UKW1C331MPD Equivalent & Substitute Parts

Part Overview

The UKW1C331MPD is a 330 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 2000 hours at 85°C and is designed for audio applications. The part carries a "Not For New Designs" status, indicating it is an older product line. Finding equivalent or substitute parts is necessary for ongoing maintenance, repair, and legacy system support where original stock may be depleted or unavailable.

Substiute Parts

UKW1C331MPD

NichiconIn Stock: 4116UKW1C331MPD Datasheet

Current PartRFQ

UHE1C331MPD

NichiconIn Stock: 4089UHE1C331MPD Datasheet

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UPW1C331MPD

NichiconIn Stock: 8292UPW1C331MPD Datasheet

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UFG1C331MPM

NichiconIn Stock: 1710UFG1C331MPM Datasheet

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UFW1C331MPD

NichiconIn Stock: 1384UFW1C331MPD Datasheet

Parametric EquivalentRFQ

EEU-FC1C331

Panasonic Electronic ComponentsIn Stock: 4868EEU-FC1C331 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the UKW1C331MPD is determined by strict adherence to the following parameters:

• Capacitance: Must be 330 µF (no tolerance variation)
• Voltage Rating: Must be 16 V (no downrating)
• Tolerance: Must be ±20%
• Polarization: Must be Polar
• Package / Case: Must be Radial, Can
• Mounting Type: Must be Through Hole
• Lead Spacing: Preferred at 0.138" (4.60mm) for direct PCB compatibility; 0.197" (5.00mm) requires PCB layout modification
• Physical Dimensions: Size and height must accommodate existing PCB footprints
• RoHS Status: Must maintain ROHS3 Compliance

Substitute parts are grouped into three categories:

Upgrade Parts: Higher lifetime ratings or extended operating temperature ranges while maintaining identical electrical and mechanical specifications.

Similar Parts: Functionally equivalent but with different physical dimensions (lead spacing, can diameter, height) requiring PCB layout verification.

Parametric Equivalents: Identical specifications across all critical parameters.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Identical Footprint)

UFW1C331MPD and UHE1C331MPD are direct mechanical and electrical replacements for UKW1C331MPD. Both maintain the 0.138" (4.60mm) lead spacing and 8.00mm can diameter, requiring no PCB layout modifications. UHE1C331MPD offers extended lifetime (7000 hours at 105°C) compared to the original 2000 hours at 85°C, providing improved reliability for long-term applications.

Cross-Manufacturer Alternative

EEU-FC1C331 (Panasonic) is electrically and mechanically equivalent to UKW1C331MPD with identical lead spacing and can dimensions. This part carries Active product status and AEC-Q200 automotive qualification, making it suitable for applications requiring current production availability and automotive-grade reliability. Operating temperature range extends to -55°C ~ 105°C.

Footprint Modification Required

UFG1C331MPM requires PCB layout verification due to different lead spacing (0.197" vs. 0.138") and larger physical dimensions (10.00mm diameter, 17.50mm height vs. 8.00mm diameter, 11.50mm height). This part is marked Obsolete and carries a lower lifetime rating (1000 hours at 85°C), making it unsuitable for new applications or long-term reliability requirements.

Product Status Considerations

All Nichicon substitutes carry "Not For New Designs" status. For new designs or applications requiring active production support, EEU-FC1C331 (Panasonic, Active status) is the recommended choice. For legacy system maintenance where original UKW1C331MPD stock is unavailable, UHE1C331MPD or UPW1C331MPD provide improved reliability with identical mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can UFG1C331MPM be used as a direct replacement for UKW1C331MPD?

A: No. UFG1C331MPM has different lead spacing (0.197" vs. 0.138") and larger physical dimensions (10.00mm diameter vs. 8.00mm diameter). PCB layout modification is required. Additionally, UFG1C331MPM is marked Obsolete with lower lifetime rating (1000 hours at 85°C vs. 2000 hours), making it unsuitable for direct substitution.

Q: What is the difference between UHE1C331MPD and UPW1C331MPD?

A: Both are upgrades to UKW1C331MPD with identical lead spacing and can dimensions. UHE1C331MPD offers 7000 hours lifetime at 105°C with operating range -40°C ~ 105°C. UPW1C331MPD offers 3000 hours lifetime at 105°C with extended operating range -55°C ~ 105°C. Selection depends on temperature environment and required lifetime.

Q: Is EEU-FC1C331 compatible with existing PCB layouts designed for UKW1C331MPD?

A: Yes. EEU-FC1C331 maintains identical lead spacing (0.138" / 4.60mm) and can diameter (0.315" / 8.00mm), requiring no PCB modifications. It is a direct mechanical and electrical replacement.

Q: Why should I choose EEU-FC1C331 over Nichicon alternatives?

A: EEU-FC1C331 carries Active product status, ensuring ongoing production availability. It includes AEC-Q200 automotive qualification and extends operating temperature range to -55°C ~ 105°C. For applications requiring current production support and automotive-grade reliability, EEU-FC1C331 is the preferred choice.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 Compliance, matching the original UKW1C331MPD specification.

Q: What parameters must remain identical for a valid substitution?

A: Capacitance (330 µF), voltage rating (16 V), tolerance (±20%), polarization (Polar), package type (Radial, Can), and mounting type (Through Hole) must remain unchanged. Lead spacing and physical dimensions should match to avoid PCB layout modifications.