AM Ladder Filters for Surface Mounting

TYPE

ELFC

1.2±0.1

1.0

1.0

(1.0)

4.0

6.0

4.2 Max.

C 0.5

Sealing

Sealing

Sealing

G

IN

OUT

Description

• Ceramic ladder Filters for 455kHz band surface mounting.

• May be used in combination with Ceramic Discriminator to

eliminate need for adjustment.

Features

• Bandwidth characteristics can be set to meet

requirements, l.e..from ±3kHz to ±10kHz.

• Possibility of use in IF stages ladder filters which require

no adjustments.

Applications

• Wireless communications equipment, Transceivers, and

Equipment for Personal computer.

• Wireless data communications equipment (Remote

Engine starter, Handheld companions).

概 要

• セラミックディスクリミネータとの組み合わせでIF段の無調

整化が可能

特 長

• 帯域幅が用途に応じ自由に選択可能（±3kHz∼±10kHz）

• IF段の無調整化が可能

用 途

• 無線通信機、トランシーバ、PC周辺機器

• 無線応用機器（エンジンスタータ、携帯端末など）

SELECTION GUIDE FOR STANDARD FILTERS

TYPE ELFC

TYPE ELFC

東光品番

6dB帯域幅

減衰帯域幅

保証減衰量

挿入損失

TOKO

6dB Band

40dB Band

Attenuation

Insertion

Input/Output

Part

width

width

Loss

Impedance

Number

(kHz Min.)

(kHz Max.)

(dB Min.)

(dB Max.)

(Ω)

ELFC455D

±10.0

±20.0

27.0

4.0

1500

ELFC455E

± 7.5

±15.0

27.0

4.0

1500

ELFC455F

± 6.0

±12.5

27.0

4.0

1500

ELFC455G

± 4.5

±10.0

27.0

4.0

1500

ELFC455H

± 3.0

± 9.0

27.0

4.0

1500

入出力

インピーダンス

Rg

S.G

E.V

(1)

(2)

(3)

Test conditions

測定条件

(Unit : mm)

Standard pattern dimensions

標準パターン寸法図

(Unit : mm)

Standard reflow soldering conditions

標準リフロソルダ条件

Slow cooling

300

250

200

150

100

50

40sec

5se

1~2min

2min or more

Pre-heating

Solderin

1.3

1.5

4.0