CFULA455KB2A-B0 Просмотр технического описания (PDF) - Murata Manufacturing

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CFULA455KB2A-B0

Ceramic Filters (CERAFIL®)/Ceramic Discriminators for Communications Equipment

Murata Manufacturing 

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Ceramic Filters (CERAFILr)/Ceramic Discriminators for Communications Equipment

CERAFILr Plastic Case General Use CFWLB_A Series

CFWLB_A series ceramic filters are miniature, high

performance ceramic filters composed of piezoelectric

elements connected in a ladder form.

These filters, with only 6.3mm high, are 67% the

volume of conventional types. (CFWLB_A series)

They are well suited for miniaturizing various kinds

of communications equipment, pocket pagers, pagers,

car radios, cordless telephones and mobile telephones.

s Features

1. Miniature and high selectivity.

2. A variety of bandwidths are available.

3. Operating temperature range : -20 to +80 (degree C)

Storage temperature range : -40 to +85 (degree C)

9.5±0.3

MARKING

EIAJ

CODE

0.7±0.1

0.15±0.05

2.5±0.3 2.7±0.3 2.8±0.3

0.9±0.3

0.5±0.1

Connection

(1) : Input

(2) : Output

}(3)

(4) : Ground

(5)

(in mm)

(1)

(2)

(3) (4) (5)

0.7±0.3

Type

Marking

CFWLB455KBFA-B0 W55B

CFWLB455KCFA-B0 W55C

CFWLB455KDFA-B0 W55D

CFWLB455KEFA-B0 W55E

CFWLB455KFFA-B0 W55F

CFWLB455KGFA-B0 W55G

CFWLB455KHFA-B0 W55H

CFWLB455KJFA-B0 W55I

Part Number

CFWLB455KBFA-B0

Nominal Center

Frequency (fn)

(kHz)

455

6dB

Bandwidth

(kHz)

fn±15.0

min.

Stop

Bandwidth

(kHz)

fn±30.0 max.

[within 50dB]

Stop Band

Attenuation

(dB)

35 min.

[within fn±100kHz]

Insertion

Loss

(dB)

4.0 max.

[at minimum loss point]

Input/Output

Impedance

(ohm)

1500

CFWLB455KCFA-B0

455

fn±12.5

min.

fn±24.0 max.

[within 50dB]

35 min.

[within fn±100kHz]

4.0 max.

[at minimum loss point]

1500

CFWLB455KDFA-B0

455

fn±10.0

min.

fn±20.0 max.

[within 50dB]

35 min.

[within fn±100kHz]

4.0 max.

[at minimum loss point]

1500

CFWLB455KEFA-B0

455

fn±7.5

min.

fn±15.0 max.

[within 50dB]

35 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

1500

CFWLB455KEFA004-B0

455

fn±7.5

min.

fn±15.0 max.

60 min.

[within 60dB] [within fn±15kHz to 30kHz]

5.0 max.

[at fn]

1500

CFWLB455KFFA-B0

455

fn±6.0

min.

fn±12.5 max.

[within 50dB]

35 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

2000

CFWLB455KGFA-B0

455

fn±4.5

min.

fn±10.0 max.

[within 50dB]

35 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

2000

CFWLB455KHFA-B0

455

fn±3.0

min.

fn±9.0 max.

[within 50dB]

55 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

2000

CFWLB455KJFA-B0

455

fn±2.0

min.

fn±7.0 max.

[within 50dB]

55 min.

[within fn±100kHz]

7.0 max.

[at minimum loss point]

2000

For safety purposes, connect the output of filters to the IF amplifier through a D.C. blocking capacitor. Avoid applying a direct current to the output of ceramic filters.

The order quantity should be an integral multiple of the "Minimum Quantity" shown in package page in this catalog.

13

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