webData('company_name') webData('company_name')
banner

新聞中心

2025/07/18

SMA同軸連接器耐壓規格與測試|為何耐壓能力如此重要?

SMA同軸連接器耐壓規格與測試|為何耐壓能力如此重要?

 

SMA同軸連接器耐壓規格與測試|為何耐壓能力如此重要?

 

為什麼SMA連接器必須具備良好的電氣耐壓能力?

SMA(SubMiniature version A)同軸連接器因其小型化、高頻特性與良好電氣性能,被廣泛應用於射頻(RF)與微波通訊設備。然而,在高功率或高電壓應用場景下,例如射頻功率放大器、測試儀器與軍用電子設備,連接器的耐壓性能將直接影響系統的安全與穩定。本文將深入說明SMA連接器的耐壓測試方法、性能標準與選型要點,協助工程師做出正確決策。

 

 

一、SMA連接器耐壓測試的核心意義

耐壓測試是為了驗證連接器是否能在高電壓環境下穩定工作,避免發生電氣擊穿或絕緣失效。主要測試項目包括:

  • 擊穿電壓(Breakdown Voltage): 評估SMA連接器在極限高壓下的承受能力。
  • 絕緣電阻(Insulation Resistance): 測試絕緣層在高電壓下的漏電程度。
  • 耐久性模擬測試: 模擬連接器長期運作,評估其穩定性與耐用性。

 

 

二、SMA連接器的標準耐壓規範(符合MIL與IEC規格)

根據 MIL-STD-348B 與 IEC 61169-15 等國際標準,SMA連接器的典型耐壓性能如下:

測試項目 標準參考值
擊穿電壓 ≧ 1000V(峰值)
絕緣電阻 ≧ 5000 MΩ(在500V DC下測試)
建議工作電壓 ≦ 335V RMS

 

這些數據成為提供給工程師在選擇類型與設計上的關鍵依據。

 

 

三、常見的SMA連接器耐壓測試方法

為確保連接器在實際應用中表現良好,以下測試方法常被採用:

  • 高壓直流測試(DC Withstand Test): 施加500V~1000V DC,測試絕緣電阻是否穩定。
  • 交流耐壓測試(AC Hipot Test): 在連接器上施加1kV~2kV AC,觀察是否產生電氣擊穿。
  • 漸進式擊穿測試: 緩慢升高施加電壓,記錄絕緣層發生電弧或失效的電壓臨界點。

 

 

四、影響SMA連接器耐壓表現的因素

不同設計與應用條件會影響連接器的耐壓能力,主要包括:

  • 介電材料選用: 採用PTFE(聚四氟乙烯)等高介電強度材料,有助提升耐壓性能。
  • 導體間隙設計: 保持足夠的中心導體距離可降低電場集中風險。
  • 環境條件影響: 高濕或高溫環境會降低絕緣性能,建議在關鍵應用中選擇具備密封或防護設計的連接器。

 

 

五、SMA連接器的應用場景:耐壓性能應用大解析

高耐壓的SMA連接器在多種RF應用中扮演重要角色:

  • 高功率射頻應用: 如微波發射器、射頻功率放大器。
  • 測試與量測設備: 包括矢量網路分析儀(VNA)等高電壓RF測試系統。
  • 航太與軍用電子裝置: 在極端環境中要求高可靠性與電氣穩定性。

 

 

六、選購高耐壓SMA連接器的實用建議

選擇適合高電壓應用的SMA連接器時,建議優先考慮以下條件:

  • 通過軍規MIL-STD或IEC規範測試
  • 符合所需擊穿電壓與絕緣電阻等級
  • 具備高可靠性製程與穩定的品質控管紀錄
  • 供應商可提供完整測試報告與樣品驗證

 

 

