86-0755-27838351
康華爾電子成立至今已有20多年,是國內(nèi)數(shù)一數(shù)二的晶振廠家0755-27838351,專業(yè)研發(fā)生產(chǎn)銷售石英晶振,32.768K晶振,石英晶體諧振器,貼片晶振,SAW濾波器等.采用無鉛環(huán)保材料生產(chǎn),具有精度穩(wěn)定,小體積,重量輕等特點.國產(chǎn)晶振就選康華爾電子,質(zhì)量好,精度高,價格優(yōu)勢.
康華爾電子多年來在競爭激烈的市場中,以技術占領市場,以質(zhì)量贏得客戶,是國內(nèi)口碑極高的晶振供應商.并且憑借自身的努力代理臺灣進口晶振多個品牌,TXC晶振,鴻星晶振,加高晶振,亞陶晶振等.康華爾電子所提供的臺產(chǎn)晶振,均符合德國ROHS環(huán)保指令,具有高質(zhì)量,高可靠使用特性,咨詢選購熱線0755-27838351.
日本進口晶振在國內(nèi)口碑一流,高端智能產(chǎn)品使用晶振大都會選擇日產(chǎn)晶振作為首選.康華爾電子憑借自身的努力同時代理KDS晶振,愛普生晶振,精工晶體,京瓷晶振等品牌.所代理石英晶振,石英晶體振蕩器,貼片晶體均符合歐盟ROHS環(huán)保要求,具有高精度,高品質(zhì),低插損,耐高溫等特點.
康華爾電子是國內(nèi)優(yōu)秀的歐美進口晶振供貨商0755-27838351,多年來憑借自身的努力,獲得CTS晶振,FOX晶振,Sitime晶振,瑞康晶振等代理權限.所代理進口晶振,歐美晶振均符合歐盟ROHS環(huán)保指令,并且獲得ISO國際質(zhì)量管理體系認證.市場常用進口晶振封裝型號康華爾電子均有備貨,可免費提供現(xiàn)貨樣品以及晶振技術解決方案.
32.768K是晶振頻率中最容易讓人記住的數(shù)字,32.768K晶振素來有時鐘晶振的稱謂,只要跟數(shù)字顯示以及時間相關的產(chǎn)品都少不了一款32.768K晶振.根據(jù)不同的產(chǎn)品需求主要分為圓柱晶振和32.768K貼片晶振.常見封裝有2x6,3x8,7.0x1.5,3.2x1.5,2.0x1.2等體積.康華爾電子提供各種32.768K晶振,音叉表晶,價格優(yōu)質(zhì),咨詢熱線0755-27838351.
有源晶振是一款自身帶有電源電壓功能的石英晶體振蕩器,并且有多種電壓供選擇,比如有1.8V,2.5V,3.3V,3.8V,5V等高速自動安裝和高溫回流焊設計,Optionable待機輸出三態(tài)輸出功能,電源電壓范圍：1.8V~5 V,高穩(wěn)定性,低抖動,低功耗,主要應用領域:無線通訊,高端智能手機,平板筆記本W(wǎng)LAN,藍牙,數(shù)碼相機,DSL和其他IT產(chǎn)品的晶振應用,三態(tài)功能,PC和LCDM等高端數(shù)碼領域,符合RoHS/無鉛.
石英晶體振蕩器電路應用筆記
IC內(nèi)部有一個反相放大器(相移約為180°)形成部分振蕩器電路。外部電路由石英晶體、Cx1、Cx2和Rv組成ca的另一個相移180°，滿足360(或0)的反饋要求使電路以石英晶體給出的頻率振蕩
Rout，Cout:振蕩器IC的輸出電阻/輸出電容Rin，Cin:石英晶體振蕩器IC的輸入電阻/-電容(起始值CMOS: 1M / 3pF) 這些值應在制造商的IC數(shù)據(jù)手冊中說明，但很少具體說明盡管它們對電路設計很重要。Rout可以通過上的電壓降來計算已知的負載電阻器
石英晶體的fL標稱頻率石英晶體的R1 ESR(通常指定為上限) 石英晶體的C0靜態(tài)電容(通常規(guī)定為上限)石英晶體的C1動態(tài)(運動)電容(很少指定)連接的CH1、CH2電容(約。0,8pF)，可以忽略不計，因為包括在C0石英晶體的CL標稱負載電容石英晶體的L1動態(tài)電感(很少指定)這些值在石英晶體制造商的數(shù)據(jù)表中規(guī)定。確切的數(shù)值可以通過用網(wǎng)絡分析儀分析一批石英晶體得到.
