【产品】时科变容二极管KV1471E，主要在高频电路中用作自动调谐、调频、调相等

时间： 2023-02-14 来源：时科电子公众号

技术问答

时科的变容二极管 KV1471E又称"可变电抗二极管"，是利用PN结反偏时结电容大小随外加电压而变化的特性制成的。反偏电压增大时结电容减小、反之结电容增大，变容二极管的电容量一般较小，其最大值为几十pF到几百pF，最大电容与最小电容之比约为5:1。

它主要在高频电路中用作自动调谐、调频、调相等、例如在电视接收机的调谐回路中作可变电容。

时科的变容二极管KV1471E主要是通过结构设计及工艺等一系列途径来突出电容与电压的非线性关系，并提高Q值以适合应用。过施加反向电压，使其PN结的静电容量发生变化。因此，经常用在自动频率控制、扫描振荡、调频和调谐等电路中。

通常是采用硅的扩散型二极管，但是也可采用合金扩散型、外延结合型、双重扩散型等特殊制作的二极管，因为这些二极管对于电压而言，其静电容量的变化率特别大。

结电容随反向电压VR变化，取代可变电容，用作调谐回路、振荡电路、锁相环路，常用于电视机高频头的频道转换和调谐电路，多以硅材料制作。

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授权代理商 - 世强先进（深圳）科技股份有限公司线上商城技术资料

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本文主要介绍7大常用二极管的特性及标识：肖特基二极管肖特基（Schottky）二极管，又称肖特基势垒二极管（简称SBD），它属一种低功耗、超高速半导体器件。最显著的特点为反向恢复时间极短（可以小到几纳秒），正向导通压降仅0.4V左右。

