无(wu)(wu)法(fa)兰双引线(xian)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)也(ye)叫贴片(pian)(pian)双引线(xian)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)是(shi)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中常(chang)用(yong)的(de)(de)被动(dong)元件之一，它(ta)有平(ping)衡电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)的(de)(de)作(zuo)(zuo)用(yong)。它(ta)通(tong)过调整电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中的(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值，使得电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中的(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流或(huo)(huo)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)压达到平(ping)衡状态(tai)，从而(er)实(shi)现电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)的(de)(de)稳(wen)定(ding)工作(zuo)(zuo)。它(ta)在(zai)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子设备和(he)通(tong)信(xin)系统中起着重要的(de)(de)作(zuo)(zuo)用(yong)。无(wu)(wu)法(fa)兰安(an)装(zhuang)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)是(shi)一种没(mei)有附(fu)加法(fa)兰的(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)，它(ta)通(tong)常(chang)通(tong)过焊接(jie)(jie)或(huo)(huo)贴片(pian)(pian)等方式(shi)直(zhi)接(jie)(jie)安(an)装(zhuang)在(zai)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)板(ban)(ban)上。与具有法(fa)兰的(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)相比，它(ta)不需要特殊的(de)(de)固定(ding)和(he)散热结构。这种电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)不带有额(e)外的(de)(de)法(fa)兰或(huo)(huo)散热片(pian)(pian)，而(er)是(shi)通(tong)过焊接(jie)(jie)、贴片(pian)(pian)或(huo)(huo)印刷电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)板(ban)(ban)表面贴装(zhuang)（SMD）等方式(shi)直(zhi)接(jie)(jie)安(an)装(zhuang)在(zai)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)板(ban)(ban)上。由于无(wu)(wu)需法(fa)兰，通(tong)常(chang)尺寸较小(xiao)，便于在(zai)紧凑的(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)板(ban)(ban)上安(an)装(zhuang)，可(ke)以(yi)实(shi)现高(gao)集成度(du)的(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)设计。无(wu)(wu)论是(shi)低(di)频信(xin)号还是(shi)高(gao)频信(xin)号，衰减芯片(pian)(pian)都能(neng)够(gou)提供稳(wen)定(ding)的(de)(de)衰减效果。福(fu)建法(fa)兰式(shi)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)终端批发厂家

电阻(zu)芯(xin)片(pian)的(de)(de)(de)(de)发(fa)(fa)(fa)(fa)(fa)现(xian)(xian)可以(yi)追溯到(dao)1833年，英国科学家(jia)迈克尔·法拉第(di)(MichaelFaraday)在(zai)(zai)(zai)测(ce)试(shi)硫化银(Ag2S)的(de)(de)(de)(de)特(te)性(xing)(xing)(xing)时，发(fa)(fa)(fa)(fa)(fa)现(xian)(xian)它的(de)(de)(de)(de)电阻(zu)随着温度的(de)(de)(de)(de)上升而降(jiang)低。这(zhei)是人类(lei)一次发(fa)(fa)(fa)(fa)(fa)现(xian)(xian)具有(you)电阻(zu)特(te)性(xing)(xing)(xing)的(de)(de)(de)(de)物质，也就(jiu)是半导(dao)(dao)体(ti)现(xian)(xian)象的(de)(de)(de)(de)发(fa)(fa)(fa)(fa)(fa)现(xian)(xian)。随后(hou)，在(zai)(zai)(zai)1839年，法国科学家(jia)埃德蒙·贝克雷尔(EdmondBecquerel)发(fa)(fa)(fa)(fa)(fa)现(xian)(xian)半导(dao)(dao)体(ti)和(he)电解质接(jie)触形成的(de)(de)(de)(de)结，在(zai)(zai)(zai)光(guang)(guang)照下会(hui)产生一个电压，这(zhei)就(jiu)是后(hou)来人们(men)熟知的(de)(de)(de)(de)光(guang)(guang)生伏(fu)特(te)反(fan)应，简(jian)称光(guang)(guang)伏(fu)效应。这(zhei)是人类(lei)发(fa)(fa)(fa)(fa)(fa)现(xian)(xian)的(de)(de)(de)(de)半导(dao)(dao)体(ti)的(de)(de)(de)(de)第(di)二(er)个特(te)征(zheng)。在(zai)(zai)(zai)后(hou)来的(de)(de)(de)(de)研究中(zhong)，人们(men)还发(fa)(fa)(fa)(fa)(fa)现(xian)(xian)了(le)半导(dao)(dao)体(ti)的(de)(de)(de)(de)其(qi)他特(te)性(xing)(xing)(xing)，如光(guang)(guang)电导(dao)(dao)效应和(he)整流效应。这(zhei)些(xie)特(te)性(xing)(xing)(xing)的(de)(de)(de)(de)发(fa)(fa)(fa)(fa)(fa)现(xian)(xian)为(wei)后(hou)来的(de)(de)(de)(de)半导(dao)(dao)体(ti)研究和(he)应用(yong)奠(dian)定了(le)基础。四川悬置微带衰(shuai)(shuai)减芯(xin)片(pian)批发(fa)(fa)(fa)(fa)(fa)厂家(jia)如何(he)利用(yong)电阻(zu)芯(xin)片(pian)实现(xian)(xian)信号衰(shuai)(shuai)减和(he)阻(zu)抗匹(pi)配？

