Ceramic Filters (CERAFIL

r) for Communications Equipment

CERAFIL

r kHz SMD Type CFUKF Series

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

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

The filters exhibit an extremely flat GDT

characteristic.

The filters are recommended for digital

communication applications and are perfect in hand-held

cellular phones, etc.

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 A to E.

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)

GDT Deviation

(µs)

Input/Output

Impedance

(ohm)

CFUKF455KA2X-R0

455

±2.0kHz

fn±17.5

min.

fn±40.0 max.

[within 40dB]

25 min.

[within fn±100kHz]

4.0 max.

[at minimum loss point]

1.0 max.

[within fn±12kHz]

15.0 max.

[within fn±12kHz]

1000

CFUKF455KB4X-R0

455

±1.5kHz

fn±15.0

min.

fn±35.0 max.

[within 40dB]

25 min.

[within fn±100kHz]

5.0 max.

[at minimum loss point]

1.0 max.

[within fn±10kHz]

15.0 max.

[within fn±10kHz]

1000

CFUKF455KC4X-R0

455

±1.5kHz

fn±12.5

min.

fn±30.0 max.

[within 40dB]

25 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

1.0 max.

[within fn±8kHz]

15.0 max.

[within fn±8kHz]

1000

CFUKF455KD1X-R0

455

±1.0kHz

fn±10.0

min.

fn±25.0 max.

[within 40dB]

23 min.

[within fn±100kHz]

7.0 max.

[at minimum loss point]

1.0 max.

[within fn±7kHz]

20.0 max.

[within fn±7kHz]

1500

CFUKF455KE1X-R0

455

±1.0kHz

fn±7.5

min.

fn±20.0 max.

[within 40dB]

23 min.

[within fn±100kHz]

8.0 max.

[at minimum loss point]

1.0 max.

[within fn±5kHz]

20.0 max.

[within fn±5kHz]

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

11

• 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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