CBR06C309C1GAC Equivalent & Substitute Parts

Part Overview

The CBR06C309C1GAC is a 3 pF ceramic capacitor manufactured by KEMET, rated for 100V operation with C0G/NP0 temperature coefficient characteristics. This surface mount multilayer ceramic capacitor (MLCC) is designed for RF and microwave applications requiring high Q, low loss, and ultra-low ESR performance. The component is currently in active production status with 1135 units available in inventory. Substitute parts are identified when design requirements permit higher voltage ratings, improved tolerance specifications, or enhanced availability while maintaining core electrical and mechanical compatibility.

Substiute Parts

CBR06C309C1GAC

KEMETIn Stock: 1219CBR06C309C1GAC Datasheet

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CBR06C309BAGAC

KEMETIn Stock: 5013CBR06C309BAGAC Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the CBR06C309C1GAC is based on the following criteria:

Mandatory Matching Parameters:

• Capacitance value: 3 pF (exact match required)
• Temperature coefficient: C0G/NP0 (required for RF stability)
• Package code: 0603 (1608 Metric) (required for PCB compatibility)
• Mounting type: Surface Mount MLCC (required for assembly compatibility)
• Operating temperature range: -55°C ~ 125°C minimum (must meet or exceed)

Allowable Variations:

• Voltage rating: May be equal to or greater than 100V
• Tolerance: May be equal to or tighter than ±0.25pF
• Manufacturer: Different manufacturers acceptable if all parameters match

The identified substitute CBR06C309BAGAC meets all mandatory matching criteria while offering an upgraded voltage rating of 250V and improved tolerance of ±0.1pF, providing enhanced design margin and component availability.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (CBR06C309C1GAC): Select this part when the application circuit is designed specifically for 100V operation and the ±0.25pF tolerance specification is acceptable. This part is ROHS3 compliant, REACH unaffected, and carries EAR99 classification. Current inventory of 1135 units supports immediate procurement.

Substitute Part Selection (CBR06C309BAGAC): Select CBR06C309BAGAC when design requirements permit higher voltage operation or when improved component tolerance (±0.1pF) provides additional design margin. This substitute maintains identical mechanical compatibility, thermal performance, and regulatory compliance. Higher inventory availability (4936 units) supports extended production runs. The 250V rating provides additional safety margin in applications subject to transient voltage conditions.

Both parts are manufactured by KEMET within the same CBR-SMD RF C0G series, ensuring consistent RF performance characteristics, high Q factor, low loss, and ultra-low ESR specifications required for microwave and high-frequency applications.

Frequently Asked Questions (FAQ)

Q: Can CBR06C309BAGAC be used as a direct replacement for CBR06C309C1GAC?

A: Yes. Both parts share identical capacitance (3 pF), temperature coefficient (C0G/NP0), package dimensions (0603/1608 Metric), and operating temperature range (-55°C ~ 125°C). The substitute offers higher voltage rating (250V vs. 100V) and tighter tolerance (±0.1pF vs. ±0.25pF), making it functionally compatible for any application requiring the original part.

Q: What is the primary difference between these two parts?

A: The main differences are voltage rating and tolerance. CBR06C309BAGAC is rated for 250V compared to 100V for CBR06C309C1GAC, and provides ±0.1pF tolerance versus ±0.25pF. All other electrical and mechanical specifications are identical.

Q: Are there any PCB layout changes required when substituting?

A: No. Both parts use identical 0603 (1608 Metric) package dimensions: 0.063" L x 0.031" W with 0.035" (0.90mm) maximum thickness. PCB footprints, solder pad layouts, and assembly processes remain unchanged.

Q: Do these parts have the same RF performance characteristics?

A: Yes. Both parts are from the KEMET CBR-SMD RF C0G series and feature identical high Q, low loss, and ultra-low ESR specifications. They are designed for the same RF, microwave, and high-frequency applications.

Q: What is the moisture sensitivity level for both parts?

A: Both parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.

Q: Are both parts RoHS compliant?

A: Yes. Both CBR06C309C1GAC and CBR06C309BAGAC are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Which part should be selected for new designs?

A: For new designs, CBR06C309BAGAC is recommended when voltage headroom is not constrained, as the 250V rating provides additional design margin and the ±0.1pF tolerance improves frequency stability in RF circuits. Both parts are in active production status with adequate inventory support.