Ceramic Filters (CERAFIL

r) for Communications Equipment

CERAFIL

r kHz SMD Type SFPKA Series

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

economical, thin (5.0mm) filters consisting of 4 ceramic

elements. Their innovative construction is perfect for

shrinking mobile communication products such as cordless

phones, pagers and transceivers.

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 5.0mm maximum thickness.

4. The bandwidth ranges from D to H.

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

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

3.0±0.3

2.0±0.3

1.5±0.3

7.0±0.3

0.9±0.1

MARKING

EIAJ

CODE

2.0±0.3

(1) (2) (3)

1.5±0.3

1.6±0.3

Connection

(1): Input

(2): Ground

(3): Output

(in mm)

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)

SFPKA455KD4A-R1

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

SFPKA455KE4A-R1

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

SFPKA455KF4A-R1

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

SFPKA455KG1A-R1

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

SFPKA455KH1A-R1

455

±1.0kHz

fn±3.0

min.

fn±9.0 max.

[within 40dB]

35 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

1.5 max.

[within fn±2kHz]

2000

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.

Rg+R1=R2=Input/Output Impedance

E1: S.S.G. Output Voltage

E1

R1

Rg

S.S.G.

0dBm

(1)

(2)

(3)

R2

E2

RF Voltmeter

(1): Input

(2): Ground

(3): Output

c Test Circuit

P05E.pdf

Nov.24,2011

5

• 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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