微(wei)波(bo)(bo)(bo)衰(shuai)减(jian)(jian)(jian)片的(de)(de)衰(shuai)减(jian)(jian)(jian)原理是基(ji)于磁(ci)(ci)(ci)性(xing)材(cai)料(liao)对电(dian)磁(ci)(ci)(ci)波(bo)(bo)(bo)的(de)(de)吸收和散(san)射作(zuo)用(yong)。在(zai)铁氧体等(deng)磁(ci)(ci)(ci)性(xing)材(cai)料(liao)中，电(dian)磁(ci)(ci)(ci)波(bo)(bo)(bo)会在(zai)材(cai)料(liao)内部产(chan)(chan)生(sheng)磁(ci)(ci)(ci)致伸缩效应(ying)和自然共(gong)振，导致电(dian)磁(ci)(ci)(ci)波(bo)(bo)(bo)能(neng)(neng)量被(bei)大量吸收。同(tong)时，磁(ci)(ci)(ci)性(xing)材(cai)料(liao)中的(de)(de)电(dian)子在(zai)电(dian)磁(ci)(ci)(ci)场的(de)(de)作(zuo)用(yong)下会受到(dao)(dao)洛(luo)伦兹力(li)，产(chan)(chan)生(sheng)电(dian)流(liu)，这个电(dian)流(liu)又(you)会产(chan)(chan)生(sheng)新的(de)(de)磁(ci)(ci)(ci)场，进一步增强对电(dian)磁(ci)(ci)(ci)波(bo)(bo)(bo)的(de)(de)吸收。因此(ci)，微(wei)波(bo)(bo)(bo)衰(shuai)减(jian)(jian)(jian)片可以(yi)有(you)(you)(you)效地衰(shuai)减(jian)(jian)(jian)电(dian)磁(ci)(ci)(ci)波(bo)(bo)(bo)信号。根(gen)据应(ying)用(yong)需求，微(wei)波(bo)(bo)(bo)衰(shuai)减(jian)(jian)(jian)片有(you)(you)(you)不同(tong)的(de)(de)规格(ge)和性(xing)能(neng)(neng)参数。例如，频率范围(wei)从几(ji)(ji)兆赫(he)(he)兹到(dao)(dao)几(ji)(ji)百吉赫(he)(he)兹，衰(shuai)减(jian)(jian)(jian)量从几(ji)(ji)分贝(bei)到(dao)(dao)几(ji)(ji)十分贝(bei)，带宽从几(ji)(ji)兆赫(he)(he)兹到(dao)(dao)几(ji)(ji)十吉赫(he)(he)兹等(deng)。微(wei)波(bo)(bo)(bo)衰(shuai)减(jian)(jian)(jian)片还(hai)具有(you)(you)(you)良好的(de)(de)温(wen)度稳定性(xing)和机械(xie)强度，可以(yi)在(zai)恶劣的(de)(de)环(huan)境条件(jian)下工作(zuo)。

