PCR1A331MCL4GS Equivalent & Substitute Parts

Part Overview

The PCR1A331MCL4GS is a 330 µF, 10 V aluminum polymer capacitor manufactured by Nichicon in the PCR series. This surface mount component is designed for automotive applications with AEC-Q200 qualification. The part is currently obsolete, necessitating identification of functionally equivalent alternatives to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

PCR1A331MCL4GS

NichiconIn Stock: 1033PCR1A331MCL4GS Datasheet

Current PartRFQ

PCG1A331MCL1GS

NichiconIn Stock: 41489PCG1A331MCL1GS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCR1A331MCL4GS is based on the following critical parameters that must remain constant or compatible:

• Capacitance value: 330 µF (exact match required)
• Voltage rating: 10 V (minimum requirement)
• Dielectric type: Aluminum polymer (functional equivalence)
• Tolerance: ±20% (electrical performance tolerance)
• Mounting type: Surface Mount (PCB assembly compatibility)
• Package style: Radial, Can - SMD (footprint compatibility)
• RoHS compliance: ROHS3 (regulatory requirement)

The PCG1A331MCL1GS qualifies as a substitute based on matching capacitance, voltage rating, dielectric type, tolerance, mounting method, package configuration, and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

The PCG1A331MCL1GS serves as an active substitute for the obsolete PCR1A331MCL4GS. Both components share identical electrical specifications for capacitance, voltage rating, and tolerance. The substitute maintains ROHS3 compliance and is manufactured by the same supplier.

Key differences exist in thermal performance and physical dimensions. The PCG1A331MCL1GS operates to a maximum temperature of 105°C compared to 125°C for the main part, with reduced lifetime rating at elevated temperature. The substitute component features a larger physical footprint and different land size requirements. The PCG1A331MCL1GS provides higher ripple current capability at 100 kHz operation.

Selection of the PCG1A331MCL1GS requires verification that the application's maximum operating temperature does not exceed 105°C and that PCB layout accommodates the larger component dimensions and modified land pattern.

Frequently Asked Questions (FAQ)

Q: Can the PCG1A331MCL1GS replace the PCR1A331MCL4GS in all applications?

A: Substitution is valid when the application's maximum operating temperature remains below 105°C. Applications requiring sustained operation at temperatures between 105°C and 125°C require alternative solutions. PCB layout must accommodate the larger physical dimensions and modified surface mount land size.

Q: What are the critical electrical parameters for substitution?

A: Capacitance (330 µF), voltage rating (10 V), and tolerance (±20%) must match exactly. ESR values differ marginally (22 mOhm vs. 23 mOhm), which is within normal manufacturing variation for polymer capacitors.

Q: Are there footprint compatibility concerns?

A: Yes. The PCG1A331MCL1GS has a larger diameter (8.00 mm vs. 6.30 mm) and different land size requirements (8.30 mm x 8.30 mm vs. 6.60 mm x 6.60 mm). PCB redesign may be necessary for direct substitution.

Q: What is the significance of the different lifetime ratings?

A: The PCR1A331MCL4GS is rated for 4000 hours at 125°C, while the PCG1A331MCL1GS is rated for 2000 hours at 105°C. These ratings reflect different thermal stress profiles. Applications operating continuously at elevated temperatures should evaluate whether the reduced lifetime is acceptable.

Q: Does the higher ripple current rating of the substitute provide any advantage?

A: The PCG1A331MCL1GS supports 3.1 A ripple current at 100 kHz compared to 1.7 A for the main part. This provides additional margin in applications with high-frequency ripple current demands, though it does not change the fundamental substitution criteria.

Q: Are both parts RoHS compliant?

A: Yes. Both the PCR1A331MCL4GS and PCG1A331MCL1GS are ROHS3 compliant. The PCG1A331MCL1GS is REACH Affected, while the main part is REACH Unaffected.