Equivalent & Substitute Parts for 381LR331M200H022

Part Overview

The 381LR331M200H022 is a 330 µF, 200 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, though 1,081 pieces remain in stock as new original inventory. The part operates across a temperature range of -40°C to 105°C with a 3,000-hour lifetime rating at 105°C and features 452 mOhm equivalent series resistance at 120 Hz. Identification of equivalent and substitute parts is necessary due to the obsolete product status, ensuring design continuity and supply chain alternatives for applications requiring 330 µF capacitance at 200 V with snap-in mounting.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	330	µF	Critical - must match exactly
Voltage Rating	200	V	Critical - minimum requirement
Tolerance	±20%	%	Critical - defines capacitance accuracy
ESR @ 120 Hz	452	mOhm	Important - affects ripple current handling
Lifetime @ 105°C	3000	Hours	Important - defines operational reliability
Operating Temperature Range	-40 to 105	°C	Important - defines environmental limits
Lead Spacing	10.00	mm	Critical - PCB layout compatibility
Package Type	Radial, Can - Snap-In	-	Critical - mechanical mounting requirement
Mounting Type	Through Hole	-	Critical - assembly process compatibility
RoHS Status	ROHS3 Compliant	-	Important - regulatory compliance

Substitute Part Grouping Explanation

Substitution logic for the 381LR331M200H022 is based on the following allowed parameters:

Critical Matching Parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 200 V minimum (equal or higher acceptable)
Tolerance: ±20% (standard tolerance class)
Package Type: Radial, Can - Snap-In (mechanical compatibility)
Mounting Type: Through Hole (assembly process requirement)
Lead Spacing: 10.00 mm (PCB layout compatibility)

Important Compatibility Parameters:

ESR: 452 mOhm @ 120 Hz or lower (affects ripple current performance)
Lifetime @ 105°C: 3000 hours or greater (reliability requirement)
Operating Temperature: -40°C to 105°C minimum (environmental specification)
RoHS Status: ROHS3 Compliant (regulatory requirement)

Substitution Categories:

Direct Substitutes - Same series, same voltage, same physical dimensions, active product status
Upgrade Substitutes - Higher voltage rating (250 V), same capacitance and package, improved reliability
Similar Substitutes - Same capacitance and voltage, different physical dimensions or series, active product status
Parametric Equivalents - Same electrical and mechanical specifications, different manufacturer or series

Parameter Comparison

Direct Substitute: 381LR331M200H012

Parameter	381LR331M200H022 (Main)	381LR331M200H012 (Direct)	Difference
Capacitance	330 µF	330 µF	None
Voltage Rating	200 V	200 V	None
Tolerance	±20%	±20%	None
ESR @ 120 Hz	452 mOhm	Not specified	ESR not provided for substitute
Lifetime @ 105°C	3000 Hrs	3000 Hrs	None
Operating Temperature	-40 to 105°C	-40 to 105°C	None
Lead Spacing	10.00 mm	10.00 mm	None
Size / Diameter	22.00 mm	22.00 mm	None
Height - Seated (Max)	32.00 mm	25.00 mm	7.00 mm shorter
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	None
Product Status	Obsolete	Active	Active status preferred
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	None
Inventory	1,081 Pcs	1,401 Pcs	Higher availability

Upgrade Substitute: 381LR331M250H022

Parameter	381LR331M200H022 (Main)	381LR331M250H022 (Upgrade)	Difference
Capacitance	330 µF	330 µF	None
Voltage Rating	200 V	250 V	+50 V higher rating
Tolerance	±20%	±20%	None
ESR @ 120 Hz	452 mOhm	452 mOhm	None
Lifetime @ 105°C	3000 Hrs	3000 Hrs	None
Operating Temperature	-40 to 105°C	-40 to 105°C	None
Lead Spacing	10.00 mm	10.00 mm	None
Size / Diameter	22.00 mm	22.00 mm	None
Height - Seated (Max)	32.00 mm	32.00 mm	None
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	None
Product Status	Obsolete	Active	Active status preferred
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	None
Inventory	1,081 Pcs	708 Pcs	Lower availability

Upgrade Substitute: 381LX331M250H022

Parameter	381LR331M200H022 (Main)	381LX331M250H022 (Upgrade)	Difference
Capacitance	330 µF	330 µF	None
Voltage Rating	200 V	250 V	+50 V higher rating
Tolerance	±20%	±20%	None
ESR @ 120 Hz	452 mOhm	502 mOhm	+50 mOhm higher
Lifetime @ 105°C	3000 Hrs	3000 Hrs	None
Operating Temperature	-40 to 105°C	-40 to 105°C	None
Lead Spacing	10.00 mm	10.00 mm	None
Size / Diameter	22.00 mm	22.00 mm	None
Height - Seated (Max)	32.00 mm	32.00 mm	None
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	None
Series	381LR	381LX	Different series
Product Status	Obsolete	Active	Active status preferred
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	None
Inventory	1,081 Pcs	925 Pcs	Lower availability