技术探讨发布时间 : 2024-05-08

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時科2.0品牌手册

型号- SMAJ6.0CA,SMAJ40CA,MMBZ5258B,1SMA4749AG,S2MW,SD15,SD12,SD18,HD04,RS3BBG,RS3BBF,HD06,HD08,MMBZ5259B,ES2JBG,ES2JBF,SD05,SD03,HD10,SMCJ14CA,S2MF,S2MG,RS3BCG,MMBZ5256B,2SB1260,SMDJ78AG,SD36,SMCJ100CA,SS320CG,SK2301AAVP,SMBJ300A,SMBJ150CA,BZT52C8V2,MMBD2838,MMBD2836,SMAJ70A,SD20,MMBZ5257B,SD24,SMDJ51CAG,SS320BF,SS320BG,SK210WA,MBRD10100,SMCJ30A,SK32CG,BC847PN,2SA1036,2SA1037,SKM34-AS,SF501DS,SMDJ160AG,SMDJ150CAG,RB520G-30,FMB4SK,1SMAF4749A,GBLC12CI,SK05N65B-TF,SK7808A,SMAJ100A,BAT46WS,SS210G,BAS40W,SS210F,SK7809A,SK7805A,MB320S,SMBJ400CA,MM3Z8V2,MBRD10150,SMDJ75CAG,MB320F,SK1912AU,P6SMB51CA,1SMAF4747A,MBR10100CTF,SK7806A,MSB20K,MSB20J,MSB20M,SMCJ220CA,A733,MM5Z4V7,MM5Z56V,1SMA4736AG,MM5Z4V3,MSB20G,MSB20B,1SMAF4748A,MSB20D,MM5Z3V6B,MM5Z51V,1SMA4771AG,MMBZ5250B,1SS400,P6SMB16A,2SC5053,1SMAF4745A,SMAJ18CA,MBR20100CT,LUM4B,SRABS20M,SRABS20J,SRABS20K,MMBZ5251B,P6SMB15A,1SMAF4746A,SK58CG,LUM1B,UMB6SK,BAS70-06,MBR30200CTF,BAT760,BAS70-04,BAS70-05,1SMAF4743A,RS2AF,RS2AG,MM5Z3V3B,P6SMB16CA,LUM2B,SMDJ14CAG,DS320W,SMBJ90A,SMF64A,SF305DS,SMBJ12CA,SS82CG,P6SMB13A,DMP3098L,B330AG,SS212F,1SMAF4744A,SD101BWS,SK312WA,EABS26,SMBJ5.0A,1SMAF4741A,2SD1766,2SC2812,ES3EBF,ES3EBG,US1BW",MMBZ5254B,P6SMB12A,SK10N06,SS520G,EABS22,MB6FK,EABS21,EABS24,SS520F,MM5Z3V9B,1SMAF4742A,MBR30150CTF,MMBZ5255B,P6SMB10A,P6SMB11A,SMDJ26CAG,LUM8B,UMSB30B,SK7905AU,UMSB30K,P6SMB100CA,UMSB30J,UMSB30G,UMSB30D,SF318DS,SK4002WA,2SC2412K,UMSB30M,SK820CG,MMBZ5252B,SS215F,SM12,SMF60A,1SMAF4740A,ES2JLG,LUM6B,SK339AN,P6SMB82CA,SM05,P6SMB47CA,PXT8050,RS3KCG,SK338P,BZX84C5V6,P6SMB220CA,BZX84C5V1,SK32WA,RS2GF,RS2GG,TB315S,SS512F,SS512G,SD15C,SMDJ16AG,SMF70A,ES3DCG,SF323DS,SMAJ48CA,SMBJ43CA,MBRD3100,KBP301G,S3AF,SMCJ7.5A,SMAJ400A,2SC2712,2SD1664,SK336P,ES3DBF,2SC2714,MBR2060CTF,ES3DBG,KBP10G,BZT52B43,SS52F,SS52G,1N4001F,1N4001G,SMBJ18A,KBP302G,SS510F,SS510G,SMAJ300CA,SXT5401,RS2GW,FMB4FK,D882,1N4002G,FTB4FK,SK337N,1N4002F,1SMA4741AG,FTB4FT,RS2BW,KTA1298,SS315BG,1N4003F,SMBJ16A,SS315BF,SMBJ30CA,SS1060CG,MMBTA14,MMBTA13,S3BF,KDR367,SMF110A,SK335N,SMAJ8.5CA,RS2AW,SMAJ180A,1N4004G,1N4004F,SMBJ17A,SK28BG,MMBTA05,MMBTA06,RS2BG,SMBJ120CA,RS2BF,SK10N65B-TF,2SC2757,MM5Z3V0B,RS2DW,SMDJ110CAG,SMBJ14A,P6SMB18A,1N4005F,SMBJ130A,BAR64-02,SD12C,SS515F,SS515G,S3DF,ES2ABG,ES2ABF,RS3KBG,KBP3005,RS3KBF,SMBJ15A,SS315CG,SMAJ170CA,1N4006F,RS2DF,RS2DG,MMBTA55,MB6SK,MMBT3904K,ES5BBG,MB310S,PZT2222A,SMBJ12A,MMBT3904T,SMAJ6.0A,ES5BCG,MB310F,SMDJ54CAG,RSX101VA-30,KBP308G,1N4007F,1N4007G,MMBT3904M,SS58