LFC/LFCM

AM CERAMIC FILTERS

August 2005

1

© 2005 TOKO America, Inc.

All Rights Reserved

Printed in USA

CF-317-LFC/M

R-LOG0805A

Dimensions

STANDARD FILTERS SELECTION GUIDE

TYPE LFC/LFCM

TOKO

Center *

Bandwidth

Bandwidth

Attenuation

Insertion

Input/Output

Part

Frequency

at 6 dB

at 40 dB

fo ± 100 KHz

Loss

Impedance

Number

(kHz)

(kHz)

(kHz)

(dB)

(dB)

(kΩ)

LFC

ALFC455H

455±1.0

±3.0 min.

±9.0 min.

25.0 max.

6.0 max.

2.0

ALFC455G

455±1.0

±4.5 min.

±10.0 min.

25.0 max.

6.0 max.

2.0

ALFC455F

455±1.0

±6.0 min.

±12.5 min.

27.0 max.

6.0 max.

2.0

ALFC455E

455±1.0

±7.5 min.

±15.0 min.

27.0 max.

6.0 max.

1.5

BLFC455D

455±2.0

±10.0 min.

±20.0 min.

27.0 max.

4.0 max.

1.5

BLFC455C

455±2.0

±12.5 min.

±24.0 min.

27.0 max.

4.0 max.

1.5

BLFC455B

455±2.0

±15.0 min.

±30.0 min.

27.0 max.

4.0 max.

1.5

LFCM

ALFCM455H

455±1.0

±3.0 min.

±9.0 min.

25.0 max

6.0 max.

2.0

ALFCM455G

455±1.0

±4.5 min.

±10.0 min.

25.0 max

6.0 max.

2.0

ALFCM455F

455±1.0

±6.0 min.

±12.5 min.

27.0 max

6.0 max.

2.0

ALFCM455E

455±1.0

±7.5 min.

±15.0 min.

27.0 max

6.0 max.

1.5

BLFCM455D

455±2.0

±10.0 min.

±20.0 min.

27.0 max

4.0 max.

1.5

BLFCM455C

455±2.0

±12.5 min.

±24.0 min.

27.0 max

4.0 max.

1.5

BLFCM455B

455±2.0

±15.0 min.

±30.0 min.

27.0 max

4.0 max.

1.5

* For 450kHz, substitute 450 for 455 in part number.

Description

• AM Ceramic filters are connected in a ladder structure

and are available as either 4/6 element devices

• Bandwidths from 6 to 30 kHz

Features

• 450, 455 kHz, (460kHz and 486kHz by special request)

• High selectivity

• Compact package

• Version with group delay variations specified also available

• Lead-free terminations

Applications

• AM radio cassettes, AM stereo sets

• Cordless telephones, pagers

• Two-way radios

LFC

LFCM

Unit: mm

Unit: mm