DOCUMENT : SIG3012-XXX
REVISION
: A4
: 1 OF 11
SPECIFICATION FOR APPROVAL
SIG3012-XXX Sealed Choke Coil
1. Features
PAGE
Low profile：2.9mm
x
2.9mm
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
2. Application
Cellular phones, LCD displays, HDDs, DVCs, DSCs, PDAs etc..
3. Type Designation
SIG
3012
–
(1)
(2)
Where
XXX
(3)
(1) Series No :
(2) Size :
3012 = 2.9mm
x
2.9mm
x
1.2mm
(3) Inductance Value :
3R3 = 3.3µH
4. Outline Dimensions
W
L
P
P
Code
L
W
T
P
Dimensions (mm)
2.9
±
0.2
2.9
±
0.2
1.2 Max.
0.75
±
0.2
T
Note：This graph is only regard to dimensions spec. For outer appearance, please refer to actual product.
DOCUMENT : SIG3012-XXX
REVISION
: A4
: 2 OF 11
SPECIFICATION FOR APPROVAL
5. Recommend Land Pattern Dimensions
PAGE
The customer shall determine the land dimensions shown above after confirming and safety.
B
A
A
C
2.7 ~ 2.9
1.2 ~ 1.4
3.0
Unit : mm
B
C
6. Specifications
L0
Inductance
(
µH
)
@ (0A)
0.5
1.0
1.5
2.2
3.3
4.7
6.8
10.0
22.0
33.0
47.0
R
dc
( mΩ)
Typical
35
43
65
82
100
130
190
280
630
910
1,250
Maximum
42
52
78
98
120
156
228
336
756
1,092
1,500
Heat Rating Current
DC Amps. Idc ( A )
Typical
2.80
2.60
2.00
1.90
1.70
1.40
1.20
1.00
0.67
0.55
0.45
Maximum
2.52
2.34
1.80
1.71
1.53
1.26
1.08
0.90
0.60
0.50
0.41
Saturation Current
DC Amps. Isat ( A )
Typical
2.80
2.50
1.90
1.70
1.50
1.20
1.00
0.80
0.55
0.46
0.35
Maximum
2.52
2.25
1.71
1.53
1.35
1.08
0.90
0.72
0.49
0.41
0.32
Part Number
SIG3012-R50
SIG3012-1R0
SIG3012-1R5
SIG3012-2R2
SIG3012-3R3
SIG3012-4R7
SIG3012-6R8
SIG3012-100
SIG3012-220
SIG3012-330
SIG3012-470
*
：
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 Lo 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 worse case operating
conditions. Circuit design , component placement, PWB 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.
DOCUMENT : SIG3012-XXX
REVISION
: A4
: 3 OF 11
SPECIFICATION FOR APPROVAL
6-1 Current Characteristic
0.6
0.5
INDUCTANCE(µH)
0.4
0.3
0.2
0.1
0.0
0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 4.8 5.2
DC BIAS(Amps)
SIG3012-1R5
2.70
2.25
INDUCTANCE(µH)
TEMP RISE(℃)
1.80
1.35
0.90
0.45
0.00
0.0
0.5
1.0
INDUCTANCE(µH)
TEMP RISE(℃)
INDUCTANCE(µH)
TEMP RISE(℃)
PAGE
SIG3012-R50
70
INDUCTANCE(µH)
60
TEMP RISE(℃)
50
40
30
20
10
0
1.2
1.0
0.8
SIG3012-1R0
100
80
60
TEMP RISE(℃)
TEMP RISE(℃)
TEMP RISE(℃)
TEMP RISE(℃)
0.6
INDUCTANCE(µH)
40
20
0
0.4
0.2
0.0
0.0
0.4
TEMP RISE (℃)
0.8
1.2
1.6 2.0 2.4
DC BIAS(Amps)
2.8
3.2
3.6
4.0
1.8
1.5
INDUCTANCE(µH)
1.2
100
80
60
SIG3012-2R2
100
80
60
40
20
0
0.9
0.6
0.3
0.0
0.0
0.3
INDUCTANCE(µH)
TEMP RISE (℃)
40
20
0
0.6
0.9
1.2
1.5
1.8
DC BIAS(Amps)
2.1
2.4
2.7
1.5
2.0
DC BIAS(Amps)
2.5
3.0
4.0
INDUCTANCE(µH)
3.0
SIG3012-3R3
100
INDUCTANCE(µH)
80
TEMP RISE(℃)
60
5.0
4.0
3.0
2.0
1.0
0.0
INDUCTANCE(µH)
TEMP RISE (℃)
SIG3012-4R7
100
80
60
40
20
0
2.0
1.0
0.0
INDUCTANCE(µH)
TEMP RISE (℃)
40
20
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)
8.4
7.0
INDUCTANCE(µH)
5.6
4.2
2.8
1.4
0.0
0.0
0.3
0.6
0.9
1.2
DC BIAS(Amps)
1.5
1.8
INDUCTANCE(µH)
TEMP.RISE(℃)
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2
DC BIAS(Amps)
100
80
TEMP RISE(℃)
60
40
20
0
SIG3012-100
SIG3012-6R8
12.0
INDUCTANCE(µH)
10.0
8.0
6.0
4.0
2.0
0.0
0.0
0.3
100
80
60
INDUCTANCE(µH)
TEMP RISE(℃)
40
20
0
0.6
0.9
DC BIAS(Amps)
1.2
1.5
DOCUMENT : SIG3012-XXX
REVISION
: A4
: 4 OF 11
100
80
60
21.0
14.0
7.0
0.0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
DC BIAS(Amps)
0.7
0.8
INDUCTANCE(µH)
TEMP.RISE(℃)
SPECIFICATION FOR APPROVAL
27.0
INDUCTANCE(µH)
22.5
18.0
13.5
9.0
4.5
0.0
0.0
0.2
0.4
0.6
DC BIAS(Amps)
0.8
1.0
INDUCTANCE(µH)
TEMP RISE(℃)
PAGE
SIG3012-330
SIG3012-220
100
80
TEMP RISE(℃)
60
40
20
0
42.0
35.0
INDUCTANCE(uH)
28.0
40
20
0
54.0
INDUCTANCE(µH)
45.0
36.0
27.0
18.0
9.0
0.0
0.0
0.1
0.2
SIG3012-470
100
80
60
TEMP RISE(℃)
INDUCTANCE(µH)
TEMP.RISE(℃)
40
20
0
0.3
0.4
0.5
0.6
0.7
DC BIAS(Amps)
TEMPRISE(℃)
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