UFW2A331MHD Equivalent & Substitute Parts

Part Overview

The UFW2A331MHD is a 330 µF, 100 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is rated for 2000 hours at 85°C and is designed for audio applications. The part carries a "Not For New Designs" status, making identification of equivalent alternatives essential for ongoing production and maintenance applications.

Substiute Parts

UFW2A331MHD

NichiconIn Stock: 1235UFW2A331MHD Datasheet

Current PartRFQ

UKW2A331MHD

NichiconIn Stock: 1415UKW2A331MHD Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the UFW2A331MHD is determined by strict equivalence across the following critical parameters:

• Capacitance value: 330 µF (exact match required)
• Rated voltage: 100 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime rating: 2000 Hrs @ 85°C (exact match required)
• Operating temperature range: -40°C ~ 85°C (exact match required)
• Polarization: Polar (exact match required)
• Ripple current specifications: 750 mA @ 120 Hz and 1.125 A @ 10 kHz (exact match required)
• Package configuration: Radial, Can with 0.197" (5.00 mm) lead spacing (exact match required)
• Mounting type: Through Hole (exact match required)

The substitute part UKW2A331MHD meets all these criteria and is therefore a direct parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the UFW2A331MHD and UKW2A331MHD are classified as "Not For New Designs" and carry identical electrical and mechanical specifications. Selection between these parts should be based on inventory availability and lead time requirements. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for existing applications.

Frequently Asked Questions (FAQ)

Q: Can UKW2A331MHD be used as a direct replacement for UFW2A331MHD?

A: Yes. The UKW2A331MHD is a parametric equivalent with identical capacitance, voltage rating, tolerance, lifetime rating, temperature range, ripple current specifications, and physical dimensions. Direct substitution is supported without circuit modification.

Q: Are there any differences in the physical package between these parts?

A: No. Both parts share identical package specifications: 0.492" diameter (12.50 mm), 0.984" maximum seated height (25.00 mm), 0.197" lead spacing (5.00 mm), and radial can configuration.

Q: Do both parts meet the same compliance standards?

A: Yes. Both UFW2A331MHD and UKW2A331MHD are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements.

Q: What is the significance of the "Not For New Designs" status?

A: This status indicates that both parts are legacy components. While they remain suitable for maintenance, repair, and existing production applications, they should not be selected for new product development. Alternative current-generation capacitors should be evaluated for new designs.

Q: Are the ripple current ratings identical?

A: Yes. Both parts are rated for 750 mA at 120 Hz and 1.125 A at 10 kHz, ensuring equivalent performance in audio and power supply applications.