UVR2V330MHD Equivalent & Substitute Parts

Part Overview

The UVR2V330MHD is a 33 µF, 350 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is rated for 2000 hours at 85°C and is classified as Not For New Designs. Due to its obsolescence status, equivalent and substitute parts with improved specifications or active product status are available to support ongoing maintenance and design flexibility.

Key Parameters

Parameter	Value
Capacitance	33 µF
Voltage Rating	350 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.295" (7.50mm)
Case Diameter	0.630" Dia (16.00mm)
Height	1.063" (27.00mm)
Mounting Type	Through Hole
Package	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UVR2V330MHD is determined by the following criteria:

Direct Electrical Equivalence: Parts must maintain 33 µF capacitance and ±20% tolerance. Voltage rating must be equal to or greater than 350 V to ensure safe operation in the original circuit.

Mechanical Compatibility: Lead spacing of 0.295" (7.50mm), case diameter of 0.630" (16.00mm), and height of 1.063" (27.00mm) are required for PCB footprint compatibility. Through-hole radial configuration must be preserved.

Thermal and Lifetime Specifications: Operating temperature range must encompass -40°C to 85°C minimum. Lifetime rating at operating temperature determines long-term reliability.

Compliance Requirements: All substitutes must maintain ROHS3 compliance and equivalent regulatory certifications.

Substitutes are categorized as:

Direct Substitutes: Identical electrical and mechanical specifications with active product status
Upgrade Substitutes: Enhanced voltage rating, extended lifetime, or improved temperature performance while maintaining mechanical compatibility
Similar Substitutes: Equivalent electrical performance with minor mechanical variations in lead spacing or case dimensions

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ Temp	Operating Temp	Lead Spacing	Case Dia	Height	Product Status
UVR2V330MHD	Nichicon	33 µF	350 V	2000 Hrs @ 85°C	-40°C ~ 85°C	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	Not For New Designs
ESMG351ELL330ML25S	Chemi-Con	33 µF	350 V	2000 Hrs @ 85°C	-40°C ~ 85°C	0.295" (7.50mm)	0.630" (16.00mm)	1.043" (26.50mm)	Active
UVK2V330MHD	Nichicon	33 µF	350 V	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00mm)	0.492" (12.50mm)	1.063" (27.00mm)	Not For New Designs
EKMG351ELL330ML25S	Chemi-Con	33 µF	350 V	2000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50mm)	0.630" (16.00mm)	1.043" (26.50mm)	Active
UAQ2G330MHD6	Nichicon	33 µF	400 V	2000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	Active
ULD2W330MHD	Nichicon	33 µF	450 V	20000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	Not For New Designs
400PX33MEFC16X25	Rubycon	33 µF	400 V	2000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	Active
EKMG401ELL330ML25S	Chemi-Con	33 µF	400 V	2000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50mm)	0.630" (16.00mm)	1.043" (26.50mm)	Active
EKMQ401ELL330ML25S	Chemi-Con	33 µF	400 V	2000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50mm)	0.630" (16.00mm)	1.043" (26.50mm)	Active
ESMG401ELL330ML25S	Chemi-Con	33 µF	400 V	2000 Hrs @ 85°C	-40°C ~ 85°C	0.295" (7.50mm)	0.630" (16.00mm)	1.043" (26.50mm)	Active
EKXF451ELL330ML25S	Chemi-Con	33 µF	450 V	20000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50mm)	0.630" (16.00mm)	1.043" (26.50mm)	Active

Engineering Selection Recommendations

For Direct Replacement with Active Status: ESMG351ELL330ML25S (Chemi-Con) provides direct electrical equivalence at 33 µF, 350 V with identical thermal specifications. This part maintains active product status and ROHS3 compliance. Height is 1.043" versus 1.063" on the original; verify PCB clearance before selection.

For Enhanced Voltage Margin: UAQ2G330MHD6 (Nichicon), 400PX33MEFC16X25 (Rubycon), EKMG401ELL330ML25S (Chemi-Con), and EKMQ401ELL330ML25S (Chemi-Con) all provide 400 V rating with active product status and extended operating temperature to 105°C. These are suitable where higher voltage headroom is required.

For Extended Lifetime: ULD2W330MHD (Nichicon) and EKXF451ELL330ML25S (Chemi-Con) offer 20000 hours at 105°C versus 2000 hours on the original. EKXF451ELL330ML25S is active and recommended for applications requiring extended service life.

For Temperature-Extended Operation: EKMG351ELL330ML25S (Chemi-Con) maintains 350 V rating while extending operating temperature to 105°C and lifetime to 2000 hours at that temperature. This provides improved thermal performance within the original voltage specification.

Frequently Asked Questions (FAQ)

Q: Can ESMG351ELL330ML25S replace UVR2V330MHD directly on the PCB? A: Yes, electrically and mechanically. Both are 33 µF, 350 V radial capacitors with 0.295" lead spacing and 0.630" case diameter. Height differs by 0.020" (1.043" vs 1.063"); confirm clearance above the component.

Q: What is the advantage of selecting a 400 V rated part instead of 350 V? A: Higher voltage rating provides additional safety margin in the circuit. If the original design operates at or near 350 V, a 400 V part reduces stress on the dielectric and extends component life.

Q: Why do some substitutes have different case heights? A: Manufacturers optimize case geometry for thermal performance and manufacturing efficiency. Height variations of ±0.020" are common within the same capacitance and voltage class. Verify PCB layout clearance before substitution.

Q: Is EKMG351ELL330ML25S suitable for applications requiring 85°C operation? A: Yes. EKMG351ELL330ML25S is rated for -40°C to 105°C operation, which encompasses the original -40°C to 85°C range. The extended temperature capability does not degrade performance at lower temperatures.

Q: What is the difference between "Not For New Designs" and "Active" product status? A: Active parts are in current production with guaranteed availability and support. Not For New Designs indicates the manufacturer is phasing out the product; existing inventory may be available but future supply is not guaranteed. For new applications, select Active status parts.

Q: Can ULD2W330MHD or EKXF451ELL330ML25S be used as drop-in replacements? A: Yes, mechanically and electrically. Both maintain 33 µF capacitance, 0.295" lead spacing, and 0.630" case diameter. ULD2W330MHD offers 450 V and 20000 hours at 105°C; EKXF451ELL330ML25S provides the same with Active status.

Q: Are all listed substitutes ROHS3 compliant? A: Yes. All parts in this reference maintain ROHS3 compliance and equivalent regulatory certifications as the original UVR2V330MHD.

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