UVR2D331MRD Equivalent & Substitute Parts

Part Overview

The UVR2D331MRD is a 330 µF, 200 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 general purpose applications requiring polar capacitance storage. The UVR series has reached obsolete product status, making identification of active equivalent parts essential for ongoing system support and new design implementations.

Substiute Parts

UVR2D331MRD

NichiconIn Stock: 809UVR2D331MRD Datasheet

Current PartRFQ

LDM2D331MERYGA

NichiconIn Stock: 273957LDM2D331MERYGA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the UVR2D331MRD is determined by strict equivalence across the following parameters:

• Capacitance value: 330 µF (exact match required)
• Voltage rating: 200 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Mounting type: Through Hole (exact match required)
• Package type: Radial, Can (exact match required)
• Lifetime rating: 2000 Hrs @ 85°C (exact match required)
• Operating temperature range: -40°C ~ 85°C (exact match required)

The LDM2D331MERYGA meets all mandatory electrical and mechanical parameters for direct substitution. Physical dimensions vary within acceptable through-hole mounting constraints, and ripple current performance exceeds the original specification.

Parameter Comparison

Engineering Selection Recommendations

The LDM2D331MERYGA is the qualified substitute for the obsolete UVR2D331MRD. Both components are manufactured by Nichicon and maintain identical electrical specifications: 330 µF capacitance, 200 V voltage rating, ±20% tolerance, and 2000-hour lifetime at 85°C.

The LDM series component carries active product status, ensuring continued availability and supply chain reliability. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements.

Physical dimensions differ in lead spacing (7.50mm versus 10.00mm) and height (32.00mm versus 42.00mm). The substitute part is more compact while maintaining the same 20.00mm diameter. Lead spacing reduction requires PCB layout verification to confirm pad compatibility. The reduced height provides space optimization benefits in constrained applications.

Ripple current performance of the LDM2D331MERYGA exceeds the original specification across both low and high frequency ranges, providing enhanced thermal margin in ripple-current-limited applications.

Frequently Asked Questions (FAQ)

Q: Can the LDM2D331MERYGA replace the UVR2D331MRD in existing designs?

A: Yes, provided PCB layout accommodates the reduced lead spacing of 7.50mm. All electrical parameters match exactly. Physical dimensions are compatible with through-hole mounting, though height reduction from 42.00mm to 32.00mm may require clearance verification in space-constrained assemblies.

Q: What is the primary reason for substitution?

A: The UVR2D331MRD is obsolete. The LDM2D331MERYGA is an active product from the same manufacturer with identical electrical specifications and superior ripple current performance.

Q: Are there compliance differences between the two parts?

A: No. Both components are ROHS3 compliant and REACH unaffected. Regulatory status is equivalent.

Q: How do the ripple current ratings compare?

A: The LDM2D331MERYGA provides higher ripple current capacity at both low frequency (1.49 A @ 120 Hz versus 1.13 A) and high frequency (2.235 A @ 50 kHz versus 1.2995 A @ 10 kHz). This represents improved thermal performance in applications with significant AC ripple current.

Q: What PCB modifications are required for substitution?

A: Lead spacing changes from 10.00mm to 7.50mm. Verify that existing PCB pad spacing accommodates the narrower lead pitch. No other modifications are required if pad compatibility is confirmed.