VHF Chokes
B82500
VHF chokes with ferrite core
Rated voltage 250 V dc/ac
Rated current 0,2 to 2 A
Rated inductance 120 to 3900
µH
Construction
s
Ferrite cylinder core
s
Winding: low-capacitance, multilayer,
enamel copper wire
s
Polyester insulating sleeve
Features
s
High resonance frequency
s
High inductance ratings
Applications
s
RF blocking and filtering
s
Interference suppression in small appliances
Marking
L
R
and
I
R
in clear text
Delivery mode
Bulk
Dimensional drawing
203
04/00
VHF Chokes
B82500
Characteristics and ordering codes
For further technical data
see page 194
I
R
A
0,2
0,5
1,0
2,0
L
R
µH
3900
820
330
120
f
res
MHz
1,8
3,0
4,2
5,8
R
typ
Ω
20
2,5
0,6
0,15
Approx.
weight
g
7
7
7
7
Ordering code
B82500-C-A2
B82500-C-A5
B82500-C-A8
B82500-C-A10
Impedance |Z |
versus frequency
f
(typical values)
B82500-C-
204
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VHF Chokes
B82114
VHF chokes for power line applications
Rated voltage 500 V dc/ac
1)
Rated current max. 1 A
Construction
s
Round 6-aperture ferrite core
s
With or without insulating sleeve
Features
s
The selected core material provides
maximum impedance in the relevant
frequency range of 50 to 200 MHz
s
An insulating sleeve prevents
any turn-to-turn short circuits
Applications
s
Broadband interference suppression in
electrical systems and equipment in the
RF and VHF range
s
Reduction of radiated interference in
broadcasting and TV receivers
Delivery mode
Bulk
Dimensional drawing
Type B82114-R-A … (without insulating sleeve)
Type B82114-R-C … (with insulating sleeve)
Tinned leads,
wire diameter 0,5 + 0,15 mm
1) 500 Vac only with insulating sleeve
∗)
Insulating sleeve
205
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VHF Chokes
B82114
Technical data
Test voltage
Rated current
Climatic category
2500 Vac, 1 min (only with insulation)
max. 1 A
In accordance with IEC 60068-1
B82114-R-A: 55/120/21 (– 55
°C/+120 °C/21
days damp heat test)
B82114-R-C: 55/125/56 (– 55
°C/+125 °C/56
days damp heat test)
Characteristics and ordering codes
f
res
MHz
60
100
|Z |
at
f
res
Ω
900
800
Color code Number
of turns
brown
green
2,5
2,5
Gewicht
ca.
g
1,3
1,3
Version
Ordering code
non-insulated
insulated
non-insulated
insulated
B82114-R-A4
B82114-R-C4
B82114-R-A1
B82114-R-C1
Impedance |Z |
versus frequency
f
(typical values)
I
v
: dc magnetic bias
B82114-R-
10
3
|
Z
|
Ω
SSB0557-Z
10
2
-A4/-C4 (
Ι
v
= 50 mA)
-A1/-C1 (
Ι
v
= 250 mA)
10
1 2
10
10
3
10
4
10
5
kHz 10
6
f
206
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VHF Chokes
Packing
VHF chokes
Reel packing for type B82111-E (for taping see data sheet
page 198)
Reel packing for types B82131 … B82134 (for taping see data sheet
page 195)
Label
Type
B82111-E
B82131, B82132
B82133, B82134
Reel dimensions (mm)
Packing units
Pieces/reel
1000
2000
1000
207
04/00
n+1
97
95
95
W
max.
109
107
107
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