0805J2003P30BUT Equivalent & Substitute Parts

Part Overview

The 0805J2003P30BUT is a 3.3 pF ceramic capacitor manufactured by Knowles Syfer, designed for high-frequency applications including RF and microwave circuits. This surface-mount multilayer ceramic capacitor (MLCC) operates at 200V rated voltage with C0G/NP0 temperature coefficient, ensuring stable capacitance across the -55°C to 125°C operating range. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the same package footprint and application requirements.

Substiute Parts

0805J2003P30BUT

Knowles SyferIn Stock: 7700805J2003P30BUT Datasheet

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0805J2503P30BUT

Knowles SyferIn Stock: 71130805J2503P30BUT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 0805J2003P30BUT is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

• Capacitance value: 3.3 pF (exact match required)
• Tolerance: ±0.1pF (exact match required)
• Temperature Coefficient: C0G/NP0 (exact match required)
• Package / Case: 0805 (2012 Metric) (exact match required)
• Mounting Type: Surface Mount, MLCC (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

Allowable Variation:

• Voltage - Rated: May be equal to or greater than 200V (higher voltage rating provides design margin)
• Packaging format: May differ (bulk vs. Tape & Reel) without affecting electrical compatibility

The substitute part 0805J2503P30BUT maintains all critical electrical parameters while providing an upgraded voltage rating of 250V, making it a direct functional substitute with enhanced voltage margin.

Parameter Comparison

Engineering Selection Recommendations

Both the 0805J2003P30BUT and 0805J2503P30BUT are active production parts with full ROHS3 compliance and REACH unaffected status. The substitute part 0805J2503P30BUT provides identical electrical performance with a 50V higher voltage rating, maintaining all mechanical and thermal specifications. Selection between these parts depends on circuit voltage requirements and design margin specifications. Both parts carry MSL 1 rating, indicating no moisture sensitivity constraints for storage and handling.

Frequently Asked Questions (FAQ)

Q: Can 0805J2503P30BUT replace 0805J2003P30BUT in all applications? A: Yes, the substitute part maintains identical capacitance, tolerance, temperature coefficient, and package specifications. The higher 250V rating provides additional voltage margin without affecting circuit performance.

Q: Are there physical compatibility concerns when substituting these parts? A: No. Both parts use the 0805 (2012 Metric) package with identical dimensions (0.079" L x 0.049" W) and maximum thickness (0.051"), ensuring direct PCB footprint compatibility.

Q: Does the voltage rating difference affect circuit behavior? A: No. Higher voltage rating does not alter capacitance value, tolerance, temperature stability, or frequency response. The substitute part operates identically in circuits designed for 200V or lower.

Q: What is the significance of C0G/NP0 temperature coefficient? A: C0G/NP0 designation indicates zero temperature coefficient, meaning capacitance remains stable across the -55°C to 125°C operating range. Both parts maintain this specification.

Q: Are packaging format differences (bulk vs. Tape & Reel) significant? A: Packaging format affects supply chain logistics and handling but does not impact electrical or mechanical performance. Component selection should be based on procurement and assembly requirements.

Q: What compliance certifications apply to both parts? A: Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.