Equivalent & Substitute Parts for UPB2E151MHD

Part Overview

The Nichicon UPB2E151MHD is a 150 µF, 250 V aluminum electrolytic capacitor in radial, can package configuration. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production, maintenance, and design updates. The UPB series offers a 5000-hour lifetime rating at 105°C and is suitable for general-purpose applications requiring through-hole mounting.

Key Parameters

Parameter	Value
Capacitance	150 µF
Voltage Rating	250 V
Tolerance	±20%
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-25°C ~ 105°C
Lead Spacing	0.295" (7.50 mm)
Package Type	Radial, Can
Mounting Type	Through Hole
Ripple Current @ 120 Hz	750 mA
Ripple Current @ 100 kHz	1.5 A

Substitute Part Grouping Explanation

Substitution eligibility for the UPB2E151MHD is determined by the following critical parameters:

Capacitance: 150 µF (exact match required)
Voltage Rating: 250 V (exact match required)
Tolerance: ±20% (exact match required)
Lead Spacing: 0.295" (7.50 mm) (exact match required)
Package Type: Radial, Can (exact match required)
Mounting Type: Through Hole (exact match required)

Substitute parts must maintain identical electrical specifications and physical footprint compatibility. Variations in lifetime rating, ripple current capacity, and operating temperature range are permissible when the core parameters align. Parts with extended lifetime ratings or enhanced ripple current handling provide improved performance characteristics while maintaining drop-in compatibility.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Size (Dia)	Height (Max)	Ripple @ 120 Hz	Ripple @ 100 kHz	Status
UPB2E151MHD	Nichicon	150 µF	250 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.299" (33.00 mm)	750 mA	1.5 A	Obsolete
UCA2E151MHD	Nichicon	150 µF	250 V	±20%	12000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.299" (33.00 mm)	750 mA	1.5 A	Obsolete
UPT2E151MHD	Nichicon	150 µF	250 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	1.299" (33.00 mm)	620 mA	992 mA	Active
EKXJ251ELL151MUN3S	Chemi-Con	150 µF	250 V	±20%	12000 Hrs	0.295" (7.50 mm)	0.571" (14.50 mm)	1.299" (33.00 mm)	870 mA	1.9575 A	Active
EEU-EB2E151	Panasonic	150 µF	250 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.319" (34.60 mm)	808.5 mA	1.47 A	Obsolete
EEU-ED2E151	Panasonic	150 µF	250 V	±20%	10000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.240" (31.50 mm)	810 mA	1.8 A	Obsolete
EEU-EE2E151	Panasonic	150 µF	250 V	±20%	10000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.319" (34.60 mm)	1.008 A	2.52 A	Obsolete

Engineering Selection Recommendations

Active Product Priority: UPT2E151MHD (Nichicon) and EKXJ251ELL151MUN3S (Chemi-Con) are the only active products in this substitution group. UPT2E151MHD maintains Nichicon manufacturer continuity with ROHS3 compliance. EKXJ251ELL151MUN3S offers AEC-Q200 automotive qualification and extended 12000-hour lifetime, suitable for applications requiring enhanced reliability.

Extended Lifetime Options: UCA2E151MHD (Nichicon, 12000 Hrs) and EEU-ED2E151 or EEU-EE2E151 (Panasonic, 10000 Hrs) provide longer operational life compared to the original 5000-hour specification. These are appropriate for designs where extended service intervals are required.

Compliance Considerations: All substitute parts carry ROHS3 compliance and REACH Unaffected status, matching the regulatory profile of the original UPB2E151MHD.

Physical Footprint Variations: UPT2E151MHD and EKXJ251ELL151MUN3S feature reduced diameter dimensions (0.630" and 0.571" respectively) compared to the original 0.709" diameter. These compact variants are suitable for space-constrained PCB layouts while maintaining identical lead spacing and height compatibility.

Frequently Asked Questions (FAQ)

Q: Can UPT2E151MHD directly replace UPB2E151MHD?

A: Yes. UPT2E151MHD is a direct substitute with identical capacitance, voltage, tolerance, lead spacing, and package type. The reduced diameter (0.630" vs. 0.709") provides a smaller footprint while maintaining full electrical and mechanical compatibility.

Q: What is the advantage of selecting EKXJ251ELL151MUN3S?

A: EKXJ251ELL151MUN3S offers AEC-Q200 automotive qualification, 12000-hour lifetime (versus 5000 hours), and enhanced ripple current handling (1.9575 A @ 100 kHz versus 1.5 A). The compact 0.571" diameter reduces PCB space requirements. This part is suitable for automotive and high-reliability applications.

Q: Are there differences in ripple current capacity between substitutes?

A: Yes. Ripple current varies across the substitution group. EEU-EE2E151 provides the highest ripple current capacity (2.52 A @ 100 kHz), while UPT2E151MHD offers the lowest (992 mA @ 10 kHz). Selection depends on circuit ripple current requirements at the operating frequency.

Q: Which substitute offers the longest operational lifetime?

A: UCA2E151MHD and EKXJ251ELL151MUN3S both provide 12000-hour lifetime ratings at 105°C, compared to 5000 hours for the original UPB2E151MHD. EEU-ED2E151 and EEU-EE2E151 offer intermediate 10000-hour ratings.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance and REACH Unaffected status, maintaining regulatory alignment with the original component.

Q: What is the impact of diameter variation on PCB layout?

A: UPT2E151MHD (0.630" diameter) and EKXJ251ELL151MUN3S (0.571" diameter) occupy less radial space than the original UPB2E151MHD (0.709" diameter). Lead spacing remains constant at 0.295" (7.50 mm), ensuring footprint compatibility. Reduced diameter allows tighter component placement on the PCB.

Q: Can I use EEU-EE2E151 in high-ripple-current applications?

A: Yes. EEU-EE2E151 supports 2.52 A ripple current at 100 kHz, the highest capacity in this substitution group. This makes it suitable for applications with elevated AC current stress on the capacitor.

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