08055A4R3DAQ2A Ceramic Capacitor Equivalent & Substitute Parts

Part Overview

The 08055A4R3DAQ2A is a 4.3 pF ceramic capacitor manufactured by KYOCERA AVX, rated for 50V operation with C0G/NP0 temperature coefficient characteristics. This surface mount multilayer ceramic capacitor (MLCC) in 0805 (2012 Metric) package is designed for general purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching capacitance value, package form factor, temperature coefficient, and voltage rating compatibility.

Substiute Parts

08055A4R3DAQ2A

KYOCERA AVXIn Stock: 108308055A4R3DAQ2A Datasheet

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08051A4R3CAT2A

KYOCERA AVXIn Stock: 1552208051A4R3CAT2A Datasheet

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C0805C439C5GAC7800

KEMETIn Stock: 3496C0805C439C5GAC7800 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 08055A4R3DAQ2A is determined by the following critical parameters:

• Capacitance Value: Must be 4.3 pF to maintain circuit function
• Temperature Coefficient: Must be C0G or NP0 to ensure stable performance across -55°C to 125°C
• Package Form Factor: Must be 0805 (2012 Metric) for mechanical and electrical compatibility
• Mounting Type: Must be Surface Mount MLCC for PCB assembly compatibility
• Voltage Rating: Must be equal to or greater than 50V for safe operation margin

Two substitute parts meet these criteria: the 08051A4R3CAT2A (KYOCERA AVX, 100V rated) and the C0805C439C5GAC7800 (KEMET, 50V rated). Both maintain identical capacitance, temperature coefficient, and package specifications while offering improved tolerance or voltage margin characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active production components with full ROHS3 compliance and REACH unaffected status, matching the regulatory compliance profile of the main part.

The 08051A4R3CAT2A offers a voltage rating upgrade to 100V while maintaining the same manufacturer (KYOCERA AVX) and improving tolerance to ±0.25pF. This part is suitable for applications requiring higher voltage margin or tighter capacitance tolerance.

The C0805C439C5GAC7800 maintains the original 50V voltage rating while providing improved tolerance (±0.25pF) and features low ESL characteristics. This KEMET part is suitable for applications where voltage rating equivalence and ESL performance are prioritized.

Selection between substitutes depends on circuit voltage requirements and tolerance specifications. Both parts are electrically and mechanically compatible with the original 08055A4R3DAQ2A in 0805 package applications.

Frequently Asked Questions (FAQ)

Q: Can the 08051A4R3CAT2A (100V) be used in place of the 08055A4R3DAQ2A (50V)?

A: Yes. The 08051A4R3CAT2A is a direct substitute with higher voltage rating. A component rated for higher voltage can be used in circuits designed for lower voltage operation without functional degradation.

Q: What is the difference between the two substitute parts?

A: The 08051A4R3CAT2A is rated for 100V with ±0.25pF tolerance and is manufactured by KYOCERA AVX. The C0805C439C5GAC7800 is rated for 50V with ±0.25pF tolerance and is manufactured by KEMET. Both maintain identical capacitance and package specifications.

Q: Are all three parts mechanically compatible?

A: Yes. All three parts use the 0805 (2012 Metric) package form factor with identical footprint dimensions (0.079" L x 0.049" W / 2.01mm x 1.25mm), ensuring direct PCB assembly compatibility.

Q: Do the substitute parts have the same temperature stability?

A: Yes. All three parts feature C0G/NP0 temperature coefficient with identical operating temperature range of -55°C to 125°C, ensuring equivalent thermal performance.

Q: Are there any compliance differences between the parts?

A: No. All three parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating, providing identical regulatory and environmental compliance profiles.