EPCOS B82477G4

SMT power inductors
Size 12.8 × 12.8 × 8.0 (mm)
Series/Type:
B82477G4
Date:
March 2008
Data Sheet
 EPCOS AG 2008. Reproduction, publication and dissemination of this publication, enclosures
hereto and the information contained therein without EPCOS’ prior express consent is prohibited.
SMT power inductors
B82477G4
Size 12.8 × 12.8 × 8.0 (mm)
Rated inductance 1 µH to 1000 µH
Rated current 0.55 A to 9.8 A
Construction
■
■
■
■
Ferrite core
Magnetically shielded
Winding: enamel copper wire
Winding soldered to terminals
Features
■
■
■
■
■
■
Temperature range up to 125 °C
Very high rated current
Low DC resistance
Suitable for lead-free reflow soldering
Qualification based on AEC-Q200
RoHS-compatible
Applications
■
■
■
■
DC/DC converters
EDP (Electronic Data Processing)
Consumer electronics
Industrial electronics
Terminals
■ Base material
Cu (L ≤ 10 µH), CuSn6P (L ≥ 15 µH)
■ 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
Please read Cautions and warnings and
Important notes at the end of this document.
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SMT power inductors
B82477G4
Size 12.8 × 12.8 × 8.0 (mm)
Dimensional drawing and layout recommendation
1)
5.6
5±0.2
1)
7
8.5±0.2
13.2
1.5±0.2
8 max.
IND0493-B
12.8 max.
Marking
12.8 max.
Dimensions in mm
1) Soldering area
IND0492-V-E
Taping and packing
Blister tape
Reel
75±1
1.0
330±1
1.5 min.
8.7 max.
Direction of unreeling
IND0342-S-E
Dimensions in mm
3
30.4 max.
IND0348-6
20±0.1
Please read Cautions and warnings and
Important notes at the end of this document.
2.5±0.5
13±0.2
11.5±0.1
2±0.1
24±0.3
1.5+0.1
12.85±0.1
Component
21±0.5
1.75±0.1
4±0.1
03/08
SMT power inductors
B82477G4
Size 12.8 × 12.8 × 8.0 (mm)
Technical data and measuring conditions
Rated inductance LR
Measured with LCR meter Agilent 4284A at frequency fL,
0.1 V, 20 °C
Rated temperature TR
85 °C
Rated current IR
Max. permissible DC with temperature increase of ≤ 40 K
at rated temperature
Saturation current Isat
Max. permissible DC with inductance decrease
∆L/L0 of approx. 10%
DC resistance Rmax
Measured at 20 °C
Solderability (lead-free)
Dip and look method Sn95.5Ag3.8Cu0.7:
(245 ±5) °C, (5 ±0.3) s
Wetting of soldering area ≥ 90%
(based on IEC 60068-2-58)
Resistance to soldering heat
260 °C, 10 s (based on IEC 60068-2-58)
Climatic category
55/125/56 (to IEC 60068-1)
Storage conditions
Mounted: –55 °C … +125 °C
Packaged: –25 °C … +40 °C, ≤ 75% RH
Weight
Approx. 4 g
Please read Cautions and warnings and
Important notes at the end of this document.
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03/08
SMT power inductors
B82477G4
Size 12.8 × 12.8 × 8.0 (mm)
Characteristics and ordering codes
LR
Tolerance fL
IR
Isat
Rmax
A
A
Ω
M 0.1
9.80
15.00
0.0070
B82477G4102M000
2.2
0.1
8.00
11.00
0.0100
B82477G4222M000
3.9
0.1
7.50
9.50
0.0125
B82477G4392M000
4.7
0.1
6.80
8.60
0.0140
B82477G4472M000
5.6
0.1
6.70
8.40
0.0142
B82477G4562M000
6.8
0.1
6.50
7.30
0.0185
B82477G4682M000
10
0.1
5.40
6.40
0.022
B82477G4103M000
15
0.1
4.50
5.25
0.027
B82477G4153M000
22
0.1
3.60
4.25
0.038
B82477G4223M000
33
0.1
3.00
3.50
0.053
B82477G4333M000
47
0.1
2.50
3.00
0.082
B82477G4473M000
68
0.1
2.10
2.45
0.120
B82477G4683M000
82
0.1
1.90
2.25
0.145
B82477G4823M000
100
0.1
1.70
1.95
0.165
B82477G4104M000
150
0.1
1.42
1.70
0.225
B82477G4154M000
220
0.1
1.16
1.35
0.380
B82477G4224M000
330
0.1
0.95
1.15
0.600
B82477G4334M000
470
0.1
0.80
0.95
0.790
B82477G4474M000
680
0.1
0.68
0.78
1.24
B82477G4684M000
1000
0.1
0.55
0.65
1.68
B82477G4105M000
µH
MHz
1.0
±20%
^
Sample kit available. Ordering code: B8247XX001
For more information refer to chapter “Sample kits”.
