UVR2W330MHD Equivalent & Substitute Parts

Part Overview

The UVR2W330MHD is a 33 µF, 450 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as not for new designs, indicating end-of-life status. The part operates across a temperature range of -25°C to 85°C with a rated lifetime of 2000 hours at 85°C, suitable for general-purpose applications requiring stable capacitance and ripple current handling in through-hole mounting configurations.

Equivalent and substitute parts are necessary due to inventory constraints, design phase requirements, or performance optimization needs. Active alternatives from established manufacturers provide comparable electrical characteristics while offering extended product lifecycles and enhanced reliability ratings.

Key Parameters

Parameter	Value
Capacitance	33 µF
Voltage Rating	450 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-25°C ~ 85°C
Polarization	Polar
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.630" (16.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: capacitance value (33 µF), voltage rating (450 V), tolerance (±20%), polarization (polar), lead spacing (0.295" / 7.50 mm), case diameter (0.630" / 16.00 mm), mounting type (through hole), and package configuration (radial can). All substitute parts listed meet these core electrical and mechanical requirements.

Substitute parts are grouped into three categories:

Similar Series (Nichicon UVK2W330MHD): Direct manufacturer alternative with identical electrical specifications but reduced physical height (27.00 mm vs. 37.50 mm), resulting in lower ripple current ratings.

Direct Equivalents (Cornell Dubilier 336CKS450M, 336CKS450MQV; Panasonic ECA-2WM330; Chemi-Con ESMG451ELL330MLN3S; Cornell Dubilier Electronics SK330M450ST): Active production parts with matching core parameters and varying physical dimensions and ripple current capabilities.

Upgrade Options (Vishay MAL215257339E3, MAL215267339E3): Enhanced performance variants offering extended lifetime (4000 Hrs @ 105°C), wider operating temperature range (-40°C ~ 105°C), automotive-grade certification (AEC-Q200), and active product status.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Height (Max)	Ripple Current @ 120 Hz	Ripple Current @ 10/100 kHz	Product Status	RoHS Status
UVR2W330MHD	Nichicon	33 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	1.476" (37.50 mm)	230 mA	368 mA @ 10 kHz	Not For New Designs	ROHS3
UVK2W330MHD	Nichicon	33 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	1.063" (27.00 mm)	180 mA	288 mA @ 10 kHz	Not For New Designs	ROHS3
336CKS450M	Cornell Dubilier / Illinois Capacitor	33 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	1.240" (31.50 mm)	280 mA	504 mA @ 100 kHz	Active	ROHS3
336CKS450MQV	Cornell Dubilier / Illinois Capacitor	33 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	1.043" (26.50 mm)	300 mA	540 mA @ 100 kHz	Active	ROHS3
ECA-2WM330	Panasonic Electronic Components	33 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	1.319" (34.60 mm)	285 mA	484.5 mA @ 10 kHz	Active	ROHS3
ESMG451ELL330MLN3S	Chemi-Con	33 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	1.299" (33.00 mm)	215 mA	387 mA @ 100 kHz	Active	ROHS3
SK330M450ST	Cornell Dubilier Electronics (CDE)	33 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	1.496" (38.00 mm)	Not specified	Not specified	Active	ROHS3
MAL215257339E3	Vishay Beyschlag/Draloric/BC Components	33 µF	450 V	±20%	4000 Hrs @ 105°C	-40°C ~ 105°C	1.476" (37.50 mm)	200 mA	Not specified	Active	ROHS3
MAL215267339E3	Vishay Beyschlag/Draloric/BC Components	33 µF	450 V	±20%	4000 Hrs @ 105°C	-40°C ~ 105°C	1.476" (37.50 mm)	200 mA	Not specified	Active	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Pin-Compatible, Same Footprint): Select 336CKS450M or ECA-2WM330 for active production status with proven reliability. Both maintain identical lead spacing and case diameter while offering superior ripple current handling compared to the UVR2W330MHD. The 336CKS450M provides the highest ripple current capacity at 504 mA @ 100 kHz.

For Space-Constrained Applications: The 336CKS450MQV offers the most compact height (26.50 mm) among active alternatives while maintaining full electrical equivalence. This variant is suitable for designs where vertical clearance is limited.

For Enhanced Reliability and Extended Temperature Operation: The Vishay MAL215257339E3 and MAL215267339E3 provide superior performance with 4000-hour lifetime at 105°C, extended operating range (-40°C ~ 105°C), and AEC-Q200 automotive certification. These upgrades are appropriate for applications requiring higher reliability margins or automotive-grade qualification.

For General-Purpose Applications: The Panasonic ECA-2WM330 and Chemi-Con ESMG451ELL330MLN3S deliver balanced performance with active product status and adequate ripple current ratings for standard industrial applications.

All substitute parts maintain ROHS3 compliance and are electrically interchangeable within the specified parameters.

Frequently Asked Questions (FAQ)

Q: Can UVK2W330MHD replace UVR2W330MHD in existing designs? A: UVK2W330MHD is electrically equivalent but has reduced physical height (27.00 mm vs. 37.50 mm) and lower ripple current ratings (180 mA @ 120 Hz vs. 230 mA). Substitution is valid only if the application does not require the original ripple current capacity and if the reduced height does not create mechanical conflicts.

Q: What is the primary difference between the Cornell Dubilier 336CKS450M and 336CKS450MQV? A: Both parts are electrically identical with 33 µF, 450 V specifications. The 336CKS450MQV is more compact (26.50 mm height vs. 31.50 mm) and offers higher ripple current capacity (300 mA @ 120 Hz vs. 280 mA). Selection depends on space constraints and ripple current requirements.

Q: Are the Vishay MAL215257339E3 and MAL215267339E3 interchangeable? A: Yes. Both parts are identical in electrical and mechanical specifications, offering 4000-hour lifetime at 105°C and AEC-Q200 automotive certification. They represent upgrade options for applications requiring extended reliability and temperature performance.

Q: Do all substitute parts meet the same RoHS compliance level? A: Yes. All listed substitute parts are ROHS3 compliant, matching the original UVR2W330MHD specification.

Q: Which substitute part offers the best ripple current performance? A: The 336CKS450MQV provides the highest ripple current capacity at 300 mA @ 120 Hz and 540 mA @ 100 kHz, making it suitable for high-ripple-current applications.

Q: Can I use a substitute part with a different physical height in my PCB design? A: Physical height differences range from 26.50 mm to 38.00 mm across available options. Verify that the selected substitute does not interfere with adjacent components or enclosure constraints. Lead spacing (0.295" / 7.50 mm) and case diameter (0.630" / 16.00 mm) remain constant across all parts.

Q: What is the advantage of selecting an upgrade part like MAL215267339E3? A: Upgrade parts provide extended lifetime (4000 Hrs @ 105°C vs. 2000 Hrs @ 85°C), wider operating temperature range (-40°C ~ 105°C vs. -25°C ~ 85°C), and automotive-grade certification (AEC-Q200). These enhancements are beneficial for mission-critical or automotive applications requiring higher reliability margins.

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