| Manufacturer Part Number原廠編碼 | Manufacturer廠家 | Series型號 | Type 系列 | Frequency | Frequency Stability頻率穩(wěn)定度 | Package / Case包裝/封裝 |
| FOXSDLF/120-20 | Fox Electronics | HC49SDLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
| FOXSDLF/120-20 | Fox Electronics | HC49SDLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
| FOXSDLF/120-20 | Fox Electronics | HC49SDLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
| FOXSDLF/0368-20 | Fox Electronics | HC49SDLF | MHz Crystal | 3.6864MHz | ±50ppm | HC49/US |
| FOXSDLF/0368-20 | Fox Electronics | HC49SDLF | MHz Crystal | 3.6864MHz | ±50ppm | HC49/US |
| FOXSDLF/0368-20 | Fox Electronics | HC49SDLF | MHz Crystal | 3.6864MHz | ±50ppm | HC49/US |
| FOXSDLF/115-20 | Fox Electronics | HC49SDLF | MHz Crystal | 11.0592MHz | ±50ppm | HC49/US |
| FOXSDLF/115-20 | Fox Electronics | HC49SDLF | MHz Crystal | 11.0592MHz | ±50ppm | HC49/US |
| FOXSDLF/115-20 | Fox Electronics | HC49SDLF | MHz Crystal | 11.0592MHz | ±50ppm | HC49/US |
| FX135A-327 | Fox Electronics | FX135A | kHz Crystal (Tuning Fork) | 32.768kHz | - | 2-SMD, No Lead |
| FX135A-327 | Fox Electronics | FX135A | kHz Crystal (Tuning Fork) | 32.768kHz | - | 2-SMD, No Lead |
| FX135A-327 | Fox Electronics | FX135A | kHz Crystal (Tuning Fork) | 32.768kHz | - | 2-SMD, No Lead |
| FSRLF327 | Fox Electronics | FSRLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 5.50mm pitch |
| FSRLF327 | Fox Electronics | FSRLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 5.50mm pitch |
| FSRLF327 | Fox Electronics | FSRLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 5.50mm pitch |
| FSXLF327 | Fox Electronics | FSXLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SMD, Flat Lead, 3 Leads |
| FSXLF327 | Fox Electronics | FSXLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SMD, Flat Lead, 3 Leads |
| FSXLF327 | Fox Electronics | FSXLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SMD, Flat Lead, 3 Leads |
| FOXSLF/080-20 | Fox Electronics | HC49SLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FQ5032B-12.000 | Fox Electronics | C5BQ | MHz Crystal | 12MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-12.000 | Fox Electronics | C5BQ | MHz Crystal | 12MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-12.000 | Fox Electronics | C5BQ | MHz Crystal | 12MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-25.000 | Fox Electronics | C5BQ | MHz Crystal | 25MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-25.000 | Fox Electronics | C5BQ | MHz Crystal | 25MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-25.000 | Fox Electronics | C5BQ | MHz Crystal | 25MHz | ±30ppm | 4-SMD, No Lead |
| FSMLF327 | Fox Electronics | FSMLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 2.29mm pitch |
| FSMLF327 | Fox Electronics | FSMLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 2.29mm pitch |
| FSMLF327 | Fox Electronics | FSMLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 2.29mm pitch |
