381LX331M200H022 Equivalent & Substitute Parts Reference

Part Overview

The 381LX331M200H022 is a 330 µF, 200 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is rated for 3000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part is currently active in production and ROHS3 compliant.

Equivalent and substitute parts are identified to address inventory availability, extended operational lifetime requirements, voltage rating upgrades, or alternative manufacturer sourcing while maintaining electrical and mechanical compatibility within the specified parameter tolerances.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	330	µF	Must match exactly
Voltage - Rated	200	V	Must match or exceed
Tolerance	±20%	%	Must match or be tighter
Lifetime @ Temperature	3000	Hrs @ 105°C	Must meet or exceed
Operating Temperature Range	-40°C ~ 105°C	°C	Must encompass or match
Lead Spacing	0.394"	(10.00 mm)	Must match for PCB compatibility
Size / Dimension (Diameter)	0.866"	(22.00 mm)	Must match or be smaller
Height - Seated (Max)	1.260"	(32.00 mm)	Must match or be shorter
Mounting Type	Through Hole	-	Must match
Package / Case	Radial, Can - Snap-In	-	Must match
Polarization	Polar	-	Must match
RoHS Status	ROHS3 Compliant	-	Must maintain compliance

Substitute Part Grouping Explanation

Substitute parts are classified into four categories based on their relationship to the main part 381LX331M200H022:

Direct Equivalent (Same Manufacturer - CDE): Part 381LX331M200J012 shares identical electrical specifications (330 µF, 200 V, ±20%, 3000 Hrs @ 105°C) and mounting characteristics. The primary difference is physical dimension: diameter increases from 0.866" to 0.984", and height decreases from 1.260" to 1.063". This part is suitable when space constraints permit the larger diameter but benefit from reduced height.

Direct Manufacturer Equivalents (Nichicon): Parts LGN2D331MELZ25, LGR2D331MELZ30, and LGW2D331MELZ25 are Nichicon-manufactured alternatives meeting the core electrical parameters (330 µF, 200 V, ±20%, through-hole, radial snap-in). These parts differ in:

Lifetime rating: LGR2D331MELZ30 offers 10000 Hrs @ 105°C (extended life)
Physical dimensions: LGN2D331MELZ25 and LGW2D331MELZ25 maintain 0.866" diameter but vary in height
Ripple current performance: LGW2D331MELZ25 provides higher ripple current capability (1.97 A @ 120 Hz, 2.955 A @ 50 kHz)

Voltage Upgrade Parts (250 V Rating): Parts 250MXG330MEFCSN22X30 (Rubycon) and LGN2E331MELZ30 (Nichicon) provide 250 V rated voltage while maintaining 330 µF capacitance and ±20% tolerance. These are suitable for applications requiring higher voltage margin or operating in elevated voltage environments. Physical dimensions remain compatible (0.866" diameter, 1.260" height for both).

Parametric Equivalent (Legacy Status): Part B43504A2337M000 (EPCOS - TDK Electronics) meets electrical specifications but carries "Not For New Designs" status. This part includes documented ESR (390 mOhm @ 100 Hz) and impedance (470 mOhms) specifications. Use is restricted to legacy system maintenance or repair applications only.

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance	Lifetime @ 105°C	Diameter (mm)	Height (mm)	Lead Spacing (mm)	Product Status
381LX331M200H022	CDE	330	200	±20%	3000 Hrs	22.00	32.00	10.00	Active
381LX331M200J012	CDE	330	200	±20%	3000 Hrs	25.00	27.00	10.00	Active
LGN2D331MELZ25	Nichicon	330	200	±20%	3000 Hrs	22.00	27.00	10.00	Active
LGR2D331MELZ30	Nichicon	330	200	±20%	10000 Hrs	22.00	32.00	10.00	Active
LGW2D331MELZ25	Nichicon	330	200	±20%	3000 Hrs	22.00	25.00	10.00	Active
250MXG330MEFCSN22X30	Rubycon	330	250	±20%	3000 Hrs	22.00	32.00	10.00	Active
LGN2E331MELZ30	Nichicon	330	250	±20%	3000 Hrs	22.00	32.00	10.00	Active
B43504A2337M000	EPCOS - TDK	330	200	±20%	3000 Hrs	22.00	32.00	10.00	Not For New Designs

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Performance): Select 381LX331M200J012 (CDE) when inventory of the primary part is unavailable and PCB layout permits the increased diameter (25.00 mm vs. 22.00 mm). This part maintains identical electrical specifications and active production status. Height reduction (27.00 mm vs. 32.00 mm) may provide clearance benefits in space-constrained assemblies.

For Extended Operational Life: Select LGR2D331MELZ30 (Nichicon) when application requirements demand extended service life beyond 3000 hours. This part provides 10000 hours @ 105°C rating while maintaining identical physical dimensions (22.00 mm diameter, 32.00 mm height) and electrical parameters. Active production status ensures supply continuity.

