃)
0
0.0
TEMP RISE(℃)
INDUCTANCE(μH)
SDEM20161T-100MS
80
0.00
2.0
DC BIAS(Amps)
12.0
INDUCTANCE(μH)
4.0
100
7.00
80
TEMP RISE(℃)
INDUCTANCE(μH)
5.0
SDEM20161T-6R8MS
8.40
100
0.2
0.4
0.6
0.8
1.0
1.2
DC BIAS(Amps)
1.4
1.6
1.8
TEMP..RISE(℃)
SDEM20161T-4R7MS
6.0