常用電容電阻電感設計選型

1、1 貼片電容C：100nF/ 50V X7R +/-10% 0805, -55到+125>100nF / 25V X5R +/-10% 0805， +10-+85一 NPO電容器         NPO是一種最常用的具有溫度補償特性的單片陶瓷電容器。它的填充介質是由銣、釤和一些其它稀有氧化物組成的。         NPO電容器是電容量和介質損耗最穩(wěn)定的電容器之一。在溫度從-55到+125時容量變化為0±30ppm/，電容量隨頻率的變化小于

2、±0.3C。NPO電容的漂移或滯后         小于±0.05%，相對大于±2%的薄膜電容來說是可以忽略不計的。其典型的容量相對使用壽命的變化小于±0.1%。NPO電容器隨封裝形式不同其電容量和介質損耗隨頻率變化的特性也不同，大封裝尺寸的要比小封裝尺寸的頻率特性好。下表給出了NPO電容器可選取的容量范圍。        封裝DC="50V"DC="100V"   

3、     08050.5-1000pF0.5-820pF        12060.5-1200pF0.5-1800pF        1210560-5600pF560-2700pF        22251000pF-0.033F1000pF-0.018F        NPO電容器適合用于振蕩器、諧振器

4、的槽路電容，以及高頻電路中的耦合電容。              二 X7R電容器        X7R電容器被稱為溫度穩(wěn)定型的陶瓷電容器。當溫度在-55到+125時其容量變化為15%，需要注意的是此時電容器容量變化是非線性的。        X7R電容器的容量在不同的電壓和頻率條件下是不同的，它也隨時間的變化而變化，大約每10年變化1%C，表現(xiàn)為10年變化了約5%。

5、        X7R電容器主要應用于要求不高的工業(yè)應用，而且當電壓變化時其容量變化是可以接受的條件下。它的主要特點是在相同的體積下電容量可以做的比較大。下表給出了X7R電容器可選取的容量范圍。        封裝DC="50V"DC="100V"        0805330pF-0.056F330pF-0.012F      

6、;  12061000pF-0.15F1000pF-0.047F        12101000pF-0.22F1000pF-0.1F         22250.01F-1F0.01F-0.56F                 三 Z5U電容器    &#

7、160;     Z5U電容器稱為”通用”陶瓷單片電容器。這里首先需要考慮的是使用溫度范圍，對于Z5U電容器主要的是它的小尺寸和低成本。對于上述三種陶瓷單片電容起來說在相同的體積下Z5U電容器有最大的電容量。但它的電容量受環(huán)境和工作條件影響較大，它的老化率最大可達每10年下降5%。         盡管它的容量不穩(wěn)定，由于它具有小體積、等效串聯(lián)電感（ESL）和等效串聯(lián)電阻（ESR）低、良好的頻率響應，使其具有廣泛的應用范圍。尤其是在退耦電路的應用中。下表給出了Z5U電容器的取值范圍。&

8、#160;        封裝DC="25V"DC="50V"         08050.01F-0.12F0.01F-0.1F         12060.01F-0.33F0.01F-0.27F         12100.01F-0.68F0.01F-0.47F 

9、0;       22250.01F-1F0.01F-1F         Z5U電容器的其他技術指標如下:         工作溫度范圍+10-+85         溫度特性+22%-56%         介質損耗最大4%    &#

10、160;           四 Y5V電容器         Y5V電容器是一種有一定溫度限制的通用電容器，在-30到85范圍內其容量變化可達+22%到-82%。         Y5V的高介電常數(shù)允許在較小的物理尺寸下制造出高達4.7F電容器。         Y5V電容器的取值范圍如下表所示&

11、#160;        封裝DC="25V"DC="50V"         08050.01F-0.39F0.01F-0.1F         12060.01F-1F0.01F-0.33F         12100.1F-1.5F0.     

