QAP2J335KRP Equivalent & Substitute Parts

Part Overview

The QAP2J335KRP is a 3.3 µF film capacitor rated for 630V DC, manufactured by Nichicon in the QAP series. This axial-mounted through-hole component uses polypropylene (PP) metallized dielectric technology and is designed for high-frequency and switching applications. The part is currently obsolete, making identification of suitable substitute components necessary for ongoing system support and maintenance.

Substiute Parts

QAP2J335KRP

NichiconIn Stock: 1154QAP2J335KRP Datasheet

Current PartRFQ

MPF1633330KJ

NichiconIn Stock: 1110MPF1633330KJ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the QAP2J335KRP is determined by the following critical parameters:

• Capacitance Value: 3.3 µF (exact match required)
• Voltage Rating: 630V DC minimum
• Dielectric Type: Polypropylene (PP), Metallized
• Mounting Configuration: Through-hole axial package
• Tolerance: ±10%
• Operating Temperature: -40°C ~ 85°C minimum range
• Compliance: ROHS3 and REACH requirements

The substitute part MPF1633330KJ is a Nichicon film capacitor; however, it carries a capacitance value of 0.33 µF, which differs from the required 3.3 µF specification. This represents a tenfold reduction in capacitance and does not meet the electrical requirements for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The MPF1633330KJ cannot serve as a direct substitute for the QAP2J335KRP due to the capacitance mismatch (0.33 µF versus 3.3 µF). While both components share the same manufacturer, voltage rating, tolerance, and axial package configuration, the tenfold difference in capacitance value makes this part unsuitable for applications requiring the original 3.3 µF specification.

For applications requiring the QAP2J335KRP, alternative sources should be evaluated based on the critical parameters listed above. Any substitute must maintain the 3.3 µF capacitance value, 630V DC rating, polypropylene metallized dielectric, through-hole axial mounting, and compliance certifications (ROHS3, REACH).

Frequently Asked Questions (FAQ)

Q: Can the MPF1633330KJ replace the QAP2J335KRP in my circuit?

A: No. The MPF1633330KJ has a capacitance of 0.33 µF, while the QAP2J335KRP requires 3.3 µF. This tenfold difference will cause circuit malfunction.

Q: What makes a film capacitor a valid substitute for the QAP2J335KRP?

A: A valid substitute must match all critical parameters: 3.3 µF capacitance, 630V DC rating, polypropylene metallized dielectric, ±10% tolerance, through-hole axial package, and -40°C ~ 85°C operating temperature range.

Q: Why is the QAP2J335KRP listed as obsolete?

A: The part is no longer in active production by Nichicon. However, inventory remains available from authorized distributors.

Q: Are there compliance differences between the main part and the listed substitute?

A: The QAP2J335KRP is confirmed ROHS3 compliant and REACH unaffected. The MPF1633330KJ compliance status is not specified in the provided data.

Q: Does package size matter when selecting a substitute?

A: Yes. The QAP2J335KRP uses a specific axial package with dimensions 1.146" W × 0.764" T × 2.047" L. Any substitute must fit the same PCB footprint and mounting configuration.