0603J2500331MXT Equivalent & Substitute Parts

Part Overview

The 0603J2500331MXT is a 330 pF ceramic capacitor manufactured by Knowles Syfer, rated for 250V with X7R temperature coefficient in 0603 (1608 Metric) surface mount package. This component is classified as Active and suitable for general purpose applications. Substitute parts are necessary to address inventory availability, design optimization for tolerance requirements, or to transition from legacy components to actively manufactured alternatives.

Substiute Parts

0603J2500331MXT

Knowles SyferIn Stock: 10180603J2500331MXT Datasheet

Current PartRFQ

C0603C331JAGAC7867

KEMETIn Stock: 72461C0603C331JAGAC7867 Datasheet

MFR RecommendedRFQ

C1608C0G2E331K080AA

TDK CorporationIn Stock: 9009C1608C0G2E331K080AA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0603J2500331MXT is determined by the following mandatory parameters:

• Capacitance value of 330 pF
• Voltage rating of 250V or higher
• 0603 (1608 Metric) package footprint
• Surface mount MLCC mounting type
• Operating temperature range of -55°C ~ 125°C or wider
• MSL rating of 1 (Unlimited)
• RoHS3 compliance

Temperature coefficient (X7R, C0G/NP0) and tolerance (±20%, ±10%, ±5%) are secondary parameters that may vary between substitutes while maintaining functional equivalence. C0G/NP0 dielectrics offer superior temperature stability compared to X7R and represent acceptable substitutes for general purpose applications where tighter tolerance control is beneficial.

Parameter Comparison

Engineering Selection Recommendations

For new designs, the C0603C331JAGAC7867 (KEMET) is the preferred substitute. This part maintains Active product status, offers superior tolerance control at ±5%, and provides C0G/NP0 temperature coefficient characteristics that ensure stable capacitance across the full operating temperature range. The marginal increase in thickness (0.034" vs 0.031") is within standard PCB assembly tolerances.

The C1608C0G2E331K080AA (TDK) is functionally equivalent but carries a "Not For New Designs" status, making it suitable only for legacy system maintenance or replacement applications where existing inventory must be maintained.

The 0603J2500331MXT (Knowles Syfer) remains the original specification and is appropriate for applications where X7R temperature coefficient performance is explicitly required or where existing supply chain relationships are established.

Frequently Asked Questions (FAQ)

Q: Can C0G/NP0 temperature coefficient substitutes replace X7R in all applications?

A: C0G/NP0 dielectrics provide superior temperature stability with minimal capacitance variation across temperature extremes. They are functionally compatible with X7R specifications for general purpose applications. However, applications with specific X7R performance requirements should retain the original part.

Q: What is the impact of tolerance differences between ±20%, ±10%, and ±5%?

A: Tighter tolerance substitutes (±5% and ±10%) provide more precise capacitance values compared to the original ±20% specification. This represents an improvement for applications requiring controlled capacitance accuracy. No circuit redesign is necessary when substituting to tighter tolerances.

Q: Are the thickness variations between substitute parts significant?

A: The thickness range from 0.031" to 0.035" (0.80mm to 0.90mm) falls within standard PCB assembly clearance specifications. Verify PCB design constraints if height-critical applications are involved, but standard designs accommodate this variation without modification.

Q: What does "Not For New Designs" status mean for the TDK part?

A: This designation indicates the manufacturer is transitioning the product out of active production. The part remains available and functionally equivalent but should not be selected for new product development. Use for legacy system support only.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitutes maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory compatibility across all three options.