Nichicon UCS2V330MHD Equivalent & Substitute Parts

Part Overview

The Nichicon UCS2V330MHD is a 33 µF, 350 V aluminum electrolytic capacitor in radial, can package configuration. This component is rated for 10,000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, design upgrades, or application-specific performance requirements.

Key Parameters

Parameter	Value
Capacitance	33 µF
Voltage - Rated	350 V
Tolerance	±20%
Lifetime @ Temperature	10,000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar
Ripple Current @ 120 Hz	450 mA
Ripple Current @ 100 kHz	900 mA
Lead Spacing	0.295" (7.50 mm)
Package / Case	Radial, Can
Mounting Type	Through Hole
Size / Dimension	0.630" Dia (16.00 mm)
Height - Seated (Max)	0.846" (21.50 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the UCS2V330MHD are qualified based on the following criteria:

Electrical Compatibility: Capacitance value (33 µF) and tolerance (±20%) must be identical. Rated voltage must be equal to or greater than 350 V to maintain circuit safety margins.

Mechanical Compatibility: Lead spacing (7.50 mm), package type (radial, can), mounting method (through-hole), and physical dimensions (0.630" diameter, 0.846" maximum height) must match to ensure PCB footprint compatibility.

Thermal & Reliability: Operating temperature range (-40°C ~ 105°C) and ripple current ratings (450 mA @ 120 Hz, 900 mA @ 100 kHz) must be maintained or exceeded.

Compliance: RoHS3 compliance is required. REACH status may vary between substitute parts.

Two substitute parts meet these criteria with voltage upgrades from 350 V to 400 V, providing enhanced voltage margin while maintaining all other electrical and mechanical specifications.

Parameter Comparison

Parameter	UCS2V330MHD (Main)	UCS2G330MHD (Substitute)	UCY2G330MHD3 (Substitute)
Manufacturer	Nichicon	Nichicon	Nichicon
Capacitance	33 µF	33 µF	33 µF
Tolerance	±20%	±20%	±20%
Voltage - Rated	350 V	400 V	400 V
Lifetime @ Temperature	10,000 Hrs @ 105°C	10,000 Hrs @ 105°C	12,000 Hrs @ 105°C
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Ripple Current @ 120 Hz	450 mA	450 mA	450 mA
Ripple Current @ 100 kHz	900 mA	900 mA	900 mA
Lead Spacing	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)
Size / Dimension	0.630" Dia (16.00 mm)	0.630" Dia (16.00 mm)	0.630" Dia (16.00 mm)
Height - Seated (Max)	0.846" (21.50 mm)	0.846" (21.50 mm)	0.846" (21.50 mm)
Package / Case	Radial, Can	Radial, Can	Radial, Can
Mounting Type	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

UCS2G330MHD: This substitute provides a direct voltage upgrade from 350 V to 400 V while maintaining identical capacitance, tolerance, thermal rating, and mechanical dimensions. Both parts are ROHS3 compliant and active in production. The UCS2G330MHD is suitable for applications where increased voltage margin is beneficial without requiring extended thermal lifetime.

UCY2G330MHD3: This substitute offers both voltage upgrade (350 V to 400 V) and extended thermal lifetime (12,000 hours versus 10,000 hours at 105°C). The UCY2G330MHD3 maintains ROHS3 compliance and identical mechanical specifications. This part is recommended for applications requiring enhanced reliability and longer operational life at elevated temperatures. REACH status is affected for this part, which may require compliance verification in specific regulatory jurisdictions.

Both substitutes maintain full electrical and mechanical compatibility with the original UCS2V330MHD specification and are suitable for direct replacement in through-hole PCB applications.

Frequently Asked Questions (FAQ)

Q: Can UCS2G330MHD or UCY2G330MHD3 be used as direct replacements for UCS2V330MHD?

A: Yes. Both substitute parts maintain identical capacitance (33 µF), tolerance (±20%), operating temperature range (-40°C ~ 105°C), ripple current ratings, lead spacing (7.50 mm), and physical dimensions (0.630" diameter, 0.846" height). The rated voltage increases from 350 V to 400 V, which is compatible with circuits designed for 350 V operation. PCB footprints and through-hole mounting requirements are identical.

Q: What is the difference between the two substitute parts?

A: UCS2G330MHD maintains the same 10,000-hour thermal lifetime as the original part. UCY2G330MHD3 extends thermal lifetime to 12,000 hours at 105°C and belongs to the UCY series rather than the UCS series. Both provide 400 V rated voltage. The UCY2G330MHD3 has affected REACH status, while UCS2G330MHD maintains unaffected REACH status.

Q: Are there any package or mounting differences between these parts?

A: No. All three parts use identical radial, can package configuration with through-hole mounting. Lead spacing, diameter, and maximum seated height are identical across all parts.

Q: Which substitute should be selected for maximum reliability?

A: Selection depends on application requirements. For standard general-purpose applications, UCS2G330MHD provides adequate performance with voltage margin. For applications requiring extended operational life at elevated temperatures, UCY2G330MHD3 is specified with 12,000-hour thermal rating. Regulatory compliance requirements may influence selection based on REACH status.

Q: Are all parts RoHS3 compliant?

A: Yes. UCS2V330MHD, UCS2G330MHD, and UCY2G330MHD3 are all ROHS3 compliant. REACH status differs: UCS2V330MHD and UCS2G330MHD are REACH unaffected, while UCY2G330MHD3 is REACH affected.

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