478LBA050M2CE Equivalent & Substitute Parts

Part Overview

The 478LBA050M2CE is a 4700 µF, 50 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the LBA series. This radial, can-style snap-in capacitor is designed for general-purpose applications with a rated lifetime of 2000 hours at 85°C and an operating temperature range of -40°C to 85°C. The part is Active in product status and ROHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and application requirements where alternative manufacturers or enhanced specifications are necessary.

Key Parameters

Parameter	Value
Capacitance	4700 µF
Voltage - Rated	50 V
Tolerance	±20%
ESR @ 120Hz	123.46 mOhm
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Ripple Current @ 120 Hz	2.86 A
Ripple Current @ 10 kHz	3.575 A
Lead Spacing	0.394" (10.00 mm)
Package / Case	Radial, Can - Snap-In
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts are classified into four categories based on substitution relationship and electrical parameters:

Upgrade Parts (Higher Voltage Rating): Parts with identical capacitance and tolerance but rated for higher voltage (63 V instead of 50 V). These provide enhanced voltage margin and are pin-compatible with identical mechanical dimensions and lead spacing.

Direct Equivalents (Same Voltage Rating): Parts with identical capacitance, voltage rating, and tolerance from alternative manufacturers. These maintain the same electrical specifications and mechanical form factor.

Similar Parts (Extended Lifetime or Lower ESR): Parts with identical capacitance and voltage rating but offering improved performance characteristics such as extended lifetime at elevated temperature or reduced equivalent series resistance.

Parametric Equivalents (Matching Core Specifications): Parts meeting the core electrical requirements of capacitance, voltage, and tolerance with compatible mechanical packaging.

Substitution is determined by the following key parameters:

Capacitance: 4700 µF (exact match required)
Voltage Rating: 50 V (minimum; 63 V acceptable as upgrade)
Tolerance: ±20% (exact match required)
Package / Case: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	ESR @ 120Hz	Lifetime @ Temp	Operating Temp Range	Ripple Current @ 120Hz	Lead Spacing	Height (Max)	Substitution Type
478LBA050M2CE	Cornell Dubilier / Illinois Capacitor	LBA	4700 µF	50 V	±20%	123.46 mOhm	2000 Hrs @ 85°C	-40°C ~ 85°C	2.86 A	0.394" (10.00 mm)	1.457" (37.00 mm)	Main Part
478LBA063M2CE	Cornell Dubilier / Illinois Capacitor	LBA	4700 µF	63 V	±20%	105.82 mOhm	2000 Hrs @ 85°C	-40°C ~ 85°C	3.59 A	0.394" (10.00 mm)	1.457" (37.00 mm)	Upgrade
B41231B6478M000	EPCOS - TDK Electronics	B41231	4700 µF	50 V	±20%	Not Specified	2000 Hrs @ 85°C	-40°C ~ 85°C	3.98 A	0.394" (10.00 mm)	1.457" (37.00 mm)	Direct Equivalent
SLPX472M050C3P3	Cornell Dubilier Electronics (CDE)	SLPX	4700 µF	50 V	±20%	99 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	3.07 A	0.394" (10.00 mm)	1.181" (30.00 mm)	Similar
380LQ472M063J032	Cornell Dubilier Electronics (CDE)	380LQ	4700 µF	63 V	±20%	88 mOhm	2000 Hrs @ 85°C	-40°C ~ 85°C	3.59 A	0.394" (10.00 mm)	1.457" (37.00 mm)	Upgrade
LGY1H472MELA35	Nichicon	LGY	4700 µF	50 V	±20%	Not Specified	5000 Hrs @ 105°C	-40°C ~ 105°C	2.1 A	0.394" (10.00 mm)	1.457" (37.00 mm)	Similar
380LX472M050J022	Cornell Dubilier Electronics (CDE)	380LX	4700 µF	50 V	±20%	110 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	3.0 A	0.394" (10.00 mm)	1.260" (32.00 mm)	Similar
ELH478M050AR3AA	KEMET	ELH	4700 µF	50 V	±20%	Not Specified	2000 Hrs @ 85°C	-40°C ~ 85°C	3.0 A	0.394" (10.00 mm)	1.457" (37.00 mm)	Parametric Equivalent

Engineering Selection Recommendations

For Direct Replacement (Same Specifications): The B41231B6478M000 (EPCOS - TDK Electronics) and ELH478M050AR3AA (KEMET) are parametric equivalents meeting identical electrical and mechanical specifications. Both are Active products with ROHS3 compliance and 2000-hour lifetime at 85°C. Selection between these and the main part depends on procurement availability and supply chain requirements.

