CFULA455KB2A-B0 View Datasheet(PDF) - Murata Manufacturing

Part Name

Description

View to exact match

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 Group Delay Flat Type CFULA_Y Series

CFULA_Y series are high selectivity ceramic filters,

which consist of 4 ceramic elements connected in a

ladder form.

Most suitable for digital communications and cellular

phones because of their improved GDT characteristics.

s Features

1. High selectivity.

2. A variety of bandwidth available.

3. Excellent GDT characteristics are available within

pass bandwidth.

4. Easily mounted on a printed circuit board

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

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

8.0±0.3

MARKING

EIAJ

CODE

0.15±0.05

2.7±0.3

0.8±0.1

1.2±0.5 0.6±0.1

Connection

(1) : Input

(2) : Ground

(3) : Output

(in mm)

(2) (1)

(3)

3.3±0.5

Type

CFULA455KB4Y-B0

CFULA455KC4Y-B0

CFULA455KD1Y-B0

CFULA455KE1Y-B0

CFULA455KF1Y-B0

CFULA455KG1Y-B0

Marking

BY

CY

DY

EY

FY

GY

Part Number

CFULA455KB4Y-B0

Center

Frequency (fo)

(kHz)

455.0

±1.5kHz

6dB

Stop

Bandwidth Bandwidth

(kHz)

(kHz)

Stop Band

Attenuation

(dB)

fn±15.0 fn±35.0 max.

25 min.

min. [within 40dB] [within fn±100kHz]

Insertion

Loss

(dB)

GDT Deviation

(µs)

5.0 max.

15.0 max.

[at minimum loss point] [within fn±10kHz]

Input/Output

Impedance

(ohm)

1500

CFULA455KC4Y-B0

455.0

±1.5kHz

fn±12.5 fn±30.0 max.

25 min.

6.0 max.

15.0 max.

min. [within 40dB] [within fn±100kHz] [at minimum loss point] [within fn±8kHz]

1500

CFULA455KD1Y-B0

455.0

±1.0kHz

fn±10.0 fn±25.0 max.

23 min.

7.0 max.

20.0 max.

min. [within 40dB] [within fn±100kHz] [at minimum loss point] [within fn±7kHz]

1500

CFULA455KE1Y-B0

455.0

±1.0kHz

fn±7.5

min.

fn±20.0 max.

23 min.

8.0 max.

20.0 max.

[within 40dB] [within fn±100kHz] [at minimum loss point] [within fn±5kHz]

1500

CFULA455KF1Y-B0

455.0

±1.0kHz

fn±6.0

min.

fn±17.5 max.

23 min.

9.0 max.

20.0 max.

[within 40dB] [within fn±100kHz] [at minimum loss point] [within fn±4kHz]

2000

CFULA455KG1Y-B0

455.0

±1.0kHz

fn±4.5

min.

fn±15.0 max.

23 min.

10.0 max.

20.0 max.

[within 40dB] [within fn±100kHz] [at minimum loss point] [within fn±3kHz]

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.

(fn) means nominal center frequency 455kHz.

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

s Test Circuit

14

(3)

R1

(1) (2)

Rg

E1

S.S.G.

0dBm

R2

E2

Rg+R1=R2=Input/Output Impedance

RF Voltmeter

Connection

(1) : Input

(2) : Ground

(3) : Output

39

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