| FQ7050B-8.000 | Fox Electronics | C7BQ | MHz Crystal | 8MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-8.000 | Fox Electronics | C7BQ | MHz Crystal | 8MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-8.000 | Fox Electronics | C7BQ | MHz Crystal | 8MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-7.3728 | Fox Electronics | C7BQ | MHz Crystal | 7.3728MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-7.3728 | Fox Electronics | C7BQ | MHz Crystal | 7.3728MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-7.3728 | Fox Electronics | C7BQ | MHz Crystal | 7.3728MHz | ±30ppm | 4-SMD, No Lead |
| FQ1045A-6.000 | Fox Electronics | FQ1045A | MHz Crystal | 6MHz | ±30ppm | 2-SMD, No Lead |
| FQ1045A-6.000 | Fox Electronics | FQ1045A | MHz Crystal | 6MHz | ±30ppm | 2-SMD, No Lead |
| FQ1045A-6.000 | Fox Electronics | FQ1045A | MHz Crystal | 6MHz | ±30ppm | 2-SMD, No Lead |
| FQ1045A-4.000 | Fox Electronics | FQ1045A | MHz Crystal | 4MHz | ±30ppm | 2-SMD, No Lead |
| FQ1045A-4.000 | Fox Electronics | FQ1045A | MHz Crystal | 4MHz | ±30ppm | 2-SMD, No Lead |
| FQ1045A-4.000 | Fox Electronics | FQ1045A | MHz Crystal | 4MHz | ±30ppm | 2-SMD, No Lead |
| FOXLF024S | Fox Electronics | HC49ULF | MHz Crystal | 2.4576MHz | ±50ppm | HC49/U |
| FOXSDLF/160-20 | Fox Electronics | HC49SDLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSDLF/160-20 | Fox Electronics | HC49SDLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSDLF/160-20 | Fox Electronics | HC49SDLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSDLF/200-20 | Fox Electronics | HC49SDLF | MHz Crystal | 20MHz | ±50ppm | HC49/US |
| FOXSDLF/200-20 | Fox Electronics | HC49SDLF | MHz Crystal | 20MHz | ±50ppm | HC49/US |
| FOXSDLF/200-20 | Fox Electronics | HC49SDLF | MHz Crystal | 20MHz | ±50ppm | HC49/US |
| FOXSDLF/080-20 | Fox Electronics | HC49SDLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FOXSDLF/080-20 | Fox Electronics | HC49SDLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FOXSDLF/080-20 | Fox Electronics | HC49SDLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FOXSDLF/250F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 25MHz | ±50ppm | HC49/US |
| FOXSDLF/250F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 25MHz | ±50ppm | HC49/US |
| FOXSDLF/250F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 25MHz | ±50ppm | HC49/US |
| FOXSDLF/147-20 | Fox Electronics | HC49SDLF | MHz Crystal | 14.7456MHz | ±50ppm | HC49/US |
| FOXSDLF/147-20 | Fox Electronics | HC49SDLF | MHz Crystal | 14.7456MHz | ±50ppm | HC49/US |
| FOXSDLF/147-20 | Fox Electronics | HC49SDLF | MHz Crystal | 14.7456MHz | ±50ppm | HC49/US |
| FOXSDLF/240F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 24MHz | ±50ppm | HC49/US |
| FOXSDLF/240F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 24MHz | ±50ppm | HC49/US |
| FOXSDLF/240F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 24MHz | ±50ppm | HC49/US |
| FOXSDLF/080R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FOXSDLF/080R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FOXSDLF/080R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FQ3225B-12.000 | Fox Electronics | FQ3225B | MHz Crystal | 12MHz | ±50ppm | 4-SMD, No Lead |
| FQ3225B-12.000 | Fox Electronics | FQ3225B | MHz Crystal | 12MHz | ±50ppm | 4-SMD, No Lead |
| FQ3225B-12.000 | Fox Electronics | FQ3225B | MHz Crystal | 12MHz | ±50ppm | 4-SMD, No Lead |
