SLPX471M350H3P3 Equivalent & Substitute Parts

Part Overview

The SLPX471M350H3P3 is a 470 µF, 350 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is classified as Active product status and is designed for general-purpose applications requiring polarized capacitive energy storage and filtering. The part operates across a temperature range of -25°C to 85°C with a rated lifetime of 3000 hours at 85°C. Equivalent and substitute parts are identified to address inventory availability, extended temperature performance requirements, or voltage rating upgrades while maintaining functional compatibility within the same mechanical and electrical parameter envelope.

Key Parameters

Parameter	Value	Unit
Capacitance	470	µF
Voltage - Rated	350	V
Tolerance	±20%	-
ESR @ 120 Hz	423	mOhm
Lifetime @ Temperature	3000 Hrs @ 85°C	-
Operating Temperature Range	-25°C to 85°C	-
Lead Spacing	10.00	mm
Diameter	35.00	mm
Height - Seated (Max)	32.00	mm
Package / Case	Radial, Can - Snap-In	-
Mounting Type	Through Hole	-
Polarization	Polar	-

Substitute Part Grouping Explanation

Substitute parts for the SLPX471M350H3P3 are classified into two categories based on electrical and mechanical compatibility:

Voltage-Rated Upgrade Substitutes (400 V Rating): Parts 400MXK470MEFCSN35X30, 400USG470MEFCSN35X30, and EKMS401VSN471MA30S maintain the 470 µF capacitance and ±20% tolerance while increasing the voltage rating to 400 V. These parts share identical mechanical dimensions (35 mm diameter, 32 mm height, 10 mm lead spacing) and through-hole snap-in mounting. The higher voltage rating provides design margin in applications where the original 350 V specification may be marginal.

Voltage-Rated Equivalent Substitutes (350 V Rating): Parts LGN2V471MELC30 and LLS2V471MELC maintain the original 350 V voltage rating with 470 µF capacitance and ±20% tolerance. These parts are mechanically and electrically equivalent to the main part, differing only in manufacturer and internal construction characteristics such as ripple current handling and temperature performance.

All substitute parts conform to the following mandatory compatibility criteria:

Capacitance: 470 µF (fixed)
Tolerance: ±20% (fixed)
Lead Spacing: 10.00 mm (fixed)
Diameter: 35.00 mm (fixed)
Height: 32.00 mm maximum (fixed)
Package: Radial, Can - Snap-In (fixed)
Mounting: Through Hole (fixed)
Polarization: Polar (fixed)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	Tolerance	Lifetime @ Temp	Operating Temp Range	Lead Spacing (mm)	Diameter (mm)	Height (mm)	Package	RoHS Status
SLPX471M350H3P3	Cornell Dubilier Electronics	SLPX	470	350	±20%	3000 Hrs @ 85°C	-25°C to 85°C	10.00	35.00	32.00	Radial, Can - Snap-In	ROHS3 Compliant
LGN2V471MELC30	Nichicon	LGN	470	350	±20%	3000 Hrs @ 105°C	-25°C to 105°C	10.00	35.00	32.00	Radial, Can - Snap-In	ROHS3 Compliant
LLS2V471MELC	Nichicon	LLS	470	350	±20%	3000 Hrs @ 85°C	-25°C to 85°C	10.00	35.00	32.00	Radial, Can - Snap-In	ROHS3 Compliant
400MXK470MEFCSN35X30	Rubycon	MXK	470	400	±20%	3000 Hrs @ 105°C	-25°C to 105°C	10.00	35.00	32.00	Radial, Can - Snap-In	ROHS3 Compliant
400USG470MEFCSN35X30	Rubycon	USG	470	400	±20%	3000 Hrs @ 85°C	-25°C to 85°C	10.00	35.00	32.00	Radial, Can - Snap-In	ROHS3 Compliant
EKMS401VSN471MA30S	Chemi-Con	KMS	470	400	±20%	3000 Hrs @ 105°C	-25°C to 105°C	10.00	35.00	32.00	Radial, Can - Snap-In	RoHS Compliant

Engineering Selection Recommendations

Direct Equivalent Selection (Same Voltage Rating):

LLS2V471MELC (Nichicon) is the parametric equivalent to SLPX471M350H3P3. Both parts operate at 350 V with identical mechanical dimensions and 3000-hour lifetime at 85°C. This part is suitable for direct replacement in applications where the original voltage specification and temperature performance are sufficient. Both parts are ROHS3 compliant.

LGN2V471MELC30 (Nichicon) provides an alternative at the same 350 V rating with extended temperature capability to 105°C and lifetime rating of 3000 hours at 105°C. This part is appropriate for applications requiring higher temperature margin while maintaining the original voltage specification. ROHS3 compliant.

Voltage-Upgraded Selection (400 V Rating):

400USG470MEFCSN35X30 (Rubycon) maintains the 85°C temperature performance envelope of the original part while providing a 400 V voltage rating upgrade. This part is suitable for applications where voltage margin is required without extending the temperature operating range. ROHS3 compliant.

400MXK470MEFCSN35X30 (Rubycon) and EKMS401VSN471MA30S (Chemi-Con) both provide 400 V voltage rating with extended temperature capability to 105°C. These parts are appropriate for applications requiring both voltage and temperature design margin. Both are compliant with RoHS standards.

All substitute parts maintain Active product status and are available in bulk packaging. Selection should be based on specific application voltage requirements, temperature operating conditions, and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can I use a 400 V rated capacitor in place of a 350 V rated capacitor?

A: Yes. A higher voltage rating provides additional design margin and is electrically compatible. The 400 V substitute parts (400MXK470MEFCSN35X30, 400USG470MEFCSN35X30, EKMS401VSN471MA30S) are direct mechanical replacements with identical lead spacing, diameter, and height. The higher voltage rating does not degrade performance in a 350 V application.

Q: What is the difference between LGN2V471MELC30 and LLS2V471MELC?

A: Both are Nichicon 470 µF, 350 V capacitors with identical mechanical dimensions. LGN2V471MELC30 operates to 105°C with 3000-hour lifetime at 105°C. LLS2V471MELC operates to 85°C with 3000-hour lifetime at 85°C. Select LGN2V471MELC30 for applications requiring higher temperature performance.

Q: Are all substitute parts mechanically interchangeable?

A: Yes. All substitute parts share identical lead spacing (10.00 mm), diameter (35.00 mm), height (32.00 mm maximum), and snap-in through-hole mounting. No PCB layout modifications are required for substitution.

Q: What compliance standards apply to these parts?

A: All parts are RoHS compliant (ROHS3 or RoHS Compliant). All parts are REACH Unaffected. All parts carry ECCN classification EAR99 and HTSUS code 8532.22.0040. Moisture Sensitivity Level is Not Applicable for all parts.

Q: Can I substitute based on ripple current requirements?

A: Ripple current specifications are provided for reference but do not determine substitution eligibility. Substitution is based on capacitance, voltage rating, tolerance, mechanical dimensions, and mounting type. Ripple current performance varies by manufacturer and series but does not affect mechanical or electrical compatibility within the specified parameter envelope.

Q: What is the significance of the ±20% tolerance specification?

A: The ±20% tolerance is fixed across all substitute parts. This tolerance applies to the capacitance value and is a standard specification for aluminum electrolytic capacitors in this category. All parts maintain this tolerance specification.

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