SFU455B [LGE]
Ceramics Filter; 陶瓷过滤器
| 型号： | SFU455B |
| 厂家： | 
LGE |
| 描述： | Ceramics Filter |
| 文件： | 总6页 (文件大小：166K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SFU455B
Ceramics Filter
1. SCOPE
（范围）
This specification is applied to the ceramics filter used for AM receiver
.
（本规格书适用于 AM收音机用陶瓷滤波器。）
2. MODEL NAME
（产品名称）
Part Name
Customer’s Part Number
Drawing No.
（型号）
（客户型号）
（ 图号）
SFU455B
GG-076
3. DIMENSIONS
（尺寸）
A
UNIT : MM
A
7.0±0.3
B
C
D
E
9.0±0.3
5.0±1.0
0.9±0.1
0.7±0.1
SFU
455B
B
C
F
G
H
2.5±0.2
0.15±0.03
3.6±0.3
D
E
(1). INPUT
F
F
(2). GROUND
(3). OUTPUT
G
H
(3)
(2) (1)
SFU455B
Ceramics Filter
5. ELECTRICAL CHARACTERISTICS
（电气性能）
Item
Requirements
（项目）
（要求）
5-1
Center Frequency (fo)
462±2.0KHZ
10±3KHZ
（中心频率）
5-2
5-3
5-4
3 dB Bandwidth
（3dB带宽）
Slecetivity
f0-9KHZ
f0+9KHZ
6 dB min
4 dB min
(选择性)
Insertion Loss
5.0 dB max
（插入损耗）
(at minimum loss point)
5-5
Passband Ripple
0 dB
（带内波动）
5-6
5-7
5-8
Stop band attenuation
9 dB min
DC 50V
（阻带）
Withstanding Voltage
(耐电压)
Temperature Coefficient
Of Center Frequency
(-20~+80℃)
±1.5khz max
5-9
input/output Impedance
3.0 kΩ
(输入输出阻抗)
Note:
1. Center frequency shall be define as the center value of the band
at 3 dB.
2. temperature coefficient of center frequency is based on the center
frequency at 25℃.
SFU455B
Ceramics Filter
4．TEST CIRCUIT
（测试电路）
Partsshallbemeasuredunderacondition(Temp.:3~35℃.Hum.:45~85%)
unless
any necessity to measure under a standard condition (Temp.:20 + 2℃.
Humi.:65 + 5%) is occurred.
（测量条件为温度 3-35℃，相对湿度 45~85%，必要时标准测量条件为温度 20 + 2℃，
相对湿度 65 + 5%）
R1
R3
●
Rg
(1)
(2)
(3)
R2
RF
Volt meter
S. S. G
●
●
R1=R2=3.0KΩ
Rg=R3=50Ω
(1). Input
(2). Ground (3).
Output
SFU455B
Ceramics Filter
6. PHYSICAL AND ENVIRONMENTAL CHARACTERISTICS
（物理及环境特性）
Test Item
Condition of Test
Requirements
（试验项目）
（试验条件）
（要求）
6-1 Lead Strength Applied to vertical weight 1Kg along with
（引脚强度） the direction of lead without any shock
Lead Pulling for 5-10sec.
（引脚拉力） （沿引线方向加10牛顿静载荷5-10秒.）
No mechanical
damage and the
measured values
Lead Bending Filter lead shall be subjected to withstand shall meet Item
（引脚弯曲） against 90°bending its stem.This opration 5.
shall be done toward both diretion.
