URS1C331MPD Equivalent & Substitute Parts

Part Overview

The URS1C331MPD is a 330 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete and is no longer recommended for new designs. The URS series has been discontinued, making equivalent or substitute parts necessary for ongoing maintenance, repair, and legacy system support. Substitute parts must maintain the same capacitance, voltage rating, and general electrical characteristics while accommodating different packaging, mounting types, or enhanced performance specifications.

Substiute Parts

URS1C331MPD

NichiconIn Stock: 925URS1C331MPD Datasheet

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UUR1C331MNL1GS

NichiconIn Stock: 1667UUR1C331MNL1GS Datasheet

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UVK1C331MED

NichiconIn Stock: 8700UVK1C331MED Datasheet

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UVR1C331MPD

NichiconIn Stock: 3861UVR1C331MPD Datasheet

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UVR1E331MPD

NichiconIn Stock: 10752UVR1E331MPD Datasheet

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25ML330MEFC10X9

RubyconIn Stock: 109125ML330MEFC10X9 Datasheet

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25WXA330MEFC10X9

RubyconIn Stock: 108125WXA330MEFC10X9 Datasheet

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ESRG250ELL331MJ09S

Chemi-ConIn Stock: 1269ESRG250ELL331MJ09S Datasheet

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ECA-1CM331

Panasonic Electronic ComponentsIn Stock: 11624ECA-1CM331 Datasheet

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ECA-1CM331B

Panasonic Electronic ComponentsIn Stock: 2817ECA-1CM331B Datasheet

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ECA-1CM331BJ

Panasonic Electronic ComponentsIn Stock: 901ECA-1CM331BJ Datasheet

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ESMG160ELL331MHB5D

Chemi-ConIn Stock: 5096ESMG160ELL331MHB5D Datasheet

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SK331M016ST

Cornell Dubilier Electronics (CDE)In Stock: 798SK331M016ST Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the URS1C331MPD is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 16 V minimum (equal or higher acceptable)
• Tolerance: ±20% (standard for this category)
• Polarization: Polar (electrolytic capacitor type)
• Operating Temperature Range: -40°C ~ 85°C minimum
• Mounting Type: Through Hole (for direct PCB replacement)
• Package / Case: Radial, Can

Flexible Parameters (may vary):

• Lead Spacing: Acceptable within mechanical layout constraints
• Physical Dimensions: Size variations permitted if PCB footprint accommodates
• Lifetime @ Temperature: Equal or superior ratings acceptable
• Ripple Current: Higher ratings provide design margin

Substitute parts are grouped into three categories:

1. Direct Equivalents (Same Voltage, Through Hole): Parts maintaining 16 V rating with identical mounting type and compatible physical dimensions.

2. Upgraded Substitutes (Higher Voltage, Through Hole): Parts rated at 25 V or higher, providing voltage margin while maintaining through-hole mounting. These are suitable when circuit design permits higher voltage components.

3. Alternative Mounting (Surface Mount): Parts with identical electrical specifications but surface-mount packaging, applicable only when PCB redesign is feasible.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Voltage, 16 V):

ECA-1CM331, ECA-1CM331B, and ECA-1CM331BJ from Panasonic Electronic Components are active production parts suitable for direct electrical substitution. All three maintain 330 µF capacitance, 16 V rating, ±20% tolerance, and 2000 Hrs @ 85°C lifetime. Physical dimensions vary slightly in lead spacing and height; verify PCB footprint compatibility before selection. All are ROHS3 compliant.

For Upgraded Performance (Higher Voltage, 25 V):

25ML330MEFC10X9 (Rubycon) provides superior lifetime rating of 5000 Hrs @ 105°C with extended operating temperature range to 105°C. ESRG250ELL331MJ09S (Chemi-Con) maintains 2000 Hrs @ 85°C with 25 V rating. 25WXA330MEFC10X9 (Rubycon) includes AEC-Q200 automotive qualification and extended temperature range (-55°C ~ 105°C). All three are active production parts with identical lead spacing (0.197" / 5.00mm) and physical dimensions matching the original URS1C331MPD, enabling direct PCB mounting.

For Surface Mount Applications:

UUR1C331MNL1GS (Nichicon) provides identical electrical specifications in surface-mount packaging. This part is obsolete but available in inventory. Selection requires PCB redesign to accommodate SMD land pattern (0.327" L x 0.327" W / 8.30mm x 8.30mm).

Compliance Considerations:

All recommended substitutes are ROHS3 compliant and REACH unaffected, meeting current environmental regulations. The 25WXA330MEFC10X9 includes AEC-Q200 qualification for automotive applications if required.

Frequently Asked Questions (FAQ)

Q: Can I use a 25 V rated capacitor in place of the 16 V URS1C331MPD?

A: Yes. A higher voltage rating is electrically compatible and provides design margin. The circuit will operate normally. Physical dimensions must be verified for PCB fit. Rubycon 25ML330MEFC10X9 and Chemi-Con ESRG250ELL331MJ09S are direct mechanical replacements with identical lead spacing and height.

Q: What is the difference between the Panasonic ECA-1CM331, ECA-1CM331B, and ECA-1CM331BJ?

A: All three are electrically identical (330 µF, 16 V, ±20%, 2000 Hrs @ 85°C). Differences are in lead spacing and packaging: ECA-1CM331 uses 0.138" (4.60mm) spacing in bulk packaging; ECA-1CM331B uses 0.197" (5.00mm) spacing in tape & box; ECA-1CM331BJ uses 0.138" (4.60mm) spacing in tape & box. Select based on PCB footprint requirements and packaging preference.

Q: Is the Nichicon UVR1C331MPD a suitable replacement?

A: UVR1C331MPD is electrically compatible (330 µF, 16 V, ±20%, 2000 Hrs @ 85°C) but is marked "Not For New Designs." It has different lead spacing (0.138" vs.