LTWC455E [LGE]

Ceramic Filter; 陶瓷滤波器


型号：	LTWC455E
厂家：	LGE
描述：	Ceramic Filter 陶瓷滤波器陶瓷滤波器
文件：	总4页 (文件大小：224K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LTWC455E

Ceramic Filter

1. SCOPE

This specification shall cover the characteristics of the ceramic filter with

455KHz.

2. PART NO.:

LTWC455E

3. ELECTRICAL SPECIFICATIONS

3-1 Center frequency(fo)

3-2 Band Width at 6dB

455KHz±1.5KHz max.

±7.50KHz min.(to 455KHz)

±15.0KHz max.(to 455KHz)

50dB min. (at 455±100KHz max.)

2.0dB max.(at 455±5.0KHz)

6.0dB max.(at the smallest loss)

±50ppm/℃ max.

3-3 Band Width at 50dB

3-4 Stop Band Attenuation

3-5 Ripple

3-6 Insertion Loss

3-7 Temperature Coefficient

of Center Frequency

(-20℃ to +80℃)

3-8 Spurious Response

0.1-1.0MHz min. 25dB

max. 30μsec.(455±4.0KHz)

100V.DC(1 minute)

3-9 Group Delay Time Deviation

3-10 Dielectric withstanding Voltage

3-11 Insulation Resistance(DC 10V)

3-12 Input / Output Impedance

min.100MΩ

1.5KΩ

Note 1) Center frequency shall be defined as the center of the band width 6dB.

Note 2) Temperature coefficient of center frequency shall be defined as the

average of the center frequency shift throughout the specified

temperature range.

4. MEASUREMENT

4-1 Measuring Condition

The reference temperature shall be 25±2℃. Unless the result is doubtful,

the measurement shall be performed in the temperature range of 5 to 35℃.

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LTWC455E

Ceramic Filter

4-2 Measuring Circuit

5. DIMENSION (Unit : mm)

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LTWC455E

Ceramic Filter

6.ENVIRONMENTAL CHARACTERISTICS

6-1 Humidity

Keep the filter at 40℃ ± 2℃ and 90 to 95% RH for minimum 8 hours.

Then, release the filter into the room conditions for 1 hour prior to the

measurement. It shall fulfill the electrical specifications in section 3.

6-2 Vibration

Subject the filter to the vibration for 1 hour each in X, Y and Z axes with the

amplitude of 1.0mm at 10 to 55Hz. It shall fulfill the electrical specifications

in section 3.

6-3 Mechanical Shock

Drop the filter randomly onto a concrete floor from the height of 30cm 3

times. It shall fulfill the electrical specifications in section 3.

6-5 High Temperature Exposure

Put subject filter to chamber at 80 ± 5℃ for 96 ± 4 hours. Then, release

the filter into the room condition for 1 hour prior to the measurement. It

shall meet the electrical specifications in section 3.

6-6 Low Temperature Exposure

Put subject filter to –20 ± 5℃ for 96 ± 4 hours. Then, release the filter into

the room conditions for 1 hour prior to the measurement. It shall fulfill the

electrical specifications in section 3.

6-7 Temperature Cycling

Subject filter is put into low temperature of -40℃ for 30 minutes, followed

by a high temperature of +85℃ for 30 minutes. Cycling shall be repeated 5

times with a time interval of 15 minutes under room conditions. Then,

release the filter into the room conditions for 1 hour prior to the

measurement. It shall fulfill the electrical specifications in section 3.

6-8 Lead Fatigue

Weight 3Kg along to the direction of lead without a sudden shock. The filter

shall show no evidence of damage and shall satisfy all the initial characteristics.

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LTWC455E

Ceramic Filter

7. Standard Reflow Soldering Condition

(1)Reflow

Filter is soldered once within the following temperature Condition and then being

placed in natural condition for 24 hours.

(2)Soldering Iron

Electrode is directly contacted with the tip of soldering iron of +260±5℃ for 3±1

seconds, and then being placed in natural condition for 24 hours.

8.PACKAGE FORM

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