UPB2E101MHD Equivalent & Substitute Parts

Part Overview

The UPB2E101MHD is a 100 µF, 250 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 part is rated for 5000 hours at 105°C and is suitable for general-purpose applications requiring stable capacitance and ripple current handling in through-hole configurations.

Key Parameters

Parameter	Value
Capacitance	100 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)
Case Diameter	0.709" (18.00 mm)
Height (Seated Max)	1.043" (26.50 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
Ripple Current @ 120 Hz	600 mA
Ripple Current @ 100 kHz	1.2 A

Substitute Part Grouping Explanation

Substitution of the UPB2E101MHD is determined by the following critical parameters:

Primary Matching Criteria:

Capacitance: 100 µF (exact match required)
Voltage Rating: 250 V (minimum; higher ratings acceptable)
Tolerance: ±20% (standard for aluminum electrolytic capacitors)
Lead Spacing: 0.295" (7.50 mm) (mechanical compatibility)
Case Diameter: 0.709" (18.00 mm) (physical fit)
Height: 1.043" (26.50 mm) (PCB clearance)
Mounting Type: Through Hole (assembly compatibility)
Package Type: Radial, Can (form factor)

Secondary Considerations:

Lifetime rating (5000 Hrs @ 105°C or higher acceptable)
Ripple current capability (600 mA @ 120 Hz minimum)
Operating temperature range (-25°C ~ 105°C or wider acceptable)
Product status (Active preferred for long-term availability)

Substitute parts are grouped into two categories: direct mechanical and electrical equivalents (same case dimensions and lead spacing), and functional equivalents with different physical dimensions but identical electrical performance within the application envelope.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Case Dia (mm)	Height (mm)	Lead Spacing (mm)	Ripple @ 120 Hz	Ripple @ 100 kHz	Status
UPB2E101MHD	Nichicon	100 µF	250 V	±20%	5000 Hrs	18.00	26.50	7.50	600 mA	1.2 A	Obsolete
UCA2E101MHD	Nichicon	100 µF	250 V	±20%	12000 Hrs	16.00	33.00	7.50	700 mA	1.4 A	Obsolete
UCA2E101MHD6	Nichicon	100 µF	250 V	±20%	12000 Hrs	18.00	26.50	7.50	672.5 mA	1.345 A	Obsolete
UPT2E101MHD	Nichicon	100 µF	250 V	±20%	5000 Hrs	12.50	37.00	5.00	460 mA	—	Active
EKXG351ELL101MM25S	Chemi-Con	100 µF	350 V	±20%	10000 Hrs	18.00	25.00	7.50	700 mA	1.575 A	Active
ECA-2EHG101	Panasonic	100 µF	250 V	±20%	2000 Hrs	16.00	34.60	7.50	365 mA	547.5 mA	Active
EEU-EB2E101	Panasonic	100 µF	250 V	±20%	5000 Hrs	16.00	34.60	7.50	660 mA	1.2 A	Active
EEU-EB2E101S	Panasonic	100 µF	250 V	±20%	5000 Hrs	18.00	27.00	7.50	660 mA	1.2 A	Active
EEU-ED2E101	Panasonic	100 µF	250 V	±20%	10000 Hrs	16.00	31.50	7.50	675 mA	1.5 A	Active
EEU-ED2E101S	Panasonic	100 µF	250 V	±20%	10000 Hrs	18.00	25.00	7.50	675 mA	1.5 A	Active
EEU-ED2E101SB	Panasonic	100 µF	250 V	±20%	10000 Hrs	18.00	27.00	7.50	675 mA	1.5 A	Active

Engineering Selection Recommendations

Direct Mechanical Equivalent (Identical Footprint):

UCA2E101MHD6 is the closest substitute with identical case diameter (18.00 mm), height (26.50 mm), and lead spacing (7.50 mm). This part maintains the same PCB layout compatibility as the UPB2E101MHD while offering extended lifetime (12000 Hrs @ 105°C). However, UCA2E101MHD6 is also obsolete.

Active Product Alternatives with Matching Footprint:

EEU-EB2E101S and EEU-ED2E101S (Panasonic) both feature the same case diameter (18.00 mm) and lead spacing (7.50 mm) as the original part. EEU-EB2E101S matches the original 5000-hour lifetime rating, while EEU-ED2E101S provides extended reliability at 10000 hours. Both are ROHS3 compliant and currently in active production.

EEU-ED2E101SB offers identical electrical and mechanical specifications to EEU-ED2E101S with Tape & Box packaging, suitable for automated assembly processes.

Higher Voltage Alternative:

EKXG351ELL101MM25S (Chemi-Con KXG series) provides 350 V rating with matching case diameter (18.00 mm) and lead spacing (7.50 mm). This part is suitable for applications where voltage margin is required and is currently active in production with ROHS3 compliance.

Functional Equivalent with Different Footprint:

UPT2E101MHD (Nichicon, Active) maintains identical electrical specifications (100 µF, 250 V, 5000 Hrs @ 105°C) but uses different lead spacing (5.00 mm) and case diameter (12.50 mm). This part requires PCB redesign and is not a direct drop-in replacement.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different case diameter?

A: Case diameter affects PCB clearance and mechanical fit. Parts with smaller diameters (e.g., UPT2E101MHD at 12.50 mm versus original 18.00 mm) require PCB layout verification. Parts with larger diameters may not fit existing board cutouts. Lead spacing must also match (7.50 mm for this application) to ensure correct hole alignment.

Q: What is the difference between EEU-EB2E101S and EEU-ED2E101S?

A: Both parts share identical case dimensions (18.00 mm diameter, 7.50 mm lead spacing) and electrical ratings (100 µF, 250 V, ±20%). The primary difference is lifetime: EEU-EB2E101S is rated for 5000 hours at 105°C, while EEU-ED2E101S is rated for 10000 hours at 105°C. EEU-ED2E101S provides extended reliability for applications requiring longer service life.

Q: Why is EKXG351ELL101MM25S rated at 350 V instead of 250 V?

A: Higher voltage rating provides additional safety margin and is electrically compatible with 250 V applications. The 350 V rating does not affect capacitance or tolerance. This part is suitable for designs requiring voltage headroom or operating in environments with voltage transients.

Q: Are all substitute parts ROHS3 compliant?

A: Active production parts (EEU-EB2E101S, EEU-ED2E101S, EEU-ED2E101SB, EKXG351ELL101MM25S) are ROHS3 compliant. Obsolete Nichicon parts (UCA2E101MHD, UCA2E101MHD6) do not list ROHS3 compliance. Verify compliance requirements for your application before selection.

Q: Can I substitute UPT2E101MHD as a direct replacement?

A: UPT2E101MHD is electrically equivalent but not a direct drop-in replacement. It uses 5.00 mm lead spacing (versus 7.50 mm) and 12.50 mm case diameter (versus 18.00 mm). PCB redesign is required. This part is suitable only if board layout can be modified.

Q: What packaging options are available?

A: Most substitute parts are supplied in Bulk packaging. EEU-ED2E101SB is available in Tape & Box (TB) format, suitable for automated pick-and-place assembly. Verify packaging requirements with your procurement process.

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