UPW2C331MRD Equivalent & Substitute Parts

Part Overview

The UPW2C331MRD is a 330 µF, 160 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 8000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The UPW series has reached obsolete status, making equivalent and substitute parts necessary for ongoing production and maintenance applications. Substitute parts maintain the core electrical specifications while offering improved longevity, enhanced ripple current handling, or active product status from alternative manufacturers.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	160 V
Tolerance	±20%
Operating Temperature Range	-40°C to 105°C
Lifetime @ 105°C	8000 Hours
Ripple Current @ 120 Hz	900 mA
Ripple Current @ 10 kHz	1.035 A
Lead Spacing	10.00 mm (0.394")
Case Diameter	20.00 mm (0.787")
Height (Seated Max)	40.00 mm (1.575")
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the UPW2C331MRD are selected based on strict electrical and mechanical compatibility criteria. All substitute candidates must match the following parameters:

Capacitance: 330 µF (exact match)
Voltage Rating: 160 V (exact match)
Tolerance: ±20% (exact match)
Operating Temperature Range: -40°C to 105°C (exact match)
Polarization: Polar (exact match)
Mounting Type: Through Hole (exact match)
Package Type: Radial, Can (exact match)

Substitutes may vary in the following parameters while maintaining functional equivalence:

Lifetime @ 105°C (may be higher or lower)
Ripple Current ratings (may be higher or lower)
Lead Spacing (minor variations acceptable within mechanical envelope constraints)
Case Diameter and Height (minor variations acceptable if footprint permits)
Manufacturer (alternative qualified manufacturers acceptable)
Product Status (active preferred over obsolete or not for new designs)

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Ripple Current @ 120 Hz	Ripple Current @ 10/100 kHz	Lead Spacing	Case Diameter	Height (Max)	Product Status
UPW2C331MRD	Nichicon	330 µF	160 V	±20%	8000 Hrs	900 mA	1.035 A @ 10 kHz	10.00 mm	20.00 mm	40.00 mm	Obsolete
UCY2C331MHD	Nichicon	330 µF	160 V	±20%	12000 Hrs	1.51 A	3.02 A @ 100 kHz	7.50 mm	16.00 mm	33.00 mm	Active
UCY2C331MHD6	Nichicon	330 µF	160 V	±20%	12000 Hrs	1.445 A	2.89 A @ 100 kHz	7.50 mm	18.00 mm	26.50 mm	Active
UVZ2C331MHD	Nichicon	330 µF	160 V	±20%	2000 Hrs	750 mA	862.5 mA @ 10 kHz	7.50 mm	18.00 mm	41.50 mm	Not For New Designs
EKXG161ELL331MMN3S	Chemi-Con	330 µF	160 V	±20%	10000 Hrs	1.39 A	3.1275 A @ 100 kHz	7.50 mm	18.00 mm	31.50 mm	Active
SEK331M160ST	Cornell Dubilier Electronics (CDE)	330 µF	160 V	±20%	2000 Hrs	850 mA	1.36 A @ 10 kHz	7.50 mm	18.00 mm	42.00 mm	Active

Engineering Selection Recommendations

Selection of substitute parts should be based on the following criteria:

For Active Product Status Priority: UCY2C331MHD and UCY2C331MHD6 (Nichicon) or EKXG161ELL331MMN3S (Chemi-Con) are recommended. These parts carry active product status and are suitable for new designs. UCY2C331MHD and UCY2C331MHD6 offer extended lifetime ratings of 12000 hours at 105°C compared to the original 8000 hours, providing improved reliability margins.

For Mechanical Fit Constraints: If the original 10.00 mm lead spacing and 20.00 mm case diameter are critical to the PCB layout, mechanical accommodation may be required, as all substitute parts feature reduced lead spacing (7.50 mm) and smaller case diameters (16.00 mm or 18.00 mm). UCY2C331MHD6 offers the most compact profile at 26.50 mm height.

For Ripple Current Requirements: EKXG161ELL331MMN3S provides the highest ripple current capability at 3.1275 A @ 100 kHz, suitable for applications with elevated AC stress. UCY2C331MHD offers comparable performance at 3.02 A @ 100 kHz.

For Compliance: All substitute parts maintain ROHS3 compliance. EKXG161ELL331MMN3S carries REACH Unaffected status, while UCY2C331MHD and UCY2C331MHD6 are REACH Affected.

Not Recommended for New Designs: UVZ2C331MHD and SEK331M160ST carry reduced lifetime ratings (2000 hours at 105°C) and should be reserved for legacy system maintenance only.

Frequently Asked Questions (FAQ)

Q: Can UCY2C331MHD be used as a direct replacement for UPW2C331MRD?

A: UCY2C331MHD is electrically equivalent and maintains all critical specifications (330 µF, 160 V, ±20%, -40°C to 105°C). However, mechanical differences exist: lead spacing is reduced from 10.00 mm to 7.50 mm, and case diameter is reduced from 20.00 mm to 16.00 mm. PCB layout verification is required before substitution.

Q: What is the difference between UCY2C331MHD and UCY2C331MHD6?

A: Both parts are electrically equivalent with identical capacitance, voltage, and tolerance. The primary differences are physical dimensions and ripple current ratings. UCY2C331MHD6 has a case diameter of 18.00 mm and height of 26.50 mm, while UCY2C331MHD has a case diameter of 16.00 mm and height of 33.00 mm. Ripple current ratings are comparable (1.445 A vs. 1.51 A @ 120 Hz).

Q: Why does EKXG161ELL331MMN3S have higher ripple current than the original part?

A: EKXG161ELL331MMN3S is manufactured by Chemi-Con using the KXG series design, which incorporates enhanced internal construction for improved AC current handling. The 10000-hour lifetime rating at 105°C also reflects improved thermal performance compared to the original 8000-hour rating.

Q: Is the UVZ2C331MHD suitable for new production?

A: No. UVZ2C331MHD carries "Not For New Designs" status and offers only 2000 hours lifetime at 105°C, significantly lower than the original 8000 hours. This part should be used only for maintenance of existing systems where no alternative is available.

Q: What are the compliance differences between substitute parts?

A: All substitute parts are ROHS3 compliant. EKXG161ELL331MMN3S is REACH Unaffected, while UCY2C331MHD and UCY2C331MHD6 are REACH Affected. SEK331M160ST and UVZ2C331MHD are REACH Unaffected. Verify compliance requirements for your specific application before selection.

Q: Can I use SEK331M160ST as a substitute?

A: SEK331M160ST is electrically equivalent but carries a 2000-hour lifetime rating at 105°C, matching the reduced performance of UVZ2C331MHD. It is suitable only for applications where extended lifetime is not required or for legacy system maintenance. Active product status makes it available for procurement, but superior alternatives exist.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message