Datasheet > BFU455K

BFU455K

更新时间： 2024-11-13 19:49:43

品牌	Logo	应用领域
村田 - MURATA		/
页数	文件大小	规格书
1页	54K
描述
Ceramic BPF, 0.455MHz, CERAMIC, 2 PIN

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技术参数
数据手册

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BFU455K 技术参数

是否Rohs认证：	符合	生命周期：	Active
Reach Compliance Code：	compliant	风险等级：	5.65
最大衰减频率 (+/- delta f)：	9 kHz	最大频率时的衰减：	12 dB
中心频率或截止频率 (fo/fc)：	0.455 MHz	滤波器类型：	CERAMIC BPF
高度：	9 mm	长度：	7 mm
安装类型：	THROUGH HOLE MOUNT	物理尺寸：	L7XB3.5XH9 (mm)
宽度：	3.5 mm	Base Number Matches：	1

BFU455K 数据手册

PIEZO FILTERS

CERAMIC FILTERS FOR SIGNAL DETECTION

SFE & BFU Series

The following filters were specifically designed for signal

detection circuitry used in applications such as that found

in the search-stop functions of electronically tuned radios.

SPECIFICATIONS

SFE 10.7

Part Number

SFE10.7MFP1

Center Freq. (MHz)

10.7 (Nominal)

3dB Bandwidth (kHz)

Fn ±± min. Fn ±ꢀ± maꢁ.

Insertion Loss (dB max.)

Terminal Impedance (Ohms)

470

DIMENSIONS: mm

CIRCUIT

+1.5

–1.0

3.5

10.0 2.0

R₁

0.6 0.2

10.0 2.0

Rg=50ꢀ

Voltmeter

1.8 0.2

R₂

S.S.G.

1.3 0.1

0.6 0.1

5.0 1.0

0.3 0.1

R₁+Rg=R₂=Input/Output Impedance

C=10pF 2pF (including stray capacitance

and input capacitance of

RF Voltmeter.)

2.5 0.2

(3)

2.5 0.2

(1)

(2)

1=INPUT

2=GROUND

3=OUTPUT

1.1 0.1

SPECIFICATIONS

BFU 450/455

Part Number

BFU450K3

BFU450C

BFU450C4N

Resonant Frequency (kHz)

4±0 ± 1

Resonant Resistance (Ohms)

ꢀf (fa-fr) (kHz)

27.± ± 4.±

14 ± 2

ꢀ0

4±0 ± 1

4±0 ± 0.8

9 ± 2

• Temperature Coefficient is typically 10ppm/°C

Part Number

BFU455K

Center Frequency (kHz)

3dB Bandwidth (kHz)

Selectivity

8dB @ f₀=–9, 12dB @ f₀=+9

4±± ± 2

8 ± 2

DIMENSIONS: mm

CIRCUIT

BFU450K3/C/C4N

BFU455K

BFU450K3/C/C4N

BFU450C4N

S.S.G.

3kꢀ

3ꢀ

Voltmeter

3.5 0.3

For Fr and R1

50kꢀ 50kꢀ

7.0 0.3

3.5 0.3

7.0 0.3

BFU

Voltmeter

450C4N

9.0 0.3

3.5 0.5

For Fa

9.0 0.3

1.5 max.

3.5 0.5

0.8 0.1

BFU455K

1.1 0.1

0.8 0.1

1.1 0.1

2–1.0

+6V

2–1.0 D.

0.01ꢁ

0.35

1.75 0.5

15k - 20k

0.01ꢁ

1.75 0.5

Sealing

2SC403

0.35

0.01ꢁ

Sealing

0.1

5.0 0.2

Voltmeter

1.1 0.1

S.S.G.

0.01V

Const.

BFU

455k

5.0 0.2

Emitter current = 1.0mA

442

CG01-J

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