| FOXSLF/200-20 | Fox Electronics | HC49SLF | MHz Crystal | 20MHz | ±50ppm | HC49/US |
| FOXSLF/120-20 | Fox Electronics | HC49SLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
IC輸入端的Ca有效電容為IC的Cin、雜散電容*之和PCB(4～6pF)，石英晶體CH2的體電容(0,8pF)，以及分立冷凝器C12。起始值:1，1...1.2倍氯IC輸出端的Cb有效電容為PCB雜散電容*之和(4~6pF)，石英晶體CH1的體電容(~ 0,8pF)和離散冷凝器C11。起始值:2xCaRv串聯(lián)電阻(應始終在布局中提供，即使后來用0歐姆)。設計中的有效串聯(lián)電阻是Rv和Rout之和。*例如*可以通過測量未安裝的PCB來發(fā)現(xiàn)雜散電容。模擬: GEYER提供了Y-QUARTZ應用程序，這是一個工具，除了其他功能之外，還可以模擬優(yōu)化皮爾斯石英晶體振蕩器的特性。通過輸入上面的內(nèi)容 值您可以可視化和改變反饋的振幅和相位特性電路，由石英晶體和周圍元件組成)，用于可靠的振蕩而不超過石英晶體的最大驅(qū)動水平。
| FOXSLF/040 | Fox Electronics | HC49SLF | MHz Crystal | 4MHz | ±50ppm | HC49/US |
| FOXSLF/184-20 | Fox Electronics | HC49SLF | MHz Crystal | 18.432MHz | ±50ppm | HC49/US |
| FOXSLF/036S | Fox Electronics | HC49SLF | MHz Crystal | 3.579545MHz | ±50ppm | HC49/US |
| FOXSLF/221-20 | Fox Electronics | HC49SLF | MHz Crystal | 22.1184MHz | ±50ppm | HC49/US |
| FOXSLF/100-20 | Fox Electronics | HC49SLF | MHz Crystal | 10MHz | ±50ppm | HC49/US |
| FX252BS-16.000 | Fox Electronics | FX252B | MHz Crystal | 16MHz | ±50ppm | 4-SMD, No Lead |
| FX252BS-16.000 | Fox Electronics | FX252B | MHz Crystal | 16MHz | ±50ppm | 4-SMD, No Lead |
| FX252BS-16.000 | Fox Electronics | FX252B | MHz Crystal | 16MHz | ±50ppm | 4-SMD, No Lead |
| FQ5032B-20.000 | Fox Electronics | C5BQ | MHz Crystal | 20MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-20.000 | Fox Electronics | C5BQ | MHz Crystal | 20MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-20.000 | Fox Electronics | C5BQ | MHz Crystal | 20MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-6.000 | Fox Electronics | C7BQ | MHz Crystal | 6MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-6.000 | Fox Electronics | C7BQ | MHz Crystal | 6MHz | ±30ppm | 4-SMD, No Lead |
| FQ7050B-6.000 | Fox Electronics | C7BQ | MHz Crystal | 6MHz | ±30ppm | 4-SMD, No Lead |
| FOXLF100-20 | Fox Electronics | HC49ULF | MHz Crystal | 10MHz | ±50ppm | HC49/U |
| FOXLF200-20 | Fox Electronics | HC49ULF | MHz Crystal | 20MHz | ±50ppm | HC49/U |
| FOXLF080-20 | Fox Electronics | HC49ULF | MHz Crystal | 8MHz | ±50ppm | HC49/U |
| FOXLF115-20 | Fox Electronics | HC49ULF | MHz Crystal | 11.0592MHz | ±50ppm | HC49/U |
| NC38LF-327 | Fox Electronics | NC38LF | kHz Crystal (Tuning Fork) | 32.768kHz | - | Cylindrical Can, Radial |
| FOXLF040 | Fox Electronics | HC49ULF | MHz Crystal | 4MHz | ±50ppm | HC49/U |
| NC26LF-327 | Fox Electronics | NC26LF | kHz Crystal (Tuning Fork) | 32.768kHz | - | Cylindrical Can, Radial |
| FOXLF036S | Fox Electronics | HC49ULF | MHz Crystal | 3.579545MHz | ±50ppm | HC49/U |
| FQ3225B-25.000 | Fox Electronics | FQ3225B | MHz Crystal | 25MHz | ±50ppm | 4-SMD, No Lead |
| FQ3225B-25.000 | Fox Electronics | FQ3225B | MHz Crystal | 25MHz | ±50ppm | 4-SMD, No Lead |
| FQ3225B-25.000 | Fox Electronics | FQ3225B | MHz Crystal | 25MHz | ±50ppm | 4-SMD, No Lead |
| FQ1045A-3.6864 | Fox Electronics | FQ1045A | MHz Crystal | 3.6864MHz | ±30ppm | 2-SMD, No Lead |
| FQ1045A-3.6864 | Fox Electronics | FQ1045A | MHz Crystal | 3.6864MHz | ±30ppm | 2-SMD, No Lead |
| FQ1045A-3.6864 | Fox Electronics | FQ1045A | MHz Crystal | 3.6864MHz | ±30ppm | 2-SMD, No Lead |
