kHz Band Ceramic IF Filters
(KBF-R, RL, P, PL Series)
Features
• Small and high selectivity
• Low insertion loss
• Adjustment free
• Various pass band width available
How to Order
KBF - 455 RL - 15 A
q
w
e
r
t
qModel(Kyocera
Bulk Filter)
wCenter
Frequency[450/455kHz available]
eNo.
of Element
(R, RL : 6 Elements, P, PL : 4 Elements)
rPass
Band-Width (kHz) at 6 dB
6 elements
4 elements
Applications
• Walkie & Talkie
• Car audio (AM radio section)
• Cordless phone
• Remote control receiver
15, 10, 9, 7, 6, 4
15, 10, 9, 7, 6, 4
tSelectivity
A
AS
High Selectivity
Super High Selectivity
Dimensions
KBF-RL Series(6 elements)
11.0
Marking
7.0
8.0
2.2
7.5
∗
(3.0)
∗∗∗∗∗
(Unit : mm)
Test Circuit
filter
R
1
Output
Input Ground
Rg
R
2
C
S.S.G.
RF
V.M.
KBF-PL Series(4 elements)
Marking
7.2
∗∗
3.0
∗∗∗∗∗
7.0
0.15
t
r
w
e
q
0.7
∗∗∗
0.5
∗∗∗∗
q
w
e
r
t
Input
Output
Ground
Ground
Ground
0.15
e q
w
0.7
∗∗∗
0.5
∗∗∗∗
q
Input
w
Output
e
Ground
∗
R type
: 8.4
∗∗
P type
: 8.0
∗∗∗
R, P type : 0.8
∗∗∗∗
R, P type : 0.6
∗∗∗∗∗
R, P type : 4.0
4.3
7.0
4.3
7.0
R
1
+Rg=R
2
=Rating
impedance of input/output matching
• C<50pF
(Including stray capacitance and input capacitance)
0.9
0.8
2.7
1.2
2.9 2.9 2.6
1.2
Specifications(455kHz)
KBF-RL series(6 elements)
Parts No.
KBF-455RL-15A
KBF-455RL-12A
KBF-455RL-10A
KBF-455RL- 9A
KBF-455RL- 7A
KBF-455RL- 6AS
KBF-455RL- 4AS
KBF-PL series(4 elements)
Parts No.
KBF-455PL-15A
KBF-455PL-12A
KBF-455PL-10A
KBF-455PL- 7A
KBF-455PL- 6AS
KBF-455PL- 4AS
Center Frequency(f
0
)
Ripple
Pass Band Width
6dB
±7.5kHz
min
±6.0kHz
min
±5.0kHz
min
±3.5kHz
min
±3.0kHz
min
±2.0kHz
min
40dB
±15kHz
max
±12.5kHz
max
±12.0kHz
max
±9kHz
max
±9kHz
max
±7.5kHz
max
Stop Band
Attenuation
Center Frequency(f
0
)
Ripple
Pass Band Width
6dB
±7.5kHz
min
±6.0kHz
min
±5.0kHz
min
±4.5kHz
min
±3.5kHz
min
±3.0kHz
min
±2.0kHz
min
50dB
±15kHz
max
±12.5kHz
max
±12kHz
max
±10kHz
max
±9kHz
max
±9kHz
max
±7.5kHz
max
Stop Band
Attenuation
Insertion
Loss
Input/Ouput
Operating
Matching
Temperature
Impedance
1.5kΩ
37dB min
6dB max
2.0kΩ
55dB min
−20°C
to
+80°C
455kHz±1.5kHz
2dB max
455kHz±1.0kHz
Insertion
Loss
Input/Ouput
Operating
Matching
Temperature
Impedance
1.5kΩ
27dB min
6dB max
35dB min
2.0kΩ
−20°C
to
+80°C
455kHz±1.5kHz
2dB max
455kHz±1.0kHz
Remarks) Center Frequency is 450/455kHz available
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