F,SS58G,MMBTA56,MMBTA43,FDV303N,MMBTA42,2SC4505,SMCJ7.0A,SMBJ13A,ES5BBF,S3GF,SK2371AA,SDI3068,BCX54-16,M28S,US3ACG,GBLC08CI,PXT8050A,SMCJ150A,SMDJ51AG,MM1W330,SMDJ8.5CAG,S3JF,SMAJ78A,SK14WA,SK8810MF,US3ABG,US3ABF,SMBJ10A,SMBJ11A,SMAJ22CA,SMCJ6.5CA,TB310S,SMAJ75A,SMCJ36A,US5GCG,RS2KF,MMBTA92,RS2KG,79L010S,SS54G,BZT52B22,BZT52B24,1SMA4754AG,2SK1590,B360AG,BZT52B27,1N4448W,RS2KW,B5817WL,KBP304G,P6SMB170A,SS54F,BZT52B20,SMCJ45CA,US5GBF,US5GBG,RS2JG,MBR4045CTF,2SC4548,BZT52C7V5,B0520WS,RS2JF,FMSB20B,SBLC08CI,MB315S,FMSB20M,BZT52B33,SMDJ78CAG,RS2JW,BZT52B36,2SD2170,B360BG,BZT52B39,SS8050W,FMSB20D,FMSB20G,SD18C,MB315F,SS510LBG,S3KF,FMSB20K,BZT52B30,FMSB20J,SMAJ6.5A,SMBJ440A,RS2MF,RS2MG,BZT52B4V3,SMCJ58CA,BZT52B4V7,1SMA4767AG,SF310DS,FTB4ST,RS2MW,KBP306G,SMCJ33A,SS56F,SS56G,PMEG3010ER,MBR10150CT,MMBTA63,BZT52B18,S6ACG,FTB4SK,BZT52B10,BZT52B11,SMDJ7.5AG,BZT52B12,2SD2150,BR8205,BZT52B13,BZT52B15,BZT52B16,S3MF,S3GCG,MBR3060CT,1SMB5947B,GS1DG,SKM42A3729T-C,SF319DS,SK4003WA,MMBZ5246B,SMF6.0A,SD103AX,SD103AW,RB160M-40,2SD2098,MM3Z7V5,SK10N70B-TF,MM5Z47V,TL432A,MM5Z3VO,RB160M-30,1SMB5948B,SMAJ60A,S3GBG,MM5Z3V9,KDS160E,SMDJ20AG,SK28WA,MM5Z3V3,MM5Z3V6,MBRD10200,SMCJ7.0CA,SMCJ20A,SK2302A,S2DBF,SKR1GWA,SS210LBG,1SMB5949B,S2DBG,SMDJ17CAG,SF502DS,SMBJ85A,SS52BF,SS52BG,TB2S-10,2SB1132,SK2301A,BAV19WS,SS54BFL,BCX51-16,BAV19WT,FTB2SK,GS1GG,MM5Z6V2B,SS52CG,MMBZ5245B,BAV19WL,FTB2ST,SK2300A,MBR3060CTF,UMSB40B,SD103AWS,MBR4040CTF,SMCJ13CA,SK510CG,SKQ55P02AD,MM5Z43V,SK2307A,SS38F,SS38G,MSB30M,SMCJ26CA,MSB30J,MSB30K,1SMA4735AG,MM1W300,SMDJ64AG,KSA1182,MM5Z6V8B,MSB30G,MSB30B,MSB30D,SD103CW,SK33CG,SMAJ85CA,1SMA4748AG,GS1JG,SD103CX,P6SMB180CA,SMBJ90CA,SKML2502,S10DCG,1SMAF4759A,SMAJ110A,UTB4SK,ESD0501BL,BAT60B,TL431N,UTB4SH,P6SMB7.5A,SD103BX,GS1KG,SD103BW,2SB1189,SMDJ30CAG,2SB1188,TL431A,SS220F,DMN3052L,SK7815A,GS1MG,1SMAF4757A,GBJ6BG,RS5ABF,RS5ABG,SMF78A,P6SMB27A,SD101CWS,1SMAF4758A,GBJ6AG,RS5ACG,SMBJ24CA,SS510CG,2SB624,MBRD3150,1SMAF4755A,BAS321,SK15U100AA,MBR20150CTF,SMBJ188CA,P6SMB8.2CA,1SMAF4756A,BAS316,UMSB40J,S8550,MBR30100CT,UMSB40G,UMSB40D,1SMAF4753A,BSS123,SMF75A,SK7811A,SK12N65B-T,UMSB40M,MMBZ5242B,UMSB40K,P6SMB24A,SMCJ440A,SMDJ33AG,SK08N65B-T,BSS138,SK7812A,SF306DS,SMBJ11CA,MMBZ5243B,1SMAF4754A,2SD1628,SK2301AVP,1SMAF4751A,2SD1624,MBR20200CTF,MMBZ5240B,1SMA4770AG,P6SMB22A,GBJ6D,GBJ6B,GBJ6A,GBJ6M,GBJ6K,2SD1615,GBJ6J,SMDJ5.0AG,2SD1614,1SMAF4752A,SS212BG,GBJ6G,P6SMB550CA,P6SMB20A,SKQ50N03BD,MMBZ5241B,MBR2060CT,P6SMB200A,BBY56-02W,BAW70T,2SD1619,SK40N15,78L33,GBJ6KG,SF311DS,S10MCG,GBJ8G,S2MBG,S2MBF,GBJ8D,GBJ8B,SD03C,GBJ8A,G

