Equivalent & Substitute Parts for ULD1A331MPD1TA

Part Overview

The ULD1A331MPD1TA is a 330 µF, 10 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is rated for 10,000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part carries a "Not For New Designs" status, making identification of equivalent alternatives essential for ongoing production support and component sourcing.

Substiute Parts

ULD1A331MPD1TA

NichiconIn Stock: 1061ULD1A331MPD1TA Datasheet

Current PartRFQ

ULD1A331MPD1TD

NichiconIn Stock: 2845ULD1A331MPD1TD Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ULD1A331MPD1TA is determined by strict equivalence across the following parameters:

• Capacitance value: 330 µF (exact match required)
• Voltage rating: 10 V (exact match required)
• Tolerance: ±20% (exact match required)
• Thermal performance: 10000 Hrs @ 105°C (exact match required)
• Physical form factor: Radial, Can configuration with 0.315" diameter and 0.531" maximum height
• Lead spacing: 0.138" (4.60mm) for PCB compatibility
• Mounting technology: Through-hole only
• Ripple current specifications: 231 mA @ 120 Hz and 330 mA @ 100 kHz

The ULD1A331MPD1TD meets all these criteria and is classified as a parametric equivalent within the Nichicon ULD series.

Parameter Comparison

Engineering Selection Recommendations

Both the ULD1A331MPD1TA and ULD1A331MPD1TD are classified as "Not For New Designs" and carry identical electrical, thermal, and mechanical specifications. Selection between these parts is based on inventory availability and supply chain considerations rather than technical differentiation.

The ULD1A331MPD1TD currently maintains higher inventory levels (2826 pcs) compared to the ULD1A331MPD1TA (958 pcs), making it the preferred choice for production continuity. Both parts maintain ROHS3 compliance and REACH compliance status, satisfying regulatory requirements for current manufacturing standards.

Frequently Asked Questions (FAQ)

Q: Can the ULD1A331MPD1TD be used as a direct replacement for the ULD1A331MPD1TA?

A: Yes. Both parts are parametric equivalents with identical capacitance, voltage rating, tolerance, thermal performance, physical dimensions, and lead spacing. Direct substitution is electrically and mechanically compatible.

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

A: No. Both parts share identical package specifications: 0.315" diameter, 0.531" maximum seated height, and 0.138" lead spacing. PCB footprints and mounting requirements are identical.

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

A: This designation indicates that Nichicon has discontinued these parts for new product development. However, both parts remain available for existing production support and legacy system maintenance. Equivalent alternatives from current product lines should be evaluated for new designs.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the ULD1A331MPD1TA and ULD1A331MPD1TD are ROHS3 compliant and REACH affected, meeting current environmental and regulatory requirements.

Q: Is there a difference in ripple current handling between these parts?

A: No. Both parts are rated for identical ripple current specifications: 231 mA at 120 Hz and 330 mA at 100 kHz.