UHD1C331MPD Equivalent & Substitute Parts

Part Overview

The UHD1C331MPD is a 330 µF, 16 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in Nichicon's product portfolio. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 3000 hours at 105°C, making it suitable for general-purpose applications requiring stable capacitance and moderate ripple current handling.

Identifying equivalent and substitute parts is necessary due to the product's discontinued status for new designs. Alternative components with matching or superior electrical characteristics and compatible physical dimensions ensure design continuity and supply chain flexibility.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ 105°C	3000 Hrs
Operating Temperature Range	-40°C ~ 105°C
Ripple Current @ 120 Hz	532 mA
Ripple Current @ 100 kHz	760 mA
Impedance	72 mOhms
Lead Spacing	0.138" (4.60 mm)
Case Diameter	0.315" (8.00 mm)
Height	0.512" (13.00 mm)
Mounting Type	Through Hole Radial
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution relationships are established based on strict electrical and mechanical compatibility criteria:

Parametric Equivalents maintain identical capacitance (330 µF), voltage rating (16 V), tolerance (±20%), physical dimensions (8.00 mm diameter, 13.00 mm height, 4.60 mm lead spacing), and mounting configuration. These parts are direct replacements with no circuit redesign required.

Voltage Upgrades increase the rated voltage from 16 V to 25 V while maintaining 330 µF capacitance, ±20% tolerance, identical physical dimensions, and through-hole radial mounting. These substitutions are valid in applications where the original 16 V rating provides adequate margin, as higher voltage-rated capacitors operate at lower stress levels.

Series Variants represent different product lines from the same or alternative manufacturers with matching capacitance, voltage, tolerance, and physical form factor. Differences in lifetime ratings (3000 to 8000 hours at 105°C) and ripple current specifications reflect design variations within compatible electrical envelopes.

Key Parameters for Substitution:

Capacitance: 330 µF (fixed)
Voltage Rating: 16 V minimum (25 V acceptable as upgrade)
Tolerance: ±20%
Case Diameter: 0.315" (8.00 mm)
Height: 0.512" (13.00 mm) or 0.453" (11.50 mm) for UHE series
Lead Spacing: 0.138" (4.60 mm)
Mounting: Through Hole Radial
Polarization: Polar

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ 105°C	Impedance	Ripple Current @ 120 Hz	Product Status
UHD1C331MPD	Nichicon	330 µF	16 V	3000 Hrs	72 mOhms	532 mA	Not For New Designs
UHD1C331MPD1AA	Nichicon	330 µF	16 V	3000 Hrs	—	532 mA	Active
UPA1C331MPD	Nichicon	330 µF	16 V	3000 Hrs	90 mOhms	409.5 mA	Active
UHE1C331MPD	Nichicon	330 µF	16 V	7000 Hrs	130 mOhms	448 mA	Not For New Designs
UHV1C331MPD	Nichicon	330 µF	16 V	6000 Hrs	59 mOhms	415 mA	Not For New Designs
UHV1E331MPD	Nichicon	330 µF	25 V	6000 Hrs	59 mOhms	495 mA	Not For New Designs
UPA1E331MPD	Nichicon	330 µF	25 V	3000 Hrs	90 mOhms	409.5 mA	Active
16YXF330MEFC8X11.5	Rubycon	330 µF	16 V	7000 Hrs	250 mOhms	280 mA	Not For New Designs
25YXG330MEFC8X11.5	Rubycon	330 µF	25 V	4000 Hrs	—	—	Not For New Designs
25YXJ330M8X11.5	Rubycon	330 µF	25 V	7000 Hrs	130 mOhms	448 mA	Active
25ZLH330MEFC8X11.5	Rubycon	330 µF	25 V	8000 Hrs	56 mOhms	519.75 mA	Active

Engineering Selection Recommendations

Direct Replacement (Parametric Equivalent): UHD1C331MPD1AA is the primary equivalent, maintaining identical electrical specifications and physical form factor. This part carries Active product status, ensuring long-term availability and supply continuity.