12、0;   01F-0.47F         22250.68F-2.2F0.68F-1.5F         Y5V電容器的其他技術指標如下:         工作溫度范圍-30-+85         溫度特性+22%-82%         介質損耗最大

13、5%   鉭電容10UF/ 10V A型 , -55到+125100UF/10V C型 ， +10-+85470uF/6.3V D型電容量85°C時DC額定電壓（VR）FCode2.5V (e)4V (G)6.3V (J)10V (A)16V (C)20V (D)25V (E)35V (V)50V (T)0.100.150.22104154224AAAAA/BA/B0.330.470.68334474684AAAA/BA/BBB/CB/C1.0  1.5  2.2  105155225AAAA/BAA/B

14、A/BA/BA/B/CA/B/CB/CC/DC/D3.3  4.7  6.8  335475685AAAA/BA/BA/BA/BA/BA/B/CA/BBB/CB/CB/C/DC/DC/DDD101522106156226AAAAA/BA/BA/B/CA/B/CB/C/DB/CB/CB/C/DC/DC/DC/DC/D/EC/DD/ED/EEV334768336476686AAAABAA/B/CB/CA/B/CB/CB/CB/C/DC/DC/DC/DC/D/ED/ED/ED/EE/VD/E/VE/VV100150220107157227B

15、BB/DBB/CB/C/DB/CC/D C/D/EC/DC/D/ED/ED/ED/E/VE/VD/E/VE/VV330470680337470680DC/DD/EC/DD/E D/ED/ED/E/V E/VD/E/VE/V100015002200108158228D/ED/E/VVD/E/VE/VV電解電容 470UF/16V/8*11.5MM 470UF/50V/10*20MM電解電容封裝尺寸圖W.V.（V）Cap.(±20%)(uF)Case size（尺寸）Specification(規(guī)格）Lead Length（導線長度）Dia.(mm)Length(mm)Ripplecur

16、rent(120Hz)(+105）（mA)tan (120Hz)(+20）Endu-rance(hours)LeadDia.(mm)Lead Space腳間距Straight(mm)Taping*B(mm)Taping*i(mm)耐壓容量電容直徑電容長度最大電流壽命/時管腳尺寸6.32205111400.2810000.52.0 5.0 2.54706.311.22300.2810000.52.55.0 2.51000811.53800.2810000.63.55.0 220010167100.30 20000.65.0 5.0 330010208400.3220000.65.0 5.0 47

17、0012.52010900.3420000.65.0 5.0 680012.52513500.3820000.65.0 5.0 10000162516500.4620000.87.57.5150001631.520100.5620000.87.5220001835.523500.70 20000.87.5103306.311.22000.2410000.52.55.0 2.5470811.52500.2410000.63.55.0 10001012.54600.2420000.65.0 5.0 220010207600.2620000.65.0 5.0 330012.52010000.2820

18、000.65.0 5.0 470012.52512600.30 20000.65.0 5.0 6800162515700.3420000.87.57.5100001631.518900.4220000.87.5150001835.521800.5220000.87.5161005111100.20 10000.52.0 5.0 2.52206.311.21800.20 10000.52.55.0 2330811.52600.20 10000.63.55.0 470811.53100.20 10000.63.55.0 100010165600.20 20000.65.0 5.0 220012.5

19、209200.2220000.65.0 5.0 330012.52511700.2420000.65.0 5.0 4700162514800.2620000.87.57.568001631.517800.30 20000.87.5100001835.520600.3820000.87.52547511910.1610000.52.0 5.0 2.51006.311.21300.1610000.52.55.0 2.5220811.52300.1610000.63.55.0 330811.53100.1610000.63.55.0 4701012.53800.1620000.65.0 5.0 10

20、0010206800.1620000.65.0 5.0 220012.52510900.1820000.65.0 5.0 3300162514000.20 20000.87.57.547001631.517500.2220000.87.568001835.520400.2620000.87.53547511900.1410000.52.0 5.0 2.51006.311.21500.1410000.52.55.0 2.5220811.52700.1410000.63.55.0 3301012.53500.1420000.65.0 5.0 47010164600.1420000.65.0 5.0

21、 100012.5208100.1420000.65.0 5.0 2200162512600.1620000.87.57.533001631.516100.1820000.87.547001835.519100.20 20000.87.5500.15111.10.1210000.52.0 5.0 2.50.225112.30.1210000.52.0 5.0 2.50.335113.50.1210000.52.0 5.0 2.50.4751150.1210000.52.0 5.0 2.51511100.1210000.52.0 5.0 2.52.2511180.1210000.52.0 5.0

22、 2.53.3511220.1210000.52.0 5.0 2.54.7511260.1210000.52.0 5.0 2.510511390.1210000.52.0 5.0 2.522511650.1210000.52.0 5.0 2.533511900.1210000.52.0 5.0 2.5476.311.21100.1210000.52.55.0 2.5100811.51800.1210000.63.55.0 2201012.53000.1220000.65.0 5.0 33010164100.1220000.65.0 5.0 47010205300.1220000.65.0 5.

