Ceramic Filters (CERAFIL

r) for Communications Equipment

CERAFIL

r Plastic Case General Use CFWLA Series

Ceramic filter CFWLA series are low profile high

selectivity ceramic filters, which use 6 elements in

ladder form.

They are best suitable to high-class transceivers,

cordless telephones and amateur radios.

c Features

1. Low profile, high selectivity

2. Available bandwidths are B to J as standard

3. Easily mountable on any PC board

4. Operating temperature range: -20 to +80 (°C)

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

0.15

2.3±0.5

2.0±0.3

2.9±0.3

11.0±0.5

MARKING

EIAJ

CODE

1.2±0.5

(1)

(2)

(4) (3)

(5)

0.6±0.1

0.8±0.1

2.6±0.3

Connection

(1): Input

(2)(3)(4): Ground

(5): Output

(in mm)

2.9—0.3

2.9±0.3

Part Number

Nominal Center

Frequency (fn)

(kHz)

6dB

Bandwidth

(kHz)

Stop

Bandwidth

(kHz)

Stop Band

Attenuation

(dB)

Insertion Loss

(dB)

Ripple

(dB)

Input/Output

Impedance

(ohm)

CFWLA455KBFA-B0

455.0

fn±15.0

min.

fn±30.0 max.

[within 50dB]

35 min.

[within fn±100kHz]

4.0 max.

[at minimum loss point]

3.0 max.

[within fn±10kHz]

1500

CFWLA455KCFA-B0

455.0

fn±12.5

min.

fn±24.0 max.

[within 50dB]

35 min.

[within fn±100kHz]

4.0 max.

[at minimum loss point]

3.0 max.

[within fn±8kHz]

1500

CFWLA455KDFA-B0

455.0

fn±10.0

min.

fn±20.0 max.

[within 50dB]

35 min.

[within fn±100kHz]

4.0 max.

[at minimum loss point]

3.0 max.

[within fn±7kHz]

1500

CFWLA455KEFA-B0

455.0

fn±7.5

min.

fn±15.0 max.

[within 50dB]

35 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

3.0 max.

[within fn±5kHz]

1500

CFWLA455KFFA-B0

455.0

fn±6.0

min.

fn±12.5 max.

[within 50dB]

35 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

3.0 max.

[within fn±4kHz]

2000

CFWLA455KGFA-B0

455.0

fn±4.5

min.

fn±10.0 max.

[within 50dB]

35 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

2.0 max.

[within fn±3kHz]

2000

CFWLA455KHFA-B0

455.0

fn±3.0

min.

fn±9.0 max.

[within 50dB]

60 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

2.0 max.

[within fn±2kHz]

2000

CFWLA455KJFA-B0

455.0

fn±2.0

min.

fn±7.5 max.

[within 50dB]

60 min.

[within fn±100kHz]

7.0 max.

[at minimum loss point]

2.0 max.

[within fn±1.5kHz]

2000

For safety purposes, connect the output of filters to the IF amplifier through a DC 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.

E1

R1

R2

E2

RF Voltmeter

Connection

(1): Input

(5): Output

(2)(3)(4): Ground

Rg

S.S.G.

0dBm

(1) (2) (3) (4)

(5)

Rg+R1=R2=Input/Output Impedance

c Test Circuit

P05E.pdf

Nov.24,2011

37

• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering.

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