Nichicon UVR2E331MRD Equivalent & Substitute Parts

Part Overview

The Nichicon UVR2E331MRD is a 330 µF, 250 V aluminum electrolytic capacitor in radial, can package configuration designed for general purpose applications. This component features a 2000-hour lifetime rating at 85°C and operates across a temperature range of -40°C to 85°C. The UVR2E331MRD is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system support and procurement planning.

Substiute Parts

UVR2E331MRD

NichiconIn Stock: 849UVR2E331MRD Datasheet

Current PartRFQ

UPS2E331MRD

NichiconIn Stock: 1224UPS2E331MRD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Nichicon UVR2E331MRD is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 330 µF
• Tolerance: ±20%
• Voltage Rating: 250 V
• Polarization: Polar
• Package Type: Radial, Can
• Mounting Type: Through Hole
• Lead Spacing: 0.394" (10.00 mm)
• Physical Dimensions: 0.866" Dia × 2.047" Height (Max)

Acceptable Variation Parameters:

• Lifetime @ Temperature: May exceed the original 2000 Hrs @ 85°C specification
• Operating Temperature Range: May extend beyond -40°C ~ 85°C
• Ripple Current Ratings: Minor variations acceptable within the same package envelope

The Nichicon UPS2E331MRD qualifies as a direct substitute based on identical electrical ratings, mechanical compatibility, and superior thermal performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The Nichicon UPS2E331MRD serves as a direct functional equivalent to the UVR2E331MRD. Both components maintain identical electrical specifications (330 µF, 250 V, ±20% tolerance) and mechanical compatibility (radial can package, 10.00 mm lead spacing, 22.00 mm diameter, 52.00 mm height). Both parts are ROHS3 compliant and REACH unaffected, satisfying equivalent regulatory requirements.

The UPS2E331MRD provides enhanced thermal performance with a 3000-hour lifetime at 105°C compared to the original 2000-hour rating at 85°C, and extends the maximum operating temperature to 105°C. This represents an improvement in reliability margin without introducing any compatibility concerns for through-hole PCB mounting applications.

Selection between these parts depends solely on availability and procurement lead time, as both are classified as obsolete products. The UPS2E331MRD is the preferred choice when available due to superior thermal characteristics.

Frequently Asked Questions (FAQ)

Q: Can the UPS2E331MRD replace the UVR2E331MRD in existing designs?

A: Yes. The UPS2E331MRD is mechanically and electrically compatible. Identical lead spacing (10.00 mm), package dimensions (22.00 mm diameter, 52.00 mm height), and electrical ratings (330 µF, 250 V, ±20%) ensure direct PCB mounting compatibility without design modification.

Q: What is the difference in thermal performance between these parts?

A: The UVR2E331MRD is rated for 2000 hours at 85°C. The UPS2E331MRD is rated for 3000 hours at 105°C, indicating superior thermal stability and extended operational life under elevated temperature conditions.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the UVR2E331MRD and UPS2E331MRD are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance restrictions.

Q: Why are both parts classified as obsolete?

A: Both the UVR and UPS series from Nichicon have been discontinued. Obsolete status indicates these components are no longer in active production. Existing inventory may be available through authorized distributors.

Q: Are there any ripple current differences that affect circuit performance?

A: Ripple current ratings are comparable. The UVR2E331MRD carries 1.17 A @ 120 Hz and 1.3455 A @ 10 kHz. The UPS2E331MRD carries 1.15 A @ 120 Hz and 1.3225 A @ 10 kHz. These minor variations remain within acceptable operating margins for general purpose applications.