UVY2D331MHD Equivalent & Substitute Parts

Part Overview

The UVY2D331MHD is a 330 µF, 200 V aluminum electrolytic capacitor in radial can package manufactured by Nichicon. This component is rated for 2000 hours at 105°C and is classified as not for new designs. Due to its obsolete status and limited operational lifetime specification, equivalent and substitute parts with improved reliability characteristics or active product status are available to support ongoing maintenance and design requirements.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	200 V
Tolerance	±20%
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-40°C to 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.295" (7.50 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UVY2D331MHD is determined by the following electrical and mechanical parameters:

Electrical Compatibility Requirements:

Capacitance: 330 µF (exact match required)
Voltage Rating: 200 V minimum (250 V acceptable for voltage-upgraded substitutes)
Tolerance: ±20% (standard for this category)
Operating Temperature: -40°C to 105°C (minimum requirement)
Polarization: Polar (required)

Mechanical Compatibility Requirements:

Lead Spacing: 0.295" (7.50 mm) (required for PCB fit)
Mounting Type: Through Hole (required)
Package Type: Radial, Can (required)

Substitute Categories:

Direct Parametric Equivalents (identical electrical and mechanical specifications): UAS2D331MHD
Enhanced Lifetime Substitutes (same voltage, improved reliability): UCS2D331MHD, UCY2D331MHD, UCY2D331MHD6
Voltage-Upgraded Substitutes (higher voltage rating, improved performance): UCY2E331MHD9
Cross-Manufacturer Equivalents (Chemi-Con alternatives): EKMQ201ELL331MM40S, EKXG201ELL331MMP1S, EKXJ251ELL331MM40S
Dimensional Variants (different can diameter, same electrical specs): LDQ2D331MERYGA, UPW2D331MRD

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ 105°C	Lead Spacing	Can Diameter	Height (Max)	Product Status	RoHS
UVY2D331MHD	Nichicon	330 µF	200 V	2000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.654" (42.00 mm)	Not For New Designs	ROHS3
UAS2D331MHD	Nichicon	330 µF	200 V	2000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.654" (42.00 mm)	Active	ROHS3
UCS2D331MHD	Nichicon	330 µF	200 V	10000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.457" (37.00 mm)	Active	ROHS3
UCY2D331MHD	Nichicon	330 µF	200 V	12000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	1.634" (41.50 mm)	Active	ROHS3
UCY2D331MHD6	Nichicon	330 µF	200 V	12000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.299" (33.00 mm)	Active	ROHS3
UCY2E331MHD9	Nichicon	330 µF	250 V	12000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.634" (41.50 mm)	Active	ROHS3
UPW2D331MRD	Nichicon	330 µF	200 V	8000 Hrs	0.394" (10.00 mm)	0.866" (22.00 mm)	1.575" (40.00 mm)	Obsolete	ROHS3
LDQ2D331MERYGA	Nichicon	330 µF	200 V	2000 Hrs	0.295" (7.50 mm)	0.787" (20.00 mm)	0.787" (20.00 mm)	Active	ROHS3
EKMQ201ELL331MM40S	Chemi-Con	330 µF	200 V	2000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.634" (41.50 mm)	Active	ROHS3
EKXG201ELL331MMP1S	Chemi-Con	330 µF	200 V	10000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.398" (35.50 mm)	Active	ROHS3
EKXJ251ELL331MM40S	Chemi-Con	330 µF	250 V	12000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.634" (41.50 mm)	Active	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): UAS2D331MHD is the primary direct parametric equivalent. It maintains identical electrical and mechanical specifications while offering active product status, ensuring continued availability and supply chain stability.

For Enhanced Reliability (Improved Lifetime): UCY2D331MHD6 and UCY2D331MHD offer 12000-hour lifetime ratings at 105°C, representing a six-fold improvement over the original 2000-hour specification. Both maintain 200 V rating and 0.295" lead spacing. UCY2D331MHD6 provides a more compact height (1.299") compared to the original (1.654"), while UCY2D331MHD uses a smaller diameter can (0.630" vs. 0.709"). UCS2D331MHD provides an intermediate option with 10000-hour lifetime.

For Voltage Margin Enhancement: UCY2E331MHD9 upgrades the voltage rating to 250 V while maintaining 330 µF capacitance and improving lifetime to 12000 hours. This part is suitable for applications requiring additional voltage headroom. EKXJ251ELL331MM40S (Chemi-Con) provides an equivalent 250 V upgrade with AEC-Q200 automotive qualification.

For Cross-Manufacturer Sourcing: EKMQ201ELL331MM40S (Chemi-Con) provides a direct equivalent at 200 V, 2000-hour lifetime. EKXG201ELL331MMP1S offers enhanced 10000-hour lifetime at 200 V. Both maintain identical lead spacing and can diameter.

For Dimensional Constraints: LDQ2D331MERYGA accommodates applications with different PCB layout requirements, featuring a larger diameter can (0.787") and reduced height (0.787"). UPW2D331MRD is obsolete and should not be selected for new applications despite availability.

Frequently Asked Questions (FAQ)

Q: Can I use UCY2E331MHD9 (250 V) as a direct replacement for UVY2D331MHD (200 V)? A: Yes. The 250 V rating is a voltage upgrade that maintains backward compatibility. The higher voltage rating provides additional safety margin in the circuit while preserving the 330 µF capacitance and through-hole mounting configuration.

Q: What is the difference between UCY2D331MHD and UCY2D331MHD6? A: Both offer identical 330 µF, 200 V specifications and 12000-hour lifetime. The primary difference is physical: UCY2D331MHD uses a 0.630" diameter can with 1.634" height, while UCY2D331MHD6 uses a 0.709" diameter can with 1.299" height. Selection depends on available PCB space.

Q: Why does UPW2D331MRD appear in the substitute list if it is obsolete? A: UPW2D331MRD is listed as a cross-reference due to its historical substitution relationships. However, it should not be selected for new applications or ongoing designs. Active alternatives such as UCS2D331MHD or UCY2D331MHD are recommended.

Q: Are Chemi-Con parts (EKMQ, EKXG, EKXJ series) compatible with Nichicon UVY2D331MHD? A: Yes, provided electrical and mechanical parameters match. EKMQ201ELL331MM40S and EKXG201ELL331MMP1S maintain identical lead spacing (0.295"), can diameter (0.709"), and mounting type (through-hole radial). Cross-manufacturer substitution is valid when these parameters align.

Q: What is the impact of selecting a part with extended lifetime (12000 hours vs. 2000 hours)? A: Extended lifetime ratings indicate improved capacitor construction and materials, resulting in lower degradation rates and longer operational reliability. For applications requiring continuous operation or extended service intervals, selecting 10000-hour or 12000-hour rated parts reduces failure risk and maintenance frequency.

Q: Does lead spacing affect PCB compatibility? A: Yes. The standard lead spacing for this category is 0.295" (7.50 mm). UPW2D331MRD uses 0.394" (10.00 mm) spacing and requires different PCB hole positioning. Verify PCB layout before selecting dimensional variants.

Q: Are all listed parts ROHS3 compliant? A: Yes. All substitute parts listed maintain ROHS3 compliance, ensuring compatibility with environmental and regulatory requirements.

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