Equivalent & Substitute Parts for UVR2E010MED

Part Overview

The UVR2E010MED is a 1 µF, 250 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 2000 hours at 85°C, serving general-purpose applications requiring polar capacitive filtering.

Key Parameters

Parameter	Value
Capacitance	1 µF
Voltage Rating	250 V
Tolerance	±20%
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.098" (2.50 mm)
Case Diameter	0.248" (6.30 mm)
Operating Temperature Range	-40°C to 85°C
Lifetime Rating	2000 Hrs @ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Primary Compatibility Criteria:

Capacitance: 1 µF (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Mounting Type: Through Hole (exact match required)
Lead Spacing: 0.098" (2.50 mm) (exact match required)
Case Diameter: 0.248" (6.30 mm) (exact match required)
Package Type: Radial, Can (exact match required)

Secondary Compatibility Criteria (Upgradeable Parameters):

Voltage Rating: Equal to or greater than 250 V
Operating Temperature Range: Equal to or greater than -40°C to 85°C
Lifetime Rating: Equal to or greater than 2000 Hrs @ 85°C
Ripple Current Ratings: Equal to or greater than specified values

Substitute parts are grouped into three categories: Upgrade (enhanced performance parameters), Direct (equivalent parameters), and Similar (matching core specifications with minor variations).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Temp Range	Lifetime @ Temp	Height (Max)	Product Status	RoHS
UVR2E010MED	Nichicon	1 µF	250 V	±20%	-40°C ~ 85°C	2000 Hrs @ 85°C	0.492" (12.50 mm)	Obsolete	ROHS3
UPS2E010MED	Nichicon	1 µF	250 V	±20%	-40°C ~ 105°C	2000 Hrs @ 105°C	0.492" (12.50 mm)	Obsolete	ROHS3
250PK1MEFC6.3X11	Rubycon	1 µF	250 V	±20%	-40°C ~ 85°C	2000 Hrs @ 85°C	0.512" (13.00 mm)	Active	ROHS3
400LEX1MEFC6.3X11	Rubycon	1 µF	400 V	±20%	-40°C ~ 125°C	4000 Hrs @ 125°C	0.512" (13.00 mm)	Active	ROHS3
400LLE1MEFC6.3X11	Rubycon	1 µF	400 V	±20%	-40°C ~ 105°C	12000 Hrs @ 105°C	0.512" (13.00 mm)	Active	ROHS3
ESMG351ELL1R0MF11D	Chemi-Con	1 µF	350 V	±20%	-40°C ~ 85°C	2000 Hrs @ 85°C	0.492" (12.50 mm)	Active	ROHS3
ESMQ401ELL1R0MF11D	Chemi-Con	1 µF	400 V	±20%	-40°C ~ 85°C	2000 Hrs @ 85°C	0.492" (12.50 mm)	Active	ROHS3
ECA-2EM010	Panasonic Electronic Components	1 µF	250 V	±20%	-25°C ~ 85°C	2000 Hrs @ 85°C	0.480" (12.20 mm)	Active	ROHS3

Engineering Selection Recommendations

Direct Equivalent (Active Status): The 250PK1MEFC6.3X11 from Rubycon provides direct electrical and mechanical equivalence to the UVR2E010MED. Both parts share identical capacitance, voltage rating, tolerance, and operating temperature specifications. The height difference of 0.020" (0.50 mm) is within typical PCB layout tolerances for through-hole radial components. This part carries active product status and ROHS3 compliance.

Upgraded Performance Options (Active Status): The 400LEX1MEFC6.3X11 and 400LLE1MEFC6.3X11 from Rubycon offer enhanced voltage ratings (400 V versus 250 V) and extended operating temperature ranges. The 400LLE1MEFC6.3X11 provides the highest reliability with 12000 hours lifetime at 105°C. Both parts maintain ROHS3 compliance and active product status. These options are suitable for applications requiring higher voltage margins or extended thermal performance.

The ESMQ401ELL1R0MF11D from Chemi-Con provides 400 V rating with active product status and ROHS3 compliance, maintaining the original height specification of 0.492" (12.50 mm).

Nichicon Upgrade Path (Obsolete Status): The UPS2E010MED from Nichicon offers improved thermal performance with extended operating range to 105°C, though it remains classified as obsolete. This part is suitable only when manufacturer continuity within the Nichicon product line is required.

Similar Specification (Active Status): The ECA-2EM010 from Panasonic provides equivalent electrical specifications with active product status and ROHS3 compliance. The operating temperature range begins at -25°C rather than -40°C, which may be acceptable depending on application requirements. Height is 0.480" (12.20 mm), slightly shorter than the original specification.

Frequently Asked Questions (FAQ)

Q: Can I use a 400 V rated capacitor in place of a 250 V rated capacitor? A: Yes. A higher voltage rating provides additional safety margin and is electrically compatible. The 400 V parts (400LEX1MEFC6.3X11, 400LLE1MEFC6.3X11, ESMQ401ELL1R0MF11D) are direct substitutes for the 250 V UVR2E010MED in any application circuit.

Q: What is the significance of the height difference between substitute parts? A: The UVR2E010MED has a maximum seated height of 0.492" (12.50 mm). Substitute parts with heights up to 0.512" (13.00 mm) represent a 0.020" (0.50 mm) increase. This difference must be evaluated against PCB clearance requirements, component spacing, and enclosure constraints. The ECA-2EM010 at 0.480" (12.20 mm) is shorter and presents no height concerns.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed carry ROHS3 compliance certification, matching the original UVR2E010MED specification.

Q: What does "obsolete" product status mean for the UVR2E010MED? A: Obsolete status indicates that Nichicon has discontinued manufacturing and distribution of this part. Active substitute parts from other manufacturers (Rubycon, Chemi-Con, Panasonic) are recommended for new designs and production continuity.

Q: Which substitute part offers the longest operational lifetime? A: The 400LLE1MEFC6.3X11 from Rubycon provides 12000 hours lifetime at 105°C, compared to 2000 hours at 85°C for the original part. This represents a six-fold improvement in rated lifetime under elevated temperature conditions.

Q: Can I use the ECA-2EM010 if my application requires operation below -25°C? A: No. The ECA-2EM010 operating temperature range begins at -25°C, whereas the UVR2E010MED operates to -40°C. For applications requiring -40°C operation, use 250PK1MEFC6.3X11, ESMG351ELL1R0MF11D, ESMQ401ELL1R0MF11D, or the Rubycon 400 V series parts.

Q: Are lead spacing and case diameter identical across all substitute parts? A: Yes. All substitute parts maintain the 0.098" (2.50 mm) lead spacing and 0.248" (6.30 mm) case diameter, ensuring direct PCB footprint compatibility with the original UVR2E010MED.

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