SMT Power Inductors
Size 12.8 x 12.8 x 8.0 (mm)
Series/Type:
Ordering code:
Date:
B82477G
B82477G4473M003
June 2012
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Identification/Classification 1
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Identification/Classification 2
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Ordering code: (top right header bar)
Series/Type: (bottom right header bar)
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Department:
SMT Power Inductors
Size 12.8 x 12.8 x 8.0 (mm)
B82477G4473M003
B82477G
EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the information
Date:
June 2012
contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
SMT Power Inductors
Size 12.8 x 12.8 x 8.0 (mm)
B82477G4473M003
B82477G
Rated inductance 47 µH
Construction
■
Ferrite core
■
Magnetically shielded
■
Winding: enamel copper wire
■
Winding: soldered to terminals
Features
■
High mechanical stability
■
Temperature range up to +125 °C
■
Increased current handling capability
compared to standard device
B82477G4473M000 (I
sat
+30%)
■
Low DC resistance
■
Suitable for lead-free reflow soldering
■
RoHS-compatible
Applications
■
Filtering of supply voltages
■
Coupling, decoupling
■
DC/DC converters
Terminals
■
Base material CuSn6P
■
Layer composition Ni, Sn (lead-free)
■
Electro-plated
Marking
■
Marking on component:
Manufacturer, L value (µH, coded),
manufacturing date (YWWD)
■
Minimum data on reel:
Manufacturer, ordering code, L value,
quantity, date of packing
Delivery mode and packing unit
■
24-mm blister tape, wound on 330-mm
reel
■
Packing unit: 400 pcs./reel
June 2012
Please read Cautions and warnings and
Important notes at the end of this document.
Page 2 of 7
SMT Power Inductors
Size 12.8 x 12.8 x 8.0 (mm)
B82477G4473M003
B82477G
Dimensional Drawing and layout recommendation
1)
1)
5±0.2
7
8.5±0.2
1.5±0.2
8 max.
13.2
IND0493-B
Marking
12.8 max.
12.8 max.
1) Soldering area
IND0492-V-E
Dimensions in mm
Taping and packing
Blister tape and reel
1.75±0.1
4±0.1
Component
1.5+0.1
2±0.1
12.85±0.1
11.5±0.1
21±0.5
24±0.3
5.6
2.5±0.5
13±0.2
1.0
1.5 min.
8.7 max.
20±0.1
Direction of unreeling
IND0342-S-E
330±1
30.4 max.
IND0348-6
Dimensions in mm
Please read Cautions and warnings and
Important notes at the end of this document.
Page 3 of 7
75±1
June 2012
SMT Power Inductors
Size 12.8 x 12.8 x 8.0 (mm)
B82477G4473M003
B82477G
Technical data and measuring conditions
Rated inductance L
R
Rated temperature T
R
Rated current I
R
Saturation current I
Sat
DC resistance R
typ
Solderability (lead-free)
Resistance to soldering heat
Climatic category
Storage conditions
Weight
Measured with LCR meter Agilent 4284A at frequency f
L
,
0.1 V, +20 °C
+85 °C
Max. permissible DC with temperature increase of
≤40
K
at rated temperature
Permissible DC with inductance decrease
∆L/L
0
of approx. 10%
Measured at +20 °C
Dip and look method Sn95.5Ag3.8Cu0.7: +(245
5)
°C, (3
0.3)
s
Wetting of soldering area
90%
(based on IEC 60068-2-58)
+260 °C, 10 s
55/125/56 (to IEC 60068-1)
Mounted: –55 °C … +125 °C
Packaged: –25 °C … +40 °C,
≤75%
RH
Approx. 4 g
Characteristics and ordering codes
L
R
H
47
20% = M
Tolerance
f
L
MHz
0.1
I
R
A
3.00
I
sat
A
5.00
R
typ
0.051
R
max
0.055
B82477G4473M003
Ordering code
June 2012
Please read Cautions and warnings and
Important notes at the end of this document.
Page 4 of 7
SMT Power Inductors
Size 12.8 x 12.8 x 8.0 (mm)
B82477G4473M003
B82477G
Inductance derating versus DC superposition
Current derating I
OP
/I
R
versus ambient temperature T
A
(rated temperature T
R
= +85°C)
1.2
I
op
I
R
IND0508-Z
1.0
0.8
0.6
0.4
0.2
0
0
20
40
60
80 100 120
˚
C 150
T
A
June 2012
Please read Cautions and warnings and
Important notes at the end of this document.
Page 5 of 7
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