23、0 100012.5259500.1220000.65.0 5.0 22001631.514700.1420000.87.533001835.517700.1620000.87.56310511460.10 10000.52.0 5.0 2.522511710.10 10000.52.0 5.0 2.5336.311.21000.10 10000.52.55.0 2.5476.311.21200.10 10000.52.55.0 2.51001012.52150.10 20000.65.0 5.0 22010163350.10 20000.65.0 5.0 33010205100.10 200

24、00.65.0 5.0 47012.5206400.10 20000.65.0 5.0 100016259300.10 20000.87.57.522001835.516100.1220000.87.51000.4751190.0810000.52.0 5.0 2.51511140.0810000.52.0 5.0 2.52.2511210.0810000.52.0 5.0 2.53.3511310.0810000.52.0 5.0 2.54.7511380.0810000.52.0 5.0 2.5106.311.2540.0810000.52.55.0 2.5226.311.2930.081

25、0000.52.55.0 2.533811.51300.0810000.63.55.0 471012.51650.0820000.65.0 5.0 10010202650.0820000.65.0 5.0 22012.5254400.0820000.65.0 5.0 33016255400.0820000.87.57.5 47016257150.0820000.87.57.5 10001835.59850.0820000.87.516016.311.2170.1520000.52.55.0 2.52.26.311.2250.1520000.52.55.0 2.53.36.311.2360.15

26、20000.52.55.0 2.54.76.311.2430.1520000.52.55.0 2.5101012.5700.1520000.65.0 5.0 2210201300.1520000.65.0 5.0 3310201800.1520000.65.0 5.0 4712.5202200.1520000.65.0 5.0 10016253350.1520000.87.57.52201631.55400.1520000.87.53301831.57050.1520000.87.520016.311.2170.1520000.52.55.0 2.52.26.311.2250.1520000.

27、52.55.0 2.53.36.311.2360.1520000.52.55.0 2.54.7811.5500.1520000.63.55.0 101016800.1520000.65.0 5.0 2210201400.1520000.65.0 5.0 3312.5201900.1520000.65.0 5.0 4712.5202200.1520000.65.0 5.0 10016253350.1520000.87.57.52201831.55750.1520000.87.525016.311.2170.1520000.52.55.0 2.52.26.311.2290.1520000.52.5

28、5.0 2.53.3811.5420.1520000.63.55.0 4.7811.5500.1520000.63.55.0 101016880.1520000.65.0 5.0 2212.5201550.1520000.65.0 5.0 3312.5201900.1520000.65.0 5.0 4712.5252300.1520000.65.0 5.0 1001631.53650.1520000.87.535016.311.2180.20 20000.52.55.0 2.52.2811.5310.20 20000.63.55.0 3.31012.5380.20 20000.65.0 5.0

29、 4.71016500.20 20000.65.0 5.0 101020820.20 20000.65.0 5.0 2212.5201300.20 20000.65.0 5.0 3316251950.20 20000.87.57.54716252300.20 20000.87.57.51001831.53750.20 20000.87.540016.311.2180.2420000.52.55.0 2.52.2811.5300.2420000.63.55.0 3.31012.5400.2420000.65.0 5.0 4.71016500.2420000.65.0 5.0 101020800.

30、2420000.65.0 5.0 2212.5251450.2420000.65.0 5.0 3316251950.2420000.87.57.5471631.52500.2420000.87.54501811.5180.2420000.63.55.0 2.21012.5290.2420000.65.0 5.0 3.31016410.2420000.65.0 5.0 4.71020490.2420000.65.0 5.0 1012.520750.2420000.65.0 5.0 2216251150.2420000.87.57.5331631.51550.2420000.87.57.52 R：

31、（1K 1% 1/8W 0805）5和1電阻封裝尺寸與功率關系,通常來說:0201 1/20W 0402 1/16W0603 1/10W 0805 1/8W 1206 1/4W 電容電阻外形尺寸與封裝的對應關系是: 0402=1.0x0.5 0603=1.6x0.8 ：0.08英寸（換算成mm=0.08*24.50=1.96mm）0805=2.0x1.2 1206=3.2x1.6 1210=3.2x2.5 1812=4.5x3.2  微型貼片電阻上的代碼一般標為3位數(shù)或4位數(shù)的，3位數(shù)精度為5%，4位數(shù)的精度為1%，請大家根據(jù)精度要求挑選合適的代碼類型。代碼為3位數(shù)精度5%數(shù)字代碼=

