SDER041B

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Delta Part No﹒︰SDER041B type
Part Name︰Sealed Choke
Sealed Choke Coil SDER041B type

Features
Low profile：4.0mm x 4.0mm x 1.2mm
Low coil resistance with large currents.
High magnetic shield construction should actualize high resolution for EMC protection.
100% lead (Pb) free meet RoHS standard

Application
Cellular phones, LCD displays, HDDs, DVCs, DSCs, PDAs etc..

Outline Dimensions
W
L
Code
L
Dimensions (mm)
4.0  0.2
W
4.0  0.2
T
1.2 Max
Unit : mm
T
Note：This graph is in regard to outline dimensions spec. For outer appearance, please refer to actual product.
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
Marking
The inductor is marked with a 3-digit code
Example – – 10H  100
100

Recommend Land Pattern Dimensions
The customer shall determine the land dimensions shown below after confirming and safety.
B
A
C
A
3.6
B
1.8
C
4.1
Unit : mm
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
Specifications
Part Number
SDER041B-R47MS
SDER041B-2R2MS
SDER041B-4R7MS
SDER041B-6R8MS
SDER041B-100MS
SDER041B-150MS
SDER041B-220MS
L0
Inductance
( H )
@ (0A)
Heat Rating Current
DC Amps. Idc ( A )
Rdc ( m)
Typical
0.47
2.2
4.7
6.8
10.0
15.0
22.0
30
69
109
130
190
339
410
Saturation Current
DC Amps. Isat ( A )
Maximum
Typical
Maximum
Typical
Maximum
37
83
131
156
228
407
492
3.90
2.70
1.90
1.70
1.45
1.05
0.95
3.50
2.43
1.71
1.53
1.30
0.95
0.86
4.00
2.00
1.45
1.20
1.1
0.80
0.70
3.60
1.80
1.30
1.08
1.0
0.72
0.63
* ：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 △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
2.0
80
1.5
60
0.2
40
0.1
20
0.0
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
INDUCTANCE(μH)
1.0
0.5
20
0.0
5.5
0
0.0
0.4
0.8
1.2
1.6 2.0 2.4 2.8
DC BIAS(Amps)
DC BIAS(Amps)
SDER041B-4R7MS
4.0
80
7.0
3.0
60
INDUCTANCE(μH
)
TEMP . RISE(℃)
2.0
40
1.0
20
0.0
1.2
1.6
2.0
DC BIAS(Amps)
2.4
SDER041B-100MS
12.0
INDUCTANCE(μH)
10.0
30
0.4
0.6
0.8
1.0
1.2
DC BIAS(Amps)
1.4
1.6
100
80
15
60
INDUCTANCE(μH)
40
TEMP. RISE(℃)
5
20
0
0
0.0
0.2
0.4
0.6
0.8
1.0
DC BIAS(Amps)
0.3
0.6
0.9
1.2
1.5
DC BIAS(Amps)
1.2
1.4
1.8
2.1
2.4
SDER041B-150MS
100
80
12.0
60
9.0
40
INDUCTANCE(μH)
6.0
TEMP. RISE(℃)
20
3.0
0
0.2
0.4
0.6
0.8
1.0
1.2
DC BIAS(Amps)
20
10
0
0.0
1.8
SDER041B-220MS
25
20
0.0
0
0.2
TEMP. RISE(℃)
1.4
15.0
15
0.0
40
INDUCTANCE(μH)
2.8
75
45
0.0
80
60
18.0
6.0
2.0
100
4.2
90
60
INDUCTANCE(μH
)
TEMP. RISE(℃)
4.0
SDER041B-6R8MS
0.0
8.0
4.0
3.6
5.6
2.8
INDUCTANCE(μH)
0.8
TEMP .RISE(℃)
0.4
3.2
0.0
0
0.0
INDUCTANCE(μH)
INDUCTANCE(μH)
8.4
TEMP .RISE(℃)
100
TEMP.RISE(℃)
INDUCTANCE(μH)
5.0
40
TEMP. RISE(℃)
TEMP.RISE(℃)
80
60
INDUCTANCE(μH
)
TEMP. RISE(℃)
100
TEMP.RISE(℃)
0.3
2.5
1.4
1.6
1.8
TEMP.RISE(℃)
INDUCTANCE(μH)
0.4
SDER041B-2R2MS
100
INDUCTANCE(μH)
SDER041B-R47MS
0.5
TEMP .RISE(℃)
