Equivalent & Substitute Parts for UVR2F101MHA

Part Overview

The Nichicon UVR2F101MHA is a 100 µF, 315 V aluminum electrolytic capacitor in radial, can package with a rated lifetime of 2000 hours at 85°C. This part is classified as obsolete, making equivalent and substitute components necessary for ongoing production and maintenance applications. The UVR series represents legacy technology; modern designs should transition to active product lines with improved performance characteristics and extended operational lifespans.

Key Parameters

Parameter	Value
Capacitance	100 µF
Voltage Rating	315 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.709" (18.00 mm)
Height	1.476" (37.50 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
Polarization	Polar

Substitute Part Grouping Explanation

Substitution for the UVR2F101MHA is determined by strict electrical and mechanical compatibility criteria:

Electrical Parameters (Must Match or Exceed):

Capacitance: 100 µF (exact match required)
Voltage Rating: Minimum 315 V (equal or higher acceptable)
Tolerance: ±20% or tighter
Operating Temperature: Must support -40°C to 85°C minimum

Mechanical Parameters (Must Match):

Lead Spacing: 0.295" (7.50 mm)
Case Diameter: 0.709" (18.00 mm)
Height: 1.476" (37.50 mm) or compatible within PCB constraints
Mounting Type: Through Hole
Package: Radial, Can

Substitutes are grouped into three categories:

Direct Equivalent (Same Series): UVR2F101MHD — identical electrical and mechanical specifications with improved RoHS3 compliance
Voltage Upgrade Substitutes: Parts rated 350 V, 400 V, or 450 V — provide higher voltage margin while maintaining identical capacitance and footprint
Cross-Manufacturer Alternatives: Rubycon, Chemi-Con, and Vishay parts meeting all electrical and mechanical requirements

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp	Lead Spacing	Case Dia	Height	Product Status	RoHS Status
UVR2F101MHA	Nichicon	100 µF	315 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.295"	0.709"	1.476"	Obsolete	Non-compliant
UVR2F101MHD	Nichicon	100 µF	315 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.295"	0.709"	1.476"	Not For New Designs	ROHS3 Compliant
UAS2G101MHD	Nichicon	100 µF	400 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.295"	0.709"	1.476"	Active	ROHS3 Compliant
UVK2G101MHD	Nichicon	100 µF	400 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.295"	0.709"	1.476"	Not For New Designs	ROHS3 Compliant
UVK2V101MHD	Nichicon	100 µF	350 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.295"	0.709"	1.476"	Not For New Designs	ROHS3 Compliant
350PX100KEFC18X35.5	Rubycon	100 µF	350 V	±10%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.295"	0.709"	1.476"	Active	ROHS3 Compliant
400PX100MEFC18X35.5	Rubycon	100 µF	400 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.295"	0.709"	1.476"	Active	ROHS3 Compliant
450BXW100MEFR18X35	Rubycon	100 µF	450 V	±20%	12000 Hrs @ 105°C	-40°C ~ 105°C	0.295"	0.709"	1.457"	Active	ROHS3 Compliant
EKMQ401ELL101MMP1S	Chemi-Con	100 µF	400 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.295"	0.709"	1.457"	Active	ROHS3 Compliant
ESMQ401ELL101MMP1S	Chemi-Con	100 µF	400 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.295"	0.709"	1.457"	Active	ROHS3 Compliant
MAL214261015E3	Vishay Beyschlag/Draloric/BC Components	100 µF	350 V	±20%	2500 Hrs @ 105°C	-40°C ~ 105°C	0.295"	0.709"	1.457"	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Specifications): UVR2F101MHD is the direct equivalent with identical 315 V rating and 2000-hour lifetime at 85°C. This part maintains the original design intent while providing ROHS3 compliance. Inventory availability is 5295 units.

For Voltage Margin Enhancement: UVK2V101MHD (350 V) or UVK2G101MHD (400 V) provide higher voltage ratings within the same Nichicon UVR/UVK series family. Both maintain 100 µF capacitance and through-hole footprint compatibility. These are classified as "Not For New Designs" but remain suitable for legacy system maintenance.

For Active Product Line Transition: UAS2G101MHD (Nichicon, 400 V, Active status) represents the modern equivalent with extended operating temperature range (-40°C to 105°C) and improved thermal performance. This part is recommended for new production designs requiring long-term supply assurance.

For Cross-Manufacturer Alternatives:

450BXW100MEFR18X35 (Rubycon): Highest voltage rating (450 V) with extended 12000-hour lifetime at 105°C. Height is 1.457" (0.019" shorter than original). Active product status ensures supply continuity.
400PX100MEFC18X35.5 (Rubycon): 400 V rating with 2000-hour lifetime at 105°C. Active status with 692 units in stock.
EKMQ401ELL101MMP1S or ESMQ401ELL101MMP1S (Chemi-Con): 400 V alternatives with active product status. Height is 1.457" (0.019" shorter). Both support -40°C to 105°C operating range.
MAL214261015E3 (Vishay): 350 V rating with 2500-hour lifetime at 105°C. Active status with extended temperature support.

All substitute parts maintain the required 0.295" lead spacing and 0.709" case diameter for PCB compatibility. Height variations of ±0.019" are within standard through-hole assembly tolerances.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage-rated capacitor as a substitute? A: Yes. A capacitor rated for 350 V, 400 V, or 450 V will function in a circuit designed for 315 V. Higher voltage ratings provide additional safety margin and do not degrade circuit performance. All substitute parts listed maintain identical capacitance (100 µF) and physical footprint.

Q: What is the difference between UVR2F101MHD and UVR2F101MHA? A: Both are 100 µF, 315 V, 2000-hour rated capacitors with identical electrical specifications. The primary difference is RoHS compliance: UVR2F101MHA is non-compliant (obsolete), while UVR2F101MHD is ROHS3 compliant. The MHD variant is preferred for new production and maintenance applications.

Q: Are there height differences between substitute parts? A: Yes. The original UVR2F101MHA has a maximum seated height of 1.476". Some substitutes (450BXW100MEFR18X35, EKMQ401ELL101MMP1S, ESMQ401ELL101MMP1S, MAL214261015E3) have a height of 1.457", which is 0.019" shorter. This difference is within standard PCB assembly tolerances and does not affect functionality. Verify PCB clearance if height-constrained applications are involved.

Q: Which substitute offers the longest operational lifetime? A: The Rubycon 450BXW100MEFR18X35 provides 12000 hours at 105°C, compared to 2000 hours at 85°C for the original part. This represents a six-fold improvement in rated lifetime and is suitable for applications requiring extended reliability.

Q: Can I use a ±10% tolerance capacitor instead of ±20%? A: Yes. The Rubycon 350PX100KEFC18X35.5 offers ±10% tolerance, which is tighter than the original ±20% specification. Tighter tolerance provides improved circuit performance in applications sensitive to capacitance variation. All other electrical and mechanical parameters remain compatible.

Q: What is the difference between Nichicon UAS and UVK series? A: UAS2G101MHD is classified as Active product status with extended operating temperature (-40°C to 105°C) and represents the current production line. UVK series parts are classified as "Not For New Designs" but remain available for legacy system support. For new designs, UAS series is recommended.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All substitute parts listed are ROHS3 compliant. The original UVR2F101MHA is non-compliant. RoHS3 compliance is required for most modern production environments and regulatory jurisdictions.

Q: Which substitute has the best availability? A: The Rubycon 450BXW100MEFR18X35 has the highest inventory with 11421 units in stock, followed by Nichicon UVR2F101MHD with 5295 units. Both are suitable for immediate procurement.

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