For Voltage Margin Enhancement: The 478LBA063M2CE and 380LQ472M063J032 provide 63 V rating while maintaining 4700 µF capacitance and ±20% tolerance. Both are pin-compatible with identical lead spacing and mounting type. The 380LQ472M063J032 offers lower ESR (88 mOhm versus 105.82 mOhm), providing improved ripple current handling. Both are Active products with ROHS3 compliance.

For Extended Lifetime or Reduced ESR: The SLPX472M050C3P3 and 380LX472M050J022 offer 3000-hour lifetime at 85°C compared to the 2000-hour rating of the main part. The SLPX472M050C3P3 provides the lowest ESR at 99 mOhm. The LGY1H472MELA35 (Nichicon) extends lifetime to 5000 hours at 105°C with expanded operating temperature range to 105°C, suitable for high-temperature applications.

Mechanical Fit Considerations: The SLPX472M050C3P3 has a reduced height of 1.181" (30.00 mm) compared to the standard 1.457" (37.00 mm). The 380LX472M050J022 has an intermediate height of 1.260" (32.00 mm). Verify PCB layout clearance before selection if height is a constraint.

Compliance and Regulatory: All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory status of the main part 478LBA050M2CE.

Frequently Asked Questions (FAQ)

Q: Can I use a 63 V rated capacitor in place of a 50 V capacitor? A: Yes. The 478LBA063M2CE and 380LQ472M063J032 are direct mechanical and electrical substitutes with higher voltage rating. Higher voltage rating provides additional safety margin and does not degrade performance in 50 V applications. Verify circuit design does not depend on the specific voltage rating.

Q: What is the difference between the main part and SLPX472M050C3P3? A: Both have identical capacitance (4700 µF), voltage (50 V), and tolerance (±20%). The SLPX472M050C3P3 offers extended lifetime (3000 hours versus 2000 hours at 85°C), lower ESR (99 mOhm versus 123.46 mOhm), and reduced height (1.181" versus 1.457"). ESR reduction improves ripple current performance.

Q: Are all substitute parts through-hole mounted? A: Yes. All parts listed are through-hole mounted with 0.394" (10.00 mm) lead spacing, maintaining identical PCB footprint compatibility with the main part 478LBA050M2CE.

Q: Which substitute offers the best performance for high-temperature applications? A: The LGY1H472MELA35 (Nichicon) is rated for 5000 hours at 105°C with operating temperature range extended to 105°C, compared to 2000 hours at 85°C for the main part. This part is suitable for applications requiring extended lifetime in elevated temperature environments.

Q: What does ESR mean and why does it matter? A: ESR (Equivalent Series Resistance) is measured at 120 Hz and represents internal resistance. Lower ESR improves ripple current handling and reduces heat generation. The main part has 123.46 mOhm ESR; substitutes range from 88 mOhm to 110 mOhm where specified.

Q: Can I substitute parts with different heights? A: Height differences exist among substitutes: main part and most upgrades are 1.457" (37.00 mm), SLPX472M050C3P3 is 1.181" (30.00 mm), and 380LX472M050J022 is 1.260" (32.00 mm). Verify PCB layout and component clearance before selecting a part with different height.

Q: Are all substitute parts in stock? A: Inventory status is provided for reference only and subject to change. Verify current availability with your supplier before finalizing procurement decisions.

Q: What is the difference between "Direct Equivalent" and "Parametric Equivalent"? A: Direct equivalents are from alternative manufacturers with identical specifications. Parametric equivalents meet core electrical requirements (capacitance, voltage, tolerance) and mechanical compatibility but may have minor variations in ESR or ripple current specifications where not explicitly stated.

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