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KEMET CBR04C399B5GAC RF Ceramic Capacitor

The CBR04C399B5GAC is a high-performance, ultra-high Q ceramic SMD RF capacitor with a capacitance of 3.9 pF and a voltage rating of 50 VDC. Designed for RF applications, it features low ESR and a COG dielectric with excellent stability over temperature from -55°C to +125°C. Its compact 0402 size makes it ideal for space-constrained circuits, offering high insulation resistance and minimal aging rate, ensuring long-term reliability in demanding environments. Suitable for use in filters, impedance matching, and tuning networks in wireless devices.

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Source:Newark
Part No:CBR04C399B5GAC
Stock:90
Inv Date:06-05-2026
Price: Unit price: $0.06
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Source:DigiKey
Part No:CBR04C399B5GAC
Stock:1116
Inv Date:06-05-2026
Price: Unit price: $0.02574
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Part No:CBR04C399B5GAC
Stock:24119
Inv Date:06-06-2026
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Part No:CBR04C399B5GAC
Stock:180000
Inv Date:06-05-2026
Price: Unit price: $0.0212
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Part No:CBR04C399B5GAC
Stock:180000
Inv Date:06-05-2026
Price: Unit price: $0.0212
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Part No:CBR04C399B5GAC
Stock:904
Inv Date:06-06-2026
Price: N/A
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KEMET CBR04C399B5GAC RF Ceramic Capacitor Specifications:

  • Capacitance: 3.9 pF
  • Capacitance Tolerance: +/-0.1 pF
  • Voltage DC: 50 VDC
  • Dielectric Withstanding Voltage: 125 VDC
  • Temperature Range: -55°C to +125°C
  • Dielectric: COG
  • Dissipation Factor: 0.209%
  • Insulation Resistance: 10 GOhms
  • Quality Factor: 478
  • Dimensions: 0402 chip size, Length 0.25mm +/-0.05mm, Width 0.5mm +/-0.05mm
  • RoHS compliant: Yes
  • Termination: Tin
  • Packaging: T&R, 180mm plastic tape, Quantity: 10,000

Buy the Buy YAGEO CBR04C399B5GAC Part Number CBR04C399B5GAC Online

Purchase the YAGEO CBR04C399B5GAC ceramic RF capacitor online today and experience superior high-Q performance in compact circuits. This 3.9 pF SMD component supports up to 50 VDC, making it ideal for RF filtering, impedance matching, and tuning networks. Its low ESR, excellent thermal stability from -55°C to +125°C, and robust insulation resistance ensure long-term reliability in demanding environments. With RoHS compliance and easy T&R packaging, it’s perfect for efficient assembly and advanced electronic designs.

Get YAGEO CBR04C399B5GAC today—designed for high-frequency RF applications with ultra high Q and low ESR for reliable performance.

Frequently Asked Questions

Where can I buy KEMET CBR04C399B5GAC?

You can click on the BUY or RFQ button to purchase CBR04C399B5GAC from an authorized KEMET distributor.

How do I troubleshoot issues or seek technical support for part CBR04C399B5GAC?

You can download the CBR04C399B5GAC datasheet or visit the KEMET website for support.

Who is the manufacturer of CBR04C399B5GAC?

KEMET

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