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  • 穿心電容,饋通濾波器,信號(hào)濾波器
  • 價(jià)格:面議
  • 品牌:ractron
  • 產(chǎn)品簡(jiǎn)介:
  • 一、標(biāo)稱容量Capacitance :10pF,65pF,100pF,470pF,500pF,1000pF,1200pF,1500pF,1750pF,2000pF,2500pF,2700pF,3000pF,3300pF,4700pF,5000pF,5500pF,6800pF,7000pF,9000pF,10000pF,0.01F,0.012F,0.015F,0.018F,0.022F,0.025F,0.027F,0.028F,0.045F,0.050F,0.056F,0.075F,0.08F,0.1F,0

    產(chǎn)品詳情商家聯(lián)系電話:0755-82767283
     
    一、 標(biāo)稱容量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 :

    廠商資料
    濾波控制產(chǎn)品、濾波連接器、射頻微波產(chǎn)品
    廠商動(dòng)態(tài)
     
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