Equivalent & Substitute Parts for UVR2W100MHA

Part Overview

The UVR2W100MHA is a 10 µF, 450 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete and is no longer recommended for new designs. The UVR series operates at 2000 hours lifetime at 85°C with general-purpose applications. Due to its obsolete status and limited availability for future production, equivalent and substitute parts from active product lines are necessary to ensure design continuity and long-term supply chain reliability.

Key Parameters

Parameter	Value
Capacitance	10 µF
Voltage Rating	450 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-25°C ~ 85°C
Lead Spacing	0.197" (5.00mm)
Package / Case	Radial, Can
Mounting Type	Through Hole
Size / Dimension	0.492" Dia (12.50mm)
Height - Seated (Max)	0.866" (22.00mm)
Polarization	Polar
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the UVR2W100MHA is determined by strict adherence to the following electrical and mechanical parameters:

Core Substitution Criteria:

Capacitance: 10 µF (exact match required)
Voltage Rating: 450 V minimum (higher voltage ratings are acceptable)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Lead Spacing: 0.197" (5.00mm) (exact match required)
Package / Case: Radial, Can (exact match required)
Mounting Type: Through Hole (exact match required)
Size / Dimension: 0.492" Dia (12.50mm) (exact match required)

Acceptable Variations:

Lifetime @ Temperature: May exceed 2000 Hrs @ 85°C
Operating Temperature Range: May exceed -25°C ~ 85°C
Height - Seated: Minor variations acceptable (within 0.02" tolerance)
RoHS Status: May be upgraded to RoHS3 compliant

Substitute parts are grouped into three categories: Direct Manufacturer equivalents (same series or compatible series from Nichicon), Upgrade parts (enhanced performance characteristics), and Parametric Equivalents (cross-manufacturer alternatives meeting all core criteria).

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp	Lead Spacing	Size Dia	Height Max	Product Status	RoHS Status
UVR2W100MHA	Nichicon	UVR	10 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	Obsolete	RoHS non-compliant
UVR2W100MHD	Nichicon	UVR	10 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	Not For New Designs	ROHS3 Compliant
UVR2W100MHD1CV	Nichicon	UVR	10 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	Active	Not specified
UBT2W100MHD8	Nichicon	UBT	10 µF	450 V	±20%	2000 Hrs @ 125°C	-25°C ~ 125°C	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	Active	ROHS3 Compliant
UCA2W100MHD	Nichicon	UCA	10 µF	450 V	±20%	12000 Hrs @ 105°C	-25°C ~ 105°C	0.197" (5.00mm)	0.492" (12.50mm)	0.846" (21.50mm)	Obsolete	ROHS3 Compliant
UCS2W100MHD	Nichicon	UCS	10 µF	450 V	±20%	10000 Hrs @ 105°C	-25°C ~ 105°C	0.197" (5.00mm)	0.492" (12.50mm)	0.846" (21.50mm)	Active	ROHS3 Compliant
UCY2H100MHD	Nichicon	UCY	10 µF	500 V	±20%	10000 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00mm)	0.492" (12.50mm)	0.846" (21.50mm)	Active	ROHS3 Compliant
450BXC10MEFC12.5X20	Rubycon	BXC	10 µF	450 V	±20%	12000 Hrs @ 105°C	-25°C ~ 105°C	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	Active	ROHS3 Compliant
ESMG451ELL100MK20S	Chemi-Con	SMG	10 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.197" (5.00mm)	0.492" (12.50mm)	0.846" (21.50mm)	Active	ROHS3 Compliant
106CKE450M	Cornell Dubilier / Illinois Capacitor	CKE	10 µF	450 V	±20%	2000 Hrs @ 105°C	-25°C ~ 105°C	0.197" (5.00mm)	0.492" (12.50mm)	0.846" (21.50mm)	Active	ROHS3 Compliant
106CKS500MTJG	Cornell Dubilier / Illinois Capacitor	CKS	10 µF	500 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.197" (5.00mm)	0.492" (12.50mm)	0.846" (21.50mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Nichicon Equivalent (Recommended for Existing Designs): UVR2W100MHD1CV is the active production equivalent within the UVR series. This part maintains identical electrical and mechanical specifications to the UVR2W100MHA while offering active product status for continued availability.

