EET-UQ2W331DF Equivalent & Substitute Parts

Part Overview

The EET-UQ2W331DF is a 330 µF, 450 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new procurement requirements. The part operates across a temperature range of -25°C to 85°C with a rated lifetime of 2000 hours at 85°C, serving general-purpose applications requiring high-voltage energy storage and filtering.

Substiute Parts

EET-UQ2W331DF

Panasonic Electronic ComponentsIn Stock: 815EET-UQ2W331DF Datasheet

Current PartRFQ

450USG330MEFCSN30X35

RubyconIn Stock: 1273450USG330MEFCSN30X35 Datasheet

DirectRFQ

B43305B5337M000

EPCOS - TDK ElectronicsIn Stock: 273978B43305B5337M000 Datasheet

DirectRFQ

ESMQ451VSN331MR40S

Chemi-ConIn Stock: 1295ESMQ451VSN331MR40S Datasheet

DirectRFQ

380LQ331M450K042

Cornell Dubilier Electronics (CDE)In Stock: 1161380LQ331M450K042 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EET-UQ2W331DF is determined by strict adherence to the following electrical and mechanical parameters:

Primary Matching Criteria:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 450 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package Type: Radial, Can - Snap-In (exact match required)
• Mounting Type: Through Hole (exact match required)
• Polarization: Polar (exact match required)
• Diameter: 1.181" (30.00mm) (exact match required)

Secondary Compatibility Parameters:

• Operating Temperature Range: -25°C ~ 85°C minimum
• Lead Spacing: 0.394" (10.00mm) standard for snap-in packages
• Height variation: Acceptable within mechanical envelope constraints

All substitute parts listed meet these primary criteria. Variations in ESR, ripple current ratings, and lifetime specifications do not disqualify parts from substitution eligibility, as these represent performance enhancements or different design approaches within the same functional category.

Parameter Comparison

Engineering Selection Recommendations

For Active Production and New Designs:

The 450USG330MEFCSN30X35 (Rubycon USG series) is the primary recommended substitute. This part maintains full electrical and mechanical compatibility with the EET-UQ2W331DF while offering active product status and ROHS3 compliance. The extended lifetime rating of 3000 hours at 85°C provides enhanced reliability compared to the original 2000-hour specification. Height increase to 1.457" (37.00mm) remains within typical mechanical envelope tolerances for snap-in capacitor applications.

The ESMQ451VSN331MR40S (Chemi-Con SMQ series) is an alternative active substitute with full RoHS compliance. This part maintains identical electrical specifications and operating temperature range. The increased height of 1.575" (40.00mm) requires verification against available PCB mounting space.

The 380LQ331M450K042 (Cornell Dubilier 380LQ series) is an active substitute with ROHS3 compliance and identical ESR characteristics to the original part. The maximum height of 1.654" (42.00mm) represents the largest footprint among available substitutes and requires explicit mechanical clearance confirmation.

For Legacy System Support:

The B43305B5337M000 (EPCOS - TDK B43305 series) maintains compatibility but carries "Not For New Designs" status. This part is suitable only for replacement in existing systems where design freeze is required. The extended operating temperature range of -40°C to 85°C provides additional thermal margin if required by application specifications.

Frequently Asked Questions (FAQ)

Q: Can the EET-UQ2W331DF be directly replaced with any of these substitute parts?

A: Yes. All listed substitute parts meet the mandatory electrical and mechanical parameters: 330 µF capacitance, 450 V voltage rating, ±20% tolerance, radial snap-in package, and 30mm diameter. Direct pin-compatible replacement is possible without circuit modification.

Q: What is the primary difference between substitute options?

A: The main differences are product status, compliance certifications, and physical height. The Rubycon 450USG330MEFCSN30X35 offers the best combination of active status and extended lifetime. The Chemi-Con and Cornell Dubilier parts provide alternative sourcing with varying height specifications. The EPCOS part is suitable only for legacy applications.

Q: Does the height variation affect compatibility?

A: Height differences range from 35mm (original) to 42mm (Cornell Dubilier). Substitution is mechanically compatible if the PCB layout provides sufficient clearance above the capacitor. Verify available space in the mounting area before selection.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts carry RoHS3 or RoHS compliance certification. The original EET-UQ2W331DF compliance status is not specified in available documentation.

Q: Which substitute offers the longest operational lifetime?

A: The Rubycon 450USG330MEFCSN30X35 provides 3000 hours at 85°C, compared to 2000 hours for the original and other substitutes. This represents a 50% improvement in rated lifetime under standard thermal conditions.

Q: Can I use the B43305B5337M000 in new designs?

A: No. This part carries "Not For New Designs" status. It is suitable only for replacement in existing systems or legacy applications where design continuity is required.

Q: What lead spacing should I expect?

A: All substitute parts use 0.394" (10.00mm) lead spacing, which is the standard for snap-in aluminum electrolytic capacitors. This matches typical PCB pad spacing for this package type.