QAP2G155JRP Film Capacitor Equivalent & Substitute Parts

Part Overview

The QAP2G155JRP is a 1.5 µF film capacitor manufactured by Nichicon, rated for 400V DC operation with polypropylene dielectric material in axial through-hole configuration. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations. The capacitor is designed for high-frequency and switching applications requiring stable capacitance and low ESR characteristics.

Substiute Parts

QAP2G155JRP

NichiconIn Stock: 908QAP2G155JRP Datasheet

Current PartRFQ

C4GAMUD4150AA1J

KEMETIn Stock: 1328C4GAMUD4150AA1J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QAP2G155JRP is determined by the following critical parameters:

• Capacitance Value: Must be 1.5 µF (exact match required)
• Tolerance: Must be ±5% or tighter
• Voltage Rating - DC: Must be equal to or greater than 400V
• Dielectric Material: Must be Polypropylene (PP), Metallized
• Operating Temperature Range: Must cover -40°C ~ 85°C minimum
• Mounting Type: Must be Through Hole
• Package / Case: Must be Axial
• Termination: Must be PC Pins
• Compliance: Must maintain ROHS3 compliance

The KEMET C4GAMUD4150AA1J meets all substitution criteria with a higher voltage rating (850V DC), providing enhanced margin for circuit protection while maintaining identical capacitance, tolerance, dielectric material, temperature range, and mounting configuration.

Parameter Comparison

Engineering Selection Recommendations

The C4GAMUD4150AA1J from KEMET is a direct functional substitute for the obsolete QAP2G155JRP. Both components maintain identical electrical specifications for capacitance, tolerance, dielectric material, and operating temperature range. The KEMET substitute provides a higher DC voltage rating (850V versus 400V), which increases design margin without affecting circuit performance in applications designed for 400V operation.

Both components maintain ROHS3 compliance and are suitable for high-frequency and switching applications. The KEMET part is currently in active production status, ensuring long-term availability compared to the obsolete Nichicon original. Physical dimensions differ slightly (KEMET: 24.50mm diameter × 44.00mm length versus Nichicon: 23.10mm width × 13.40mm thickness × 35.00mm length), requiring verification of PCB layout compatibility during implementation.

Frequently Asked Questions (FAQ)

Q: Can the C4GAMUD4150AA1J be used as a direct replacement for QAP2G155JRP in existing designs?

A: Yes. Both components share identical capacitance (1.5 µF), tolerance (±5%), dielectric material (polypropylene metallized), operating temperature range (-40°C ~ 85°C), and mounting configuration (through-hole axial with PC pins). The higher voltage rating of the KEMET part does not create incompatibility.

Q: What is the significance of the higher voltage rating on the substitute part?

A: The C4GAMUD4150AA1J is rated for 850V DC compared to the original 400V DC rating. This provides additional safety margin in the circuit and does not negatively impact performance in applications designed for 400V operation.

Q: Are there physical dimension differences between these parts?

A: Yes. The KEMET C4GAMUD4150AA1J measures 24.50mm diameter × 44.00mm length, while the Nichicon QAP2G155JRP measures 23.10mm width × 13.40mm thickness × 35.00mm length. PCB layout and mounting clearance must be verified before substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the QAP2G155JRP and C4GAMUD4150AA1J are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Why is the original part listed as obsolete?

A: The QAP2G155JRP is no longer in active production by Nichicon. The C4GAMUD4150AA1J from KEMET is currently manufactured and available, making it the appropriate choice for new designs and ongoing system support.