Equivalent & Substitute Parts for UPT2W101MHD

Part Overview

The UPT2W101MHD is a 100 µF, 450 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as Active product status and is designed for general-purpose applications requiring reliable energy storage and filtering in power supply circuits.

Substitute parts become necessary when the primary part reaches end-of-life inventory, when design requirements demand extended operational lifetime, or when alternative manufacturers offer improved performance characteristics within the same electrical specifications. The parts listed below maintain electrical equivalence while offering variations in physical dimensions, ripple current ratings, and operational lifetime.

Key Parameters

Parameter	Value
Capacitance	100 µF
Voltage Rating	450 V
Tolerance	±20%
Operating Temperature Range	-25°C to 105°C
Package Type	Radial, Can
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UPT2W101MHD is determined by strict equivalence in the following parameters:

Capacitance value: 100 µF (exact match required)
Voltage rating: 450 V (exact match required)
Tolerance: ±20% (exact match required)
Operating temperature range: -25°C to 105°C (exact match required)
Package type: Radial, Can (exact match required)
Mounting type: Through Hole (exact match required)

Substitute parts may vary in the following non-critical parameters: physical dimensions (diameter and height), lead spacing, ripple current ratings, operational lifetime at rated temperature, and product status. These variations do not affect electrical equivalence but may impact PCB layout, thermal management, and long-term reliability expectations.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Size (Dia × Height)	Lead Spacing	Ripple Current @ 120 Hz	Ripple Current @ 10 kHz	Product Status
UPT2W101MHD	Nichicon	UPT	100 µF	450 V	±20%	5000 Hrs	0.709" × 1.634" (18.00mm × 41.50mm)	0.295" (7.50mm)	650 mA	1.04 A	Active
UPW2W101MRD	Nichicon	UPW	100 µF	450 V	±20%	8000 Hrs	0.984" × 1.969" (25.00mm × 50.00mm)	0.492" (12.50mm)	350 mA	—	Obsolete
UVY2W101MHD	Nichicon	UVY	100 µF	450 V	±20%	2000 Hrs	0.709" × 1.654" (18.00mm × 42.00mm)	0.295" (7.50mm)	200 mA	230 mA	Not For New Designs
UVZ2W101MRD	Nichicon	UVZ	100 µF	450 V	±20%	2000 Hrs	0.866" × 1.654" (22.00mm × 42.00mm)	0.394" (10.00mm)	270 mA	432 mA	Obsolete
EKXG451ELL101MM40S	Chemi-Con	KXG	100 µF	450 V	±20%	10000 Hrs	0.709" × 1.575" (18.00mm × 40.00mm)	0.295" (7.50mm)	800 mA	1.8 A	Active

Engineering Selection Recommendations

For Active Product Status Applications:

The UPT2W101MHD (Nichicon, Active) and EKXG451ELL101MM40S (Chemi-Con, Active) are the only substitute options with Active product status. Both maintain identical electrical specifications and physical footprint compatibility with the original part. EKXG451ELL101MM40S offers extended operational lifetime (10000 Hrs @ 105°C versus 5000 Hrs) and superior ripple current handling (1.8 A @ 10 kHz versus 1.04 A), making it suitable for designs requiring enhanced thermal stability and higher current filtering demands.

For Obsolete or Legacy Product Status Applications:

UPW2W101MRD, UVY2W101MHD, and UVZ2W101MRD are classified as Obsolete or Not For New Designs. These parts are electrically equivalent but should not be selected for new product development. Existing designs currently using these parts may continue operation with inventory stock, but migration to Active status alternatives is recommended for long-term supply chain stability.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory equivalence across all options.

Frequently Asked Questions (FAQ)

Q: Can UPT2W101MHD be directly replaced with EKXG451ELL101MM40S?

A: Yes. Both parts share identical capacitance (100 µF), voltage rating (450 V), tolerance (±20%), operating temperature range (-25°C to 105°C), and physical footprint (0.709" diameter, 7.50mm lead spacing). EKXG451ELL101MM40S is a direct substitute with improved ripple current performance and extended lifetime.

Q: What is the impact of different lead spacing on PCB compatibility?

A: Lead spacing determines the distance between component pins on the printed circuit board. UPT2W101MHD and EKXG451ELL101MM40S both use 0.295" (7.50mm) spacing and are PCB-compatible. UPW2W101MRD (0.492" spacing) and UVZ2W101MRD (0.394" spacing) require different PCB hole patterns and cannot be used as direct substitutes without board redesign.

Q: How does operational lifetime affect component selection?

A: Operational lifetime indicates the expected service hours at maximum rated temperature (105°C). UPT2W101MHD provides 5000 hours, while EKXG451ELL101MM40S extends this to 10000 hours. For applications with continuous operation at elevated temperatures, the extended lifetime option reduces premature failure risk.

Q: Are there physical dimension constraints when substituting?

A: Yes. UPT2W101MHD measures 0.709" diameter × 1.634" height. EKXG451ELL101MM40S is slightly shorter (1.575" height) but maintains the same diameter and lead spacing, making it compatible with existing PCB layouts. UPW2W101MRD and UVZ2W101MRD have larger diameters and different heights, requiring PCB redesign.

Q: Why should Obsolete parts be avoided in new designs?

A: Parts marked Obsolete or Not For New Designs have limited or discontinued manufacturing. Selecting these parts for new product development creates supply chain risk, potential cost increases, and difficulty sourcing replacement inventory during production ramp-up or field service.

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