338LBB050M2CC Equivalent & Substitute Parts

Part Overview

The 338LBB050M2CC is a 3300 µF, 50 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the LBB series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring stable capacitance and extended operational life. The part is Active in product status with full RoHS3 compliance and REACH unaffected designation. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, inventory optimization, or component availability management while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Key Parameters

Parameter	Specification
Capacitance	3300 µF
Tolerance	±20%
Voltage - Rated	50 V
Lifetime @ Temperature	3000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Package / Case	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00mm)
Size / Dimension	0.984" Dia (25.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 338LBB050M2CC is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Capacitance: 3300 µF (exact match required)
Voltage Rating: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Lifetime: 3000 Hrs @ 85°C (exact match required)
Operating Temperature: -40°C ~ 85°C (exact match required)
Polarization: Polar (exact match required)
Package / Case: Radial, Can - Snap-In (exact match required)
Mounting Type: Through Hole (exact match required)
Lead Spacing: 0.394" (10.00mm) (exact match required)
Size / Dimension: 0.984" Dia (25.00mm) (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)

Allowable Variation Parameters:

ESR (Equivalent Series Resistance): Variation permitted within component series design specifications
Ripple Current @ Low Frequency: Variation permitted within component series design specifications
Ripple Current @ High Frequency: Variation permitted within component series design specifications
Height - Seated (Max): Variation permitted within mechanical tolerance limits
Manufacturer: Different manufacturers permitted if all other parameters match

All identified substitute parts meet these criteria and are classified as direct or parametric equivalents based on electrical performance alignment.

Parameter Comparison

Parameter	338LBB050M2CC (Cornell Dubilier / Illinois Capacitor)	SLPX332M050C1P3 (Cornell Dubilier Electronics)	380LX332M050J012 (Cornell Dubilier Electronics)	LLS1H332MELA (Nichicon)
Capacitance	3300 µF	3300 µF	3300 µF	3300 µF
Tolerance	±20%	±20%	±20%	±20%
Voltage - Rated	50 V	50 V	50 V	50 V
ESR @ 120Hz	100.48 mOhm	141 mOhm	100 mOhm	Not Specified
Lifetime @ Temp.	3000 Hrs @ 85°C	3000 Hrs @ 85°C	3000 Hrs @ 85°C	3000 Hrs @ 85°C
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Polarization	Polar	Polar	Polar	Polar
Ripple Current @ 120 Hz	2.38 A	2.38 A	2.7 A	2.38 A
Ripple Current @ High Frequency	2.975 A @ 10 kHz	2.98 A @ 20 kHz	3.1 A @ 20 kHz	2.737 A @ 50 kHz
Lead Spacing	0.394" (10.00mm)	0.394" (10.00mm)	0.394" (10.00mm)	0.394" (10.00mm)
Size / Dimension	0.984" Dia (25.00mm)	0.984" Dia (25.00mm)	0.984" Dia (25.00mm)	0.984" Dia (25.00mm)
Height - Seated (Max)	1.063" (27.00mm)	0.984" (25.00mm)	1.063" (27.00mm)	1.063" (27.00mm)
Package / Case	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All four parts listed—338LBB050M2CC, SLPX332M050C1P3, 380LX332M050J012, and LLS1H332MELA—are Active products with full RoHS3 compliance and REACH unaffected status. Each part meets the mandatory electrical and mechanical specifications for 3300 µF, 50 V aluminum electrolytic capacitors in radial, can-style snap-in packages.

SLPX332M050C1P3 (Cornell Dubilier Electronics) is a direct manufacturer equivalent with identical capacitance, voltage, tolerance, and lifetime specifications. The primary distinction is a reduced seated height of 0.984" (25.00mm) compared to 1.063" (27.00mm) on the main part, which may provide space optimization benefits in compact PCB layouts. ESR is specified at 141 mOhm @ 120Hz, representing a measurable increase from the main part's 100.48 mOhm.

380LX332M050J012 (Cornell Dubilier Electronics) is a parametric equivalent with matching seated height of 1.063" (27.00mm) to the main part. ESR is specified at 100 mOhm @ 120Hz, providing performance closely aligned to the main part's 100.48 mOhm specification. Ripple current ratings are elevated at 2.7 A @ 120 Hz and 3.1 A @ 20 kHz.

LLS1H332MELA (Nichicon) is a parametric equivalent from an alternative manufacturer. ESR is not specified in available documentation. Ripple current @ 50 kHz is specified at 2.737 A. Seated height matches the main part at 1.063" (27.00mm).

Selection among these parts is determined by inventory availability, lead time requirements, and specific application performance criteria within the allowable parameter ranges.

Frequently Asked Questions (FAQ)

Q: Can SLPX332M050C1P3 be used as a direct replacement for 338LBB050M2CC in all applications?

A: SLPX332M050C1P3 meets all mandatory electrical specifications and is mechanically compatible. The reduced seated height of 0.984" (25.00mm) versus 1.063" (27.00mm) on the main part requires verification of available PCB clearance. Higher ESR at 141 mOhm @ 120Hz versus 100.48 mOhm should be evaluated for thermal performance in ripple-current-intensive applications.

Q: What is the significance of ESR variation among these substitute parts?

A: Equivalent Series Resistance directly affects heat dissipation and voltage ripple performance. The 338LBB050M2CC and 380LX332M050J012 both specify ESR near 100 mOhm, while SLPX332M050C1P3 specifies 141 mOhm. Applications with high ripple current or thermal constraints should prioritize parts with lower ESR values.

Q: Are all substitute parts suitable for the same temperature range?

A: Yes. All four parts operate across -40°C to 85°C and maintain 3000 hours lifetime at 85°C, meeting identical thermal specifications.

Q: Does the manufacturer change from Cornell Dubilier to Nichicon affect compatibility?

A: No. LLS1H332MELA from Nichicon meets all mandatory electrical and mechanical parameters. Manufacturer selection is determined by supply chain requirements, qualification procedures, and organizational sourcing policies.

Q: What is the impact of different ripple current ratings at high frequency?

A: Ripple current ratings vary by measurement frequency: 338LBB050M2CC is rated 2.975 A @ 10 kHz, SLPX332M050C1P3 is rated 2.98 A @ 20 kHz, 380LX332M050J012 is rated 3.1 A @ 20 kHz, and LLS1H332MELA is rated 2.737 A @ 50 kHz. Applications operating at specific frequency ranges should reference the corresponding ripple current specification for that part.

Q: Are all parts RoHS3 compliant?

A: Yes. All four parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

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