商品及供应商介绍 - 时科 - 2021/8/19 PDF 中文下载

【产品】首款无线接收调频广播的调频接收机，可自动调节变容二极管的电容值

Si4704/05是Silicon Lab最申请了具有先进信号处理算法的自谐振网络专利，以确保天线在设备的每个频率调谐下保持最高效率，大大增强了板卡工程师对天线的选择空间，提高了设计效率。

新产品发布时间 : 2018-03-14

BB910 SK VARIABLE CAPACITANCE DIODE SILICON TYPE

型号- BB910

数据手册 - 时科 - REV.08 - 2016/9/19 PDF 英文下载

KV1471E VARIABLE CAPACITANCE DIODE

型号- KV1471E

数据手册 - 时科 - REV.08 - 2018/9/14 PDF 英文下载

科信公司简介2023

商品及供应商介绍 - 科信 - 2023/5/4 PDF 中文下载

1S2638 VARIABLE CAPACITANCE DIODE SILICON TYPE

型号- 1S2638

数据手册 - 时科 - REV.08 - 2016/9/19 PDF 英文下载

Product Selection Guide

描述- Skyworks Solutions, Inc. is empowering the wireless revolution, connecting everyone and everything, all the time. Our highly innovative analog and mixed signal semiconductors are connecting people, places, and things spanning a number of new and previously unimagined applications within the automotive, broadband, cellular infrastructure, connected home, industrial, medical,etc.

