44
Center Pass Band Width Stop Band Insertion Input/Output Operating
Part Number Frequency Ripple 6dB 40dB Attenuation Loss Matching Temperature
(f0)Impedance
KBF-455RL-20A ±10kHz min. ±20kHz max. 4dB max.
KBF-455RL-15A ±7.5kHz min. ±15kHz max. 1.5kΩ
KBF-455RL-12A 455kHz±1.5kHz ±6.0kHz min. ±12.5kHz max.
KBF-455RL-10A 2.0dB max. ±5.0kHz min. ±12kHz max. 37dB min. -20°C
KBF-455RL- 9A ±4.5kHz min. ±10kHz max. to
KBF-455RL- 7A ±3.5kHz min. ±9kHz max. 6dB max. 2.0kΩ+80°C
KBF-455RL- 6AS 455kHz±1.0kHz ±3.0kHz min. ±9kHz max. 55dB min.
KBF-455RL- 4AS ±2.0kHz min. ±7.5kHz max.
SPECIFICATIONS (455 kHz)
KBF-RL Series (6 Elements)
KBF-PL Series (4 Elements)
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
• Walkie & Talkie
• Car audio (AM radio section)
• Cordless phone
• Remote control receiver
Selectivity
A = High selectivity
AS = Super high selectivity
Pass Band-Width
(kHz) at 6dB
6 Elements = 20, 15, 10, 9,
7, 6, 4
4 Elements = 25, 20, 15, 10,
9, 7, 6, 4
Number of Element
RL = 6 Elements
PL = 4 Elements
Center Frequency
450-460kHz available
Series
HOW TO ORDER
KBF - 455 RL - 20 A
Center Pass Band Width Stop Band Insertion Input/Output Operating
Part Number Frequency Ripple 6dB 40dB Attenuation Loss Matching Temperature
(f0)Impedance
KBF-455PL-25A ±12.5kHz min. ±24kHz max. 4dB max.
KBF-455PL-20A ±10.0kHz min. ±20kHz max. 1.5kΩ
KBF-455PL-15A 455kHz±1.5kHz ±7.5kHz min. ±15kHz max.
KBF-455PL-12A 2.0dB max. ±6.0kHz min. ±12.5kHz max. 27dB min. -20°C
KBF-455PL-10A ±5.0kHz min. ±12kHz max. 6dB max. 2.0kΩto
KBF-455PL- 7A ±3.5kHz min. ±9kHz max. +80°C
KBF-455PL- 6AS 455kHz±1.0kHz ±3.0kHz min. ±9kHz max. 35dB min.
KBF-455PL- 4AS ±2.0kHz min. ±7.5kHz max.
1.2 (0.047)
2.6 (0.102)
4.3
(0.169) 0.7 (0.028)
2.2 (0.087)
(3.0)
Marking
0.5 (0.020)
0.15
11.0 (0.433) 7.0
(0.276)
7.5
(0.295)
7.0
(0.276)
2.9 (0.114)
2.9 (0.114)
5431
0.9
2
(0.006)
(0.035)
filter
Output
Input Ground
R2
C
RF
V.M.
R1
Rg
S.S.G.
R1+Rg=R2=Rating impedance of input/output matching
• C<50pF
(Including stray capacitance and input capacitance)
TEST CIRCUIT
DIMENSIONS millimeters (inches)
KBF-RL Series (6 Elements) KBF-PL Series (4 Elements)
➀
Input
➁
Output
➂
Ground
➃
Ground
➄
Ground
➀
Input
➁
Output
➂
Ground
1.2 (0.047)
2.7
(0.106)
4.3
(0.169) 0.7 (0.028)
3.0
(0.118)
Marking
0.5 (0.020)
0.15 (0.006)
8.0
(0.315) 7.0
(0.276)
7.2
(0.283)
7.0 (0.276)
0.8 (0.031)
3
2
1
Note: Center frequency is 450-460kHz available