Nichicon Active Alternatives: UPA1C331MPD and UPA1E331MPD (16 V and 25 V variants respectively) are Active products from Nichicon's UPA series. Both maintain the required 330 µF capacitance, ±20% tolerance, and compatible physical dimensions. The UPA series operates across an extended temperature range (-55°C to 105°C) compared to the original -40°C to 105°C specification, providing additional thermal margin. These parts are suitable for new designs.

Voltage-Upgraded Alternatives: UHV1E331MPD and UPA1E331MPD offer 25 V ratings while maintaining 330 µF capacitance and compatible packaging. These upgrades are applicable in circuits where the 16 V specification includes design margin. The UHV1E331MPD provides 6000-hour lifetime at 105°C with lower impedance (59 mOhms) than the original part.

Rubycon Alternatives: 25YXJ330M8X11.5 and 25ZLH330MEFC8X11.5 are Active Rubycon products rated at 25 V with 330 µF capacitance. Both maintain identical physical dimensions and through-hole radial mounting. The 25ZLH330MEFC8X11.5 offers the highest lifetime rating (8000 hours at 105°C) and lowest impedance (56 mOhms) among all listed alternatives, with ripple current capability (519.75 mA @ 120 Hz) exceeding the original specification.

Compliance Considerations: All listed alternatives maintain ROHS3 compliance. Rubycon parts are REACH Unaffected, while Nichicon parts are REACH Affected. Selection should account for supply chain compliance requirements specific to the application region.

Frequently Asked Questions (FAQ)

Q: Can UHD1C331MPD1AA be used as a direct replacement? A: Yes. UHD1C331MPD1AA is a parametric equivalent with identical 330 µF capacitance, 16 V voltage rating, ±20% tolerance, and physical dimensions (8.00 mm diameter, 13.00 mm height, 4.60 mm lead spacing). It carries Active product status, ensuring availability.

Q: What is the difference between 16 V and 25 V rated alternatives? A: 25 V rated parts (UHV1E331MPD, UPA1E331MPD, 25YXJ330M8X11.5, 25ZLH330MEFC8X11.5) maintain 330 µF capacitance and compatible physical form factors. These are valid substitutes in applications where the circuit design accommodates higher voltage ratings. Higher voltage ratings typically result in lower operating stress and extended component life.

Q: Are Rubycon parts compatible with Nichicon designs? A: Yes, provided electrical specifications and physical dimensions match. The Rubycon alternatives listed (16YXF330MEFC8X11.5, 25YXG330MEFC8X11.5, 25YXJ330M8X11.5, 25ZLH330MEFC8X11.5) maintain 330 µF capacitance, compatible voltage ratings, identical lead spacing (4.60 mm), case diameter (8.00 mm), and height (11.50 mm or 13.00 mm). Verify impedance and ripple current specifications against circuit requirements.

Q: Which alternative offers the best long-term reliability? A: 25ZLH330MEFC8X11.5 provides the highest lifetime rating (8000 hours at 105°C) and lowest impedance (56 mOhms) among all alternatives. This part is Active and suitable for new designs requiring extended operational life.

Q: What is the impact of impedance differences on circuit performance? A: Lower impedance reduces voltage ripple and heat generation at specified ripple currents. The original UHD1C331MPD has 72 mOhms impedance. Alternatives range from 56 mOhms (25ZLH330MEFC8X11.5) to 250 mOhms (16YXF330MEFC8X11.5). Select based on circuit ripple current requirements and thermal constraints.

Q: Can parts with different lifetimes be substituted? A: Yes, if the application does not require the original 3000-hour lifetime specification. Parts with longer lifetimes (6000 to 8000 hours at 105°C) provide additional margin and are suitable substitutes. Parts with shorter lifetimes should be evaluated against specific application duty cycles.

Q: Are there physical dimension constraints for PCB layout? A: All listed alternatives maintain the same lead spacing (0.138", 4.60 mm) and case diameter (0.315", 8.00 mm). Height varies between 0.453" (11.50 mm) for UHE1C331MPD and 0.512" (13.00 mm) for most others. Verify PCB clearance if height-constrained applications are involved.

Q: What compliance certifications apply to these parts? A: All parts are ROHS3 compliant. Nichicon parts are REACH Affected; Rubycon parts are REACH Unaffected. Verify compliance requirements for the target application region before final selection.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message