【经验】高频三极管如何选型?
高频三极管一般应用在VHF、UHF、CATV、无线遥控、射频模块等高频宽带低噪声放大器上,这些使用场合大都用在低电压、小信号、小电流、低噪声条件下,其功率最大2.25瓦,集电极电流最大500毫安。本文SLKOR将对高频三极管的选型进行介绍。
高频三极管在使用过程中的选用原则为:
(1)当三极管使用的环境温度高于30℃时,耗散功率Pcm应降额60~80%使用。
(2)三极管应尽量远离发热元件,以保证三极管能稳定正常地工作。
(3)在三极管的参数中,有一些参数容易受温度的影响如iceo、ubeo和β值。其中iceo和ubeo随温度变化而变化的情况如下:
①温度每升高6℃,硅管的iceo将增加一倍;
②温度每升高l0℃,锗管的iceo将增加一倍;
③硅管ubeo随温度的变化量约为1·7mv/℃。
(4)如果使用在3V、5V的低电压的情况下,击穿电压不要选择的太大,击穿电压过大(高于15V),其在低压时的线性就不好,反而影响使用。
(5)输入信号较弱时,建议在初级放大使用插入增益小一些的2SC3356,次级放大选用增益大些的BFQ591或者2SC3357。
(6)选用的高频三极管的特征频率fT应为实际使用频率的六到八倍(至少3倍以上),以减小使用时的插入噪声以及提高增益。
(7)在高频或微波电路中使用的三极管,为了减小寄生效应,引出线应尽量短,最好使用表面贴封装形式。
(9)为防止功率三极管出现二次击穿,应尽量避免采用电抗成分过大的负载。
(10)在能满足整机要求放大参数的前提下,选用插入增益与直流放大系数hfe合适的三极管,以防产生自激。一般的,初级放大要求插入增益较小,其直流放大系数hfe要选择较大的,次级放大要求插入增益较大,其直流放大系数hfe不宜过大。
(11)高频三极管在接人电路时,应先接通基极。在集电极和发射极有电压时,不要断开基极电路。
(12)高频三极管的种类很多,因此应根据具体电路的要求来确定三极管的类型,然后根据三极管的主要参数进行选用。
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萨科微半导体领导者
型号- BTW69,MB10S,SL25T135FL,BTA26-1000,SL2306,SL2307,MB10F,SL2308,SMCJ440CA,SL2309,SL55X,SL40N60C,SL2310,SL2312,SL3400,SL54X,SL3402,SL3404,SL4614,RS1A,RS1M,SMF5.0CA,SS120F,SL13N50FS,MMBT4401,FMMT591,MMBT4403,SLESDL0603-24,LM317,2N5551,SL21814,WE07DF-B,MMSZ5259B,SL2016384MXXX,S2MB,SL2301,SL2302,SL53X,SL2305,1SMB5921B,BTB20-600,SL322526MXXX,SL25N10,S2MF,SLESD8D36V,SL252025MXXX,SL201624MXXX,SLESD5Z5.0C,SL201616MXXX,2SK3018W,SL4949,SS52BF,2SB1261,SL10N65F,ZM4727,2SB1132,1SMA4777A,SL1609SH,DB307S,SL8N65F,SL05N06A,GBLC15CI,2SA812,SLESD8D15V,FMMT493,FMMT491,SMDJ170A,WE05DF-BS,2SC3357,SL78LXX,SL1609SL,SMF5.0A,US1AF,SL12020BT,MMBZ5221B,MMDL914,SL1609TH,SL05N06Z,RS2A,SL42764,SL1609TL,SL53N65CT,SS320BF,SLESD5Z7V0,FMMT489,RS2M,UMB10F,MM5Z2V0,GBLC03CI,MMBT5401,BT136-600,SS22,LMV321,SF1006DS,SL403,2N5401,SL6520B,SL21867,KBL4005,SL12030BT,UMB1F,SMF58CA,SS32,SMBJ5.0,2SK3018,SMBJ170CA,KBL410,BTA60-1200,GBLC12CI,US2AB,SL322512MXXX,WE24DF-B,SS12,SL3N170AP,SL503224MXXX,US2AF,SMF58A,SL50T65FL,SL1619SH,SL322527MXXX,SL42744D,SL1619SL,SS210B,LM321,SLESDL0603-16,SL201632MXXX,GBU410,IRLML6401,BCP51,BCP53,BCP52,BCP55,BCP54,BZX84C43,BCP56,SL1619TH,SL2733,SL1619TL,SL52X,TL432,TL431,SS52,NUP2105LT1G,SL201625MXXX,SL49SM3579M20P-20,SL252026MXXX,BTA80-1200,SLESDL0603-05,BCP68,SL27211DR,SLESD8D3V3,MMSZ5221B,TL431B,SL49SM26M20P-20,F1A,TL431A,DB207S,GBLC24CI,SS220F,2N7002E,BT136-800,F1M,SL85XXX,SL4822A,SL76N60CT,MC34063S,PC817,SL2328A,SL18N50F,BT137-600,MMBZ5262B,SM24C,SM36C,LMV358,RS3AB,SL27531,SS310C,SS310B,DB107S,SM12C,DB301S,SL40T120FL,KBL610,SL40N65CF,SL80N65CTL,SL12005B,GBP4005,SL49SM25M20P-20,SL22N120A,SL002N02K,SLESD5Z24,SL27525,SL27524,MMDT2222A,SL27523,US2MF,SL503225MXXX,SL252024MXXX,US2MB,SLESD3B5CM,SL05N10A,SL12P03S,C945,US2A,BFG520,SL252016MXXX,SL322532MXXX,SL2319A,SL40N65CT,SLESD5Z36,GBU6005,SL9013MXXXX,RS2AF,SL73XX,US2M,SS320F,ULN2803,SD20C,2SB1197K,SL4409N,ZMM2V0,SL12015B,SLESD5.0U035,US1A,SL10N120A,BTA08-600,SL0501,SL8205S,SL75T65FL1,US1M,BAS316,2SD965A,SL80N120A,S8550,SMBJ5.0C,S6AC,M1,BSS123,SL0601,LM2904,M7,SLPESD15VL1BA,LM2902,GBP3005,SL2309A,SLPESD0402M07,BT137-800,MM1Z39B,SLESD9B5.0ST5G,SLPESD0402M05,SMCJ440A,SMAJ5.0CA,SLPESD0402M03,GBU8005,BTA12-600,SLPESD2CAN,SL27212,SM20C,RS5AB,SS520F,SL201630MXXX,MMDT3904,BSS138,BTA41-1600,FR101,MMDT3906,SL322525MXXX,SM4001PL,FR107,SMDJ5.0CA,BTA06-600,BZT52B51BS,SLPESD0402M18,SL322530MXXX,SL17010BT,SLPESD0402M16,WE12DF-B,SLPESD0402M12,SL15T65FL,MM5Z75,SMDJ5.0A,SL80N10,DB201S,SL54MXXXX,S1A,S5AC,SL12010B,2SD1624,S5AB,SL6206-XXMR,SMCJ5.0CA,B772,S1M,KBL6005,SMBJ170A,MMBT2222A,AMS1117-XX,SL75XX,SL322524MXXX,DB101S,GBP2005,S2A,BT138-600,2SC1815,SL10N10A,SLESD9B3.3S,SL4813A,S2M,SL002P02K,SL50N120A,SL9435A,SL4184,S10AC,SL80N65CT,1SMA4728A,BC857B,RS5MB,SLESD5Z15V,SL2005E,SL6508B,SL4264-2,ZMM200,MMDT2227,SL1625SL,SM08C,SL252030MXXX,SL20N10,GBU4005,SD03C,SD15C,SL1625SH,BC856B,BTA10-800,SL1625TL,SL306X,GBP210,BT169D,SL4284,SL4041,SL1625TH,SL1613SH,ABS2,BTA26-800,SS510B,ABS