UEP1C331MPD Equivalent & Substitute Parts

Part Overview

The UEP1C331MPD is a 330 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Organizations maintaining legacy systems or requiring exact form-factor compatibility may need to identify functionally equivalent alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

UEP1C331MPD

NichiconIn Stock: 842UEP1C331MPD Datasheet

Current PartRFQ

25NXA330MEFC10X16

RubyconIn Stock: 117825NXA330MEFC10X16 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the UEP1C331MPD is determined by the following criteria:

• Capacitance Match: 330 µF (exact match required)
• Tolerance Match: ±20% (exact match required)
• Mechanical Compatibility: Lead spacing 0.197" (5.00 mm), diameter 0.394" (10.00 mm), height 0.689" (17.50 mm), radial can package, through-hole mounting
• Voltage Rating: Minimum 16 V (equal or higher voltage ratings are acceptable for direct substitution)
• Operating Temperature Range: -55°C ~ 105°C (minimum requirement)
• Lifetime Specification: 1000 Hrs @ 105°C (minimum requirement)
• Compliance: ROHS3 Compliant

The substitute part 25NXA330MEFC10X16 (Rubycon NXA series) meets all mechanical and electrical criteria for direct substitution, with the exception of an elevated voltage rating (25 V vs. 16 V), which is acceptable in applications where the circuit design permits higher voltage tolerance.

Parameter Comparison

Engineering Selection Recommendations

The 25NXA330MEFC10X16 (Rubycon NXA series) is the qualified substitute for the UEP1C331MPD. Selection rationale:

• Compliance: Both parts are ROHS3 Compliant and REACH Unaffected, meeting regulatory requirements for equivalent applications.
• Product Status: The substitute part carries Active status, ensuring continued availability and manufacturing support, whereas the original part is Not For New Designs.
• Electrical Equivalence: Identical capacitance (330 µF), tolerance (±20%), and thermal lifetime (1000 Hrs @ 105°C) specifications ensure functional equivalence in the target application.
• Mechanical Compatibility: Identical lead spacing, package dimensions, and through-hole mounting configuration enable direct board-level substitution without layout modification.
• Voltage Margin: The 25 V rating of the substitute part provides additional voltage margin relative to the 16 V specification of the original part, which is acceptable for direct substitution in applications operating at or below 16 V.

Frequently Asked Questions (FAQ)

Q: Can the 25NXA330MEFC10X16 be used as a direct replacement for the UEP1C331MPD on existing PCBs?

A: Yes. Both parts share identical lead spacing (0.197" / 5.00 mm), package diameter (0.394" / 10.00 mm), height (0.689" / 17.50 mm), and through-hole radial can configuration. No PCB layout modification is required.

Q: Why does the substitute part have a higher voltage rating (25 V vs. 16 V)?

A: Higher voltage ratings in capacitors do not prevent substitution in applications designed for lower voltages. The 25 V rating of the substitute part provides additional voltage margin and is acceptable for circuits operating at 16 V or below.

Q: Are the ripple current specifications equivalent between the two parts?

A: Ripple current specifications differ between the parts. The original UEP1C331MPD specifies 265 mA @ 120 Hz and 397.5 mA @ 10 kHz. The substitute 25NXA330MEFC10X16 specifies 247 mA @ 120 Hz and 296.4 mA @ 10 kHz. Applications requiring specific ripple current performance should verify compatibility with the substitute part's ratings.

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

A: This designation indicates that Nichicon has discontinued active promotion and development of the UEP series. The substitute part's Active status ensures ongoing manufacturing support and availability for future procurement.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the UEP1C331MPD and 25NXA330MEFC10X16 are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.