Nichicon UPB1C331MPD 330µF 16V Radial Aluminum Electrolytic Capacitor Equivalent & Substitute Parts

Part Overview

The Nichicon UPB1C331MPD is a 330µF, 16V radial aluminum electrolytic capacitor rated for 5000 hours at 105°C. This part carries an Obsolete product status, making it necessary to identify equivalent and substitute components for ongoing applications. The UPB series has been discontinued, requiring engineers to select from active or not-for-new-designs alternatives that maintain electrical and mechanical compatibility within the specified parameter tolerances.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Operating Temperature Range	-40°C to 105°C
Lifetime @ 105°C	5000 Hrs
Lead Spacing	0.138" (4.60mm)
Case Diameter	0.315" (8.00mm)
Height (Seated Max)	0.512" (13.00mm)
Mounting Type	Through Hole
Package Type	Radial, Can
Ripple Current @ 120 Hz	195 mA
Ripple Current @ 100 kHz	254.6 mA

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following criteria:

Primary Compatibility Parameters:

Capacitance: 330 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 16 V minimum (equal or higher acceptable)
Lead Spacing: 0.138" (4.60mm) or 0.197" (5.00mm) for mechanical fit variations
Case Diameter: 0.315" (8.00mm) or 0.394" (10.00mm) for dimensional alternatives
Height: 0.512" (13.00mm) or 0.453" (11.50mm) or 0.689" (17.50mm) for board clearance considerations
Mounting Type: Through Hole (required)
Package Type: Radial, Can (required)
Operating Temperature: -40°C to 105°C minimum (exact match required)
Polarization: Polar (required)

Secondary Performance Parameters:

Lifetime @ 105°C: 5000 hours or greater acceptable
Ripple Current Ratings: Must meet or exceed original specifications

Substitutes are grouped into three categories: Upgrade (higher voltage rating), Similar (same voltage, different series), and Direct (same voltage, different manufacturer).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Case Dia	Height	Ripple @ 120Hz	Product Status
UPB1C331MPD	Nichicon	330 µF	16 V	±20%	5000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	195 mA	Obsolete
UHV1E331MPD	Nichicon	330 µF	25 V	±20%	6000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	495 mA	Not For New Designs
UHD1C331MPD	Nichicon	330 µF	16 V	±20%	3000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	532 mA	Not For New Designs
UHE1C331MPD	Nichicon	330 µF	16 V	±20%	7000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.453" (11.50mm)	448 mA	Not For New Designs
UHV1C331MPD	Nichicon	330 µF	16 V	±20%	6000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	415 mA	Not For New Designs
UKL1C331MPDANA	Nichicon	330 µF	16 V	±20%	1000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.689" (17.50mm)	420 mA	Not For New Designs
16YXF330MEFC8X11.5	Rubycon	330 µF	16 V	±20%	7000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	280 mA	Not For New Designs
337KBM016M	Cornell Dubilier / Illinois Capacitor	330 µF	16 V	±20%	7000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	320 mA	Active
25YXJ330M8X11.5	Rubycon	330 µF	25 V	±20%	7000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	448 mA	Active
25ZLH330MEFC8X11.5	Rubycon	330 µF	25 V	±20%	8000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	519.75 mA	Active
25ZLJ330M8X11.5	Rubycon	330 µF	25 V	±20%	9000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	660 mA	Active

Engineering Selection Recommendations

Same Voltage (16V) Direct Substitutes with Identical Footprint:

The Cornell Dubilier 337KBM016M is the primary recommendation for direct replacement. This part maintains identical electrical specifications (330µF, 16V, ±20%), identical mechanical dimensions (0.315" diameter, 0.512" height, 0.138" lead spacing), and carries Active product status. The 7000-hour lifetime at 105°C exceeds the original 5000-hour specification, providing improved reliability. RoHS3 compliance and REACH Unaffected status align with modern manufacturing standards.

Nichicon Same-Voltage Alternatives:

The UHV1C331MPD and UHE1C331MPD maintain identical footprints and electrical parameters. UHE1C331MPD offers 7000-hour lifetime but features a reduced height of 0.453" (11.50mm), suitable for space-constrained applications. UHV1C331MPD provides 6000-hour lifetime with standard 0.512" height. Both carry Not For New Designs status.

Rubycon Same-Voltage Alternative:

The 16YXF330MEFC8X11.5 provides identical footprint compatibility with 7000-hour lifetime. Not For New Designs status applies.

Upgraded Voltage (25V) Substitutes:

For applications permitting higher voltage ratings, the Rubycon 25ZLJ330M8X11.5 (Active status, 9000-hour lifetime) and 25ZLH330MEFC8X11.5 (Active status, 8000-hour lifetime) offer superior reliability and extended component availability. Both maintain identical footprints. The Nichicon UHV1E331MPD (Not For New Designs, 6000-hour lifetime) provides a Nichicon alternative at 25V.

Dimensional Variant:

The Nichicon UKL1C331MPDANA accommodates applications with different PCB layout constraints, featuring larger dimensions (0.394" diameter, 0.689" height, 0.197" lead spacing). However, 1000-hour lifetime at 105°C is significantly reduced and unsuitable for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can I use a 25V rated capacitor in place of the 16V UPB1C331MPD?

A: Yes. Higher voltage ratings are electrically compatible in circuits designed for lower voltages. The 25V substitutes (25ZLJ330M8X11.5, 25ZLH330MEFC8X11.5, UHV1E331MPD) maintain identical footprints and capacitance values. Verify PCB layout accommodates the component without interference.

Q: What is the difference between the Nichicon and Rubycon substitutes?

A: Both manufacturers produce 330µF, 16V radial aluminum electrolytic capacitors with identical electrical specifications and footprints. Selection depends on supply chain availability, product status (Active vs. Not For New Designs), and lifetime ratings. The Cornell Dubilier 337KBM016M is the only Active-status part with identical voltage rating.

Q: Does the UHE1C331MPD fit in the same PCB footprint?

A: The UHE1C331MPD has a reduced height of 0.453" (11.50mm) compared to the original 0.512" (13.00mm). Lead spacing and case diameter remain identical. Verify PCB clearance above the component before substitution.

Q: Why is the UKL1C331MPDANA not recommended as a primary substitute?

A: The UKL1C331MPDANA features significantly larger dimensions (0.394" diameter, 0.689" height, 0.197" lead spacing) and reduced lifetime (1000 hours at 105°C). Use only when PCB layout specifically accommodates these dimensions and reduced lifetime is acceptable.

Q: What compliance certifications apply to these substitutes?

A: The Cornell Dubilier 337KBM016M and Rubycon parts (16YXF330MEFC8X11.5, 25YXJ330M8X11.5, 25ZLH330MEFC8X11.5, 25ZLJ330M8X11.5) carry RoHS3 compliance. REACH status varies: Unaffected for Cornell Dubilier and Rubycon parts; Affected for Nichicon UHV and UHE series. Verify compliance requirements for your application.

Q: Which substitute offers the longest operational lifetime?

A: The Rubycon 25ZLJ330M8X11.5 provides 9000 hours at 105°C with Active product status, representing the highest reliability option. The 25ZLH330MEFC8X11.5 offers 8000 hours at 105°C, also with Active status.

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