| FOXLF018S | Fox Electronics | HC49ULF | MHz Crystal | 1.8432MHz | ±50ppm | HC49/U |
| FOXSDLF/036S | Fox Electronics | HC49SDLF | MHz Crystal | 3.579545MHz | ±50ppm | HC49/US |
| FOXSDLF/036S | Fox Electronics | HC49SDLF | MHz Crystal | 3.579545MHz | ±50ppm | HC49/US |
| FOXSDLF/036S | Fox Electronics | HC49SDLF | MHz Crystal | 3.579545MHz | ±50ppm | HC49/US |
| FOXSDLF/120R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
| FOXSDLF/120R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
| FOXSDLF/120R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
| FSRLF327-6 | Fox Electronics | FSRLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 5.50mm pitch |
| FSRLF327-6 | Fox Electronics | FSRLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 5.50mm pitch |
| FSRLF327-6 | Fox Electronics | FSRLF | kHz Crystal (Tuning Fork) | 32.768kHz | - | 4-SOJ, 5.50mm pitch |
| FOXLF115 | Fox Electronics | HC49ULF | MHz Crystal | 11.0592MHz | ±50ppm | HC49/U |
| FQ3225B-24.000 | Fox Electronics | FQ3225B | MHz Crystal | 24MHz | ±50ppm | 4-SMD, No Lead |
| FQ3225B-24.000 | Fox Electronics | FQ3225B | MHz Crystal | 24MHz | ±50ppm | 4-SMD, No Lead |
| FQ3225B-24.000 | Fox Electronics | FQ3225B | MHz Crystal | 24MHz | ±50ppm | 4-SMD, No Lead |
| FOXLF0368S | Fox Electronics | HC49ULF | MHz Crystal | 3.6864MHz | ±50ppm | HC49/U |
| FOXSDLF/184-20 | Fox Electronics | HC49SDLF | MHz Crystal | 18.432MHz | ±50ppm | HC49/US |
| FOXSDLF/184-20 | Fox Electronics | HC49SDLF | MHz Crystal | 18.432MHz | ±50ppm | HC49/US |
| FOXSDLF/184-20 | Fox Electronics | HC49SDLF | MHz Crystal | 18.432MHz | ±50ppm | HC49/US |
| FOXSDLF/060-20 | Fox Electronics | HC49SDLF | MHz Crystal | 6MHz | ±50ppm | HC49/US |
| FOXSDLF/060-20 | Fox Electronics | HC49SDLF | MHz Crystal | 6MHz | ±50ppm | HC49/US |
| FOXSDLF/060-20 | Fox Electronics | HC49SDLF | MHz Crystal | 6MHz | ±50ppm | HC49/US |
| FOXSDLF/040 | Fox Electronics | HC49SDLF | MHz Crystal | 4MHz | ±50ppm | HC49/US |
| FOXSDLF/040 | Fox Electronics | HC49SDLF | MHz Crystal | 4MHz | ±50ppm | HC49/US |
| FOXSDLF/040 | Fox Electronics | HC49SDLF | MHz Crystal | 4MHz | ±50ppm | HC49/US |
| FOXSDLF/221-20 | Fox Electronics | HC49SDLF | MHz Crystal | 22.1184MHz | ±50ppm | HC49/US |
| FOXSDLF/221-20 | Fox Electronics | HC49SDLF | MHz Crystal | 22.1184MHz | ±50ppm | HC49/US |
| FOXSDLF/221-20 | Fox Electronics | HC49SDLF | MHz Crystal | 22.1184MHz | ±50ppm | HC49/US |
| FOXSDLF/073-20 | Fox Electronics | HC49SDLF | MHz Crystal | 7.3728MHz | ±50ppm | HC49/US |
| FOXSDLF/073-20 | Fox Electronics | HC49SDLF | MHz Crystal | 7.3728MHz | ±50ppm | HC49/US |
| FOXSDLF/073-20 | Fox Electronics | HC49SDLF | MHz Crystal | 7.3728MHz | ±50ppm | HC49/US |
| FOXSDLF/049-20 | Fox Electronics | HC49SDLF | MHz Crystal | 4.9152MHz | ±50ppm | HC49/US |
| FOXSDLF/049-20 | Fox Electronics | HC49SDLF | MHz Crystal | 4.9152MHz | ±50ppm | HC49/US |
實施/布局: 布局需要特別注意:低電容短走線、對稱布局， 沒有過孔，附近沒有“熱”跡線。如果無法避免過孔，則應鋪設過孔 對稱地。 驗證: 必須在原型PCB上驗證石英晶體振蕩器的正確功能， 因為寄生電容和電阻事先是未知的 必須根據(jù)石英的預期功能調(diào)整電阻器和電容器晶體振蕩器。 必須使用有源低電容探頭(< =2pF)進行測量，因為電容>10pF的普通探頭會完全改變設置并呈現(xiàn)所有測量沒用。如果沒有低電容探頭，可以使用小陶瓷電容器(1~2pF)可以暫時與探頭串聯(lián)使用測量。然而，給定頻率下分頻器比率的重新校準不可避免.