型号- AAT4712,AAT3620,SKY67101-396LF,SKY12208-478LF,TT4P3-2120P2-6020,SMV1255-079LF,SKY13437-11,SKY65094-360LF,DME2850-255,SKY65364-11,SKY66013-11,TT4P2-1013P2-2020,AAT4710,SKY13454,CLA4609-000,CLA4609-240,DMF2185-000,DMJ2209-253,MAFR-000632-000001,AAT2783,AAT2782,AAT1451,APD0520-219,SKY13388-465LF,AAT1219,SMV2026-040LF,SE2605L,AAT1217,AS227-000,PART,SKY77554-21,AAT3369-1,DMJ2209-000,SKY65376-11,DMJ3944-000,SMV1255-011LF,AAT2552,MAFR-000533-000001,SKY65099-360LF,SKY77576-11,SMV2203-040LF,TT3P3-1227.6P1-1030,SMP1330-005LF,SKY77761-11,SKY77761-12,SKY13529-11,CLA4608-085LF,AAT2557,SMV1255 SERIES,AAT2556,SKY13398-000,MAFR-000629-000001,SMV1263-079LF,CDF7621-000,SMV1276-079LF,AS211-334,DMJ2990-254,SKY72301-22,SMV1236 SERIES,APD0505-240,APD0505-000,SMV1771,SKY13473-12-569LF,MAFR-000613-000001,DMF2184-223,SMV2025-079LF,SKY13418-485LF,SMV1494 SERIES,SKY13384-350LF,DME2850-000,DME2333-220,DMJ2208-223,DSG9500-000,SKY13488,SKY13373-460LF,DMF2185-251,SMV1251-040LF,SKY13484,DME2333-230,SKY66115-11,APD0520-240,SMV1247-079LF,APD0520-000,SKY73420-11,SMS7630,SKY73075-21,SMV1408-210,SKY65534-11,AAT3663,CLA4603-085LF,SMV1247 SERIES,SKY12211-478LF,CLA4608-240,CLA4608-000,SKY13498,SKY85004-11,SKY73087-11,SKY13492,CDC7630-000,SKY65708-11,TT6P4-1080P4-7015,SMV1408-219,DMF2184-000,SMS7621,DMF2837-221,AAT3673,AAT3672,SMV1408-203,DME2333-000,SKY65048-360LF,SKY65386-11,DME2850-225,SE2609L,APD0505-219,DME2333-250,SKY73422-11,SKY73101-11,SKY19001-001,DMJ2990-000,TT6P3-0836T-2520,SKY73078-459LF,TT3P3-1575.42P2-1030,APD0505-210,DMF2848-000,DMF2184-253,AAT3683,AAT3681,SC00560912,SKY13377-313LF,TT3P3-2450P1-1445,CLA4611-085LF,SKY77751-12,TT6P3-0745.3P3-1920,APD0505-203,SKY65352-11,DME2851-235,AAT3215,AAT1278,AAT3698,SC50004450,SMPA1302-079LF,DMJ2209-223,AAT3696,AAT1277,AAT1274,AAT3693,AAT1272,AAT3692,AS218-000,AAT3218,DMF2837-000,DMJ2777-220,DMJ3937-000,DMF2183-223,TT6P6-0750P0-5017,SKY13309-370LF,AAT3691,AAT1270,AAT1271,SKY65374-11,DME2851-000,SKY12236-11,SKY65170-21,DMJ2990-224,SMV1145,SKY73120,SKY77629-51,SKY13290-099,SKY12340-364LF,DMF2848-225,SKY67151-396LF,SMV1770-040LF,SMV1494-219,SMV1263 SERIES,TT6P6-1000P5-8530,DMJ2312-000,SE2537L,DMF2454-000,TT6P4-0722P4-4817,DME3946-000,TT6P5-1950P3-6040,AAT1282,SMV1763-040LF,TT6P6-2500P3-3635,TT6P3-0881F-2520,SKY13355-374LF,AAT3237,AAT3236,SMP1321 SERIES,DMJ2455-224,DMF2848-235,AAT3604B,DMJ2823-220,SMP1334-084LF,DMF2454-234,SE2621L,SKY77781-11,AAT3238,SKY85303-11,SC00820710,TT6P3-0860T-2020,DMF2183-000,CLA4607-240,AAT2601A,SKY13272-340LF,AAT2601B,SE2620T,CLA4607-000,SE2600S,DMJ2312-225,SKY66101-11,SKY77701,SKY65344-21,DMJ2823-250,AAT3242,AAT3603A,SKY77702,SKY77705,SMS3927,SKY66005-11,SMS3923,SKY73085-11,SKY77778-51,SMS3924,DMF2183-253,SMS3926,SMS3928-099,AAT3258,SKY13374-397LF,SMV1130,TT3P2-1068P0-3507,DMJ2823-000,SKY65704-22,SE2623L,SMS3922,SMV1494-203,SMV2204-040LF,SMV1494-210,SMS7630 