UPB2D331MHD Equivalent & Substitute Parts

Part Overview

The UPB2D331MHD is a 330 µF, 200 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 design support and procurement. The part is rated for 5000 hours at 105°C and is suitable for general-purpose applications requiring through-hole mounting.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	200 V
Tolerance	±20%
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-25°C ~ 105°C
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.709" (18.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can

Substitute Part Grouping Explanation

Substitution for the UPB2D331MHD is determined by the following criteria:

Direct Equivalents maintain identical electrical specifications: 330 µF capacitance, 200 V voltage rating, ±20% tolerance, and identical mechanical dimensions (lead spacing, case diameter, height).

Upgrade Substitutes increase voltage rating to 250 V or 220 V while maintaining 330 µF capacitance and ±20% tolerance. These parts are pin-compatible with identical mechanical dimensions and lead spacing, allowing direct board-level substitution. Upgraded voltage ratings provide enhanced reliability margins in the same physical footprint.

Cross-Manufacturer Equivalents from alternative manufacturers (Panasonic, Chemi-Con) meet the same electrical and mechanical specifications with identical package geometry.

All substitute parts maintain through-hole radial can configuration with 0.295" (7.50 mm) lead spacing and 0.709" (18.00 mm) case diameter, ensuring PCB compatibility.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Operating Temp Range	Lead Spacing	Case Diameter	Height (Max)	Status
UPB2D331MHD	Nichicon	330 µF	200 V	±20%	5000 Hrs	-25°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.634" (41.50 mm)	Obsolete
EEU-ED2D331	Panasonic	330 µF	200 V	±20%	10000 Hrs	-25°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.575" (40.00 mm)	Obsolete
UPT2P331MHD	Nichicon	330 µF	220 V	±20%	5000 Hrs	-25°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.634" (41.50 mm)	Active
UCY2E331MHD9	Nichicon	330 µF	250 V	±20%	12000 Hrs	-40°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.634" (41.50 mm)	Active
EKXJ251ELL331MM40S	Chemi-Con	330 µF	250 V	±20%	12000 Hrs	-40°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.634" (41.50 mm)	Active

Engineering Selection Recommendations

For Direct Replacement (200 V Specification Required): EEU-ED2D331 (Panasonic) provides direct electrical equivalence with identical 200 V rating and 330 µF capacitance. This part offers extended lifetime (10000 Hrs @ 105°C versus 5000 Hrs) and ROHS3 compliance. Mechanical compatibility is confirmed with matching lead spacing and case diameter, with a 0.059" height reduction that poses no PCB layout constraints.

For Upgraded Voltage Margin (220 V Specification): UPT2P331MHD (Nichicon) maintains the original series lineage with active product status and ROHS3 compliance. The 220 V rating provides a 10% voltage margin over the original 200 V specification while preserving identical mechanical footprint and operating temperature range.

For Maximum Reliability and Extended Lifetime (250 V Specification): UCY2E331MHD9 (Nichicon) and EKXJ251ELL331MM40S (Chemi-Con) both offer 250 V rating with 12000-hour lifetime at 105°C, doubling the original 5000-hour specification. Both parts are active products with ROHS3 compliance. The Chemi-Con part carries AEC-Q200 automotive qualification. Extended operating temperature range (-40°C to 105°C) provides additional environmental margin.

Selection should be based on voltage margin requirements, desired lifetime extension, and manufacturer preference within your supply chain.

Frequently Asked Questions (FAQ)

Q: Can UPT2P331MHD replace UPB2D331MHD directly on the PCB? A: Yes. UPT2P331MHD is pin-compatible with identical lead spacing (0.295" / 7.50 mm), case diameter (0.709" / 18.00 mm), and height (1.634" / 41.50 mm). The 220 V rating is backward-compatible with 200 V circuit requirements.

Q: What is the physical difference between EEU-ED2D331 and UPB2D331MHD? A: EEU-ED2D331 is 0.059" (1.50 mm) shorter in height (1.575" versus 1.634"). All other dimensions—lead spacing, case diameter, and electrical specifications—are identical. This height difference does not affect PCB compatibility.

Q: Are UCY2E331MHD9 and EKXJ251ELL331MM40S interchangeable? A: Yes. Both parts share identical electrical specifications (330 µF, 250 V, ±20%), mechanical dimensions, and lead spacing. The primary difference is manufacturer (Nichicon versus Chemi-Con) and the Chemi-Con part's AEC-Q200 automotive qualification.

Q: Can I use a 250 V rated capacitor in a 200 V circuit? A: Yes. Higher voltage-rated capacitors are suitable for lower voltage applications. The 250 V parts (UCY2E331MHD9 and EKXJ251ELL331MM40S) provide additional voltage margin and extended lifetime in 200 V circuits.

Q: What is the impact of the extended temperature range in UCY2E331MHD9? A: UCY2E331MHD9 operates from -40°C to 105°C, compared to -25°C to 105°C for UPB2D331MHD. This provides 15°C additional low-temperature margin, beneficial for applications exposed to cold environments or thermal cycling.

Q: Are all substitute parts ROHS3 compliant? A: EEU-ED2D331, UPT2P331MHD, UCY2E331MHD9, and EKXJ251ELL331MM40S are all ROHS3 compliant. The original UPB2D331MHD does not specify ROHS status.

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