338LBA050M2CC Aluminum Electrolytic Capacitor - Equivalent & Substitute Parts

Part Overview

The 338LBA050M2CC is a 3300 µF, 50 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the LBA series. This radial, can-style snap-in component is rated for general purpose applications with a lifetime of 2000 hours at 85°C and an operating temperature range of -40°C to 85°C. Equivalent and substitute parts become necessary when the primary component is unavailable, to optimize ESR performance characteristics, or to achieve extended component lifetime ratings in demanding thermal environments.

Key Parameters

Parameter	Value
Capacitance	3300 µF
Voltage Rating	50 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Case Diameter	0.984" (25.00 mm)
Mounting Type	Through Hole
Operating Temperature Range	-40°C to 85°C
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 338LBA050M2CC is determined by exact matching of critical electrical and mechanical parameters. All qualified substitute parts maintain:

Mandatory Matching Parameters:

Capacitance: 3300 µF (exact match required)
Voltage Rating: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Case Diameter: 0.984" to 1.000" (within tolerance)
Mounting Type: Through Hole (exact match required)
Operating Temperature: -40°C to 85°C (minimum requirement)
Polarization: Polar (exact match required)
RoHS Compliance: ROHS3 Compliant (exact match required)

Four substitute parts meet these criteria. Performance characteristics such as ESR, ripple current ratings, and lifetime hours at temperature vary within acceptable ranges for general purpose applications.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	ESR @ 120Hz	Lifetime @ 85°C	Case Dia.	Height (Max)	RoHS Status
338LBA050M2CC	Cornell Dubilier / Illinois Capacitor	LBA	3300 µF	50 V	±20%	175.83 mOhm	2000 Hrs	0.984" (25.00 mm)	1.063" (27.00 mm)	ROHS3
380LX332M050J012	Cornell Dubilier Electronics (CDE)	380LX	3300 µF	50 V	±20%	100 mOhm	3000 Hrs	0.984" (25.00 mm)	1.063" (27.00 mm)	ROHS3
B41231B6338M000	EPCOS - TDK Electronics	B41231	3300 µF	50 V	±20%	Not Specified	2000 Hrs	1.000" (25.40 mm)	1.063" (27.00 mm)	ROHS3
SLPX332M050C1P3	Cornell Dubilier Electronics (CDE)	SLPX	3300 µF	50 V	±20%	141 mOhm	3000 Hrs	0.984" (25.00 mm)	0.984" (25.00 mm)	ROHS3
LLS1H332MELA	Nichicon	LLS	3300 µF	50 V	±20%	Not Specified	3000 Hrs	0.984" (25.00 mm)	1.063" (27.00 mm)	ROHS3

Engineering Selection Recommendations

All listed substitute parts are active products with ROHS3 compliance. Selection criteria should be based on:

Primary Selection Basis: The 380LX332M050J012 (Cornell Dubilier Electronics) provides improved electrical performance with 100 mOhm ESR and extended 3000-hour lifetime rating at 85°C compared to the original 338LBA050M2CC, while maintaining identical mechanical and electrical specifications.

Secondary Selection Basis: The SLPX332M050C1P3 (Cornell Dubilier Electronics) offers a 141 mOhm ESR and 3000-hour lifetime rating, with a reduced seated height of 0.984" (25.00 mm) versus the standard 1.063" (27.00 mm), suitable for applications with constrained vertical clearance.

Equivalent Selection Basis: The B41231B6338M000 (EPCOS - TDK Electronics) and LLS1H332MELA (Nichicon) are electrically equivalent alternatives with 2000-hour and 3000-hour lifetime ratings respectively. The B41231B6338M000 features a slightly larger case diameter of 1.000" (25.40 mm).

All four substitute parts maintain identical lead spacing, voltage rating, capacitance, and tolerance specifications, ensuring direct functional interchangeability within PCB layouts designed for the 338LBA050M2CC.

Frequently Asked Questions (FAQ)

Q: Can these substitute parts be used interchangeably with the 338LBA050M2CC in my application?

A: Yes, provided your PCB layout accommodates the mechanical specifications. All substitute parts share identical lead spacing (0.394" / 10.00 mm) and voltage/capacitance ratings. Verify case diameter and seated height clearances for your specific board design.

Q: What is the significance of ESR (Equivalent Series Resistance) differences?

A: ESR affects ripple current handling capability and heat generation. Lower ESR values (380LX332M050J012 at 100 mOhm) result in reduced power dissipation. Higher ESR values (338LBA050M2CC at 175.83 mOhm) may generate additional heat in high-ripple-current applications.

Q: Does the difference in lifetime hours affect component reliability?

A: Lifetime ratings indicate operational endurance at 85°C. The 3000-hour rated parts (380LX332M050J012, SLPX332M050C1P3, LLS1H332MELA) provide extended service life in thermally demanding environments compared to the 2000-hour rated 338LBA050M2CC and B41231B6338M000.

Q: Are there any spatial constraints I should consider?

A: The SLPX332M050C1P3 has the shortest seated height at 0.984" (25.00 mm) compared to 1.063" (27.00 mm) for most other parts. The B41231B6338M000 has a marginally larger case diameter of 1.000" (25.40 mm) versus 0.984" (25.00 mm) for other options. Verify your PCB clearance requirements.

Q: Are all parts certified for the same regulatory standards?

A: All listed parts are ROHS3 compliant and REACH unaffected. Compliance certifications are equivalent across all options.

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