SERIES,SE2593A20,SKY77778-61,SMP1345-087LF,SKYFR-000812,SMV1263-040LF,SMV1129,SMP1302-085LF,SKY65378-11,SKY77765,SMV2025-040LF,SKY77764,SKY65601-477LF,PD4W09-59LF,SKY77767,AAT2402M,SMV1493-219,SKY77762,DME3939-257,AAT2402S,SKY12407-321LF,SKY77769,SKY77527,SKY77768,SKY77529,DMJ2208-253,SKY65903-11,SKY73121-11,AAT3103-2,SMP1353-099,SMS3927 SERIES,AAT3103-4,MAFR-000618-000001,SKYFR-000827,SE2601T,SKY13445-368LF,SKY77753,SE5012T,SKY77752,SMP1304 SERIES,SKY77758,DME3939-000,SMV1771-040LF,SC02201518,CLA4606-240,DMF2828-000,SKY67100-396LF,CLA4606-000,DMJ2208-000,SMV1234-079LF,SMV1213-040LF,SC04701518,TT6P5-1960P0-6025,SKY85712-11,SKY13431-374LF,AAT2403A,APD0520-203,SKY77742,SKY85702-11,SKY77741,MAFR-000514-000001,DMF2454-224,DMF2828-232,SKY65366-11,SE2604L,MAFR-000667-000001,MAFR-000662-000001,SMV1233-079LF,SKY13322-375LF,SKY13370-374LF,MAFR-000645-000001,SMV1494-240,SKY85712-21,SKYFR-000848,SKY16406-381LF,SMV1470-004LF,SKY13320-374LF,APD0520-210,SMP1320 SERIES,SKY77731,SMV1493-203,SKY77733,SKY77736,SKY13298-360LF,SKY77735,SKY13405-490LF,SKY65388-11,SMS7621-005LF,SE2603L,SKY77737,DMF2828-222,SKY13489-001,SMV1234-011LF,SKY66111-11,MAFR-000569-000001,SKYFR-000855,SMP1302-087LF,SMV1493-210,SKY65370-11,SKY12347-362LF,DMJ2825-000,SKY77562,SMP1307-027LF,SMV1235-079LF,SMV1275-079LF,APD1510-219,SE2577L,SKY13385-460LF,SMV1405-203,MAFR-000583-000001,SMP1320-040LF,AAT2608A,SKY65713-11,SKY85203-11,DMF3942-000,AAT3183,TT6P4-2158P2-1422,MAFR-000630-000001,SKY77558,SC99906068,DME2829-222,SE2576L,DMF2182-253,SMV1405-210,SMV1705-040LF,SKY77559,SKY13392-359LF,SKY65369-11,SKY77754-11,SMV1405-219,SKY73208-11,SMVA1470-004LF,AAT4285,SMV1253-004LF,DMJ3947-000,AAT3194,DME2957-220,SMV2202-040LF,SKY12210-478LF,CDB7620-000,DME2829-252,DMJ2825-220,DMF2182-000,SMV1270-079LF,SKY77549,DMJ2768-255,MAFR-000668-000001,TT2P3-P,AAT4292,SKY85706-11,APD0805-203,SMV1493-240,TT4P2-0915P2-2620,TT6P3-2140P2-6011,SKY12232-21,CDB7619-000,DMJ2825-230,SKY77771,DME2829-000,SKY77773,SKY13306-313LF,SKY13568-11,DMJ2768-000,APD1510-203,SE5516A,APD1510-210,TT3P4-0895.5P2-3926,DME2957-000,TT4P4-1880P0-6216,DMF2182-223,SKY65404-31,DMJ2839-221,SMV1405-240,SMV1405-000,SMP1302-099

选型指南 - SKYWORKS - 11/15 PDF 英文下载

二极管主要用途有哪些

1、整流二极管：利用二极管单向导电性，可以把方向交替变化的交流电变换成单一方向的脉动直流电。 2、作为开关元件：二极管在正向电压作用下电阻很小，处于导通状态，相当于一只接通的开关；在反向电压作用下，电阻很大，处于截止状态，如同一只断开的开关。利用二极管的开关特性，可以组成各种逻辑电路。 3、作为限幅元件：二极管正向导通后，它的正向压降基本保持不变（硅管为0.7V，锗管为0.3V）。利用这一特性，在电路中作为限幅元件，可以把信号幅度限制在一定范围内。 4、继流二极管：在开关电源的电感中和继电器等感性负载中起继流作用。 5、检波二极管：在收音机中起检波作用。 6、变容二极管：使用于电视机的高频头中。

技术问答发布时间 : 2018-11-20