套(tao)筒(tong)式衰(shuai)减芯片，即(ji)由一种具有特定衰(shuai)减值的(de)旋(xuan)置微带衰(shuai)减芯片插入(ru)特定尺(chi)寸(cun)的(de)金属圆(yuan)管（圆(yuan)管一般用(yong)铝材料加(jia)工而成，需(xu)(xu)进(jin)行导电氧化，也可(ke)(ke)根据(ju)需(xu)(xu)要镀金或银）。根据(ju)不同(tong)(tong)(tong)的(de)频率(lv)和功率(lv)需(xu)(xu)求，选择相(xiang)应的(de)尺(chi)寸(cun)。给其(qi)(qi)加(jia)上适合尺(chi)寸(cun)的(de)散(san)热器(qi)再通过连(lian)接器(qi)组装成需(xu)(xu)要的(de)同(tong)(tong)(tong)轴衰(shuai)减器(qi)。四川省(sheng)天亚通科技(ji)有限公司提供(gong)并(bing)销售(shou)的(de)套(tao)筒(tong)式衰(shuai)减芯片其(qi)(qi)功率(lv)可(ke)(ke)从2W至50W，频率(lv)包括常(chang)用(yong)的(de)3G、6G、8G、12.4G、18G。用(yong)户可(ke)(ke)根据(ju)自己需(xu)(xu)求进(jin)行选择，也可(ke)(ke)根据(ju)客户要求提供(gong)定制服务。不同(tong)(tong)(tong)欧姆(mu)值的(de)电阻在(zai)电路中具有不同(tong)(tong)(tong)的(de)作(zuo)用(yong)。

一种常(chang)见的(de)分(fen)(fen)(fen)类方(fang)式是(shi)根据(ju)使用功(gong)能(neng)，将(jiang)(jiang)(jiang)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)分(fen)(fen)(fen)为(wei)(wei)处(chu)理(li)器(qi)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)、存储(chu)器(qi)、传(chuan)感器(qi)、电(dian)(dian)源(yuan)管(guan)理(li)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)、通(tong)(tong)信芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)和(he)接口(kou)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)等(deng)。其(qi)中，处(chu)理(li)器(qi)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)主要(yao)(yao)在系(xi)(xi)统(tong)中承(cheng)担(dan)(dan)具体计算、控制任务，例如(ru)MCU、CPU、GPU、NPU等(deng);存储(chu)器(qi)主要(yao)(yao)在系(xi)(xi)统(tong)中承(cheng)担(dan)(dan)对数(shu)据(ju)的(de)存储(chu)，例如(ru)DRAM、SRAM、Flash等(deng);传(chuan)感器(qi)主要(yao)(yao)在系(xi)(xi)统(tong)中承(cheng)担(dan)(dan)信息(xi)的(de)采集、呈(cheng)现与交互，例如(ru)一般意义上的(de)传(chuan)感器(qi)、输入(ru)输出设备、一部分(fen)(fen)(fen)的(de)信号处(chu)理(li)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)等(deng);通(tong)(tong)信芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)主要(yao)(yao)在系(xi)(xi)统(tong)中承(cheng)担(dan)(dan)通(tong)(tong)讯功(gong)能(neng)，例如(ru)以(yi)太(tai)网(wang)类芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)、交换类芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)、广域(yu)(yu)与局域(yu)(yu)网(wang)、点对点与自组(zu)网(wang)类芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)等(deng);接口(kou)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)用于(yu)连接不同(tong)设备或组(zu)件之间的(de)接口(kou)，例如(ru)USB接口(kou)、HDMI接口(kou)等(deng);电(dian)(dian)源(yuan)管(guan)理(li)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)用于(yu)能(neng)源(yuan)供给(ji)，例如(ru)DC-AC、LDO等(deng)。另外，还(hai)可以(yi)根据(ju)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)的(de)制造工(gong)艺、设计方(fang)法、应用领(ling)域(yu)(yu)等(deng)方(fang)面进行分(fen)(fen)(fen)类。例如(ru)，按照(zhao)制造工(gong)艺，可以(yi)将(jiang)(jiang)(jiang)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)分(fen)(fen)(fen)为(wei)(wei)集成电(dian)(dian)路(lu)(lu)、混合电(dian)(dian)路(lu)(lu)、薄(bo)膜电(dian)(dian)路(lu)(lu)等(deng);按照(zhao)设计方(fang)法，可以(yi)将(jiang)(jiang)(jiang)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)分(fen)(fen)(fen)为(wei)(wei)数(shu)字电(dian)(dian)路(lu)(lu)、模拟电(dian)(dian)路(lu)(lu)等(deng);按照(zhao)应用领(ling)域(yu)(yu)，可以(yi)将(jiang)(jiang)(jiang)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)分(fen)(fen)(fen)为(wei)(wei)通(tong)(tong)信芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)、医疗芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)、工(gong)业(ye)芯(xin)(xin)(xin)片(pian)(pian)(pian)(pian)等(deng)。检(jian)查光路(lu)(lu)各调(diao)整光轴时，一定(ding)要(yao)(yao)做好相(xiang)应的(de)防(fang)护(hu)。法兰(lan)式电(dian)(dian)阻(zu)终端品牌厂家

