SDES052T

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Delta Part No﹒︰SDES052T type
Part Name︰Sealed Choke
Sealed Choke Coil SDES052T type

Features
Low profile：4.9mm x 4.9mm x 2.0 mm
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
Dimensions (mm)
L
4.9  0.2
W
4.9  0.2
T
2.0 max.
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 – – 4.7H  4R7
Upside of Chip
4R7

Recommend Land Pattern Dimensions
The customer shall determine the land dimensions shown below after confirming and safety.
B
A
C
A
4.0
B
2.1
C
5.1
Unit : mm
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
Specifications
Part Number
L0
Inductance
( H )
@ (0A)
Rdc ( m)
Heat Rating Current
DC Amps. Idc ( A )
Saturation Current
DC Amps. Isat ( A )
Typical
Maximum
Typical
Maximum
Typical
Maximum
SDES052T-1R0MS
1.0
17
21
4.8
4.32
6.3
5.7
SDES052T-1R5MS
1.5
23.0
27.5
4.2
3.8
5.0
4.5
SDES052T-2R2MS
2.2
26.0
32.0
4.0
3.6
4.2
3.8
SDES052T-3R3MS
3.3
42.0
51.0
2.7
2.4
3.3
3.0
SDES052T-4R7MS
4.7
52.0
63.0
2.7
2.4
3.1
2.8
SDES052T-6R8MS
6.8
74.0
88.0
2.30
2.05
2.60
2.35
SDES052T-100MS
10.0
114.0
137.0
1.8
1.62
1.65
1.50
* ：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
1.20
3.0
80
2.5
60
INDUCTANCE(μH)
TEMP.RISE(℃)
0.80
40
0.40
20
0.00
0
0.0
1.0
2.0
3.0
4.0
5.0
DC BIAS(Amps)
6.0
SDES052T-2R2MS
80
2.0
60
1.5
INDUCTANCE (μH)
1.0
TEM PRISE (℃)
40
20
0.5
0.0
7.0
100
TEMP RISE(℃)
INDUCTANCE(μH)
1.60
100
INDUCTANCE(μH)
SDES052T-1R5MS
2.00
TEMP RISE(℃)

0
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)
6.0
40
1.4
20
0.7
0.0
INDUCTANCE(μH)
60
INDUCTANCE(μ
H)
TEMP.RISE(℃)
2.1
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
SDES052T-4R7MS
5.0
80
2.8
TEMP RISE(℃)
INDUCTANCE(μH)
3.5
80
4.0
60
3.0
INDUCTANCE (μH)
2.0
20
1.0
0.0
4.5
0
0.0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6 3.9 4.2
60
3.0
INDUCTANCE (μH)
40
TEM PRISE (℃)
20
1.5
0.0
0
0.0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6 3.9 4.2
DC BIAS(Amps)
SDES052T-100MS
10.0
80
6.0
4.5
12.0
100
TEMP RISE(℃)
INDUCTANCE(μH)
7.5
DC BIAS(Amps)
INDUCTANCE(μH)
SDES052T-6R8MS
40
TEM PRISE (℃)
DC BIAS(Amps)
9.0
100
TEMP RISE(℃)
100
SDES052T-3R3MS
100
80
8.0
60
6.0
4.0
INDUCTANCE(μH)
TEMP RISE (℃)
40
20
2.0
0.0
0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6
DC BIAS(Amps)
TEMP RISE(℃)
4.2