Equivalent & Substitute Parts for 400PX2.2MEFC8X11.5

Part Overview

The Rubycon 400PX2.2MEFC8X11.5 is a 2.2 µF, 400 V aluminum electrolytic capacitor in radial, can package rated for 1000 hours at 105°C. This component is classified as Active and suitable for general purpose applications. Alternative parts may be required due to inventory constraints, extended lifetime requirements, or design optimization needs for specific operating conditions.

Key Parameters

Parameter	Value
Capacitance	2.2 µF
Tolerance	±20%
Voltage - Rated	400 V
Lifetime @ Temperature	1000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar
Lead Spacing	0.138" (4.60mm)
Size / Dimension	0.315" Dia (8.00mm)
Height - Seated (Max)	0.512" (13.00mm)
Mounting Type	Through Hole
Package / Case	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

Capacitance: 2.2 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage - Rated: 400 V (exact match required)
Polarization: Polar (exact match required)
Lead Spacing: 0.138" (4.60mm) (exact match required)
Size / Dimension: 0.315" Dia (8.00mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: Radial, Can (exact match required)

Substitute parts are grouped into three categories based on provided specifications:

Direct Equivalents maintain identical electrical and mechanical parameters with variations in lifetime rating and operating temperature range.

Upgrade Equivalents provide extended lifetime ratings (15000 Hrs @ 105°C) while maintaining all core electrical and mechanical specifications.

Parametric Equivalents meet all critical electrical and mechanical requirements but originate from different manufacturers or series designations.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Lifetime @ Temp.	Operating Temp.	Height (Max)	Ripple Current @ 120 Hz	Product Status	RoHS Status
400PX2.2MEFC8X11.5	Rubycon	PX	2.2 µF	400 V	1000 Hrs @ 105°C	-40°C ~ 105°C	0.512" (13.00mm)	31 mA	Active	ROHS3 Compliant
400LEX2.2MEFC8X11.5	Rubycon	LEX	2.2 µF	400 V	5000 Hrs @ 125°C	-40°C ~ 125°C	0.531" (14.60mm)	40 mA	Active	ROHS3 Compliant
400LLE2.2MEFC8X11.5	Rubycon	LLE	2.2 µF	400 V	15000 Hrs @ 105°C	-40°C ~ 105°C	0.512" (13.00mm)	40 mA	Active	ROHS3 Compliant
400LLE2R2MEFC8X11.5	Rubycon	LLE	2.2 µF	400 V	15000 Hrs @ 105°C	-40°C ~ 105°C	0.512" (13.00mm)	40 mA	Active	ROHS3 Compliant
ULD2G2R2MPD	Nichicon	ULD	2.2 µF	400 V	15000 Hrs @ 105°C	-40°C ~ 105°C	0.531" (14.60mm)	40 mA	Not For New Designs	ROHS3 Compliant
EKMG401ELL2R2MHB5D	Chemi-Con	KMG	2.2 µF	400 V	1000 Hrs @ 105°C	-40°C ~ 105°C	0.512" (13.00mm)	26 mA	Obsolete	ROHS3 Compliant
UVY2G2R2MPD	Nichicon	UVY	2.2 µF	400 V	1000 Hrs @ 105°C	-40°C ~ 105°C	0.512" (13.00mm)	27 mA	Not For New Designs	ROHS3 Compliant

Engineering Selection Recommendations

For Active Product Status: The Rubycon 400LLE2.2MEFC8X11.5 and 400LLE2R2MEFC8X11.5 are recommended as primary substitutes. Both are Active products with extended lifetime ratings of 15000 Hrs @ 105°C, providing superior reliability compared to the original 400PX2.2MEFC8X11.5 (1000 Hrs @ 105°C). These parts maintain identical mechanical footprint and electrical specifications.

For Extended Temperature Operation: The Rubycon 400LEX2.2MEFC8X11.5 supports operation up to 125°C with a lifetime rating of 5000 Hrs @ 125°C, suitable for applications requiring elevated temperature performance. Height dimension increases to 0.531" (14.60mm).

For Inventory Availability: The Rubycon 400LLE2R2MEFC8X11.5 offers the highest inventory level (99967 Pcs) with Active product status and extended lifetime specifications.

For Discontinued Designs: The Nichicon ULD2G2R2MPD and UVY2G2R2MPD are classified as Not For New Designs and Obsolete respectively. These parts meet parametric equivalence but should not be selected for new designs. The Chemi-Con EKMG401ELL2R2MHB5D is Obsolete and should be avoided.

All substitute parts maintain ROHS3 compliance and are suitable for general purpose applications.

Frequently Asked Questions (FAQ)

Q: Can 400LEX2.2MEFC8X11.5 be used as a direct replacement for 400PX2.2MEFC8X11.5?

A: Yes, the 400LEX2.2MEFC8X11.5 is electrically and mechanically compatible. It provides superior lifetime performance (5000 Hrs @ 125°C vs. 1000 Hrs @ 105°C) and extended operating temperature range (-40°C ~ 125°C). The seated height increases from 0.512" to 0.531", which must be verified against PCB layout constraints.

Q: What is the difference between 400LLE2.2MEFC8X11.5 and 400LLE2R2MEFC8X11.5?

A: Both parts are identical in electrical and mechanical specifications. Both are Rubycon LLE series with 15000 Hrs @ 105°C lifetime rating. The 400LLE2R2MEFC8X11.5 has significantly higher inventory availability (99967 Pcs vs. 1492 Pcs).

Q: Why are ULD2G2R2MPD and UVY2G2R2MPD listed if they are Not For New Designs or Obsolete?

A: These parts meet all parametric equivalence criteria for the 400PX2.2MEFC8X11.5. They are included for reference in legacy system maintenance or repair scenarios only. New designs must use Active status parts.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all listed substitute parts maintain ROHS3 compliance. The Nichicon ULD2G2R2MPD is REACH Affected; all other parts are REACH Unaffected.

Q: What is the maximum ripple current difference among substitutes?

A: Ripple current @ 120 Hz ranges from 26 mA (EKMG401ELL2R2MHB5D) to 40 mA (400LEX2.2MEFC8X11.5, 400LLE2.2MEFC8X11.5, 400LLE2R2MEFC8X11.5, ULD2G2R2MPD). The original 400PX2.2MEFC8X11.5 is rated at 31 mA @ 120 Hz.

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