KHz Band Ceramic IF Filters
KBF-RL, PL Series
FEATURES
•
•
•
•
Small and high selectivity
Low insertion loss
Adjustment free
Various pass band width available
APPLICATIONS
•
•
•
•
TEST CIRCUIT
filter
Output
R1
Walkie & Talkie
Car audio (AM radio section)
Cordless phone
Remote control receiver
Input Ground
Rg
HOW TO ORDER
C
RF
V.M.
R2
S.S.G.
KBF - 455 RL - 20 A
Selectivity
A = High selectivity
AS = Super high selectivity
R1+Rg=R2=Rating impedance of input/output matching
Pass Band-Width
(kHz) at 6dB
• C<50pF
(Including stray capacitance and input capacitance)
DIMENSIONS
KBF-RL Series (6 Elements)
11.0 (0.433)
Marking
KBF-PL Series (4 Elements)
7.0
(0.276)
8.0
(0.315)
7.5
(0.295)
4.3
(0.169)
6 Elements = 20, 15, 10, 9,
7, 6, 4
4 Elements = 25, 20, 15, 10,
9, 7, 6, 4
millimeters (inches)
Marking
7.0
(0.276)
Number of Element
RL = 6 Elements
PL = 4 Elements
7.2
(0.283)
2.2 (0.087)
(3.0)
0.7 (0.028)
0.5 (0.020)
4.3
(0.169)
3.0
(0.118)
0.15 (0.006)
Center Frequency
0.7 (0.028)
0.5 (0.020)
450-460kHz available
0.15 (0.006)
5
4
3
1
7.0
(0.276)
2
0.9 (0.035)
1.2 (0.047)
2.9 (0.114)
2.9 (0.114)
2.6 (0.102)
➀
➁
➂
➃
➄
Input
3
Output
1
2
7.0 (0.276)
Ground
Ground
0.8 (0.031)
Ground
Series
1.2 (0.047)
2.7
(0.106)
➀
➁
➂
Input
Output
Ground
SPECIFICATIONS (455 kHz)
KBF-RL Series (6 Elements)
Part Number
KBF-455RL-20A
KBF-455RL-15A
KBF-455RL-12A
KBF-455RL-10A
KBF-455RL- 9A
KBF-455RL- 7A
KBF-455RL- 6AS
KBF-455RL- 4AS
Center
Frequency
(f0)
Pass Band Width
Ripple
455kHz±1.5kHz
2.0dB max.
455kHz±1.0kHz
6dB
40dB
±10kHz
±7.5kHz
±6.0kHz
±5.0kHz
±4.5kHz
±3.5kHz
±3.0kHz
±2.0kHz
min. ±20kHz
min. ±15kHz
min. ±12.5kHz
min. ±12kHz
min. ±10kHz
min.
±9kHz
min.
±9kHz
min. ±7.5kHz
Stop Band Insertion Input/Output Operating
Matching
Attenuation Loss
Impedance Temperature
max.
4dB max.
1.5kΩ
max.
max.
max. 37dB min.
-20°C
to
max.
6dB max.
+80°C
max.
2.0kΩ
max.
55dB min.
max.
KBF-PL Series (4 Elements)
Part Number
KBF-455PL-25A
KBF-455PL-20A
KBF-455PL-15A
KBF-455PL-12A
KBF-455PL-10A
KBF-455PL- 7A
KBF-455PL- 6AS
KBF-455PL- 4AS
Center
Frequency
(f0)
455kHz±1.5kHz
2.0dB max.
455kHz±1.0kHz
Note: Center frequency is 450-460kHz available
46
Pass Band Width
Ripple
6dB
±12.5kHz
±10.0kHz
±7.5kHz
±6.0kHz
±5.0kHz
±3.5kHz
±3.0kHz
±2.0kHz
min.
min.
min.
min.
min.
min.
min.
min.
40dB
±24kHz
±20kHz
±15kHz
±12.5kHz
±12kHz
±9kHz
±9kHz
±7.5kHz
Stop Band Insertion Input/Output Operating
Matching
Attenuation Loss
Impedance Temperature
max.
4dB max.
1.5kΩ
max.
max.
27dB min.
max.
-20°C
to
max.
6dB max.
2.0kΩ
+80°C
max.
max.
35dB min.
max.