Nichicon Upgrade Options (Enhanced Performance):

UBT2W100MHD8: Automotive-grade upgrade with extended operating temperature range (-25°C ~ 125°C) and ROHS3 compliance. Suitable for applications requiring higher temperature performance.
UCS2W100MHD: Active product with 10000 Hrs @ 105°C lifetime, extended operating temperature range (-25°C ~ 105°C), and ROHS3 compliance. Recommended for general-purpose applications requiring improved reliability.
UCA2W100MHD: Extended lifetime (12000 Hrs @ 105°C) with ROHS3 compliance. Height variation of 0.02" acceptable for most PCB layouts.

Higher Voltage Alternative (Nichicon): UCY2H100MHD provides 500 V rating with 10000 Hrs @ 105°C lifetime and extended low-temperature operation (-40°C ~ 105°C). ROHS3 compliant. Suitable where voltage margin is required.

Cross-Manufacturer Alternatives (Active Production):

450BXC10MEFC12.5X20 (Rubycon): Maintains original height specification (0.866") with 12000 Hrs @ 105°C lifetime and ROHS3 compliance.
ESMG451ELL100MK20S (Chemi-Con): Matches original lifetime specification (2000 Hrs @ 85°C) with ROHS3 compliance and active product status.
106CKE450M (Cornell Dubilier): Active product with 2000 Hrs @ 105°C lifetime and ROHS3 compliance. Specified ESR of 33.16Ohm @ 120Hz.
106CKS500MTJG (Cornell Dubilier): 500 V rated alternative with ROHS3 compliance and active status.

All recommended substitutes maintain the core electrical parameters (10 µF, ±20% tolerance, polar configuration) and mechanical specifications (5.00mm lead spacing, 12.50mm diameter, through-hole radial package) required for direct PCB compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage-rated capacitor as a substitute? A: Yes. A capacitor rated for 500 V (such as UCY2H100MHD or 106CKS500MTJG) is electrically compatible with a 450 V application. Higher voltage ratings provide additional safety margin and are acceptable substitutes.

Q: What is the difference between the UVR2W100MHD and UVR2W100MHD1CV? A: Both parts are electrically and mechanically identical. UVR2W100MHD1CV is the active production variant with current availability, while UVR2W100MHD is classified as "Not For New Designs." For new designs, UVR2W100MHD1CV is preferred.

Q: Are there height differences between substitute parts? A: Minor height variations exist. The original UVR2W100MHA specifies 0.866" (22.00mm) maximum seated height. Some substitutes (UCA2W100MHD, UCS2W100MHD, ESMG451ELL100MK20S, 106CKE450M, 106CKS500MTJG) specify 0.846" (21.50mm). This 0.02" difference is typically acceptable for standard PCB layouts. Verify clearance in your specific application.

Q: What does "ROHS3 Compliant" mean? A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, mercury, cadmium, and other hazardous materials. The original UVR2W100MHA is RoHS non-compliant. Most active substitutes are ROHS3 compliant, making them suitable for applications with environmental compliance requirements.

Q: Which substitute offers the longest operational lifetime? A: UCA2W100MHD and 450BXC10MEFC12.5X20 both specify 12000 Hrs @ 105°C, providing extended operational lifetime compared to the original 2000 Hrs @ 85°C specification.

Q: Can I substitute a 10 µF capacitor with a different capacitance value? A: No. Capacitance is a core electrical parameter. Only 10 µF rated parts are acceptable substitutes. Different capacitance values will alter circuit performance and are not compatible.

Q: Are cross-manufacturer parts (Rubycon, Chemi-Con, Cornell Dubilier) reliable alternatives? A: Yes. All listed cross-manufacturer substitutes meet the identical electrical and mechanical specifications and maintain active product status with ROHS3 compliance. They are suitable for direct replacement in applications where the core parameters (10 µF, 450 V, ±20%, radial through-hole package) are required.

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