For High Ripple Current Applications: Select LGW2D331MELZ25 (Nichicon) when circuit design requires elevated ripple current handling. This part delivers 1.97 A @ 120 Hz and 2.955 A @ 50 kHz, compared to 1.2 A @ 120 Hz and 1.7 A @ 20 kHz for the primary part. Physical dimensions (22.00 mm diameter, 25.00 mm height) provide space optimization. Active production status and high inventory availability (273,782 units) ensure supply security.

For Voltage Margin Enhancement: Select 250MXG330MEFCSN22X30 (Rubycon) or LGN2E331MELZ30 (Nichicon) when circuit design benefits from 250 V rated voltage instead of 200 V. Both parts maintain 330 µF capacitance, ±20% tolerance, and 3000 hours @ 105°C lifetime. Physical dimensions remain compatible (22.00 mm diameter, 32.00 mm height). Both manufacturers maintain active production status.

Legacy System Maintenance Only: Part B43504A2337M000 (EPCOS - TDK Electronics) is restricted to repair and maintenance of existing systems. This part carries "Not For New Designs" status and must not be selected for new product development. Use only when original part replacement is mandatory for legacy equipment.

Compliance Verification: All recommended substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the primary part's regulatory requirements. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for CDE and Rubycon parts; Nichicon parts list MSL as Not Applicable. All parts carry EAR99 ECCN classification and 8532.22.0040 HTSUS code.

Frequently Asked Questions (FAQ)

Q: Can 381LX331M200J012 be used as a direct drop-in replacement for 381LX331M200H022?

A: Electrical substitution is complete. Physical dimensions differ: diameter increases from 22.00 mm to 25.00 mm, and height decreases from 32.00 mm to 27.00 mm. PCB layout must accommodate the larger diameter. Lead spacing (10.00 mm) remains identical, ensuring through-hole compatibility.

Q: What is the primary advantage of LGR2D331MELZ30 over the original part?

A: LGR2D331MELZ30 provides 10000 hours @ 105°C operational lifetime, compared to 3000 hours for 381LX331M200H022. All other electrical parameters (330 µF, 200 V, ±20%) and physical dimensions (22.00 mm diameter, 32.00 mm height) remain identical. This extended life rating is suitable for applications requiring long-term reliability without component replacement.

Q: Why does LGW2D331MELZ25 have higher ripple current ratings?

A: Ripple current capability is determined by internal construction and thermal design. LGW2D331MELZ25 delivers 1.97 A @ 120 Hz and 2.955 A @ 50 kHz versus 1.2 A @ 120 Hz and 1.7 A @ 20 kHz for the primary part. This enhanced performance is suitable for high-frequency switching power supplies and circuits with significant AC current components. Physical dimensions (22.00 mm diameter, 25.00 mm height) provide space optimization.

Q: When should 250 V rated parts (250MXG330MEFCSN22X30 or LGN2E331MELZ30) be selected?

A: Select 250 V rated parts when circuit design operates at voltages approaching 200 V or when system reliability benefits from increased voltage margin. Both parts maintain 330 µF capacitance and ±20% tolerance. Physical dimensions remain compatible (22.00 mm diameter, 32.00 mm height). Voltage upgrade does not compromise performance in 200 V applications.

Q: Is B43504A2337M000 suitable for new product designs?

A: No. B43504A2337M000 carries "Not For New Designs" status and must not be selected for new product development. This part is restricted to legacy system maintenance and repair applications only. Select active-status alternatives (CDE, Nichicon, or Rubycon parts) for all new designs.

Q: What is the inventory status of substitute parts?

A: 381LX331M200J012 (CDE): 5,118 units. LGN2D331MELZ25 (Nichicon): 1,081 units. LGR2D331MELZ30 (Nichicon): 853 units. LGW2D331MELZ25 (Nichicon): 273,782 units. 250MXG330MEFCSN22X30 (Rubycon): 656,850 units. LGN2E331MELZ30 (Nichicon): 700 units. B43504A2337M000 (EPCOS): 1,974 units (legacy only). LGW2D331MELZ25 and 250MXG330MEFCSN22X30 provide highest supply availability.

Q: Do all substitute parts maintain ROHS3 compliance?

A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, matching the primary part's regulatory requirements. ECCN classification (EAR99) and HTSUS code (8532.22.0040) are identical across all parts.

Q: What is the significance of lead spacing (10.00 mm) in substitution?

A: Lead spacing determines PCB hole pattern compatibility. All substitute parts maintain 10.00 mm lead spacing, ensuring through-hole mounting compatibility with existing PCB designs. Physical diameter and height variations do not affect lead spacing or electrical connection points.

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