10,1N4001W,SS510C,SL6506B,S3AC,S3AB,KBP4005,2SC1623,2SC2712,SF1001DS,2SD1781,ES1JF,BZT52B43,1SS226,SL1613TL,SL305X,SS52F,SL27714,SL1002B,BTA41-800,SD05C,SL4275,SL1613TH,SS52B,SS52C,S10MC,SS525,BT138-800,SLESD2401QC,2SD1898,BZT52C2V4S,SL2333A,SL100N03,DSK220,SL40N60CF,D882,ES2JF,GBP310,SL3N06,SL304X,SLM511,SL10P04S,SL49SM24M20P-20,BT139-600,1SS355,SL4N65F,S2AF,SL503212MXXX,SL3401S,1N4148W,S2AB,C1815,BTA04-600,ABS210,MMBT3904,ES2JB,KBP2005,MMBT3906,SL9945,MAC97A8,SL78XX,SL1623SL,SL7888,SL303X,ABS201,MAC97A6,BAV99,SLM501,SL17025BT,SL2192,SLPESD0201M24,KBP210,BZT52B3V0BS,SL1623SH,RS1AF,BTA41-1200,SLESD5Z12V,MB1F,SL4407A,1SS181,BC848B,78MXX,SM15C,SS510BF,GBP410,SM03C,MB1S,SL-10XX,SL302X,LL4148,SLM611,SLPESD3V3L1BA,SL2181,SLESD5Z2V5,MMBTA05,SL1623TH,SMAJ5.0A,MMBTA06,SL20T65FH,SL2184,SL14N120A,SL1623TL,SL2186,BT131-600,BC847B,SLPESD12VL1BA,2SC2873,DSK310,SL40T65FL,ES3JC,S8050,ES3JB,BAV70,SL27519,MMBT2907,MCR100-8,BCX51,SL27517,BSN20,MMBD4148,BCX53,SL301X,BCX52,BCX55,SLM601,SM18C,SLESD5B5CU,BCX54,SLM600,SL322516MXXX,SL27511,BAV20W,BCX56,SL27211E,KBP310,SL7603PXXXX,SL2302M,SLESD8H5.0CT5G,SL6800C,IRF640,SL7N65CN,SLESD8D5.0C,SD12C,S9013,SD24C,S9014,S9015,BC846B,SL10N06A,S9012,SL7N65CF,BT139-800,KBP3005,SL7N65CD,MCR100-6,BZT52C2V4,SL7N65CI,SM05C,2N3904,SL3139,SL27624,SS8550,SMAJ170CA,US1MF,BAV21W,SL8820,S9018,2N3906,SD36C,MM3Z75,BZT52C43S,BTB10-600,MMBTA55,SLW611,RS1MF,SL3134K,SS110,SS32BF,SL11N65CD,1N4007W,SL11N65CF,SL6512B,SL252012MXXX,SL8052A,SL1629SH,MM1W3V3,SL1629SL,KBP410,SL20162712MXXX,SLPESD5V0L1BA,SS22B,1N4148WS,SL60T65FL,1N4148WT,MMBTA56,DSK32,SS22F,SLW601,MMBTA44,SM4007PL,SL6540BT,MMBTA42,SL49SM6M20P-20,SL252040MXXX,SL36N120A,SL12040BT,SL201626MXXX,SL50N06D,SL1629TH,SL50328MXXX,SL827,BT151,BT152,SL1629TL,SL49SM8M20P-20,SL49SM27M20P-20,SL826,DSK22,SL11N65CQ,SL49SM12M20P-20,SL49SM16M20P-20,SL49SM10M20P-20,S6MC,2N7002,M1F,SLPESD0201M05,MMBT6517,SL322540MXXX,GBLC08CI,2SC5824,2SC4617,SL2009,ES1K,GBU610,SL6510B,BZT52B2V4,SL12N65F,SL1605SH,ULN2001,SL2014,SL2015,SL2136,SL1605SL,MM1W330,BSS84,BZX84C2V4,MM3Z2V0,SL9193MXXXX,DSK12,BAW56,SL21N65C
