一、 標(biāo)稱(chēng)容量Capacitance :
10pF,65pF,100pF,470pF,500pF,1000pF,1200pF,1500pF,1750pF,2000pF,2500pF,2700pF,
3000pF,3300pF,4700pF,5000pF,5500pF,6800pF,7000pF,9000pF,10000pF,0.01μF,0.012μF,
0.015μF,0.018μF,0.022μF,0.025μF,0.027μF,0.028μF,0.045μF,0.050μF,
0.056μF,0.075μF,0.08μF,0.1μF,0.15μF,0.21μF,0.3μF,0.75μF,0.8μF,1μF,
0.015μF,0.060μF,0.062μF,0.150μF,0.200μF,0.250μF,0.250μF,0.300μF,0.450μF,0.500μF,
0.7μF,0.750μF,0.990μF,1.0μF,1.2μF,1.4μF,1.5μF,2.1μF,2.8μF,
4.0μF,5.2μF
101 100pF 331 330pF 471 470pF
102 1000pF 332 3300pF 472 4700pF
103 10000pF 333 33000pF 473 47000pF
1000pF=1nF 1000000pF=1μF 1000nF=1μF 1μF=1000nF=1000000pF 1F=1000000μF
Code
|
Capacitance tolerance
|
Code
|
Capacitance tolerance
|
F
|
± 1pF
|
S
|
+ 50%, –20%
|
K
|
±10%
|
Z
|
+ 80%, –20%
|
M
|
±20%
|
P
|
+100%, – 0%
|
二、工作電流Rated Current :
0.06A,0.15A,0.25A,0.3A,0.45A,0.5A,1A,2A,3A,4A,5A,10A,15A,25A,50A,100A
三、額定電壓Rated Voltage :
直流:5V,28V,35V,50V,60V,70V,80V,100V,150V,200V,250V,275V
300V,330V,350V,400V,450V,500V,600V,750V,1250V,2500V
交流:70V,85V,90V,115V,125V,140V,200V,220V,230V,240V,330V,350V
四、耐電壓Dielectric Withstanding Voltage :
直流:額定電壓的2.5倍 交流:額定電壓的6倍的直流電壓
五、工作溫度Working Temperature Range:
E:-10-+85℃ F:-25-+85℃ G:-30-+125℃
H:-40-+85℃ I:-55-+85℃ J:-55-+125℃
溫度特征
|
電容變化
|
溫度范圍
|
SL
|
SL(0±30ppm/°C)
|
–25~+ 85°C
|
B
|
B(+10~ –10%)
|
D
|
D(+20~ –30%)
|
E
|
E(+20~ –55%)
|
F
|
F(+30~ –80%)
|
C
|
CG(+350~ –1000ppm/°C)
|
–55~+125°C
|
R
|
R(+15~ –15%)
|
六、EMI 濾波器的構(gòu)成
濾波電容
濾波器所用的電容一般為陶瓷電容。由于其物理結(jié)構(gòu),這種陶瓷電容又稱(chēng)為穿心式電容。
穿心式電容自電感較普通電容小得多,故而自諧振頻率很高。同時(shí),穿心式設(shè)計(jì),也有效
地防止了高頻信號(hào)從輸入端直接耦合到輸出端。這種低通高阻的組合,在 1GHz 頻率范圍內(nèi),
提供了極好的抑制效果。
最簡(jiǎn)單的穿心結(jié)構(gòu)是由內(nèi)外電極和陶瓷構(gòu)成的一個(gè)( C 型)或兩個(gè)電容( Pi 型)。
這種電容的容量可從 10pF ,工作電壓可達(dá) 2000VDC 。管式穿心電容因?yàn)槠渫S性,即使在
10GHz 頻率,也不會(huì)產(chǎn)生明顯的自諧振。
穿心電容的介質(zhì)為陶瓷介質(zhì),而陶瓷電容的容量會(huì)隨環(huán)境溫度變化而變化,這種容量變化
會(huì)影響濾波器的濾波截止率。陶瓷電容的容量溫度變化率是由陶瓷介質(zhì)本身決定的。因此,
選擇適當(dāng)?shù)奶沾山橘|(zhì)非常重要。常見(jiàn)陶瓷介質(zhì)及其容量溫度變化率如下:
EIA 介質(zhì)類(lèi)別
|
COG(NP0)
|
X7R
|
Z5U
|
Y5V
|
超穩(wěn)定
|
穩(wěn)定
|
一般用途
|
工作溫度范圍
|
-55℃~+125℃
|
-55 ℃~+125 ℃
|
-10℃~+85 ℃
|
-30℃~+85℃
|
最大容量溫度變化率
|
0±30ppm/℃
|
± 15 %
|
-22% ~+56 %
|
-22%~+82%
|
絕緣電阻 Ri
|
≥104mΩ
|
Cr ≤ 25nF Ri ≤ 4000MΩ
Cr ≤ 25nF Ri* ≤ 100S
|
損耗( tanб )
|
Cr>50pF≤0.015
Cr≤50pF≤0.015
(15/Cr+0.7)
|
<0.025
|
<0.030
|
0.050
|
介質(zhì)強(qiáng)度
|
工作電壓
200V
500V
>1KV
|
施加工作電壓的倍數(shù)(加壓時(shí)間 5 秒,充電電流 50max )
|
X2.5
|
X2.5
|
X2.5
|
X2.5
|
X1.5
|
X1.5
|
X1.5
|
—
|
X1.5
|
X125
|
—
|
—
|
老化率10進(jìn)對(duì)數(shù)時(shí)間
|
0
|
1 %
|
6 %
|
6 %
|
濾波電感
濾波電感一般采用鐵氧體材料,它可以方便地與穿心電容組合起來(lái),形成復(fù)合濾波器,
在高性能濾波器中,也采用線繞電感。但需注意,鐵氧材料在大電流下會(huì)發(fā)生磁飽和,
降低濾波器效能。
七、安裝方式Filter Installation Style :
H:焊接式Solder-in Style Filters I:螺栓式 Screw Threaded Style Filters
八、螺紋直徑公制范圍Thread Size :
M3,M4,M5,M6,M8,M9
詳細(xì)產(chǎn)品資料和技術(shù)規(guī)格可以來(lái)電來(lái)函咨詢!
歡迎來(lái)電或傳真、郵件提供郵遞地址和郵編以便我們郵寄詳細(xì)產(chǎn)品選型手冊(cè)給您!