結論:選對SMA連接器,確保RF系統安全穩定

SMA同軸連接器的耐壓性能,是確保射頻系統在高功率或嚴苛環境中穩定運作的關鍵。透過高壓測試與絕緣性能評估,工程師可針對不同應用需求,選擇具備良好擊穿電壓與絕緣電阻的高耐壓SMA連接器,進一步提升設備安全性與訊號品質。

 

🔧需要連接器的選型或進一步討論?歡迎聯絡我們:service@chinnan.com.tw

🛒立即前往選購:SMA連接器

📚延伸閱讀推薦:

 


前往LINE官方帳號

登入會員

評分

已送出
謝謝您的評分
OK

We will use cookies on our website for technical, analytical, and marketing purposes. By continuing to browse this website, you agree to our use of cookies. To learn more, read our Privacy Policy.  

同意

PRIVACY POLICY

LEGAL, TERMS & CONDITIONS

Chin Nan respects the privacy rights and interests of each customer. Chin Nan will observe the principles when processing your personal information fairly and lawfully. We take the protection of personal data very seriously. We want you to know when we are storing your data, what data we are storing and how we are using it.

PERSONAL INFORMATION YOU PROVIDE TO US THROUGH OUR SITE.

We may collect and store personal information that you choose to voluntarily provide to us when you provide it through the Site. The types of personal information may include:

  • Company name, contact name, job title, company website, country, business type, email,telephone number, fax number, address.

  • Other personal information you may include in content you submit on the Site.

COOKIE:

There is a technology called "cookie" which is an element of data that a website can send to your browser which may then store on your system. Some Site pages use cookies so that we can better serve you when you return to our Site. You can set your browser to notify you when you receive a cookie, giving the chance to decide whether to accept it.

We use Track ID (cookies) to collect and store information when you visit our website; the information is saved at Amazon Web Services (AWS) and used to identify your browser or device.

Cookies do not harm your computer and do not contain any viruses.

Cookies help make our website more user-friendly, efficient, and secure.

Cookies are small text files that are stored on your computer and saved by your browser. Using cookies enables us to provide you with certain features and provides us with information regarding website visits.

WEB ANALYSIS WITH GOOGLE ANALYTICS

We use Google Analytics to analyze user activity in order to improve the Website. For example, using Google Analytics Cookies we can look at aggregate patterns like the average number of searches that users perform, what keywords users searched, countries and languages. We can use such analysis to gain insights about how to improve the functionality and experience of the website. You can visit Google Analytics’ Privacy Policy at: https://policies.google.com/technologies/cookies

YOUR INFORMATION COLLECTED FROM OTHER TECHNOLOGIES

Besides Cookies, we use other technologies to improve your user experience and the overall quality of our services by collecting the information below:

[site visitor] visited website (URL)

[site visitor] IP Address

[site visitor] Internet Connection Device Brand, Model and OS

[site visitor] Internet Connection Device Browser, Resolution, Color

[site visitor] GeoIP

[site visitor] ISP

INFORMATION, BLOCKING, DELETION

As permitted by law, you have the right to be provided at any time with information free of charge about any of your personal data that is stored as well as its origin, the recipient and the purpose for which it has been processed. You also have the right to have this data corrected, blocked or deleted. You can contact us at any time using the address given in our legal notice if you have further questions on the topic of personal data.

All the collected information is saved for 24 months on Amazon Web Services (AWS) and regularly deleted every month..

THE PROTECTION OF YOUR PERSONAL DATA

Your personal data is stored on Amazon Web Services (AWS). AWS Announces CISPE Membership and Compliance with First-Ever Code of Conduct for Data Protection in the Cloud.

INFORMATION SECURITY

We use standard security technology SSL or HTTPS standard technology for keeping an internet connection secure and safeguarding any sensitive data that is being sent between two systems, preventing criminals from reading and modifying any information transferred, including potential personal details.

CHANGES TO THIS PRIVACY POLICY

We may update this Privacy Policy to reflect changes to our information practices. If we make any material changes we will notify you by email (sent to the e-mail address specified in your account) or by means of a notice on this website prior to the change becoming effective.