Equivalent & Substitute Parts for UPB1A331MPD

Part Overview

The UPB1A331MPD is a 330 µF, 10 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The UPB series has been discontinued, requiring engineers to identify compatible alternatives that maintain electrical performance within the same form factor and mounting specifications.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	10 V
Tolerance	±20%
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-40°C ~ 105°C
Lead Spacing	0.138" (4.60 mm)
Case Diameter	0.315" (8.00 mm)
Height (Seated Max)	0.512" (13.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
Ripple Current @ 120 Hz	150 mA
Ripple Current @ 100 kHz	195 mA

Substitute Part Grouping Explanation

Substitution of the UPB1A331MPD is determined by the following critical parameters:

Mandatory Matching Parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 10 V minimum (equal or higher voltage rating acceptable)
Tolerance: ±20% (standard tolerance for general purpose applications)
Package Type: Radial, Can (physical form factor)
Lead Spacing: 0.138" (4.60 mm) or compatible spacing
Case Diameter: 0.315" (8.00 mm) or compatible dimensions
Height: 0.512" (13.00 mm) or compatible height
Mounting Type: Through Hole

Performance Parameters:

Operating Temperature: -40°C ~ 105°C (minimum requirement)
Lifetime @ 105°C: 5000 Hrs or greater
Ripple Current Ratings: Must meet or exceed specified values

Substitutes are grouped into three categories: Direct equivalents (same voltage rating), upgrades (higher voltage rating with improved performance), and similar alternatives (different lead spacing or case dimensions).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ 105°C	Lead Spacing	Case Diameter	Height	Ripple Current @ 120 Hz	Ripple Current @ 100 kHz	Product Status
UPB1A331MPD	Nichicon	330 µF	10 V	5000 Hrs	0.138" (4.60 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	150 mA	195 mA	Obsolete
UTT1E331MPD1TA	Nichicon	330 µF	25 V	5000 Hrs	0.138" (4.60 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	178.8 mA	298 mA	Active
UHV1C331MPD	Nichicon	330 µF	16 V	6000 Hrs	0.138" (4.60 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	415 mA	—	Not For New Designs
UHV1E331MPD	Nichicon	330 µF	25 V	6000 Hrs	0.138" (4.60 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	495 mA	990 mA	Not For New Designs
UKL1A331MPDANA	Nichicon	330 µF	10 V	1000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	0.531" (14.60 mm)	400 mA	—	Not For New Designs
10YXM330MEFR8X11.5	Rubycon	330 µF	10 V	10000 Hrs	0.138" (4.60 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	231 mA	330 mA	Active
16YXF330MEFC8X11.5	Rubycon	330 µF	16 V	7000 Hrs	0.138" (4.60 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	280 mA	400 mA	Not For New Designs
25YXJ330M8X11.5	Rubycon	330 µF	25 V	7000 Hrs	0.138" (4.60 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	448 mA	—	Active
25ZLH330MEFC8X11.5	Rubycon	330 µF	25 V	8000 Hrs	0.138" (4.60 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	519.75 mA	945 mA	Active
25ZLJ330M8X11.5	Rubycon	330 µF	25 V	9000 Hrs	0.138" (4.60 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	660 mA	1.2 A	Active
25ZLS330MEFC8X11.5	Rubycon	330 µF	25 V	6000 Hrs	0.138" (4.60 mm)	0.315" (8.00 mm)	0.512" (13.00 mm)	495 mA	900 mA	Active

Engineering Selection Recommendations

Direct Equivalent (Same Voltage Rating): The 10YXM330MEFR8X11.5 from Rubycon is the primary direct equivalent. It maintains the 10 V voltage rating, identical physical dimensions, and lead spacing. The part is currently active and offers extended lifetime (10000 Hrs @ 105°C) compared to the original UPB1A331MPD (5000 Hrs @ 105°C), with higher ripple current ratings across both frequency bands.

Voltage Upgrade Options: For applications where higher voltage margin is acceptable, the following active parts provide improved performance:

UTT1E331MPD1TA (Nichicon, 25 V): Active status, same physical footprint, enhanced ripple current capacity
25YXJ330M8X11.5 (Rubycon, 25 V): Active status, 7000 Hrs lifetime, higher ripple current
25ZLH330MEFC8X11.5 (Rubycon, 25 V): Active status, 8000 Hrs lifetime, superior ripple current performance
25ZLJ330M8X11.5 (Rubycon, 25 V): Active status, 9000 Hrs lifetime, highest ripple current capacity

Not Recommended for New Designs: UHV1C331MPD, UHV1E331MPD, 16YXF330MEFC8X11.5, and UKL1A331MPDANA are marked as "Not For New Designs" and should be avoided for new product development.

Physical Form Factor Consideration: UKL1A331MPDANA has different lead spacing (0.197" vs 0.138") and larger case dimensions, making it unsuitable as a direct PCB replacement without layout modification.

Frequently Asked Questions (FAQ)

Q: Can I use a 25 V rated capacitor in place of the 10 V UPB1A331MPD? A: Yes. A higher voltage rating is electrically compatible in circuits designed for 10 V operation. The capacitor will operate safely with additional voltage margin. Physical dimensions and lead spacing must match for PCB compatibility.

Q: What is the difference between the Nichicon and Rubycon substitutes? A: Both manufacturers produce 330 µF aluminum electrolytic capacitors with identical electrical specifications (capacitance, voltage, tolerance, temperature range). Selection depends on product status, lifetime rating, ripple current requirements, and supply availability. Rubycon's 10YXM330MEFR8X11.5 offers the longest lifetime (10000 Hrs) at the original 10 V rating.

Q: Does the UPB1A331MPD have a direct active equivalent? A: The closest active equivalent is the Rubycon 10YXM330MEFR8X11.5, which matches the 10 V rating and physical dimensions while offering superior lifetime performance.

Q: Are there RoHS compliant alternatives? A: Yes. All substitute parts listed are RoHS3 compliant except where noted. Verify specific compliance requirements for your application.

Q: What happens if I use a capacitor with different lead spacing? A: Different lead spacing requires PCB layout modification. The UKL1A331MPDANA uses 0.197" spacing versus the standard 0.138" spacing of the UPB1A331MPD and most substitutes, necessitating design changes.

Q: Which substitute offers the best ripple current performance? A: The 25ZLJ330M8X11.5 provides the highest ripple current ratings (660 mA @ 120 Hz, 1.2 A @ 100 kHz) with 9000 Hrs lifetime at 25 V rating.

Q: Can I mix different substitute parts in the same circuit? A: Yes, provided all parts meet the minimum electrical requirements for your application. Mixing manufacturers and series is acceptable as long as capacitance, voltage rating, tolerance, and physical dimensions are compatible with your PCB layout.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message