Ceramic Filters (CERAFIL

r) for Communications Equipment

CERAFIL

r kHz SMD Type CFUKG Series

The CFUKG series is comprised of small, high-performance,

thin (4.0mm) filters consisting of 4 ceramic elements.

Their innovative construction is perfect for shrinking

mobile communication products such as pocket pagers

and cellular phones.

c Features

1. The filters are mountable by automatic placers.

2. The filters can be reflow soldered and withstand

washing.

3. They are slim, at only 4.0mm maximum thickness,

and have a small mounting area (7.5x6.0mm)

enabling flexible PCB design.

4. The bandwidth ranges from D to G.

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

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

1.5±0.3

3.0±0.3

1.0±0.1

4.0±0.3

C0.5

1.2±0.1

1.0±0.1

(in mm)

Connection

(1): Input

(2): Output

(3): Ground

1.0±0.3

1.0±0.3

1.5±0.3

6.0±0.3

(1)

(2)

(3)

MARKING

EIAJ

CODE

Part Number

Center

Frequency (fo)

(kHz)

6dB

Bandwidth

(kHz)

Stop

Bandwidth

(kHz)

Stop Band

Attenuation

(dB)

Insertion Loss

(dB)

Ripple

(dB)

Input/Output

Impedance

(ohm)

CFUKG455KD4A-R0

455

±1.5kHz

fn±10.0

min.

fn±20.0 max.

[within 40dB]

27 min.

[within fn±100kHz]

4.0 max.

[at minimum loss point]

2.0 max.

[within fn±7kHz]

1500

CFUKG455KE4A-R0

455

±1.5kHz

fn±7.5

min.

fn±15.0 max.

[within 40dB]

27 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

1.5 max.

[within fn±5kHz]

1500

CFUKG455KF4A-R0

455

±1.5kHz

fn±6.0

min.

fn±12.5 max.

[within 40dB]

27 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

1.5 max.

[within fn±4kHz]

1500

CFUKG455KG1A-R0

455

±1.0kHz

fn±4.5

min.

fn±10.0 max.

[within 40dB]

25 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

1.5 max.

[within fn±3kHz]

1500

Center frequency (fo) defined by the center of 6dB bandwidth.

(fn) means nominal center frequency 455kHz.

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

Rg

S.S.G.

0dBm

R1

RF Voltmeter

Connection

(1): Input

(2): Output

(3): Ground

(2)

(3)

(1)

R2

E2

Rg+R1=R2=Input/Output Impedance

c Test Circuit

P05E.pdf

Nov.24,2011

7

• 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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