32、電阻阻值代碼為3位數(shù)精度5%數(shù)字代碼=電阻阻值代碼為3位數(shù)精度5%數(shù)字代碼=電阻阻值代碼為3位數(shù)精度5%數(shù)字代碼=電阻阻值1R1=0.1R22=0.22R33=0,33R47=0.47R68=0.68R82=0.821R0=11R2=1.22R2=2.23R3=3.32R7=4.75R6=5.66R8=6.88R2=8.2100=10120=12150=15180=18220=22270=27330=33390=39470=47560=56680=68820=82101=100121=120151=150181=180221=220271=270331=330391=390471=470561

33、=560681=680821=820102=1K122=1.2K152=1.5K182=1.8K222=2.2K272=2.7K332=3.3K392=3.9K472=4.7K562=5.6K682=6.8K822=8.2K103=10K123=12K153=15K183=18K223=22K273=27K333=33K393=39K473=47K563=56K683=68K823=82K104=100K124=120K154=150K184=180K224=220K274=270K334=330K394=390K474=470K564=560K684=680K824=820K105=1M12

34、5=1.2M155=1.5M185=1.8M225=2.2M275=2.7M335=3.3M395-3.9M475=4.7M565=5.6M685=6.8M825=8.2M106=10M代碼為4位數(shù)精度1%數(shù)字代碼=電阻阻值代碼為4位數(shù)精度1%數(shù)字代碼=電阻阻值代碼為4位數(shù)精度1%數(shù)字代碼=電阻阻值代碼為4位數(shù)精度1%數(shù)字代碼=電阻阻值0000=0000R1=0.10R22=0.220R47=0.470R68=0.680R82=0.821R00=11R20=1.22R20=2.23R30=3.36R80=6.88R20=8.210R0=1011R0=1112R0=1213R0=1315R0=1

35、516R0=1618R0=1820R0=2024R0=2427R0=2730R0=3033R0=3336R0=3639R0=3943R0=4347R0=4751R0=5156R0=5662R0=6268R0=6875R0=7582R0=8291R0=911000=1001100=1101200=1201300=1301500=1501600=1601800=1802000=2002200=2202400=2402700=2703000=3003300=3303600=3603900=3904300=4304700=4705100=5105600=5606200=6206800=6807500=

36、7508200=8209100=9101001=1K1101=1.1K1201=1.2K1301=1.3K1501=1.5K5601=5.6K6201=6.2K6801=6.8K7501=7.5K8201=8.2K9101=9.1K1002=10K1102=11K1202=12K1302=13K1502=15K1602=16K1802=18K2002=20K2202=22K2402=24K3002=30K3303=33K3602=36K3902=39K4302=43K4702=47K5102=51K5602=56K6202=62K6802=68K7502=75K8202=82K9102=91K

37、1003=100K1103=110K1203=120K1303=130K1503=150K1603=160K1803=180K2003=200K2203=220K2403=240K2703=270K3003=300K3303=330K3603=360K3903=390K4303=430K4703=470K5103=510K5603=560K6303=630K6803=680K7503=750K8203=820K9103=910K1004=1M1104=1.1M1204=1.2M1304=1.3M1504=1.5M1604=1.6M1804=1.8M2004=2M2204=2.2M2404=2.

38、4M2704=2.7M3004=3M3304=3.3M3604=3.6M3904=3.9M4304=4.3M4704=4.7M5104=5.1M5604=5.6M6204=6.2M6804=6.8M7504=7.5M8204=8.2M9104=9.1M1005=10M 各規(guī)格的電阻值區(qū)別差異種 類碳 膜金 屬 膜氧化金屬膜繞 線水 泥厚膜芯片薄膜芯片合成電阻適用功率1/8W1/2W1/8W1/2W1/2W5W1/2含以上2W40W1W(含)以下1/2W1/4W(含)以下1/2W(含)以下額定溫度7070707070707070工作溫度-55125-55125-55235-55235-55235

39、-55125-55125-55125阻值范圍12.2M101M0.1510K0.52K0.5150K110M13.3M15.6M阻值誤差±5%±0.1%±0.5%±1%±5%±1%±5%±1%±5%±1%±5%±0.1%±1%±5%±10%TCR±200-1300PPM±10±100PPM±350PPM±300PPM±350PPM±200600PPM±25±