SLKOR三极管选型表
SLKOR提供如下参数的三极管选型,Iᴄ(A):-3~5;Vᴄʙᴏ(V):-500~700,Vᴄᴇᴏ(V):-400~450及多种不同的封装尺寸,如:SOT-23,SOT-363和SOT-89不等
产品型号
|
品类
|
Polarity
|
Iᴄ(A)
|
Vᴄʙᴏ(V)
|
Vᴄᴇᴏ(V)
|
Vᴇʙᴏ(V)
|
Vᴄᴇ(sat)(V)
|
Package
|
S8050
|
三极管
|
NPN
|
0.5
|
40
|
25
|
5
|
0.6
|
SOT-23/TO-92
|
选型表 - SLKOR 立即选型
【元件】低电压NPN型晶体三极管S8050,频率150MHz,适用于音频放大器和通用电路设计
S8050晶体管是一种常用的三极管,具有简单易用、性能可靠等优点,在各种电子设备和电路设计中有广泛应用。它的引脚结构是发射极、基极和集电极,其中发射极连接到P型材料,集电极连接到N型材料,而基极则位于中间。
【产品】采用平面NPN硅外延双极型工艺的高频低噪声晶体管2SC3356,具有高功率增益、低噪声系数等电流特性
2SC3356是萨科微推出的一款超高频低噪声晶体管,采用平面NPN硅外延双极型工艺。具有高功率增益、低噪声系数、大动态范围和理想的电流特性,采用SOT-23贴片式封装,主要应用于VHF,UHF和CATV高频宽带低噪声放大器。
【产品】采用SOT-89贴片式封装的NPN高频低噪声晶体管2SC3357,功耗极限值为1200mW
2SC3357是萨科微推出的一款超高频低噪声功率晶体管,采用平面NPN硅外延双极型工艺。具有高功率增益、低噪声系数、大动态范围和理想的电流特性,采用SOT-89贴片式封装,主要应用于VHF,UHF和CATV等高频宽带低噪声放大器。
时科新品应用领域
型号- SK02N06E,SK04N90B-TF,SK10N70B-TF,SKIS40N120-T7,LM358-T8,SM36,SKG45N10-T,SK50P04,SKG60N03-T,SM18,UC3845-P8,Q-SSC10120-T,SKQ18P02AD,SKIS50N65-T7,SK14N80B-TF,SRF957,SKG130N10-T,SKG90N10-T,SM24,Q-SSC08120-T,SK07N80B-TF,SM20,SKG365N10-T7,SKG60N03AD,SK12N90B-TF,LM358-M8,UC3844-D8,SKQ40N04AD,Q-SSC1565-T,SKQ90N03AD,SK80N03,LM358-E8,Q-SSC1065,SKG10N04-P8,SK50P04-P8,SKQ40N04BD,Q-SSC1065-TF,SKQ30N04AD,SKQ80N03AD,SKGI8020B165,Q-SSC2090-T7,SK240N04-TF,BFG93A/X,SK10N03-P8,Q-SSC20120-T,SKQ14N15AD,SKIS75N65-T7,SK18N20B-T,SK03N120B,SKQ30N04BD,Q-SSC1565,2SC3585,PCT801,SK03N06L,SK240N04,SKG195N04,SK18N03-P8,SK10N03,UPC2712,BFG540,SK22P04-P8,SKQ35P03AD,BFG93A,SKG100N12-T,SK20N65A-TF,Q-SSC10120,SKG100N06AD,SKG10N04,SKG195N04AD,SKQ40P02AD,UC3845-D8,SKG100N06,SKQ90N10AD,Q-SSC05120-T,BT151-800,SK05U45AAP,SBR951,BFG540/X,SM08,SK22P04,SK80N03-T,UC3844-P8,SKG210N08-T7,SKQ50P03AD,SKG195N04-T,Q-SSC0865-TF,SKG130N10AD,SBR941,SDV301N3,SKG100N15-T,Q-SSC0865,SKG60N03,LM358-P8,SKQ56P03AD,SK09N150-T7,SM03,SK35P10,Q-SSC05120
高频三极管的选用方法和原则