T型衰减(jian)片(pian)可以(yi)用于信(xin)号的衰减(jian)、平衡和非平衡电(dian)路的转换以(yi)及功率分配(pei)等。福建法兰式电(dian)阻(zu)终(zhong)端批发(fa)厂家

6-3旋(xuan)置(zhi)微带(dai)(dai)衰(shuai)(shuai)减(jian)(jian)(jian)片采用(yong)微带(dai)(dai)线(xian)结(jie)构，具(ju)有高精(jing)度、高稳定(ding)性(xing)、易于(yu)集成等特点。这种衰(shuai)(shuai)减(jian)(jian)(jian)片通常由薄(bo)膜材料制(zhi)(zhi)成，其(qi)(qi)结(jie)构包括一段微带(dai)(dai)线(xian)和(he)(he)两(liang)个(ge)(ge)电阻(zu)器(qi)，其(qi)(qi)中(zhong)一个(ge)(ge)电阻(zu)器(qi)位于(yu)微带(dai)(dai)线(xian)的(de)起(qi)点，另一个(ge)(ge)位于(yu)终(zhong)点。6-3旋(xuan)置(zhi)微带(dai)(dai)衰(shuai)(shuai)减(jian)(jian)(jian)片的(de)计算公式可(ke)以(yi)(yi)根据系(xi)统阻(zu)抗(kang)和(he)(he)衰(shuai)(shuai)减(jian)(jian)(jian)量来计算出两(liang)个(ge)(ge)电阻(zu)器(qi)的(de)阻(zu)值和(he)(he)微带(dai)(dai)线(xian)的(de)长度。在制(zhi)(zhi)造(zao)过程(cheng)中(zhong)，需(xu)要(yao)(yao)精(jing)确控制(zhi)(zhi)薄(bo)膜材料的(de)厚度、均匀性(xing)和(he)(he)稳定(ding)性(xing)等参数(shu)，以(yi)(yi)保(bao)证(zheng)衰(shuai)(shuai)减(jian)(jian)(jian)片的(de)性(xing)能和(he)(he)质量。需(xu)要(yao)(yao)注意的(de)是，6-3旋(xuan)置(zhi)微带(dai)(dai)衰(shuai)(shuai)减(jian)(jian)(jian)片的(de)衰(shuai)(shuai)减(jian)(jian)(jian)量是固定(ding)的(de)，因此(ci)如果需(xu)要(yao)(yao)不同的(de)衰(shuai)(shuai)减(jian)(jian)(jian)量，需(xu)要(yao)(yao)选(xuan)择不同的(de)6-3旋(xuan)置(zhi)微带(dai)(dai)衰(shuai)(shuai)减(jian)(jian)(jian)片或者进行外部调整。可(ke)以(yi)(yi)用(yong)于(yu)信号的(de)衰(shuai)(shuai)减(jian)(jian)(jian)、平(ping)衡(heng)(heng)和(he)(he)非平(ping)衡(heng)(heng)电路(lu)的(de)转(zhuan)换以(yi)(yi)及功(gong)率分配等。福建法兰式电阻(zu)终(zhong)端(duan)批发厂(chang)家(jia)

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