UFW1V331MPD1TD Equivalent & Substitute Parts

Part Overview

The UFW1V331MPD1TD is a 330 µF, 35 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in Nichicon's product line. The UFW series operates at 2000 hours lifetime at 85°C with a ±20% capacitance tolerance and is designed for audio applications. Equivalent and substitute parts are necessary to support existing designs, provide design flexibility across manufacturers, and accommodate supply chain variations while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	35 V
Tolerance	±20%
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Diameter	0.394" (10.00 mm)
Height (Max)	0.551" (14.00 mm)
Mounting Type	Through Hole
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UFW1V331MPD1TD is determined by strict adherence to the following electrical and mechanical parameters:

Core Substitution Criteria:

Capacitance: 330 µF (exact match required)
Voltage Rating: 35 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Diameter: 0.394" (10.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Allowable Variations:

Height: Maximum 0.551" (14.00 mm) permitted; parts with 0.531" (14.60 mm) are acceptable
Lifetime @ Temperature: May vary (2000 Hrs @ 85°C, 2000 Hrs @ 105°C, or 10000 Hrs @ 105°C)
Operating Temperature Range: May extend beyond -40°C ~ 85°C
Ripple Current: May exceed minimum specifications
Manufacturer: Different manufacturers acceptable if all electrical and mechanical parameters match

All substitute parts listed meet these criteria and are electrically and mechanically interchangeable with the UFW1V331MPD1TD in through-hole PCB applications.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp.	Operating Temp.	Ripple Current @ 120 Hz	Height (Max)	Product Status
UFW1V331MPD1TD	Nichicon	UFW	330 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	470 mA	0.551" (14.00 mm)	Not For New Designs
UKA1V331MPD1TD	Nichicon	UKA	330 µF	35 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	350 mA	0.551" (14.00 mm)	Not For New Designs
UKW1V331MPD1TD	Nichicon	UKW	330 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	470 mA	0.551" (14.00 mm)	Not For New Designs
URS1V331MPD1TD	Nichicon	URS	330 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	480 mA	0.551" (14.00 mm)	Active
UVK1V331MPD1TD	Nichicon	UVK	330 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	490 mA	0.551" (14.00 mm)	Not For New Designs
UVR1V331MPD1TD	Nichicon	UVR	330 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	490 mA	0.551" (14.00 mm)	Not For New Designs
ECA-1VM331B	Panasonic Electronic Components	M-A	330 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	440 mA	0.531" (14.60 mm)	Active
35ZLH330MEFCT810X12.5	Rubycon	ZLH	330 µF	35 V	±20%	10000 Hrs @ 105°C	-40°C ~ 105°C	731.5 mA	0.551" (14.00 mm)	Active
860010575012	Würth Elektronik	WCAP-ATG8	330 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	528 mA	0.551" (14.00 mm)	Active
860020575013	Würth Elektronik	WCAP-ATG5	330 µF	35 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	400 mA	0.551" (14.00 mm)	Active
ECA-1VHG331B	Panasonic Electronic Components	NHG-A	330 µF	35 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	350 mA	0.531" (14.60 mm)	Active

Engineering Selection Recommendations

Active Product Status Priority: For new designs or long-term supply assurance, select from parts with Active product status: URS1V331MPD1TD (Nichicon), ECA-1VM331B (Panasonic), 35ZLH330MEFCT810X12.5 (Rubycon), 860010575012 (Würth Elektronik), 860020575013 (Würth Elektronik), or ECA-1VHG331B (Panasonic).

Compliance Certification: All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, matching the UFW1V331MPD1TD certification profile.

Thermal Performance Considerations: Parts rated for 2000 Hrs @ 105°C (UKA1V331MPD1TD, 860020575013, ECA-1VHG331B) or 10000 Hrs @ 105°C (35ZLH330MEFCT810X12.5) provide extended thermal reliability compared to the original 2000 Hrs @ 85°C specification.

Mechanical Fit: All substitute parts maintain the required 0.197" (5.00 mm) lead spacing and 0.394" (10.00 mm) diameter. Height variations (0.531" vs 0.551") are within acceptable through-hole PCB design tolerances.

Frequently Asked Questions (FAQ)

Q: Can I substitute UFW1V331MPD1TD with any of the listed parts without PCB modification? A: Yes. All listed substitute parts share identical lead spacing (5.00 mm), diameter (10.00 mm), and mounting type (through hole). Height differences (0.531" or 0.551") do not require PCB layout changes for through-hole applications.

Q: What is the difference between Nichicon UFW, UKW, UVR, and URS series? A: These are different Nichicon series within the same electrical specification (330 µF, 35 V, ±20%). They differ in product status (UFW, UKW, UVR are Not For New Designs; URS is Active), thermal ratings, and ripple current handling. URS is the recommended Nichicon choice for new designs.

Q: Why does 35ZLH330MEFCT810X12.5 have higher ripple current ratings? A: The Rubycon ZLH series is rated for 10000 Hrs @ 105°C with lower ESR, resulting in higher ripple current capacity (731.5 mA @ 120 Hz, 1.33 A @ 100 kHz) compared to the original 470 mA @ 120 Hz specification.

Q: Are there differences in operating temperature ranges? A: Yes. The original UFW1V331MPD1TD operates -40°C ~ 85°C. Substitutes offer extended ranges: UKA1V331MPD1TD and ECA-1VHG331B extend to -55°C ~ 105°C. This provides design flexibility for temperature-critical applications.

Q: Which substitute offers the best long-term reliability? A: The 35ZLH330MEFCT810X12.5 (Rubycon ZLH series) provides the highest rated lifetime at 10000 Hrs @ 105°C, compared to 2000 Hrs @ 85°C or 2000 Hrs @ 105°C for other substitutes.

Q: Can I use parts with different ripple current ratings? A: Yes, provided the substitute's ripple current rating meets or exceeds your circuit's ripple current requirement. All listed substitutes have ripple current specifications; verify your application's actual ripple current demand before selection.

Q: What packaging formats are available? A: The UFW1V331MPD1TD uses Cut Tape (CT) packaging. Substitute parts are available in Cut Tape (CT) or Tape & Box (TB) formats. Both are suitable for through-hole assembly; packaging choice depends on your procurement and assembly process requirements.

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