Equivalent & Substitute Parts for UCX1E331MCS1GS

Part Overview

The UCX1E331MCS1GS is a 330 µF, 25 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Organizations maintaining legacy systems or requiring exact form-factor compatibility may need to identify functionally equivalent alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

UCX1E331MCS1GS

NichiconIn Stock: 870UCX1E331MCS1GS Datasheet

Current PartRFQ

UCX1E331MCL1GS

NichiconIn Stock: 1302UCX1E331MCL1GS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UCX1E331MCS1GS is determined by strict equivalence across the following critical parameters:

• Capacitance value: 330 µF (no tolerance variation)
• Voltage rating: 25 V (minimum requirement)
• ESR specification: 150 mOhm @ 100 kHz (electrical performance)
• Lifetime rating: 2000 Hrs @ 135°C (reliability specification)
• Operating temperature range: -40°C ~ 135°C (environmental compatibility)
• Package classification: Radial, Can - SMD (physical form factor)
• Surface mount land size: 0.406" L x 0.406" W (10.30mm x 10.30mm) (PCB compatibility)
• Compliance certifications: ROHS3, MSL 1 (regulatory and handling requirements)

The UCX1E331MCL1GS meets all these criteria and qualifies as a direct substitute. Physical height variation (0.425" vs 0.413") remains within acceptable assembly tolerances for radial can SMD packages.

Parameter Comparison

Engineering Selection Recommendations

The UCX1E331MCL1GS is electrically and mechanically equivalent to the UCX1E331MCS1GS. Both components share identical electrical specifications, compliance certifications, and surface mount land patterns. The 0.012" (0.30mm) height difference between the two parts falls within standard PCB assembly tolerances and does not affect circuit performance or board layout compatibility.

Both parts carry Not For New Designs status, indicating they represent legacy product lines. For applications requiring long-term component availability, evaluation of current-generation alternatives from Nichicon's active product portfolio is recommended as part of standard design review procedures.

Frequently Asked Questions (FAQ)

Q: Can UCX1E331MCL1GS be used as a direct replacement for UCX1E331MCS1GS in existing assemblies?

A: Yes. The parts are electrically identical across all specified parameters including capacitance, voltage rating, ESR, ripple current, and lifetime rating. The surface mount land pattern is identical. The 0.30mm height difference is within standard assembly tolerances.

Q: Are there compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant, carry MSL 1 rating, and meet identical environmental specifications across the -40°C to 135°C operating range.

Q: What determines whether a part can substitute for the UCX1E331MCS1GS?

A: Substitution requires matching capacitance (330 µF), voltage rating (25 V), ESR specification (150 mOhm @ 100 kHz), lifetime rating (2000 Hrs @ 135°C), operating temperature range, package type (Radial, Can - SMD), and surface mount land size (10.30mm x 10.30mm).

Q: Why are both parts marked Not For New Designs?

A: This designation indicates the UCX series has been superseded in Nichicon's current product portfolio. These parts remain available for legacy system support and maintenance applications.

Q: Does the height difference affect PCB assembly?

A: No. The 0.30mm difference (10.80mm vs 10.50mm) is within standard SMD assembly process tolerances and does not impact component placement, solder reflow, or circuit operation.