338LMB035M2BC Aluminum Electrolytic Capacitor - Equivalent & Substitute Parts

Part Overview

The 338LMB035M2BC is a 3300 µF, 35 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the LMB series. This radial, can-type snap-in capacitor is designed for general-purpose applications requiring stable capacitance and extended operational life. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, application-specific performance needs, or design optimization for ripple current handling and thermal lifetime characteristics.

Key Parameters

Parameter	Value	Unit
Capacitance	3300	µF
Voltage - Rated	35	V
Tolerance	±20%	-
ESR @ 120Hz	200.953	mOhm
Lifetime @ 105°C	3000	Hrs
Operating Temperature Range	-40 to 105	°C
Ripple Current @ 120 Hz	1.43	A
Ripple Current @ 10 kHz	1.788	A
Lead Spacing	0.394 (10.00)	in (mm)
Case Diameter	0.866 (22.00)	in (mm)
Height - Seated (Max)	1.063 (27.00)	in (mm)
Package Type	Radial, Can - Snap-In	-
Mounting Type	Through Hole	-
RoHS Status	ROHS3 Compliant	-
Polarization	Polar	-

Substitute Part Grouping Explanation

Substitute parts for the 338LMB035M2BC are classified into two categories based on electrical and mechanical compatibility:

Upgrade Substitutes - Parts with enhanced voltage rating or thermal lifetime:

381LX332M050H012: Identical capacitance and tolerance; rated voltage increased to 50 V; maintains 3000 Hrs @ 105°C lifetime
LGY1V332MELZ25: Identical capacitance, tolerance, and 35 V rating; extended thermal lifetime to 5000 Hrs @ 105°C

Parametric Equivalents - Parts with identical electrical and mechanical specifications:

381LX332M035H012: Matching 3300 µF, 35 V, ±20% tolerance; identical package and lead spacing; 3000 Hrs @ 105°C
LGU1V332MELZ: Matching 3300 µF, 35 V, ±20% tolerance; identical package and lead spacing; 3000 Hrs @ 105°C

All substitute parts maintain the same physical dimensions (0.866" diameter, 1.063" height, 0.394" lead spacing), radial snap-in package configuration, through-hole mounting, and operating temperature range (-40°C to 105°C). Substitution eligibility is determined by matching capacitance value, tolerance, voltage rating compatibility, and mechanical form factor.

Parameter Comparison

Parameter	338LMB035M2BC (Main)	381LX332M050H012 (Upgrade)	LGY1V332MELZ25 (Upgrade)	381LX332M035H012 (Equivalent)	LGU1V332MELZ (Equivalent)
Manufacturer	Cornell Dubilier / Illinois Capacitor	Cornell Dubilier Electronics (CDE)	Nichicon	Cornell Dubilier Electronics (CDE)	Nichicon
Series	LMB	381LX	LGY	381LX	LGU
Capacitance	3300 µF	3300 µF	3300 µF	3300 µF	3300 µF
Tolerance	±20%	±20%	±20%	±20%	±20%
Voltage - Rated	35 V	50 V	35 V	35 V	35 V
Lifetime @ 105°C	3000 Hrs	3000 Hrs	5000 Hrs	3000 Hrs	3000 Hrs
Operating Temperature	-40 to 105°C	-40 to 105°C	-40 to 105°C	-40 to 105°C	-40 to 105°C
Ripple Current @ 120 Hz	1.43 A	-	1.5 A	1.9 A	1.45 A
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Case Diameter	0.866" (22.00 mm)	0.866" (22.00 mm)	0.866" (22.00 mm)	0.866" (22.00 mm)	0.866" (22.00 mm)
Height - Seated (Max)	1.063" (27.00 mm)	1.063" (27.00 mm)	1.063" (27.00 mm)	1.063" (27.00 mm)	1.063" (27.00 mm)
Package Type	Radial, Can - Snap-In	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	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Polarization	Polar	Polar	Polar	Polar	Polar
Inventory (Pcs)	694	2641	1009	6047	3100

