Chokes and inductors
For high frequency and EMC
RF chokes, MCC series
Series/Type:
B78108T / B78148T
November 2005
7f
fÁRspp
Date:
©
EPCOS AG 2005. Reproduction, publication and dissemination of this publication and the infor-
mation contained therein without EPCOS’ prior express consent is prohibited.
RF chokes
MCC series
MCC choke (Mini Cylinder Core)
Rated current 85 to 1120 mA
Rated inductance 0.1 to 100
N
H
Construction
■
Ceramic or ferrite cylinder core
■
Winding: enamel copper wire
■
Flame-retardant lacquer coating
B78108T
B78148T
Features
■
■
■
■
Low total height
Low inductance
High resonance frequency
RoHS-compatible (see page 6)
Applications
■
RF blocking
■
Decoupling and interference suppression
■
For antenna systems, automotive electronics,
telecommunications, entertainment electronics
Terminals
■
Central axial leads, lead-free tinned
■
Radially bent to 5 mm lead spacing
Marking
Inductance indicated by color bands to IEC 60062
Delivery mode
Taped, Ammo and reel packing (see page 8)
Dimensional drawings
B78108T (axial leads, taped)
65±1
53
ø0.6 max.
ø3.3 max.
B78148T (central radial leads, taped)
12,5
7 max.
(IEC 60294)
6±0.5
5±0.25 5±0.25
16
3.5 min.
9.8 max.
lacquered/lackiert
5
12,7
IND0111-L
IND0427-U
Minimum lead spacing 10 mm
Approx. weight 0.25 g
Please read the
Important notes
at the end of
this document.
Schematic drawing (details page 8)
2
11/05
RF chokes
MCC series
Characteristics and ordering codes
For further technical data see page 6.
L
R
μH
0.10
0.12
0.15
0.18
0.22
0.27
0.33
0.39
0.47
0.56
0.68
0.82
Toler-
rance
1)
±
10 %
^
K
Q
min
f
Q
MHz
40
40
38
35
35
35
35
35
35
35
35
35
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
I
R
mA
1120
1080
1020
1000
990
910
830
790
750
700
530
500
R
max
Ω
0.13
0.145
0.155
0.17
0.195
0.215
0.24
0.27
0.315
0.34
0.48
0.55
f
res, min
MHz
600
570
500
460
420
380
330
300
280
260
240
230
B78108T
B78148T
Ordering code
2)
(reel packing)
3)
B781
*
8T3101K000
B781
*
8T3121K000
B781
*
8T3151K000
B781
*
8T3181K000
B781
*
8T3221K000
B781
*
8T3271K000
B781
*
8T3331K000
B781
*
8T3391K000
B781
*
8T3471K000
B781
*
8T3561K000
B781
*
8T3681K000
B781
*
8T3821K000
Ceramic cylinder core
1) Closer tolerances upon request.
2) Replace the asterisk
*
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: B78108T3101K009
Please read the
Important notes
at the end of
this document.
3
11/05
RF chokes
MCC series
Characteristics and ordering codes
(continued)
For further technical data see page 6.
L
R
μH
1.0
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
Toler-
rance
1)
±
10 %
^
K
Q
min
f
Q
MHz
35
40
40
40
40
40
40
40
40
45
45
50
50
55
55
55
60
60
60
60
60
60
60
60
60
25.2
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
I
R
mA
630
610
570
540
520
480
420
400
380
260
250
240
230
190
185
175
170
160
150
140
100
100
95
90
85
R
max
Ω
0.25
0.25
0.30
0.30
0.35
0.40
0.50
0.55
0.65
1.30
1.45
1.60
1.70
2.40
2.70
2.90
3.20
3.60
4.10
4.50
8.50
8.80
10.0
11.5
12.5
f
res, min
MHz
180
170
150
130
120
110
110
100
90
75
70
65
60
50
45
40
30
27
24
22
20
18
15
14
11
B78108T
B78148T
Ordering code
2)
(reel packing)
3)
Ferrite cylinder core
B781
*
8T1102K000
B781
*
8T1122K000
B781
*
8T1152K000
B781
*
8T1182K000
B781
*
8T1222K000
B781
*
8T1272K000
B781
*
8T1332K000
B781
*
8T1392K000
B781
*
8T1472K000
B781
*
8T1562K000
B781
*
8T1682K000
B781
*
8T1822K000
B781
*
8T1103K000
B781
*
8T1123K000
B781
*
8T1153K000
B781
*
8T1183K000
B781
*
8T1223K000
B781
*
8T1273K000
B781
*
8T1333K000
B781
*
8T1393K000
B781
*
8T1473K000
B781
*
8T1563K000
B781
*
8T1683K000
B781
*
8T1823K000
B781
*
8T1104K000
1) Closer tolerances upon request.
2) Replace the asterisk
*
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: B78108T1102K009
Please read the
Important notes
at the end of
this document.
4
11/05
RF chokes
MCC series
Impedance |Z |
versus frequency f
measured with impedance analyzer
HP 4191A / HP 4194A
10
6
Ω
B781*8T
|
Z
|
10
5
IND0112-N
B78108T
B78148T
Inductance L
versus DC load current I
DC
measured with LCR meter
HP 4275A
10
3
µH
L
10
2
10 µH
10
1
B781*8T
100 µH
IND0113-B
10
4
10
3
1 µH
10
0
10
2
0,1 µH
1 µH
10 µH
100 µH
10
7
10
1
10
_
1
0,1 µH
10
0 6
10
10
8
Hz 10
f
9
10
_
2
10
_
2
10
_
1
10
0
A 10
1
I
DC
Q factor
versus frequency f
measured with impedance analyzer
HP 4194A
100
B781*8T
Q
IND0114-H
Current derating I
op
/I
R
versus ambient temperature T
A
(rated temperature T
R
= 40
°C)
1.2
IND0552-S-E
I
op
I
R
1.0
0.8
0,1 µH
1 µH
10 µH
100 µH
50
0.6
0.4
0.2
0
10
4
10
5
10
6
10
7
Hz 10
8
f
0
0
20
40
60
80
100
˚C 140
T
A
5
11/05
Please read the
Important notes
at the end of
this document.
PCB Design
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