UES1H010MDM Equivalent & Substitute Parts

Part Overview

The UES1H010MDM is a 1 µF, 50 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 1000 hours at 85°C and is designed for audio applications. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity.

Key Parameters

Parameter	Value
Capacitance	1 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ Temperature	1000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Bi-Polar
Lead Spacing	0.079" (2.00mm)
Package / Case	Radial, Can
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the UES1H010MDM is determined by the following critical parameters:

Capacitance: Must be 1 µF (exact match required)
Voltage Rating: Minimum 50 V (equal or higher voltage ratings are acceptable)
Tolerance: ±20% (standard tolerance match)
Package / Case: Radial, Can with 0.079" (2.00mm) lead spacing
Mounting Type: Through Hole
Polarization: Bi-Polar
Physical Dimensions: 0.197" Dia (5.00mm) with maximum seated height of 0.492" to 0.512"
RoHS Compliance: ROHS3 Compliant

Substitute parts are grouped into two categories based on voltage rating and thermal performance:

Category 1 - 50V Rated Substitutes: UEP1H010MDD (Nichicon), 50NXA1MEFC5X11 (Rubycon). These maintain the original 50 V voltage specification with improved thermal performance (1000 Hrs @ 105°C).

Category 2 - 100V Rated Substitutes: UEP2A010MDD (Nichicon), UVP2A010MDD (Nichicon), 105BPS100M (Cornell Dubilier / Illinois Capacitor). These provide higher voltage margin with enhanced thermal and ripple current ratings.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	Lifetime @ Temp.	Operating Temp. Range	Lead Spacing	Size / Dimension	Height (Max)	Product Status	RoHS Status
UES1H010MDM	Nichicon	1 µF	50 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.079" (2.00mm)	0.197" Dia (5.00mm)	0.492" (12.50mm)	Obsolete	ROHS3 Compliant
UEP1H010MDD	Nichicon	1 µF	50 V	±20%	1000 Hrs @ 105°C	-55°C ~ 105°C	0.079" (2.00mm)	0.197" Dia (5.00mm)	0.492" (12.50mm)	Obsolete	ROHS3 Compliant
50NXA1MEFC5X11	Rubycon	1 µF	50 V	±20%	1000 Hrs @ 105°C	-55°C ~ 105°C	0.079" (2.00mm)	0.197" Dia (5.00mm)	0.492" (12.50mm)	Active	ROHS3 Compliant
UEP2A010MDD	Nichicon	1 µF	100 V	±20%	1000 Hrs @ 105°C	-55°C ~ 105°C	0.079" (2.00mm)	0.197" Dia (5.00mm)	0.492" (12.50mm)	Obsolete	ROHS3 Compliant
UVP2A010MDD	Nichicon	1 µF	100 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.079" (2.00mm)	0.197" Dia (5.00mm)	0.492" (12.50mm)	Obsolete	ROHS3 Compliant
105BPS100M	Cornell Dubilier / Illinois Capacitor	1 µF	100 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.079" (2.00mm)	0.197" Dia (5.00mm)	0.512" (13.00mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Voltage Rating)

The 50NXA1MEFC5X11 (Rubycon, Active status) is the preferred direct substitute. It maintains the 50 V voltage specification, matches all physical dimensions and lead spacing, and is currently in active production with ROHS3 compliance. The UEP1H010MDD (Nichicon) is an alternative but is obsolete.

For Enhanced Thermal Performance

The UVP2A010MDD (Nichicon) provides doubled thermal lifetime (2000 Hrs @ 85°C) while maintaining the original operating temperature range (-40°C ~ 85°C). Physical dimensions remain identical. This part is suitable for applications requiring extended reliability at elevated temperatures.

For Higher Voltage Margin

The UEP2A010MDD (Nichicon) and 105BPS100M (Cornell Dubilier / Illinois Capacitor) both provide 100 V rating. The 105BPS100M is currently in active production and offers 2000 Hrs @ 85°C thermal rating. The 105BPS100M has a maximum seated height of 0.512" (13.00mm), which is 0.020" taller than the original specification and must be verified for PCB clearance.

All substitute parts are ROHS3 compliant and maintain bi-polar polarization with ±20% tolerance.

Frequently Asked Questions (FAQ)

Q: Can I use a 100 V rated capacitor in place of the 50 V UES1H010MDM?

A: Yes. Higher voltage ratings are electrically compatible and provide additional safety margin. The 100 V substitutes (UEP2A010MDD, UVP2A010MDD, 105BPS100M) are direct functional replacements. Verify PCB layout clearance, as the 105BPS100M has a maximum height of 0.512" versus the original 0.492".

Q: What is the difference between the 50 V and 100 V substitute options?

A: The 50 V substitutes (UEP1H010MDD, 50NXA1MEFC5X11) maintain the original voltage specification. The 100 V substitutes provide higher voltage headroom and generally offer improved thermal performance (2000 Hrs @ 85°C for UVP2A010MDD and 105BPS100M). Selection depends on circuit voltage requirements and thermal environment.

Q: Is the 50NXA1MEFC5X11 available for new designs?

A: Yes. The 50NXA1MEFC5X11 (Rubycon, Series NXA) is in active production status, making it suitable for both replacement and new design applications.

Q: Are all substitutes physically interchangeable?

A: All substitutes share identical lead spacing (0.079" / 2.00mm), diameter (0.197" / 5.00mm), and mounting type (Through Hole, Radial Can). The 105BPS100M has a maximum seated height of 0.512" compared to 0.492" for other parts. Verify PCB clearance before substitution.

Q: Do all substitutes meet RoHS compliance?

A: Yes. All listed substitutes are ROHS3 compliant and REACH unaffected, matching the original part's environmental certifications.

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