Document
FILTERS FOR COMMUNICATIONS EQUIPMENT MINIATURE, G.D.T. FLAT TYPE CFUM/CFWM455२Y SERIES
Ceramic filter CFUM/CFWM455२Y Series are miniature and highperformance filters. These filters, while only 6.3mm high, are 60% the volume of conventional types (CFUS/CFWS Series). Well suited for miniaturizing the communications equipment, especially for a cellular phone.
FEATURES
s Miniature, flat G.D.T. characteristics s Suitable for a cellular phone s A variety of bandwidths are
available.
s Operating temperature range: –20°C to +80°C Storage temperature range: –40°C to +85°C
s Available for 450kHz and 455kHz
DIMENSIONS: mm CFUM455२Y
6.5
6.5
CFWM455२Y
9.5
6.5
6.3
4-0.15 ± 0.05
3.5
2.4 1.8 0.8 0.7
ቢባ ቤብ
4.3 1.0
0.7± 0.1
0.5 ± 0.1
Connection ቢ Input ባ Output ቤ ብ Ground Tol. without notice: ±0.3mm
6.3
5-0.15 ± 0.05
3.5
2.5 2.7 2.8 0.9
ቢባ ቤብቦ
0.7
4.3 1.0
0.7± 0.1
0.5 ± 0.1
Connection ቢ Input ባ Output ቤ ብ ቦ Ground Tol. without notice: ±0.3mm
SPECIFICATIONS
Part Number
CFUM455BY CFUM455CY CFUM455DY CFUM455EY CFUM455FY CFUM455GY
Nominal Center Frequency (kHz)
455 ± 1.5 455 ± 1.5 455 ± 1.0 455 ± 1.0 455 ± 1.0 455 ± 1.0
6dB Bandwidth (kHz) min.
±15 ±12.5 ±10 ±7.5 ±6 ±4.5
40dB Bandwidth (kHz) max.
±35 ±30 ±25 ±20 ±17.5 ±15
Part Number
Nominal Center 6dB Bandwidth 50dB Bandwidth
Frequency (kHz)
(kHz) min.
(kHz) max.
CFWM455BY
455 ± 1.5
±15
±35
CFWM455CY
455 ± 1.5
±12.5
±30
CFWM455DY
455 ± 1.0
±10
±25
CFWM455EY
455 ± 1.0
±7.5
±20
CFWM455FY
455 ± 1.0
±6
±17.5
CFWM455GY
455 ± 1.0
±4.5
±15
• CFUM455२Y series filters are 4-element ceramic filters and miniature type of CFUS455२Y series. • CFWM455२Y series filters are 6-element ceramic filters and miniature type of CFWS455२Y series.
PART NUMBERING SYSTEM
Attenuation 455±100kHz
(dB) min.
25
25
23
23
23
23 Attenuation 455±100kHz
(dB) min.
35
35
35
35
35
35
Insertion Loss Input/Output G.D.T. Deviation
(dB) max. Impedance (⍀)
(sec.)
5 1500 [15] (±10kHz) 6 1500 [15] (±8kHz) 7 1500 [20] (±7kHz) 8 1500 [20] (±5kHz) 9 2000 [20] (±4kHz) 10 2000 [20] (±3kHz)
Insertion Loss Input/Output G.D.T. Deviation
(dB) max. Impedance (⍀)
(sec.)
6 1500 [30] (±10kHz) 7 1500 [30] (±8kHz) 8 1500 [30] (±7kHz) 9 1500 [30] (±5kHz) 10 2000 [40] (±4kHz) 13 2000 [40] (±3kHz)
CFUM/CFWM 455 D
Y
SERIES Ultra-miniature
455 Frequency in kHz
BANDWIDTH
GDT CONTROLLED
Available as standard through authorized Murata Electronics Distributors. ̆Applicable in North American market only. ̄Applicable in European market only. For more detailed information regarding this product line in North America, see Catalog No. P-05-D. To receive additional information on Murata Products call 1-800 -831-9172. For more detailed information regarding this product line in Europe, see Catalog No. P05E-8.
118
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