Inductors
RF chokes, BC+ series
Series/Type:
Ordering code:
Date:
Version:
B78108E, B78148E
July 2015
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Identification/Classification 1
Inductors
(header 1 + top left bar):
Identification/Classification 2
RF chokes, BC+ series
(header 2 + bottom left header bar):
Ordering code: (top right header bar)
Series/Type: (bottom right header bar)
B78108E, B78148E
Preliminary data (optional):
Department:
SZ MAG PD IN/T
Date:
July 2015
Version:
EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the information
contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
Inductors
RF chokes, BC+ series
BC chokes
Rated inductance 0.1
μH
… 100
μH
Rated current 640 mA .. 7300 mA
Construction
Ferrite drum core
Winding: enamel copper wire
Flame-retardant lacquer coating
Features
Very high rated current
High saturation behaviour
High self-resonance frequency
Suitable for wave soldering
RoHS-compatible
B78108E, B78148E
B78108E
Applications
DC-DC converter
Filtering of supply voltage & battery charger (EMI)
RF blocking and filtering
Decoupling and interference suppression
For telecommunications, LED and energy-saving
lamps, solar LED lamps, entertainment electronics
B78148E
Terminals
Radially bent to 5mm lead spacing (B78148E)
Central axial leads (B78108E)
Base material Cu
Electroplated with nickel and pure tin
Marking
Inductance indicated by color bands in accordance
with IEC 60062
Delivery mode and packing units
Taped, Ammo and reel packing
Packing units:
Ammo
(pcs./pack.)
Axial
2500
Radial
2500
SZ MAG PD IN/T
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 8
Reel
(pcs./reel)
5000
2000
July 2015
Inductors
RF chokes, BC+ series
Dimensional drawings
B78108E (axial leads, taped)
Dimensions in mm
B78108E, B78148E
Minimum lead spacing 12.5 mm
B78148E (central radial leads, taped)
Dimensions in mm
Packing
Dimensions in mm
n (mm):
w (mm):
SZ MAG PD IN/T
axial 72 + 1, radial 42 + 1
axial 84 max., radial 54 max.
L x W x H (max. mm):
axial: 275 x 80 x 140, radial: 340 x 50 x 210
July 2015
Page 3 of 8
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Inductors
RF chokes, BC+ series
Technical data and measuring conditions
Rated inductance L
R
Measured with LCR meter Agilent 4284A
or impedance analyzer Agilent 4294A
Measuring current:
Measuring temperature:
B78108E, B78148E
1 mA
+20 ºC
Q factor Q
min
Rated temperature T
R
Rated current I
R
Saturation current I
sat
DC resistance R
max
Resonance frequency f
res,min
Solderability (lead-free)
Resistance to soldering heat
Tensile strength of leads
Climatic category
Storage conditions
Weight
Mounting information:
Measured with impedance analyzer Agilent 4294A, +20 °C
+40 °C
Maximum permissible DC current based on rated temperature
of +40 °C and component temperature of max. +125 °C
Max. permissible DC with inductance decrease
∆L/L
0
of approx. 10%, at +20 ºC (Agilent 4284A and 42841A)
Measured at +20 ºC
Measured with Agilent 4294A or 8753ES, +20 °C
Sn95.5Ag3.8Cu0.7:
Wetting of soldering area:
(+245 ±5) °C, (3 ±0.3) s
≥
90% (to IEC 60068-2-20, test Ta)
(+260 ±5)°C, 10 s (to IEC 60068-2-20, test Tb)
≥
20 N (to IEC 60068-2-21, test Ua)
55/125/56 (to IEC 60068-1)
Mounted: –55 °C ... +125 °C
Packaged: –25 °C ... +40 °C,
≤
75% RH
Approx. 0.38 g
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.
SZ MAG PD IN/T
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 8
July 2015
Inductors
RF chokes, BC+ series
Characteristics and ordering codes
L
R
μH
0.1
0.15
0.22
0.33
0.47
0.68
1.0
1.5
2.2
3.3
4.7
6.8
10
15
22
33
47
68
100
±5%
≙
J
±10%
≙
K
±20%
≙
M
Tolerance
f
L
MHz
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.1
0.1
0.1
0.1
0.1
0.1
Q
min
50
50
55
60
60
60
60
60
50
45
45
40
35
40
40
50
40
45
60
f
Q
MHz
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
0.796
0.796
0.796
0.796
0.796
0.796
I
R
mA
7300
6500
5900
5300
5000
4600
4150
3800
3400
3050
2750
2450
2250
1600
1300
1050
950
780
640
I
sat
mA
17000
14500
12200
10100
8500
7100
5800
4800
4000
3250
2700
2300
2000
1450
1250
1000
870
720
580
R
max
Ω
0.015
0.017
0.019
0.023
0.027
0.031
0.038
0.047
0.057
0.073
0.085
0.105
0.136
0.230
0.350
0.550
0.680
0.900
1.450
B78108E, B78148E
f
res, min
Ordering code
1)
MHz (reel packing)
2)
700
650
610
480
400
360
260
235
150
75
35
25
20
15
12
B781*8E1101M000
B781*8E1151M000
B781*8E1221M000
B781*8E1331M000
B781*8E1471M000
B781*8E1681M000
B781*8E1102K000
B781*8E1152K000
B781*8E1222K000
B781*8E1332K000
B781*8E1472K000
B781*8E1682K000
B781*8E1103K000
B781*8E1153K000
B781*8E1223K000
9.0 B781*8E1333J000
8.0 B781*8E1473J000
6.5 B781*8E1683J000
6.0 B781*8E1104J000
1)
Replace the * by code number “0” for axial taping or by “4” for radial taping.
2)
For Ammo pack the last digit has to be a “9”. Example: B78108E1223K009
SZ MAG PD IN/T
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 8
July 2015
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