UPB2C331MHD Equivalent & Substitute Parts

Part Overview

The UPB2C331MHD is a 330 µF, 160 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, with a rated lifetime of 5000 hours at 105°C. Due to its obsolete status and limited operational lifespan compared to modern alternatives, equivalent and substitute parts with extended lifetimes, improved temperature ranges, and active product status are available to ensure long-term design reliability and supply chain continuity.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	160 V
Tolerance	±20%
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-25°C ~ 105°C
Polarization	Polar
Package Type	Radial, Can
Lead Spacing	0.295" (7.50 mm)
Diameter	0.709" (18.00 mm)
Height	1.299" (33.00 mm)
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution of the UPB2C331MHD is determined by the following critical parameters:

Capacitance Value: Must be 330 µF (±20% tolerance acceptable)
Voltage Rating: Minimum 160 V; higher ratings (200 V) are acceptable as upgrades
Package Footprint: Lead spacing 0.295" (7.50 mm), diameter 0.709" (18.00 mm), height within tolerance range
Mounting Configuration: Through-hole radial, can package only
Polarization: Polar electrolytic capacitor

Substitute parts are categorized as follows:

Direct Equivalents maintain identical voltage ratings (160 V) with improved or equivalent lifetime specifications and active product status.

Upgrade Parts feature higher voltage ratings (200 V) or extended operational lifetimes, providing enhanced design margins while maintaining mechanical and electrical compatibility.

Similar Parts share core electrical specifications but may have reduced lifetime ratings or obsolete status; these are listed for reference only.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Operating Temp Range	Lead Spacing	Diameter	Height	Product Status
UPB2C331MHD	Nichicon	330 µF	160 V	±20%	5000 Hrs	-25°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.299" (33.00 mm)	Obsolete
UCS2C331MHD	Nichicon	330 µF	160 V	±20%	10000 Hrs	-40°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.299" (33.00 mm)	Active
UCY2D331MHD6	Nichicon	330 µF	200 V	±20%	12000 Hrs	-40°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.299" (33.00 mm)	Active
EEU-ED2C331	Panasonic Electronic Components	330 µF	160 V	±20%	10000 Hrs	-25°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.240" (31.50 mm)	Obsolete
160BXC330MEFC18X31.5	Rubycon	330 µF	160 V	±20%	12000 Hrs	-25°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.319" (34.60 mm)	Active
EKXJ201ELL331MMN3S	Chemi-Con	330 µF	200 V	±20%	12000 Hrs	-40°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.299" (33.00 mm)	Active
ECA-2CHG331	Panasonic Electronic Components	330 µF	160 V	±20%	2000 Hrs	-25°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.319" (34.60 mm)	Obsolete
EEU-EE2C331	Panasonic Electronic Components	330 µF	160 V	±20%	10000 Hrs	-25°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.319" (34.60 mm)	Obsolete

Engineering Selection Recommendations

Primary Recommendation: UCS2C331MHD (Nichicon)

The UCS2C331MHD is the preferred direct equivalent. It maintains the same manufacturer (Nichicon), identical electrical specifications (330 µF, 160 V, ±20%), and identical mechanical footprint. The UCS2C331MHD offers doubled lifetime (10000 hours versus 5000 hours), extended lower operating temperature limit (-40°C versus -25°C), and active product status ensuring long-term availability and supply chain stability.

Secondary Recommendation: UCY2D331MHD6 (Nichicon) or EKXJ201ELL331MMN3S (Chemi-Con)

Both parts provide upgrade specifications with 200 V voltage rating and 12000-hour lifetime at 105°C. These are suitable for applications requiring enhanced design margins. UCY2D331MHD6 maintains Nichicon manufacturer continuity. EKXJ201ELL331MMN3S includes AEC-Q200 automotive qualification and extended temperature range (-40°C ~ 105°C), appropriate for automotive or harsh-environment applications.

Alternative Recommendation: 160BXC330MEFC18X31.5 (Rubycon)

This Rubycon part provides 160 V equivalent specifications with 12000-hour lifetime and active status. Height dimension (1.319" versus 1.299") requires verification against PCB layout constraints.

Not Recommended for New Designs:

ECA-2CHG331, EEU-ED2C331, and EEU-EE2C331 are obsolete parts with limited remaining inventory. ECA-2CHG331 has significantly reduced lifetime (2000 hours), making it unsuitable for reliability-critical applications.

Frequently Asked Questions (FAQ)

Q: Can I use a 200 V rated capacitor in place of the 160 V UPB2C331MHD?

A: Yes. A higher voltage rating (200 V) is electrically compatible and provides additional design margin. The capacitor will operate safely in circuits designed for 160 V. Mechanical footprint compatibility must be verified.

Q: What is the difference between direct equivalents and upgrade parts?

A: Direct equivalents (UCS2C331MHD, EEU-ED2C331, EEU-EE2C331) maintain the same 160 V voltage rating. Upgrade parts (UCY2D331MHD6, EKXJ201ELL331MMN3S) feature 200 V ratings and typically longer lifetimes, offering enhanced performance margins.

Q: Does the height difference between parts affect PCB compatibility?

A: Height variations exist within the substitute list (1.240" to 1.319"). Verify that the selected substitute fits within the available PCB clearance. Lead spacing (0.295" / 7.50 mm) and diameter (0.709" / 18.00 mm) are consistent across all parts.

Q: Why is product status important for this substitution?

A: Active products ensure ongoing manufacturer support, consistent supply availability, and compliance with current industry standards. Obsolete parts face supply discontinuation and may not meet updated regulatory requirements.

Q: Are there ripple current differences between substitutes?

A: Yes. Ripple current ratings vary by part. UCS2C331MHD and UCY2D331MHD6 support higher ripple currents (3.13 A @ 100 kHz) compared to the original UPB2C331MHD (1.7 A @ 100 kHz), indicating improved thermal performance.

Q: Can I substitute the UPB2C331MHD with a lower voltage rating capacitor?

A: No. A capacitor with voltage rating lower than 160 V is not acceptable. The circuit voltage stress would exceed the component rating, creating reliability and safety risks.

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