0603J2002P40DUT Equivalent & Substitute Parts

Part Overview

The 0603J2002P40DUT is a 2.4 pF ceramic capacitor manufactured by Knowles Syfer, designed for RF and microwave applications requiring high Q, low loss, and ultra-low ESR characteristics. This surface mount MLCC operates across -55°C to 125°C with a rated voltage of 200V and C0G/NP0 temperature coefficient stability. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts may be required due to inventory constraints, lead time considerations, or design optimization for enhanced voltage ratings or tighter tolerance specifications.

Substiute Parts

0603J2002P40DUT

Knowles SyferIn Stock: 8770603J2002P40DUT Datasheet

Current PartRFQ

CBR06C249BAGAC

KEMETIn Stock: 7511CBR06C249BAGAC Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0603J2002P40DUT is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance value: 2.4 pF (exact match required)
• Temperature coefficient: C0G/NP0 (ensures frequency stability across operating range)
• Package / Case: 0603 (1608 Metric) (ensures mechanical and electrical compatibility with PCB layout)
• Mounting type: Surface Mount, MLCC (maintains assembly process compatibility)
• Operating temperature range: -55°C ~ 125°C (minimum requirement)

Allowable Variation Parameters:

• Voltage rating: May be equal to or greater than 200V (higher voltage rating provides design margin)
• Tolerance: May be tighter than ±0.5pF (improved precision is acceptable)
• Thickness: Minor variation acceptable within standard 0603 package specifications

The substitute part CBR06C249BAGAC meets all mandatory matching criteria while providing enhanced specifications in voltage rating (250V) and tolerance (±0.1pF).

Parameter Comparison

Engineering Selection Recommendations

The CBR06C249BAGAC from KEMET is a direct substitute for the 0603J2002P40DUT. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility. The substitute part provides enhanced electrical performance through a higher voltage rating (250V versus 200V) and tighter capacitance tolerance (±0.1pF versus ±0.5pF), both of which are beneficial for RF and microwave circuit applications. The 0.004" (0.10mm) increase in maximum thickness remains within standard 0603 package tolerances and does not impact PCB assembly or thermal management. Both parts are active products with unlimited moisture sensitivity rating, ensuring consistent availability and handling requirements.

Frequently Asked Questions (FAQ)

Q: Can CBR06C249BAGAC replace 0603J2002P40DUT in all RF and microwave applications?

A: Yes. Both parts share identical capacitance (2.4 pF), temperature coefficient (C0G/NP0), operating temperature range (-55°C to 125°C), package dimensions (0603/1608 Metric), and feature set (High Q, Low Loss, Ultra Low ESR). The substitute part's higher voltage rating and tighter tolerance provide equal or improved performance.

Q: What is the significance of the voltage rating difference (200V vs. 250V)?

A: The substitute part's 250V rating provides additional design margin and stress relief in high-voltage RF circuits. This does not affect compatibility; higher voltage-rated capacitors are suitable for applications specified at lower voltages.

Q: Does the 0.004" thickness difference affect PCB assembly?

A: No. Both parts conform to 0603 (1608 Metric) package specifications. The 0.035" maximum thickness of the substitute remains within standard 0603 tolerances and does not impact pick-and-place equipment, reflow soldering, or board-level clearances.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. Regulatory and handling requirements are identical.

Q: Which part should be selected for new designs?

A: Selection depends on inventory availability and supply chain considerations. Both parts are active products. The CBR06C249BAGAC offers tighter tolerance specification, which may be advantageous for precision RF circuits requiring enhanced capacitance stability.