Nichicon UCW1C331MNL1GS Equivalent & Substitute Parts

Part Overview

The Nichicon UCW1C331MNL1GS is a 330 µF, 16 V aluminum electrolytic capacitor in surface mount radial can package, rated for 7000 hours at 105°C. This component is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified when design requirements permit voltage rating upgrades, extended operating temperature ranges, or improved performance characteristics while maintaining mechanical and electrical compatibility with the original application footprint.

Substiute Parts

UCW1C331MNL1GS

NichiconIn Stock: 898UCW1C331MNL1GS Datasheet

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UCW1E331MNL1GS

NichiconIn Stock: 1525UCW1E331MNL1GS Datasheet

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16TRV330M8X10.5

RubyconIn Stock: 249516TRV330M8X10.5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Nichicon UCW1C331MNL1GS is determined by the following criteria:

Mechanical Compatibility: Surface mount land size must be 8.30 mm x 8.30 mm. Case diameter must be 8.00 mm. Height variation is acceptable provided the component does not exceed PCB clearance constraints.

Electrical Compatibility: Capacitance value must be 330 µF with ±20% tolerance. Voltage rating must be equal to or greater than 16 V. Polarization must remain polar.

Performance Parameters: Ripple current ratings at 120 Hz and 100 kHz, impedance characteristics, and lifetime ratings are secondary selection criteria when primary parameters match.

Compliance Requirements: RoHS3 compliance is maintained across all substitute options. MSL rating of 1 (Unlimited) is consistent.

Parameter Comparison

Engineering Selection Recommendations

UCW1E331MNL1GS (Nichicon, 25 V Rating): This part is a direct upgrade option within the same manufacturer series. The increased voltage rating from 16 V to 25 V provides additional design margin without altering mechanical footprint or electrical performance characteristics. Both parts maintain identical capacitance, tolerance, lifetime rating, and operating temperature range. Selection is appropriate when circuit design permits higher voltage rating utilization or when enhanced reliability margin is required.

16TRV330M8X10.5 (Rubycon, 16 V Rating): This part maintains the original 16 V voltage specification while offering extended lifetime (8000 hours versus 7000 hours at 105°C) and lower impedance (150 mOhms versus 220 mOhms). Operating temperature range extends to -40°C minimum. Case height increases by 0.5 mm (10.50 mm versus 10.00 mm), requiring verification of available PCB clearance. Surface mount land size remains compatible. Selection is appropriate when improved thermal performance or extended low-temperature operation is required and mechanical clearance permits the height increase.

All substitute parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring regulatory and moisture sensitivity consistency with the original component.

Frequently Asked Questions (FAQ)

Q: Can UCW1E331MNL1GS be used as a direct replacement for UCW1C331MNL1GS?

A: Yes. Both parts are from the Nichicon UCW series with identical capacitance (330 µF), tolerance (±20%), case dimensions (8.00 mm diameter, 10.00 mm height), and surface mount land size (8.30 mm x 8.30 mm). The voltage rating increase from 16 V to 25 V does not prevent substitution and provides additional design margin.

Q: What is the primary difference between the Nichicon and Rubycon substitute options?

A: The Rubycon 16TRV330M8X10.5 maintains the original 16 V voltage rating but offers improved performance through lower impedance (150 mOhms versus 220 mOhms), extended lifetime (8000 hours versus 7000 hours at 105°C), and wider operating temperature range (-40°C to 105°C versus -25°C to 105°C). Case height increases by 0.5 mm, requiring PCB clearance verification.

Q: Are there mechanical compatibility concerns with the Rubycon substitute?

A: The Rubycon 16TRV330M8X10.5 has a case height of 10.50 mm compared to the original 10.00 mm. Surface mount land size remains identical at 8.30 mm x 8.30 mm. PCB layout clearance above the component must be verified to accommodate the additional 0.5 mm height.

Q: Do all substitute parts maintain the same compliance certifications?

A: Yes. All parts listed are ROHS3 compliant with MSL rating of 1 (Unlimited). Regulatory and moisture sensitivity requirements are consistent across the main part and all substitutes.

Q: What determines whether a part can substitute for the UCW1C331MNL1GS?

A: Primary substitution criteria are: capacitance value of 330 µF, tolerance of ±20%, voltage rating equal to or greater than 16 V, polar polarization, surface mount radial can package, case diameter of 8.00 mm, and surface mount land size of 8.30 mm x 8.30 mm. Secondary criteria include ripple current ratings, impedance, and lifetime characteristics.