UPJ2W100MHD Equivalent & Substitute Parts

Part Overview

The UPJ2W100MHD is a 10 µF, 450 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 maintenance, repair, and legacy system support. The part operates across a temperature range of -25°C to 105°C with a rated lifetime of 5000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance and ripple current handling.

Key Parameters

Parameter	Value
Capacitance	10 µF
Voltage Rating	450 V
Tolerance	±20%
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-25°C ~ 105°C
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.295" (7.50mm)
Case Diameter	0.630" (16.00mm)
Height (Seated Max)	1.043" (26.50mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the UPJ2W100MHD is determined by strict adherence to the following electrical and mechanical parameters:

Mandatory Matching Parameters:

Capacitance: 10 µF (exact match required)
Voltage Rating: 450 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Package Type: Radial, Can (exact match required)
Mounting Type: Through Hole (exact match required)
Operating Temperature Range: -25°C ~ 105°C (exact match required)

Flexible Parameters (substitution allowed with consideration):

Lifetime @ 105°C: May vary (5000 Hrs baseline; higher ratings provide extended service life)
Lead Spacing: May vary (0.295" primary; 0.197" acceptable for PCB layout compatibility)
Case Diameter: May vary (0.630" primary; 0.492" acceptable for space-constrained designs)
Height: May vary (1.043" primary; shorter heights acceptable for clearance requirements)
Ripple Current Ratings: May vary (higher ratings provide improved performance margin)

Substitute parts are grouped into two categories: Nichicon series alternatives (UCA, UPW, UVY, UVZ) and Panasonic alternatives (ECA, EEU series). All listed substitutes maintain the core electrical specifications while offering different mechanical footprints and thermal performance characteristics.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Case Diameter	Height (Max)	Product Status	RoHS
UPJ2W100MHD	Nichicon	10 µF	450 V	±20%	5000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.043" (26.50mm)	Obsolete	ROHS3
UCA2W100MHD	Nichicon	10 µF	450 V	±20%	12000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.846" (21.50mm)	Obsolete	ROHS3
UPW2W100MHD	Nichicon	10 µF	450 V	±20%	8000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	0.984" (25.00mm)	Obsolete	ROHS3
UVY2W100MPD	Nichicon	10 µF	450 V	±20%	2000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.866" (22.00mm)	Not For New Designs	ROHS3
UVZ2W100MHD	Nichicon	10 µF	450 V	±20%	2000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	Not For New Designs	ROHS3
ECA-2WHG100	Panasonic	10 µF	450 V	±20%	2000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	Active	ROHS3
ECA-2WHG100B	Panasonic	10 µF	450 V	±20%	2000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	Active	ROHS3
ECA-2WHG100E	Panasonic	10 µF	450 V	±20%	2000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	Active	ROHS3
EEU-EB2W100	Panasonic	10 µF	450 V	±20%	5000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	Active	ROHS3
EEU-ED2W100	Panasonic	10 µF	450 V	±20%	10000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.787" (20.00mm)	Active	ROHS3
EEU-EE2W100	Panasonic	10 µF	450 V	±20%	10000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	Active	ROHS3

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement):

UPW2W100MHD maintains identical lead spacing (0.295", 7.50mm) and case diameter (0.630", 16.00mm) as the UPJ2W100MHD, differing only in height (0.984" vs. 1.043") and lifetime rating (8000 Hrs vs. 5000 Hrs). This part is the closest mechanical match for PCB layouts designed for the original component. Both are Nichicon products with ROHS3 compliance and obsolete status.

UCA2W100MHD offers extended lifetime (12000 Hrs @ 105°C) with reduced physical footprint (0.197" lead spacing, 0.492" diameter, 0.846" height). This substitution is suitable for applications where PCB space is constrained and extended thermal performance is beneficial.

Active Product Alternatives (Recommended for New Designs and Ongoing Supply):

EEU-EE2W100 (Panasonic) provides 10000-hour lifetime with active product status, ensuring long-term availability. Mechanical footprint is compact (0.197" lead spacing, 0.492" diameter, 0.866" height), requiring PCB layout verification for compatibility.

EEU-ED2W100 (Panasonic) offers the highest lifetime rating (10000 Hrs @ 105°C) among active products with the shortest height (0.787"), suitable for space-critical applications.

ECA-2WHG100, ECA-2WHG100B, and ECA-2WHG100E (Panasonic) are active products with identical electrical specifications and compact mechanical dimensions. These parts are suitable for immediate procurement and long-term supply chain stability.

All recommended substitutes maintain ROHS3 compliance and operate within the specified temperature range (-25°C ~ 105°C). Selection should prioritize active product status for new designs and ongoing maintenance applications.

Frequently Asked Questions (FAQ)

Q: Can UPJ2W100MHD be directly replaced with UPW2W100MHD on existing PCBs?

A: Yes. Both parts share identical lead spacing (0.295", 7.50mm) and case diameter (0.630", 16.00mm). Height difference is minimal (1.043" vs. 0.984"), and UPW2W100MHD provides superior lifetime (8000 Hrs vs. 5000 Hrs). No PCB layout modifications are required.

Q: What is the difference between Nichicon and Panasonic substitutes?

A: Both manufacturers produce equivalent 10 µF, 450 V aluminum electrolytic capacitors meeting identical electrical specifications. Nichicon alternatives (UCA, UPW, UVY, UVZ) are primarily obsolete products. Panasonic alternatives (ECA, EEU series) include active products with extended availability and improved lifetime ratings. Selection depends on supply chain requirements and thermal performance needs.

Q: Can I use a substitute with a different lead spacing on my PCB?

A: Lead spacing changes require PCB layout verification. UPJ2W100MHD uses 0.295" (7.50mm) spacing. Substitutes with 0.197" (5.00mm) spacing (UCA2W100MHD, ECA series, EEU series) are mechanically incompatible without PCB modification. Verify hole spacing before substitution.

Q: Which substitute offers the best long-term availability?

A: Panasonic EEU-EE2W100 and EEU-ED2W100 are classified as active products, ensuring continued manufacturing and supply. EEU-ED2W100 provides the highest lifetime rating (10000 Hrs @ 105°C) among active alternatives. These parts are recommended for new designs and applications requiring extended component lifecycle.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitutes maintain ROHS3 compliance, matching the original UPJ2W100MHD specification. Environmental and regulatory requirements are satisfied across all alternatives.

Q: What is the impact of different lifetime ratings on component selection?

A: Lifetime rating indicates thermal endurance at 105°C. UPJ2W100MHD is rated 5000 Hrs. Substitutes range from 2000 Hrs (UVY, UVZ, ECA series) to 12000 Hrs (UCA2W100MHD). Higher ratings provide extended operational margin in high-temperature environments. Selection should align with application thermal profile and expected service life requirements.

Q: Can I substitute UPJ2W100MHD with ECA-2WHG100 in a legacy system?

A: Electrical substitution is valid (10 µF, 450 V, ±20%, polar, through-hole). Mechanical compatibility requires verification: ECA-2WHG100 uses 0.197" lead spacing and 0.492" diameter versus UPJ2W100MHD's 0.295" spacing and 0.630" diameter. PCB layout modification is necessary. ECA-2WHG100 is an active Panasonic product with 2000-hour lifetime.

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