| FOXSDLF/049-20 | Fox Electronics | HC49SDLF | MHz Crystal | 4.9152MHz | ±50ppm | HC49/US |
| FOXSDLF/250FR-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 25MHz | ±50ppm | HC49/US |
| FOXSDLF/250FR-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 25MHz | ±50ppm | HC49/US |
| FOXSDLF/250FR-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 25MHz | ±50ppm | HC49/US |
| FX425B-12.000 | Fox Electronics | FX425B | MHz Crystal | 12MHz | ±50ppm | 4-SMD, No Lead |
| FX425B-12.000 | Fox Electronics | FX425B | MHz Crystal | 12MHz | ±50ppm | 4-SMD, No Lead |
| FX425B-12.000 | Fox Electronics | FX425B | MHz Crystal | 12MHz | ±50ppm | 4-SMD, No Lead |
| FQ5032B-18.432 | Fox Electronics | C5BQ | MHz Crystal | 18.432MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-18.432 | Fox Electronics | C5BQ | MHz Crystal | 18.432MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-18.432 | Fox Electronics | C5BQ | MHz Crystal | 18.432MHz | ±30ppm | 4-SMD, No Lead |
| FX252BS-24.000 | Fox Electronics | FX252B | MHz Crystal | 24MHz | ±50ppm | 4-SMD, No Lead |
| FX252BS-24.000 | Fox Electronics | FX252B | MHz Crystal | 24MHz | ±50ppm | 4-SMD, No Lead |
| FX252BS-24.000 | Fox Electronics | FX252B | MHz Crystal | 24MHz | ±50ppm | 4-SMD, No Lead |
| FQ7050BR-7.3728 | Fox Electronics | C7BQ | MHz Crystal | 7.3728MHz | ±50ppm | 4-SMD, No Lead |
| FQ7050BR-7.3728 | Fox Electronics | C7BQ | MHz Crystal | 7.3728MHz | ±50ppm | 4-SMD, No Lead |
| FQ7050BR-7.3728 | Fox Electronics | C7BQ | MHz Crystal | 7.3728MHz | ±50ppm | 4-SMD, No Lead |
| FX122-327 | Fox Electronics | FX122 | kHz Crystal (Tuning Fork) | 32.768kHz | - | 2-SMD, No Lead |
| FX122-327 | Fox Electronics | FX122 | kHz Crystal (Tuning Fork) | 32.768kHz | - | 2-SMD, No Lead |
| FX122-327 | Fox Electronics | FX122 | kHz Crystal (Tuning Fork) | 32.768kHz | - | 2-SMD, No Lead |
| FOXSLF/115-20 | Fox Electronics | HC49SLF | MHz Crystal | 11.0592MHz | ±50ppm | HC49/US |
| FOXSLF/250F-20 | Fox Electronics | HC49SLF | MHz Crystal | 25MHz | ±50ppm | HC49/US |
| FOXSLF/147-20 | Fox Electronics | HC49SLF | MHz Crystal | 14.7456MHz | ±50ppm | HC49/US |
| FOXSLF/073-20 | Fox Electronics | HC49SLF | MHz Crystal | 7.3728MHz | ±50ppm | HC49/US |
| FOXSLF/160-20 | Fox Electronics | HC49SLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSLF/160 | Fox Electronics | HC49SLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSLF/080 | Fox Electronics | HC49SLF | MHz Crystal | 8MHz | ±50ppm | HC49/US |
| FOXSLF/128-20 | Fox Electronics | HC49SLF | MHz Crystal | 12.288MHz | ±50ppm | HC49/US |
| FOXSLF/245F-20 | Fox Electronics | HC49SLF | MHz Crystal | 24.576MHz | ±50ppm | HC49/US |
| FOXSLF/040A | Fox Electronics | HC49SLF | MHz Crystal | 4MHz | ±50ppm | HC49/US |
| FOXSLF/120 | Fox Electronics | HC49SLF | MHz Crystal | 12MHz | ±50ppm | HC49/US |
| FOXSLF/0368-20 | Fox Electronics | HC49SLF | MHz Crystal | 3.6864MHz | ±50ppm | HC49/US |
| FOXSLF/240F-20 | Fox Electronics | HC49SLF | MHz Crystal | 24MHz | ±50ppm | HC49/US |
| FOXLF250F-20 | Fox Electronics | HC49ULF | MHz Crystal | 25MHz | ±50ppm | HC49/U |