Engineering Selection Recommendations

Direct Parametric Equivalents: 381LX332M035H012 and LGU1V332MELZ are direct substitutes for the 338LMB035M2BC. Both parts maintain identical electrical specifications (3300 µF, 35 V, ±20% tolerance) and mechanical form factor (radial snap-in, 0.394" lead spacing, 0.866" diameter, 1.063" height). Both are Active status products with ROHS3 compliance and REACH unaffected status. Selection between these equivalents is based on manufacturer preference and inventory availability. The 381LX332M035H012 offers higher ripple current capability at 120 Hz (1.9 A vs. 1.43 A) and 20 kHz (2.2 A vs. 1.788 A), making it suitable for applications with elevated ripple current demands. The LGU1V332MELZ provides comparable performance with ripple current ratings of 1.45 A @ 120 Hz and 1.6675 A @ 50 kHz.

Upgrade Substitutes: The 381LX332M050H012 provides voltage rating upgrade to 50 V while maintaining 3300 µF capacitance and identical mechanical specifications. This part is suitable for applications where higher voltage margin is required without changing physical footprint. The LGY1V332MELZ25 offers extended thermal lifetime of 5000 Hrs @ 105°C compared to the standard 3000 Hrs, providing enhanced reliability for long-term operation in elevated temperature environments. This part maintains the 35 V rating and identical mechanical form factor.

All substitute parts are Active status products with full ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance equivalent to the main part.

Frequently Asked Questions (FAQ)

Q: Can 381LX332M050H012 be used as a direct replacement for 338LMB035M2BC? A: Yes. The 381LX332M050H012 is mechanically and electrically compatible. It maintains identical capacitance (3300 µF), tolerance (±20%), and physical dimensions. The 50 V rating is compatible with 35 V applications, providing additional voltage margin. All mechanical parameters including lead spacing (0.394"), case diameter (0.866"), height (1.063"), and snap-in package configuration are identical.

Q: What is the difference between parametric equivalents and upgrade substitutes? A: Parametric equivalents (381LX332M035H012 and LGU1V332MELZ) match all electrical and mechanical specifications of the main part, including voltage rating and thermal lifetime. Upgrade substitutes offer enhanced performance: 381LX332M050H012 provides higher voltage rating (50 V vs. 35 V); LGY1V332MELZ25 provides extended thermal lifetime (5000 Hrs vs. 3000 Hrs @ 105°C).

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed (381LX332M050H012, LGY1V332MELZ25, 381LX332M035H012, and LGU1V332MELZ) are ROHS3 compliant and REACH unaffected, matching the compliance status of the main part 338LMB035M2BC.

Q: Does the snap-in package configuration remain the same across all parts? A: Yes. All parts maintain radial, can-type snap-in package configuration with identical lead spacing (0.394" / 10.00 mm), case diameter (0.866" / 22.00 mm), and seated height (1.063" / 27.00 mm). All are through-hole mounted components suitable for the same PCB footprint.

Q: Which substitute part offers the best ripple current performance? A: The 381LX332M035H012 provides the highest ripple current ratings at 1.9 A @ 120 Hz and 2.2 A @ 20 kHz, compared to the main part's 1.43 A @ 120 Hz and 1.788 A @ 10 kHz. This part is suitable for applications with elevated AC ripple current requirements.

Q: What is the operating temperature range for all substitute parts? A: All substitute parts operate across the identical temperature range of -40°C to 105°C, matching the main part 338LMB035M2BC.

Q: Can LGY1V332MELZ25 be used for applications requiring extended operational life? A: Yes. The LGY1V332MELZ25 provides 5000 Hrs @ 105°C thermal lifetime compared to 3000 Hrs for the main part and most equivalents. This extended lifetime is suitable for applications requiring enhanced reliability in continuous high-temperature operation.

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