UUR1A331MNL1GS Equivalent & Substitute Parts

Part Overview

The UUR1A331MNL1GS is a 330 µF, 10 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Nichicon. This component is classified as obsolete, indicating it has been discontinued and is no longer recommended for new designs. Finding equivalent or substitute parts is necessary to maintain supply chain continuity for existing applications and to support ongoing production of legacy systems.

Substiute Parts

UUR1A331MNL1GS

NichiconIn Stock: 950UUR1A331MNL1GS Datasheet

Current PartRFQ

UUX1A331MNL6GS

NichiconIn Stock: 2647UUX1A331MNL6GS Datasheet

MFR RecommendedRFQ

AVE337M10F24T-F

Cornell Dubilier Electronics (CDE)In Stock: 1654AVE337M10F24T-F Datasheet

SimilarRFQ

EEE-1AA331AP

Panasonic Electronic ComponentsIn Stock: 1856EEE-1AA331AP Datasheet

SimilarRFQ

EEE-1AA331P

Panasonic Electronic ComponentsIn Stock: 15583EEE-1AA331P Datasheet

SimilarRFQ

EDK337M010A9MAA

KEMETIn Stock: 5079EDK337M010A9MAA Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UUR1A331MNL1GS are classified based on the following substitution criteria:

Primary Substitution Parameters:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 10 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package Type: Radial, Can - SMD (exact match required)
• Physical Dimensions: 0.315" Dia (8.00mm) with compatible height
• Land Size: 0.327" L x 0.327" W (8.30mm x 8.30mm) or compatible
• Mounting Type: Surface Mount (exact match required)
• RoHS Compliance: ROHS3 Compliant (maintained)
• Moisture Sensitivity Level: 1 (Unlimited) (maintained)

Substitution Categories:

MFR Recommended: UUX1A331MNL6GS (Nichicon) - Same manufacturer, active product status, improved thermal performance (2000 Hrs @ 105°C vs. 85°C), extended operating temperature range (-55°C ~ 105°C), identical physical footprint.

Similar Manufacturer Parts: AVE337M10F24T-F (Cornell Dubilier Electronics), EEE-1AA331AP (Panasonic), EEE-1AA331P (Panasonic) - Meet all core electrical and mechanical parameters with identical capacitance, voltage, tolerance, and package dimensions.

Parametric Equivalent: EDK337M010A9MAA (KEMET) - Meets all electrical specifications and physical requirements with active product status.

Parameter Comparison

Engineering Selection Recommendations

For New Designs: UUX1A331MNL6GS (Nichicon) is the recommended primary substitute. This part maintains manufacturer continuity with the original UUR1A331MNL1GS while offering active product status, extended operating temperature range (-55°C ~ 105°C), and improved thermal performance (2000 Hrs @ 105°C). All physical and electrical parameters remain compatible with the original design.

For Legacy System Support: EDK337M010A9MAA (KEMET) provides an active alternative with full parameter compatibility. This part meets all electrical specifications, maintains ROHS3 compliance, and offers reliable supply availability.

For Existing Inventory Utilization: EEE-1AA331P (Panasonic) offers the highest inventory availability (15,511 pcs) among substitute options. While marked as "Not For New Designs," this part meets all core electrical and mechanical requirements and maintains RoHS compliance for legacy applications.

Compatibility Considerations: All listed substitutes maintain identical capacitance (330 µF), voltage rating (10 V), tolerance (±20%), and surface mount radial can package configuration. Physical dimensions are compatible across all options, with minor height variations (0.394" to 0.413") that remain within typical PCB assembly tolerances. Land size compatibility is maintained for all parts except AVE337M10F24T-F, which has a slightly larger land size (0.331" vs. 0.327").

Frequently Asked Questions (FAQ)

Q: Can UUX1A331MNL6GS be used as a direct replacement for UUR1A331MNL1GS?

A: Yes. UUX1A331MNL6GS is the manufacturer-recommended substitute from Nichicon. Both parts share identical capacitance (330 µF), voltage rating (10 V), tolerance (±20%), package type (Radial, Can - SMD), and physical dimensions (0.315" Dia, 0.413" height). The UUX variant offers improved thermal performance and extended operating temperature range, making it suitable for direct PCB substitution.

Q: What is the difference between "MFR Recommended," "Similar Manufacturer," and "Parametric Equivalent" classifications?

A: MFR Recommended parts are from the original manufacturer (Nichicon) and represent the preferred upgrade path. Similar Manufacturer parts meet all core electrical and mechanical specifications but are from alternative suppliers. Parametric Equivalent parts satisfy all required electrical parameters and physical constraints from additional manufacturers. All three categories are electrically and mechanically compatible with the original part.

Q: Are there any land size compatibility issues with these substitutes?

A: Most substitutes maintain the standard land size of 0.327" L x 0.327" W (8.30mm x 8.30mm). AVE337M10F24T-F has a slightly larger land size of 0.331" L x 0.331" W (8.40mm x 8.40mm). This minor difference may require PCB layout verification for designs with tight component spacing, though typical assembly processes accommodate this variation.

Q: Which substitute offers the best long-term availability?

A: UUX1A331MNL6GS (Nichicon) and EDK337M010A9MAA (KEMET) both have active product status, indicating ongoing manufacturer support and supply continuity. UUX1A331MNL6GS is preferred as it maintains the original manufacturer relationship.

Q: Do all substitutes maintain RoHS compliance?

A: Yes. All listed substitutes are RoHS compliant. The original part and UUX1A331MNL6GS, AVE337M10F24T-F, and EDK337M010A9MAA are ROHS3 compliant. EEE-1AA331AP and EEE-1AA331P are RoHS compliant. All parts maintain Moisture Sensitivity Level 1 (Unlimited).

Q: What are the ripple current differences among substitutes?

A: Ripple current ratings vary across substitutes. UUX1A331MNL6GS offers higher ripple current capacity (296 mA @ 120 Hz, 384.8 mA @ 10 kHz) compared to the original (240 mA @ 120 Hz, 312 mA @ 10 kHz). Panasonic parts (EEE-1AA331AP, EEE-1AA331P) provide the highest ripple current ratings (390 mA @ 120 Hz, 663 mA @ 10 kHz). For applications requiring specific ripple current performance, verify the substitute meets or exceeds the original design requirements.

Q: Can substitutes be mixed in the same production batch?

A: All listed substitutes meet identical electrical specifications (330 µF, 10 V, ±20%) and physical package requirements. However, mixing different manufacturers in a single production batch may introduce minor variations in ESR, ripple current performance, and thermal characteristics. For consistency, maintain single-source substitution within a production run when possible.