EPCOS B78108S1123K000 Inductor Datasheet

Inductors
RF chokes, BC series
Series/Type:
B78108S, B78148S
Date:
June 2012
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¤EPCOS AG 2012. Reproduction, publication and dissemination of this publication, enclosures
hereto and the information contained therein without EPCOS’ prior express consent is prohibited.
RF chokes
B78108S, B78148S
BC series, 4 x 9.2 (mm)
BC chokes (Bobbin Core)
Rated inductance 1 ... 4700 μH
Rated current 55 ... 1200 mA
Construction
B78108S
■ Ferrite drum core
■ Winding: enamel copper wire
■ Flame-retardant lacquer coating
Features
■
■
■
■
■
Wide inductance range
Suitable for general-purpose application
Special versions available
Suitable for wave soldering
RoHS-compatible
B78148S
Applications
■ RF blocking and filtering
■ Decoupling and interference suppression
■ For antenna systems, automotive electronics,
energy-saving lamps, entertainment electronics
Terminals
■
■
■
■
Central axial leads (B78108S)
Radially bent to 5 mm lead spacing (B78148S)
Base material Cu
Electroplated with nickel and pure tin
Marking
Inductance indicated by color bands to IEC 60062
Delivery mode and packing units
■ Taped, Ammo and reel packing
■ Packing units:
Ammo
(pcs./pack.)
Reel
(pcs./reel)
Axial
2500
5000
Radial
2500
2000
Please read Cautions and warnings and
Important notes at the end of this document.
2
06/12
RF chokes
B78108S, B78148S
BC series, 4 x 9.2 (mm)
Dimensional drawings
B78108S (axial leads, taped)
Dimensions in mm
9.2 max.
(IEC 60294)
3.5 min.
6±0.5
5±0.25 5±0.25
ø4 max.
ø0.8 max.
65±1
53±2
11.5 max.
lacquered
Minimum lead spacing 12.5 mm
IND0429-B-E
1.3 max.
2 max.
1.3 max.
insulated
Thickness of tape
0.7±0.2
_ 0.5
9 +0.75
6 min.
_ 0.5
18 +1
0.5 max.
11.5 max.
lacquered
0.8 max.
16±0.5
2 max.
30.5 max.
ø4 max.
9.2 max.
(IEC 60294)
B78148S (central radial leads, taped)
ø4±0.2
_ 0.1
5 +0.6
3.8±0.7
IND0629-B
12.7±0.3
IND0633-N-E
n
w
30
H
30
ø360 _ 1
ø30.5±0.15
ø82+1
ø90
Packing
Label
L
30
W
IND0452-V-E
L u W u H (max. mm):
Axial: 275 u 80 u 140, radial: 340 u 50 u 210
n (mm): Axial 72 +1, radial 42 +1
w (mm): Axial 84 max., radial 54 max.
Please read Cautions and warnings and
Important notes at the end of this document.
IND0631-B-E
3
06/12
RF chokes
B78108S, B78148S
BC series, 4 x 9.2 (mm)
Technical data and measuring conditions
Rated inductance LR
Measured with LCR meter Agilent 4284A
or impedance analyzer Agilent 4294A
Measuring frequency:
LR d 10 PH
= 1 MHz
10 PH < LR d 4700 PH = 100 kHz
Measuring current:
d 1 mA
Measuring temperature: +20 °C
Q factor Qmin
Measured with precision impedance analyzer Agilent 4294A,
+20 °C
Rated temperature TR
+40 qC
Rated current IR
Maximum permissible DC current at rated temperature
Inductance decrease 'L/L0
d10% (referred to initial value) at IR, +20 qC
DC resistance Rmax
Measured at 20 qC
Resonance frequency fres,min Measured with Agilent 4294A or 8753ES, +20 °C
Solderability (lead-free)
Sn95.5Ag3.8Cu0.7: +(245 r5) °C, (3 r0.3) s
Wetting of soldering area t90%
(to IEC 60068-2-20, test Ta)
Resistance to soldering heat
+(260 r5) °C, 10 s (to IEC 60068-2-20, test Tb)
Tensile strength of leads
t20 N (to IEC 60068-2-21, test Ua)
Climatic category
55/125/56 (to IEC 60068-1)
Storage conditions
Mounted: –55 °C … +125 °C
Packaged: –25 °C … +40 °C, d75% RH
Weight
Approx. 0.38 g
Mounting information
When bending the leads, take care that the start-of-winding areas at the face ends (protected by
glue and lacquer) are not subjected to any mechanical stress.
Please read Cautions and warnings and
Important notes at the end of this document.
4
06/12
RF chokes
B78108S, B78148S
BC series, 4 x 9.2 (mm)
Characteristics and ordering codes
fQ
IR
Rmax
fres, min
MHz
mA
:
MHz
Ordering code 2)
(reel packing) 3)
55
7.96
1200
0.16
205
B781*8S1102K000
1.2
55
7.96
1150
0.18
185
B781*8S1122K000
1.5
55
7.96
1100
0.20
165
B781*8S1152K000
1.8
55
7.96
1030
0.22
155
B781*8S1182K000
2.2
55
7.96
1000
0.25
140
B781*8S1222K000
2.7
60
7.96
940
0.26
125
B781*8S1272K000
3.3
60
7.96
900
0.29
115
B781*8S1332K000
3.9
60
7.96
850
0.31
105
B781*8S1392K000
4.7
60
7.96
820
0.34
95
B781*8S1472K000
5.6
60
7.96
780
0.38
85
B781*8S1562K000
6.8
65
7.96
670
0.51
75
B781*8S1682K000
8.2
65
7.96
690
0.48
50
B781*8S1822K000
10
70
2.52
680
0.49
35
B781*8S1103K000
12
70
2.52
650
0.55
30
B781*8S1123K000
15
60
2.52
610
0.60
20
B781*8S1153K000
18
60
2.52
580
0.67
17
B781*8S1183K000
22
55
2.52
560
0.74
13
B781*8S1223K000
27
55
2.52
530
0.83
10
B781*8S1273K000
33
55
2.52
500
0.92
9.0
B781*8S1333K000
39
50
2.52
470
1.02
8.0
B781*8S1393K000
LR
Tolerance1)
Qmin
PH
1.0
r10%
^
K
BC chokes with temperature range up to +140 °C on request.