Please read Cautions and warnings and
Important notes at the end of this document.
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Ordering code
SMT power inductors
B82477G4
Size 12.8 × 12.8 × 8.0 (mm)
Impedance |Z| versus frequency f
measured with impedance analyzer
Agilent 4294A, typical values at 20 °C
Inductance L versus DC load current IDC
measured with LCR meter Agilent 4275A,
typical values at 20 °C
IND0860-Z
10 6
B82477G4
Ω
IND0852-V
10 3
µH 1000 µH
|Z| 10 5
B82477G4
L
100 µH
10 2
10 4
10 3
10 µH
10 1
10 2
10 1
10 0
10
_1
10 3
10 4
10 5
10 6
1 µH
10 0
1000 µH
100 µH
10 µH
1 µH
10
10 7 Hz 10 8
f
_1
10
_1
Current derating Iop/IR
versus ambient temperature TA
(rated temperature TR = 85 °C)
IND0508-Z
1.2
I op
IR
1.0
0.8
0.6
0.4
0.2
0
0
20
40
60
80 100 120 ˚C 150
TA
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10 0
10 1
A 10 2
I DC
Cautions and warnings
■ Please note the recommendations in our Inductors data book (latest edition) and in the data
sheets.
– Particular attention should be paid to the derating curves given there.
– The soldering conditions should also be observed. Temperatures quoted in relation to wave
soldering refer to the pin, not the housing.
■ If the components are to be washed varnished it is necessary to check whether the washing
varnish agent that is used has a negative effect on the wire insulation, any plastics that are used,
or on glued joints. In particular, it is possible for washing varnish agent residues to have a
negative effect in the long-term on wire insulation.
■ The following points must be observed if the components are potted in customer applications:
– Many potting materials shrink as they harden. They therefore exert a pressure on the plastic
housing or core. This pressure can have a deleterious effect on electrical properties, and in
extreme cases can damage the core or plastic housing mechanically.
– It is necessary to check whether the potting material used attacks or destroys the wire
insulation, plastics or glue.
– The effect of the potting material can change the high-frequency behaviour of the components.
■ Ferrites are sensitive to direct impact. This can cause the core material to flake, or lead to
breakage of the core.
■ Even for customer-specific products, conclusive validation of the component in the circuit can
only be carried out by the customer.
Please read Cautions and warnings and
Important notes at the end of this document.
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03/08
Important notes
The following applies to all products named in this publication:
1. Some parts of this publication contain statements about the suitability of our products for
certain areas of application. These statements are based on our knowledge of typical
requirements that are often placed on our products in the areas of application concerned. We
nevertheless expressly point out that such statements cannot be regarded as binding
statements about the suitability of our products for a particular customer application.
As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with
them than the customers themselves. For these reasons, it is always ultimately incumbent on the
customer to check and decide whether an EPCOS product with the properties described in the
product specification is suitable for use in a particular customer application.
2. We also point out that in individual cases, a malfunction of electronic components or failure
before the end of their usual service life cannot be completely ruled out in the current state
of the art, even if they are operated as specified. In customer applications requiring a very
high level of operational safety and especially in customer applications in which the malfunction
or failure of an electronic component could endanger human life or health (e.g. in accident
prevention or life-saving systems), it must therefore be ensured by means of suitable design of
the customer application or other action taken by the customer (e.g. installation of protective
circuitry or redundancy) that no injury or damage is sustained by third parties in the event of
malfunction or failure of an electronic component.
3. The warnings, cautions and product-specific notes must be observed.
4. In order to satisfy certain technical requirements, some of the products described in this
publication may contain substances subject to restrictions in certain jurisdictions (e.g.
because they are classed as hazardous). Useful information on this will be found in our
Material Data Sheets on the Internet (www.epcos.com/material). Should you have any more
detailed questions, please contact our sales offices.
5. We constantly strive to improve our products. Consequently, the products described in this
publication may change from time to time. The same is true of the corresponding product
specifications. Please check therefore to what extent product descriptions and specifications
contained in this publication are still applicable before or when you place an order.
We also reserve the right to discontinue production and delivery of products.
Consequently, we cannot guarantee that all products named in this publication will always be
available.
The aforementioned does not apply in the case of individual agreements deviating from the
foregoing for customer-specific products.
6. Unless otherwise agreed in individual contracts, all orders are subject to the current version
of the “General Terms of Delivery for Products and Services in the Electrical Industry”
published by the German Electrical and Electronics Industry Association (ZVEI).
7. The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CSMP, CSSP, CTVS, DSSP, MiniBlue,
MKK, MLSC, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, SIFERRIT, SIFI, SIKOREL,
SilverCap, SIMDAD, SIMID, SineFormer, SIOV, SIP5D, SIP5K, ThermoFuse, WindCap are
trademarks registered or pending in Europe and in other countries. Further information will be
found on the Internet at www.epcos.com/trademarks.
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