UVR2G100MHD Equivalent & Substitute Parts

Part Overview

The UVR2G100MHD is a 10 µF, 400 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in the product lifecycle. The UVR series operates at 2000 hours lifetime at 85°C with a ±20% capacitance tolerance and is suitable for general-purpose applications requiring through-hole mounting.

Identifying equivalent and substitute parts is necessary when the original UVR2G100MHD becomes unavailable or when design requirements demand improved performance characteristics such as extended operating temperature range or longer operational lifetime.

Key Parameters

Parameter	Value
Capacitance	10 µF
Voltage Rating	400 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.492" (12.50 mm)
Height	0.866" (22.00 mm)
Mounting Type	Through Hole, Radial
Polarization	Polar

Substitute Part Grouping Explanation

Substitution of the UVR2G100MHD is determined by strict equivalence in the following parameters:

Capacitance value: 10 µF (exact match required)
Voltage rating: 400 V or higher (higher ratings provide design margin)
Tolerance: ±20% (standard for aluminum electrolytic capacitors)
Lead spacing: 0.197" (5.00 mm) for PCB compatibility
Case diameter: 0.492" (12.50 mm) for mechanical fit
Height: 0.866" (22.00 mm) for clearance compatibility
Mounting type: Through hole, radial configuration
Polarization: Polar (required for DC applications)

Substitute parts are grouped into three categories:

Upgrade Substitutes: Parts with identical electrical parameters but improved performance characteristics (extended temperature range, longer lifetime, or higher voltage rating).

Similar Substitutes: Parts with identical electrical parameters and mechanical dimensions but from different manufacturers or series.

Parametric Equivalents: Parts with identical specifications but minor designation variations within the same manufacturer series.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Case Diameter	Height	Product Status
UVR2G100MHD	Nichicon	10 µF	400 V	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Not For New Designs
UAQ2G100MHD	Nichicon	10 µF	400 V	2000 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Active
UVR2G100MHD1AA	Nichicon	10 µF	400 V	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Active
URS2G100MHD	Nichicon	10 µF	400 V	2000 Hrs @ 85°C	-40°C ~ 85°C	0.295" (7.50 mm)	0.630" (16.00 mm)	0.650" (16.50 mm)	Active
400PX10MEFC12.5X20	Rubycon	10 µF	400 V	2000 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Active
MAL214267109E3	Vishay Beyschlag/Draloric/BC Components	10 µF	450 V	2500 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Active
MAL215257109E3	Vishay Beyschlag/Draloric/BC Components	10 µF	450 V	3000 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Active
MAL215267109E3	Vishay Beyschlag/Draloric/BC Components	10 µF	450 V	3000 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Active
ESMG401ELL100MJ20S	Chemi-Con	10 µF	400 V	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.846" (21.50 mm)	Active

Engineering Selection Recommendations

Direct Replacement (Same Specifications): UVR2G100MHD1AA is an active product from Nichicon with identical electrical and mechanical specifications. This part maintains the original design parameters while offering active product status.

Upgrade Path (Extended Temperature Range): UAQ2G100MHD and 400PX10MEFC12.5X20 extend the operating temperature range to -40°C ~ 105°C and provide 2000 hours lifetime at 105°C, compared to the original 85°C specification. Both maintain identical mechanical dimensions and voltage rating. These parts are suitable for applications requiring improved thermal performance.

Enhanced Reliability (Extended Lifetime): MAL215257109E3 and MAL215267109E3 from Vishay provide 3000 hours lifetime at 105°C with 450 V voltage rating. These parts offer extended operational life and higher voltage margin. Both are ROHS3 compliant and carry AEC-Q200 automotive qualification. Mechanical dimensions remain compatible with the original design.

Alternative Manufacturer (Same Specifications): ESMG401ELL100MJ20S from Chemi-Con provides equivalent electrical specifications with identical lead spacing. Case diameter is 0.394" (10.00 mm) and height is 0.846" (21.50 mm), representing a slightly more compact form factor while maintaining the same footprint spacing.

Mechanical Variation (Different Footprint): URS2G100MHD from Nichicon maintains identical electrical specifications but features different mechanical dimensions: 0.295" (7.50 mm) lead spacing, 0.630" (16.00 mm) case diameter, and 0.650" (16.50 mm) height. This part is suitable only when PCB layout accommodates the larger footprint.

All substitute parts listed are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can UAQ2G100MHD directly replace UVR2G100MHD in existing designs? A: Yes. UAQ2G100MHD maintains identical capacitance, voltage rating, tolerance, and mechanical dimensions. The extended operating temperature range (-40°C ~ 105°C versus -40°C ~ 85°C) and improved lifetime at elevated temperature provide enhanced performance without requiring design changes.

Q: What is the difference between MAL215257109E3 and MAL215267109E3? A: Both parts are from Vishay's 152 RMH series with identical electrical and mechanical specifications: 10 µF, 450 V, 3000 hours lifetime at 105°C, and AEC-Q200 automotive qualification. They are functionally equivalent for substitution purposes.

Q: Why does ESMG401ELL100MJ20S have different case dimensions? A: ESMG401ELL100MJ20S from Chemi-Con maintains the same lead spacing (0.197" / 5.00 mm) for PCB compatibility but uses a more compact case design with 0.394" (10.00 mm) diameter and 0.846" (21.50 mm) height. This provides equivalent electrical performance in a smaller physical envelope.

Q: Is URS2G100MHD a suitable substitute? A: URS2G100MHD is electrically equivalent but features different mechanical dimensions: 0.295" (7.50 mm) lead spacing, 0.630" (16.00 mm) case diameter, and 0.650" (16.50 mm) height. Substitution requires PCB layout verification to confirm the larger footprint is accommodated.

Q: What is the advantage of 450 V rated parts over 400 V? A: MAL214267109E3, MAL215257109E3, and MAL215267109E3 provide 450 V voltage rating compared to the original 400 V specification. This higher rating offers additional design margin for voltage transients and overvoltage conditions while maintaining identical physical dimensions and lead spacing.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed in this reference are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing.

Q: Can I use a substitute part with extended lifetime (3000 hours) in place of the original 2000-hour specification? A: Yes. Extended lifetime specifications provide improved reliability and are backward compatible with designs requiring the original 2000-hour lifetime. No design changes are necessary.

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