BC chokes up to 33 PH with higher resonance frequency on request.
1) Closer tolerances on request.
2) Replace the * by code number »0« for axial taping or by »4« for radial taping.
3) For Ammo pack the last digit has to be a »9«. Example: B78108S1102K009
Please read Cautions and warnings and
Important notes at the end of this document.
5
06/12
RF chokes
B78108S, B78148S
BC series, 4 x 9.2 (mm)
Characteristics and ordering codes
Tolerance1)
fQ
IR
Rmax
fres, min
MHz
mA
:
MHz
Ordering code 2)
(reel packing) 3)
45
2.52
450
1.10
7.5
B781*8S1473J000
56
40
2.52
430
1.23
7.0
B781*8S1563J000
68
40
2.52
410
1.35
6.5
B781*8S1683J000
82
35
2.52
390
1.54
6.0
B781*8S1823J000
100
70
0.796
370
1.70
5.0
B781*8S1104J000
120
70
0.796
300
2.40
4.5
B781*8S1124J000
150
70
0.796
280
2.80
4.2
B781*8S1154J000
180
70
0.796
270
3.00
3.9
B781*8S1184J000
220
70
0.796
250
3.30
3.7
B781*8S1224J000
270
70
0.796
200
5.70
2.8
B781*8S1274J000
330
70
0.796
190
6.40
2.7
B781*8S1334J000
390
70
0.796
180
7.00
2.4
B781*8S1394J000
470
70
0.796
170
7.90
2.2
B781*8S1474J000
560
60
0.796
160
8.80
2.0
B781*8S1564J000
680
55
0.796
150
10.0
1.9
B781*8S1684J000
820
50
0.796
140
12.0
1.6
B781*8S1824J000
1000
50
0.252
130
14.0
1.6
B781*8S1105J000
1200
50
0.252
115
17.5
1.3
B781*8S1125J000
1500
50
0.252
100
23.0
1.25
B781*8S1155J000
1800
50
0.252
95
26.0
1.2
B781*8S1185J000
2200
40
0.252
80
34.7
1.1
B781*8S1225J000
2700
40
0.252
75
40.0
1.0
B781*8S1275J000
3300
40
0.252
62
59.5
0.9
B781*8S1335J000
3900
40
0.252
59
66.0
0.8
B781*8S1395J000
4700
35
0.252
55
78.0
0.7
B781*8S1475J000
LR
Qmin
PH
47
r5%
^
J
BC chokes with temperature range up to +140 °C on request.
1) Closer tolerances on request.
2) Replace the * by code number »0« for axial taping or by »4« for radial taping.
3) For Ammo pack the last digit has to be a »9«. Example: B78108S1473J009
Please read Cautions and warnings and
Important notes at the end of this document.
6
06/12
RF chokes
B78108S, B78148S
BC series, 4 x 9.2 (mm)
Inductance L versus DC load current IDC
measured with LCR meter Agilent 4284A,
typical values at +20 °C
Impedance |Z| versus frequency f
measured with impedance analyzer Agilent
4294A or S-parameter network analyzer
Agilent 8753ES, typical values at +20 °C
IND0122-K
10 6
Ω
| Z|
IND0123-X
10 4
B781*8S
μH
L
10 5
B781*8S
4700 μH
1000 μH
10 3
10 4
100 μH
10 2
10 3
10 μH
10 1
10 2
1 μH
10 μH
100 μH
1000 μH
4700 μH
10 1
10 0 5
10
10
6
10
7
10
8
1 μH
10 0
Hz 10
f
10
9
Q factor versus frequency f
measured with impedance analyzer
Agilent 4294A, typical values at +20 °C
10
_2
10
_1
10 0
A 10 1
I DC
Current derating Iop/IR
versus ambient temperature TA
(rated temperature TR = +40 qC)
IND0124-C
150
_1
IND0552-S-E
1.2
B781*8S
Iop
IR
Q
1.0
0.8
100
1 μH
10 μH
100 μH
1000 μH
4700 μH
0.6
0.4
50
0.2
0 4
10
10 5
10 6
10 7
0
Hz 10 8
f
0
20
40
60
80
100
˚C
TA
7
06/12
140
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.
Washing processes may damage the product due to the possible static or cyclic mechanical
loads (e.g. ultrasonic cleaning). They may cause cracks to develop on the product and its parts,
which might lead to reduced reliability or lifetime.
■ 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.
8
06/12
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, CeraLink, CSMP, CSSP, CTVS,
DeltaCap, DigiSiMic, DSSP, FilterCap, FormFit, MiniBlue, MiniCell, MKD, MKK, MLSC,
MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, SIFERRIT, SIFI, SIKOREL,
SilverCap, SIMDAD, SiMic, 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.
9
06/12
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