40、100PPM0-15%基體瓷棒瓷棒瓷棒瓷棒瓷棒、玻瓷片瓷片合成體電阻體炭膜金屬膜氧化錫膜鎳鉻合金、炭膜金屬膜炭粉封裝EPOXYEPOXYSiliconSiliconCement&CeramicMeral glass/EPOXYMeral glass/EPOXYPlasstic備注低成本 耐潮 TC高低 適高精密度低 耐高溫 不燃性低 耐高溫 穩(wěn)定度高 不燃性 值范圍小、同散熱佳 不燃性體積小 無電感 溫度系數(shù)低體積小 無電感 溫度系數(shù)低無電感 電容 雜音較大3 電感：47UH 10% (12*6MM)貼片功率電感   特點：   

41、60;  EMI/EMC SMD貼片功率電感。    高質量因子。    大電流和大電感量。    為表面焊接而專門設計,適用于回流焊SMT工藝。   用途：    廣泛用于調節(jié)器、功率放大器、電源、 消除EMI/RFI噪音之濾波器、節(jié)能燈、玩具及其它電子設備。   外形圖：       

42、    品名表示法：           特性：規(guī)格ABC SMD35213.5 ± 0.23.1 ± 0.22.1 ± 0.3圖1SMD45324.5 ± 0.24.0 ± 0.23.2 ± 0.3SMD58455.8 ± 0.25.2 ± 0.24.5 ± 0.3SMD78357.8 ± 0.27.0 ± 0.23.5 &#

43、177; 0.3SMD78507.8 ± 0.27.0 ± 0.25.0 ± 0.3SMD104010 ± 0.29.0 ± 0.24.0 ± 0.3SMD105410 ± 0.29.0 ± 0.25.4 ± 0.3CDRH 12412.0 ± 0.312.0 ± 0.35.0 MAX圖2CDRH 12512.0 ± 0.312.0 ± 0.36.2 MAXCDRH 12712.0 ± 0.312.0 ± 0.38.0 MAX 

44、0; 電壓表達方式：品     名電感量L（H）電感量公差直流電阻DCR（）max額定電流RDC（A）maxSMD4532 1R0M1.0±20 %0.0333.80SMD4532 1R4M1.4±20 %0.0383.30SMD4532 1R8M1.8±20 %0.0422.91SMD4532 2R2M2.2±20 %0.0472.60SMD4532 2R7M2.7±20 %0.0522.43SMD4532 3R3M3.3±20 %0.0582.15SMD4532 3R9M3.9&#

45、177;20 %0.0761.98SMD4532 4R7M4.7±20 %0.0941.70SMD4532 5R6M5.6±20 %0.1011.60SMD4532 6R8M6.8±20 %0.1171.41SMD4532 8R2M8.2±20 %0.1321.26SMD4532 100M10±20 %0.1821.15SMD4532 120M12±20 %0.2101.05SMD4532 150M15±20 %0.2350.92SMD4532 180M18±20 %0.3380.84SMD4532 220M22&

46、#177;20 %0.3780.76SMD4532 270M27±20 %0.5220.71SMD4532 330K33±10 %0.5400.64SMD4532 390K39±10 %0.5870.59SMD4532 470K47±10 %0.8440.54SMD4532 560K56±10 %0.9370.50SMD4532 680K68±10 %1.1170.46 SMD5845 100M10±20 %0.1001.44SMD5845 120M12±20 %0.1201.40SMD5845 150M

47、15±20 %0.1401.30SMD5845 180M18±20 %0.1501.23SMD5845 220M22±20 %0.1801.11SMD5845 270M27±20 %0.2000.97SMD5845 330L33±15 %0.2300.88SMD5845 390L39±15 %0.3200.80SMD5845 470L47±15 %0.3700.72SMD5845 560K56±10 %0.4200.68SMD5845 680K68±10 %0.4600.61SMD5845 820K82&

48、#177;10 %0.6000.58SMD5845 101K100±10 %0.7000.52SMD5845 121K120±10 %0.9300.48SMD5845 151K150±10 %1.1000.40SMD5845 181K180±10 %1.3800.38SMD5845 221K220±10 %1.5700.35 SMD7835 100M10±20 %0.0801.44SMD7835 120M12±20 %0.0901.39SMD7835 150M15±20 %0.1001.24SMD7835

49、 180M18±20 %0.1101.12SMD7835 220M22±20 %0.1301.07SMD7835 270M27±20 %0.1500.94SMD7835 330M33±20 %0.1700.85SMD7835 390M39±20 %0.2200.74SMD7835 470M47±20 %0.2500.68SMD7835 560K56±10 %0.2800.64SMD7835 680K68±10 %0.3300.59SMD7835 820K82±10 %0.4100.54SMD7835 101K100±10 %0.4800.51SMD7835 121K120±10 %0.5400.49SMD7835