UKA1E331MPD Equivalent & Substitute Parts

Part Overview

The UKA1E331MPD is a 330 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 2000 hours at 105°C and is designed for audio applications. The part carries a "Not For New Designs" status, making identification of suitable alternatives essential for ongoing production and maintenance applications.

Substiute Parts

UKA1E331MPD

NichiconIn Stock: 4749UKA1E331MPD Datasheet

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UPA1E331MPD

NichiconIn Stock: 1006UPA1E331MPD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the UKA1E331MPD is determined by strict equivalence across the following parameters:

• Capacitance value: 330 µF (exact match required)
• Voltage rating: 25 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Package configuration: Radial, Can (exact match required)
• Physical dimensions: 0.315" diameter × 0.512" height (exact match required)
• Lead spacing: 0.138" (4.60 mm) (exact match required)
• Mounting type: Through Hole (exact match required)

The UPA1E331MPD qualifies as a direct substitute based on full alignment with all critical electrical and mechanical parameters. Secondary performance differences, such as lifetime rating and ripple current specifications, do not disqualify substitution when primary parameters match exactly.

Parameter Comparison

Engineering Selection Recommendations

The UPA1E331MPD is a direct electrical and mechanical equivalent to the UKA1E331MPD. Both components are manufactured by Nichicon, maintain identical capacitance, voltage, tolerance, and physical dimensions, and are ROHS3 compliant. The UPA1E331MPD carries Active product status, whereas the UKA1E331MPD is designated Not For New Designs. Selection between these parts should be based on availability and application lifecycle requirements. The UPA1E331MPD offers extended lifetime rating (3000 hours versus 2000 hours at 105°C) and higher ripple current capability, making it suitable for applications requiring sustained performance over extended operational periods.

Frequently Asked Questions (FAQ)

Q: Can the UPA1E331MPD be used as a direct replacement for the UKA1E331MPD?

A: Yes. Both parts share identical electrical specifications (330 µF, 25 V, ±20% tolerance), physical dimensions (0.315" diameter, 0.512" height, 0.138" lead spacing), and mounting configuration (Through Hole, Radial Can package). Mechanical and electrical compatibility is complete.

Q: What is the significance of the "Not For New Designs" status on the UKA1E331MPD?

A: This designation indicates the part is in mature or end-of-life phase. The UPA1E331MPD, with Active status, is the recommended choice for new applications and ongoing production where component continuity is required.

Q: Are there differences in performance between these two parts?

A: Both parts meet the same electrical requirements for capacitance and voltage. The UPA1E331MPD provides higher ripple current capacity (409.5 mA @ 120 Hz versus 290 mA) and extended lifetime (3000 hours versus 2000 hours at 105°C). These differences do not affect substitution eligibility but may provide performance advantages in demanding applications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the UKA1E331MPD and UPA1E331MPD are ROHS3 compliant and carry the same ECCN and HTSUS classifications.

Q: Are there any package or footprint considerations when substituting these parts?

A: No. Both components use identical Through Hole mounting with Radial Can packaging, identical lead spacing (0.138"), and identical physical dimensions. PCB layout and assembly processes require no modification.