(无机械损伤，测量
值足第5款要求.）
（引脚折弯90°，反方向同样。）
6-2 Solderability Dip the terminals of the filter no closer The solder shall
（可焊性）
than 1.5mm into a soldering bath(230+5℃) be for coat at
for 5+1 sec .
least 95% of the
terminal surface
(refer to MIL-STD-202E-208C)
（端子至少1.5mm应浸没在(230+5℃)锡池内5+1 秒。）（端子表面95%被浸润)
6-3
Vibration
Filter shall be measured after being
applied vibration as below
(振动)
（在下面条件下振动后测试）
Novisibledamage
and the measured
Vibration Freq: 10-55HZ
(振动频率)
value shall meet
table 1
Amplitude
: 1.5 mm
（幅度）
Directions
（方向）
Time
(无可见损伤且测量值
: 3 axial directions
满足表１）
（3轴向）
:
1 hour/each direction
（时间）
（1小时/各方向）
6-4
Random Drop Filter shall be measured after 3 times
（任意跌落） random dropping from the height of ３０ｃm.
concrete floor.
（3次３０ｃｍ高度跌落到水泥地板后测试）
6-5 Resistance to Filter immersing the terminals up to 1.5
Soldering Heat mm to filter’s body in soldering bath
The measured
value shall meet
table 1.
（耐焊接热）
(350 +10℃) for 3 sec., filter shall be
measure after being placed in natural
condition for 1 hour.
(测量值满足表1)
（端子在(350+10℃)锡池内浸没到器件根部1.5mm，，
时间3秒，自然条件放置1小时后测试。）
SFU455B
Ceramics Filter
6. PHYSICAL AND ENVIRONMENTAL CHARACTERISTICS（续上页）
（物理及环境特性）
Test Item
Condition of Test
Requirements
（试验项目）
（试验条件）
（要求）
6-7
Humidity
After being placed in a chamber (Humi,
:90-95% RH Temp.:40 + 2℃) for 100
hours filter shall be measured after
（湿度）
placed in natural condition for 1 hour
(相对湿度90-95% 温度40 + 2℃容器中放置100小时，
自然条件放置1小时后测试。）
6-8
Life Test
After being placed in a chamber 85+2℃
（High
for 100 hours ,filter shall be
temperature) measured after being placed in natural
condition for 1 hour.
（寿命试验）
（高温）
（温度85+ 2℃容器中放置100小时，自然条件放置
1小时后测试。）
6-9
Life Test
(Low
Placed in a chamber (Temp:-55+ 2℃) for
The measured
100 hours,filter shall be measured placed value shall meet
Table 1.
temperature) in natural condition for 1 hour .
(寿命试验）
（低温）
（温度-55±2℃容器中放置100小时，自然条件放置1 （测量值应满足表1）
小时后测试。）
After temperature cycling of -55℃(30
66-10 Thermal Shock minutes ) to +85℃ ( 30 minutes ) was
(温度冲击)
performed 5 times with a transfer time15
min filter shall be measured after being
placed in natural condition for 1 hour.
（温度-55℃（30分钟）至+85℃（30分钟）循环5次，
15分钟1次,自然条件放置1小时后测试。 ）
SFU455B
Ceramics Filter
6. PHYSICAL AND ENVIRONMENTAL CHARACTERISTICS（续上页）
（物理及环境特性）
Table
1
(表1)
Item
Limit Value
（项目）
（极限值）
※
Center Frequency
+ 1.0 kHz max
（中心频率）
※ 3 dB Bandwidth
（3dB带宽）
+
1.0 kHz max
※ Insertion Loss
（插入损耗）
+
5.0 dB max
※ Note: The limits in the above table are referenced to the initial
Measurements.（表中的限值参照初始测量值）
7. NOTICE
（注意）
Ceremic filter should be stored in storeroom .And the surrouding
7.1
7.2
7.3
atmosphere is acidless,alkali-free and no other harmful impurity.
(器件应贮藏在贮藏室，周围环境无酸、碱性腐蚀或其它有害气体.)
The package for ceramic filter should be avoid the hit by rain and
Snow,also the mechanical damage.
(包装应避免风雪、雨水的侵袭以及机械伤害。)
This specification limits the quality of the component as a single
unit .Please make sure that the component is evaluated and confirmed
the drawing When it is mounted to your product.
（本规格书只规定了部件本身的质量。应用于您的产品时。请确认图纸该部件是否等效.）
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