UVR2G330MHA Equivalent & Substitute Parts

Part Overview

The Nichicon UVR2G330MHA is a 33 µF, 400 V aluminum electrolytic capacitor in radial, can package configuration. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing maintenance, repair, and legacy system support. The UVR series represents a discontinued product line, requiring engineers to identify compatible alternatives that maintain electrical and mechanical compatibility with existing designs.

Substiute Parts

UVR2G330MHA

NichiconIn Stock: 742UVR2G330MHA Datasheet

Current PartRFQ

UVR2G330MHD

NichiconIn Stock: 1435UVR2G330MHD Datasheet

DirectRFQ

B43851A5336M000

EPCOS - TDK ElectronicsIn Stock: 818B43851A5336M000 Datasheet

UpgradeRFQ

SK330M400ST

Cornell Dubilier Electronics (CDE)In Stock: 814SK330M400ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UVR2G330MHA are categorized based on strict electrical and mechanical compatibility criteria:

Direct Substitutes maintain identical electrical specifications (33 µF, 400 V, ±20% tolerance) and mechanical dimensions (lead spacing, case diameter, height). These parts are interchangeable without circuit modification.

Upgrade Substitutes provide enhanced electrical performance while maintaining or exceeding the original specifications. These parts feature higher voltage ratings, improved lifetime ratings, or lower ESR values, making them suitable for applications requiring increased reliability margins.

Similar Substitutes match the core electrical parameters (33 µF, 400 V, ±20% tolerance) and mechanical footprint but may differ in secondary characteristics such as ESR, ripple current ratings, or operating temperature range. These parts require verification of application-specific requirements before implementation.

The following parameters determine substitution eligibility:

• Capacitance: 33 µF (exact match required)
• Voltage Rating: 400 V minimum
• Tolerance: ±20%
• Lead Spacing: 0.295" (7.50 mm)
• Case Diameter: 0.630" (16.00 mm)
• Mounting Type: Through Hole, Radial

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (UVR2G330MHD): This Nichicon part provides identical electrical and mechanical specifications to the original UVR2G330MHA. The primary advantage is ROHS3 compliance, addressing regulatory requirements for new production environments. Product status is "Not For New Designs," indicating limited future availability. This option is suitable for legacy system repairs where exact specification matching is required.

Upgrade Substitution (B43851A5336M000): The EPCOS B43851A5336M000 offers enhanced performance with 450 V rating (12.5% margin above original 400 V specification), extended lifetime of 3000 Hrs @ 105°C (versus 2000 Hrs @ 85°C), and expanded operating temperature range to 105°C. Active product status ensures long-term availability. Height difference of 0.020" (0.50 mm) is within typical PCB layout tolerances. ROHS3 compliance is confirmed. This option is recommended for applications requiring improved reliability and regulatory compliance.

Similar Substitution (SK330M400ST): The Cornell Dubilier SK330M400ST maintains identical voltage and capacitance specifications with matching lead spacing and case diameter. Height is reduced to 1.063" (27.00 mm), providing a 0.236" (6.00 mm) reduction from the original. Active product status ensures availability. ROHS3 compliance is confirmed. Operating temperature minimum is -25°C (versus -40°C), which may be a constraint for extreme cold environment applications. This option is suitable for space-constrained designs where reduced height is beneficial.

Frequently Asked Questions (FAQ)

Q: Can UVR2G330MHD be used as a direct replacement for UVR2G330MHA?

A: Yes. Both parts share identical electrical specifications (33 µF, 400 V, ±20% tolerance) and mechanical dimensions (lead spacing, case diameter, height). The primary difference is ROHS3 compliance in the MHD variant. Direct PCB substitution is possible without circuit modification.

Q: What is the advantage of using B43851A5336M000 over the original part?

A: The B43851A5336M000 provides three key advantages: higher voltage rating (450 V versus 400 V), extended lifetime (3000 Hrs @ 105°C versus 2000 Hrs @ 85°C), and active product status ensuring long-term availability. These improvements support applications requiring enhanced reliability margins and regulatory compliance.

Q: Is the height difference in SK330M400ST a concern?

A: The SK330M400ST is 0.236" (6.00 mm) shorter than the original UVR2G330MHA. This reduction is within typical PCB layout tolerances and may be advantageous in space-constrained designs. Verify clearance with adjacent components and mechanical constraints before implementation.

Q: Are all substitute parts ROHS3 compliant?

A: The UVR2G330MHA is RoHS non-compliant. The UVR2G330MHD, B43851A5336M000, and SK330M400ST are all ROHS3 compliant, meeting current regulatory requirements for new production and export to regulated markets.

Q: Which substitute part is recommended for new designs?

A: The B43851A5336M000 is recommended for new designs due to active product status, enhanced electrical performance, and ROHS3 compliance. The SK330M400ST is an alternative if reduced height is a design requirement.

Q: Can these parts be used interchangeably in existing circuits?

A: Electrical interchangeability is confirmed for all listed substitutes based on matching capacitance, voltage rating, and tolerance specifications. Mechanical interchangeability requires verification of PCB layout, lead spacing, and height clearances. The B43851A5336M000 height difference of 0.020" (0.50 mm) is typically acceptable; the SK330M400ST height reduction of 0.236" (6.00 mm) requires clearance verification.