型号- BFR540,BFR520,BFG540X,BFG520X,BFG520,BFQ67,BFQ67X,BFQ67XR,BFG540,BFQ540,2SC3356,BFS540,2SC3355,2SC4228,BFS520,2SC3357,BFG540XR,2SC4226,BFG520XR,2SC4227,BFR93,2SC3838,BFG591,BFR93A,PBR951,BFQ591
合科泰电子NPN晶体管选型表
合科泰电子提供以下参数选型:集电极基极电压VCBO(V):20~900V、集电极-发射极电压VCEO(V):12~800V、集电极电流Ic(mA):20~6000mA、放大倍数(最小)HFE(MIN):10~10K、放大倍数(最大)HFE(MAX):40~3200、耗散功率PD(mW):100~2000mW等
产品型号
|
品类
|
封装形式
|
沟道类型
|
集电极基极电压VCBO(V)
|
集电极-发射极电压VCEO(V)
|
发射极-基极电压VEBO(V)
|
集电极电流Ic(mA)
|
放大倍数(最小)HFE(MIN)
|
放大倍数(最大)HFE(MAX)
|
耗散功率PD(mW)
|
2SC1162
|
NPN晶体管
|
TO-126
|
NPN
|
35
|
35
|
5
|
2500
|
60
|
320
|
750
|
选型表 - 合科泰电子 立即选型
蓝箭电子三极管选型表
提供蓝箭电子三极管选型:电压VCBO:-400V—1100V,VCEO:-400V—800V,FT:最高可达7000MHz。现有封装DNF1006,SOT-23, SOT-363, SOT-89, TO-92/LM, TO-252/251, TO-126/F, TO-220/F
产品型号
|
品类
|
POLARITY
|
Pᴄ(mW)
|
Iᴄ(mA)
|
Vᴄᴇᴏ(V)
|
Vᴇʙᴏ(V)
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Vᴄᴇ(sat)(V)
|
Iᴄ(mA)
|
IB(mA)
|
Vᴄᴇ(V)
|
Iᴄ(mA)
|
R1(KΩ)
|
R2(KΩ)
|
fT(MHz)
|
Package
|
DTC114EKA
|
数字三极管
|
NPN
|
200
|
100
|
50
|
10
|
0.3
|
10
|
0.5
|
5
|
5
|
10
|
10
|
250
|
SOT-23
|
选型表 - 蓝箭电子 立即选型
时科双极型晶体管选型表
时科提供双极型晶体管的以下参数选型:PCM(mW):-1200~10000mW,Hfe MIN:25~8000,Hfe MAX:180~1200
产品型号
|
品类
|
POLARITY
|
PCM(mW)
|
Ic(mA)
|
BVcbo(V)
|
BVceo(V)
|
BVebo(V)
|
Hfe MIN
|
Hfe MAX
|
Hfe@VCE(V)
|
Hfe@lc(mA)
|
VCE(SAT)(V)
|
VCE(SAT)@lc(mA)
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VCE(SAT)@Ib(mA)
|
Ft(Mhz)
|
Package
|
BC846AW
|
双极型晶体管
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NPN
|
200
|
100
|
80
|
65
|
6
|
110
|
220
|
5
|
2
|
0.6
|
100
|
5
|
100MIN
|
SOT-323
|
选型表 - 时科 立即选型
电子商城
服务
可定制电感可承受4.5KV高压,可适配于30MHz高频应用;支持平共模电感、谐振电感、PFC电感、大电流直流电感等产品电压/频率等参数性能定制;通过AECQ-200认证。
最小起订量: 100000 提交需求>
可加工PCB板层数1~40,最小线宽/间距内层: 2.5/3mil (H/H OZ base copper);最小线宽/间距外层: 3/3mil (H/H OZ base copper);成品交货尺寸范围:10 * 10mm~570 * 1200mm。板厚范围:0.4mm-10mm。支持通孔板、HDI板、柔性板、刚柔结合板打样、小批量及批量生产。
最小起订量: 1 提交需求>
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