| FOXLF120-20 | Fox Electronics | HC49ULF | MHz Crystal | 12MHz | ±50ppm | HC49/U |
| FOXLF160 | Fox Electronics | HC49ULF | MHz Crystal | 16MHz | ±50ppm | HC49/U |
| FOXLF160-20 | Fox Electronics | HC49ULF | MHz Crystal | 16MHz | ±50ppm | HC49/U |
| FOXLF040A | Fox Electronics | HC49ULF | MHz Crystal | 4MHz | ±50ppm | HC49/U |
| FOXLF0368-20 | Fox Electronics | HC49ULF | MHz Crystal | 3.6864MHz | ±50ppm | HC49/U |
| FOXSLF/143-20 | Fox Electronics | HC49SLF | MHz Crystal | 14.31818MHz | ±50ppm | HC49/US |
| FOXSDLF/143-20 | Fox Electronics | HC49SDLF | MHz Crystal | 14.31818MHz | ±50ppm | HC49/US |
| FOXSDLF/143-20 | Fox Electronics | HC49SDLF | MHz Crystal | 14.31818MHz | ±50ppm | HC49/US |
| FOXSDLF/143-20 | Fox Electronics | HC49SDLF | MHz Crystal | 14.31818MHz | ±50ppm | HC49/US |
| FOXSDLF/245F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 24.576MHz | ±50ppm | HC49/US |
| FOXSDLF/245F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 24.576MHz | ±50ppm | HC49/US |
| FOXSDLF/245F-20 | Fox Electronics | HC49SDLF | MHz Crystal | 24.576MHz | ±50ppm | HC49/US |
| FOXSDLF/041 | Fox Electronics | HC49SDLF | MHz Crystal | 4.194304MHz | ±50ppm | HC49/US |
| FOXSDLF/041 | Fox Electronics | HC49SDLF | MHz Crystal | 4.194304MHz | ±50ppm | HC49/US |
| FOXSDLF/041 | Fox Electronics | HC49SDLF | MHz Crystal | 4.194304MHz | ±50ppm | HC49/US |
| FOXSDLF/100-20 | Fox Electronics | HC49SDLF | MHz Crystal | 10MHz | ±50ppm | HC49/US |
| FOXSDLF/100-20 | Fox Electronics | HC49SDLF | MHz Crystal | 10MHz | ±50ppm | HC49/US |
| FOXSDLF/100-20 | Fox Electronics | HC49SDLF | MHz Crystal | 10MHz | ±50ppm | HC49/US |
| FOXSDLF/160R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSDLF/160R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSDLF/160R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 16MHz | ±50ppm | HC49/US |
| FOXSDLF/200R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 20MHz | ±50ppm | HC49/US |
| FOXSDLF/200R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 20MHz | ±50ppm | HC49/US |
| FOXSDLF/200R-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 20MHz | ±50ppm | HC49/US |
| FOXSDLF/245FR-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 24.576MHz | ±50ppm | HC49/US |
| FOXSDLF/245FR-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 24.576MHz | ±50ppm | HC49/US |
| FOXSDLF/245FR-20/TR | Fox Electronics | HC49SDLF | MHz Crystal | 24.576MHz | ±50ppm | HC49/US |
| FQ5032B-24.576 | Fox Electronics | C5BQ | MHz Crystal | 24.576MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-24.576 | Fox Electronics | C5BQ | MHz Crystal | 24.576MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-24.576 | Fox Electronics | C5BQ | MHz Crystal | 24.576MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-24.000 | Fox Electronics | C5BQ | MHz Crystal | 24MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-24.000 | Fox Electronics | C5BQ | MHz Crystal | 24MHz | ±30ppm | 4-SMD, No Lead |
| FQ5032B-24.000 | Fox Electronics | C5BQ | MHz Crystal | 24MHz | ±30ppm | 4-SMD, No Lead |
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