UHC0J331MPD Equivalent & Substitute Parts

Part Overview

The Nichicon UHC0J331MPD is a 330 µF, 6.3 V aluminum electrolytic capacitor in radial, can package with a rated lifetime of 2000 hours at 105°C. This component is classified as obsolete and designed for high-temperature reflow applications. Due to its obsolete status, equivalent and substitute parts with improved specifications or extended availability are necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	6.3 V
Tolerance	±20%
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar
Package Type	Radial, Can
Lead Spacing	0.138" (4.60mm)
Diameter	0.315" (8.00mm)
Height	0.512" (13.00mm)
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution of the UHC0J331MPD is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Capacitance: 330 µF (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.138" (4.60mm) (exact match required)
Physical Dimensions: 0.315" Dia × 0.512" Height (exact match required)
Mounting Type: Through Hole (exact match required)

Flexible Parameters (may vary):

Voltage Rating: May be equal or higher than 6.3 V
Lifetime @ 105°C: May be equal or higher than 2000 Hrs
Operating Temperature Range: May be equal or wider than -40°C ~ 105°C
Ripple Current: May be equal or higher
Impedance: May be equal or lower

Substitute parts are grouped into two categories:

Upgrade Substitutes: Parts with identical mechanical and electrical core specifications but improved performance characteristics (higher voltage rating, extended lifetime, or lower impedance).

Similar Parts: Parts with identical capacitance and voltage but different physical dimensions or lead spacing, suitable only when PCB layout permits dimensional variation.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Operating Temp	Lead Spacing	Diameter	Height	Product Status
UHC0J331MPD	Nichicon	330 µF	6.3 V	±20%	2000 Hrs	-40°C ~ 105°C	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Obsolete
UHD1C331MPD	Nichicon	330 µF	16 V	±20%	3000 Hrs	-40°C ~ 105°C	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Not For New Designs
UHV1C331MPD	Nichicon	330 µF	16 V	±20%	6000 Hrs	-40°C ~ 105°C	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Not For New Designs
UKA1A331MPD	Nichicon	330 µF	10 V	±20%	2000 Hrs	-55°C ~ 105°C	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Not For New Designs
UKA1C331MPD	Nichicon	330 µF	16 V	±20%	2000 Hrs	-55°C ~ 105°C	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Not For New Designs
UPA1C331MPD	Nichicon	330 µF	16 V	±20%	3000 Hrs	-55°C ~ 105°C	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Active
UPM1A331MPD	Nichicon	330 µF	10 V	±20%	3000 Hrs	-55°C ~ 105°C	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Not For New Designs
UPS1C331MPD	Nichicon	330 µF	16 V	±20%	2000 Hrs	-55°C ~ 105°C	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Not For New Designs
UHD0J331MED	Nichicon	330 µF	6.3 V	±20%	2000 Hrs	-40°C ~ 105°C	0.098" (2.50mm)	0.248" (6.30mm)	0.492" (12.50mm)	Obsolete
UHE0J331MED	Nichicon	330 µF	6.3 V	±20%	4000 Hrs	-40°C ~ 105°C	0.098" (2.50mm)	0.248" (6.30mm)	0.433" (11.00mm)	Obsolete
UHV1E331MPD	Nichicon	330 µF	25 V	±20%	6000 Hrs	-40°C ~ 105°C	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Not For New Designs

Engineering Selection Recommendations

For Direct PCB Replacement (Identical Footprint):

Select from upgrade substitutes with matching lead spacing of 0.138" (4.60mm) and physical dimensions of 0.315" Dia × 0.512" Height:

UPA1C331MPD (Nichicon UPA series, 330 µF, 16 V, 3000 Hrs @ 105°C): Active product status with RoHS3 compliance. Suitable for new designs requiring extended lifetime and higher voltage margin.
UHV1C331MPD (Nichicon UHV series, 330 µF, 16 V, 6000 Hrs @ 105°C): Extended lifetime rating with RoHS3 compliance. Appropriate for applications requiring maximum operational reliability.
UHD1C331MPD (Nichicon UHD series, 330 µF, 16 V, 3000 Hrs @ 105°C): Intermediate option with improved voltage rating and lifetime.

For Applications Permitting Dimensional Variation:

UHE0J331MED (Nichicon UHE series, 330 µF, 6.3 V, 4000 Hrs @ 105°C): Smaller footprint (0.248" Dia × 0.433" Height) with extended lifetime. Requires PCB layout verification.
UHD0J331MED (Nichicon UHD series, 330 µF, 6.3 V, 2000 Hrs @ 105°C): Smaller footprint (0.248" Dia × 0.492" Height) with identical voltage and lifetime specifications.

Compliance Considerations:

All recommended substitutes maintain RoHS3 compliance and EAR99 export classification. UPA1C331MPD is the only active product in the substitute list, making it the preferred choice for new design implementations.

Frequently Asked Questions (FAQ)

Q: Can UPA1C331MPD replace UHC0J331MPD directly on the PCB?

A: Yes. UPA1C331MPD has identical lead spacing (0.138" / 4.60mm) and physical dimensions (0.315" Dia × 0.512" Height). The higher voltage rating (16 V vs. 6.3 V) and extended lifetime (3000 Hrs vs. 2000 Hrs @ 105°C) provide improved performance margins without requiring PCB modifications.

Q: What is the difference between upgrade substitutes and similar parts?

A: Upgrade substitutes maintain identical mechanical footprints and lead spacing, enabling direct PCB replacement. Similar parts have different physical dimensions or lead spacing and require PCB layout verification before implementation.

Q: Why is UPA1C331MPD recommended over other 16 V alternatives?

A: UPA1C331MPD holds active product status, ensuring long-term availability and supply chain continuity. Other 16 V alternatives (UHD1C331MPD, UHV1C331MPD, UKA1C331MPD, UPS1C331MPD) are classified as "Not For New Designs," limiting their suitability for new development.

Q: Can I use a 25 V rated capacitor (UHV1E331MPD) in place of the 6.3 V original?

A: Yes, electrically. UHV1E331MPD has identical mechanical dimensions and lead spacing. However, the higher voltage rating increases physical size considerations and cost. Use only if circuit design specifically requires 25 V rating or if 16 V alternatives are unavailable.

Q: Are all substitute parts RoHS3 compliant?

A: All listed substitutes are RoHS3 compliant. The original UHC0J331MPD is REACH Unaffected, while most substitutes are REACH Affected. Verify compliance requirements for your specific application and regulatory jurisdiction.

Q: What is the impact of different impedance values on circuit performance?

A: Impedance values are provided for reference but do not affect direct substitution eligibility. Lower impedance values (e.g., UHV1C331MPD at 59 mOhms vs. UPS1C331MPD at 280 mOhms) indicate better high-frequency ripple current handling. Select based on circuit ripple current requirements and operating frequency.

Q: Can I substitute UHE0J331MED or UHD0J331MED if space is constrained?

A: Only if PCB layout permits the smaller footprint. UHE0J331MED (0.248" Dia × 0.433" Height) and UHD0J331MED (0.248" Dia × 0.492" Height) have different lead spacing (0.098" / 2.50mm vs. 0.138" / 4.60mm). Verify pad spacing and trace routing compatibility before selection.

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