Parametric Equivalent: 381LX331M200H022

Parameter	381LR331M200H022 (Main)	381LX331M200H022 (Parametric)	Difference
Capacitance	330 µF	330 µF	None
Voltage Rating	200 V	200 V	None
Tolerance	±20%	±20%	None
ESR @ 120 Hz	452 mOhm	Not specified	ESR not provided for substitute
Lifetime @ 105°C	3000 Hrs	3000 Hrs	None
Operating Temperature	-40 to 105°C	-40 to 105°C	None
Lead Spacing	10.00 mm	10.00 mm	None
Size / Diameter	22.00 mm	22.00 mm	None
Height - Seated (Max)	32.00 mm	32.00 mm	None
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	None
Series	381LR	381LX	Different series
Product Status	Obsolete	Active	Active status preferred
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	None
Inventory	1,081 Pcs	904 Pcs	Lower availability

Direct Substitute (Alternative Manufacturer): B43504A2337M80

Parameter	381LR331M200H022 (Main)	B43504A2337M80 (EPCOS)	Difference
Capacitance	330 µF	330 µF	None
Voltage Rating	200 V	200 V	None
Tolerance	±20%	±20%	None
ESR @ 120 Hz	452 mOhm @ 120 Hz	390 mOhm @ 100 Hz	Lower ESR, different frequency
Lifetime @ 105°C	3000 Hrs	3000 Hrs	None
Operating Temperature	-40 to 105°C	-40 to 105°C	None
Lead Spacing	10.00 mm	10.00 mm	None
Size / Diameter	22.00 mm	22.00 mm	None
Height - Seated (Max)	32.00 mm	32.20 mm	+0.20 mm
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	None
Manufacturer	Cornell Dubilier Electronics	EPCOS - TDK Electronics	Different manufacturer
Product Status	Obsolete	Active	Active status preferred
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	None
Inventory	1,081 Pcs	898 Pcs	Similar availability

Engineering Selection Recommendations

Primary Recommendation: 381LR331M200H012

The 381LR331M200H012 is the preferred direct substitute for the obsolete 381LR331M200H022. Both parts are manufactured by Cornell Dubilier Electronics within the same 381LR series and maintain identical electrical specifications: 330 µF capacitance, 200 V voltage rating, ±20% tolerance, and 3,000-hour lifetime at 105°C. The primary difference is physical height (25.00 mm versus 32.00 mm), which provides a space advantage in compact designs. The substitute maintains active product status with higher inventory availability (1,401 pieces). Both parts are ROHS3 compliant and suitable for general-purpose applications.

Secondary Recommendation: 381LX331M200H022

The 381LX331M200H022 serves as a parametric equivalent with identical electrical and mechanical specifications to the main part. This part is from the 381LX series and maintains active product status. It provides equivalent performance with 330 µF capacitance, 200 V rating, and 3,000-hour lifetime. The 381LX series represents an alternative product line within Cornell Dubilier Electronics' portfolio, offering design flexibility while maintaining full electrical compatibility.

Upgrade Option: 381LR331M250H022

For applications requiring enhanced voltage margin or improved reliability, the 381LR331M250H022 provides a 250 V rating while maintaining the same 330 µF capacitance, ±20% tolerance, and 3,000-hour lifetime. This upgrade is mechanically identical to the main part (same 22.00 mm diameter and 32.00 mm height) and maintains the same ESR specification (452 mOhm). The higher voltage rating provides additional safety margin in circuits subject to voltage transients or overvoltage conditions.

Alternative Manufacturer Option: B43504A2337M80

The B43504A2337M80 from EPCOS - TDK Electronics provides cross-manufacturer compatibility with identical 330 µF, 200 V specifications and 3,000-hour lifetime. This part features slightly lower ESR (390 mOhm @ 100 Hz versus 452 mOhm @ 120 Hz) and is mechanically compatible with only 0.20 mm height variance (32.20 mm versus 32.00 mm). Active product status and ROHS3 compliance ensure regulatory alignment. This option is suitable for applications where supply chain diversification across manufacturers is required.

Selection Criteria:

For direct replacement with space optimization: Select 381LR331M200H012
For parametric equivalence within same manufacturer: Select 381LX331M200H022
For enhanced voltage margin: Select 381LR331M250H022
For cross-manufacturer compatibility: Select B43504A2337M80

All recommended substitutes maintain ROHS3 compliance, through-hole mounting compatibility, and snap-in package configuration. Selection should be based on specific application requirements regarding physical dimensions, voltage margin, and supply chain preferences.

Frequently Asked Questions (FAQ)

Q1: Can I use 381LR331M200H012 as a direct replacement for 381LR331M200H022?

Yes. Both parts are manufactured by Cornell Dubilier Electronics within the same 381LR series and share identical electrical specifications: 330 µF capacitance, 200 V voltage rating, ±20% tolerance, and 3,000-hour lifetime at 105°C. The primary difference is physical height: 381LR331M200H012 measures 25.00 mm versus 32.00 mm for the main part. This height reduction may provide space advantages in compact PCB layouts. Both parts feature identical 10.00 mm lead spacing and 22.00 mm diameter, ensuring PCB footprint compatibility.

Q2: What is the difference between the 381LR and 381LX series?

The 381LR and 381LX are distinct product series within Cornell Dubilier Electronics' aluminum electrolytic capacitor portfolio. Both series support the same 330 µF, 200 V specifications with 3,000-hour lifetime at 105°C and identical lead spacing (10.00 mm) and diameter (22.00 mm). The 381LX series represents an alternative product line offering equivalent electrical performance. Selection between series should be based on availability, specific application requirements, and design qualification history.

Q3: Can I substitute a 250 V rated capacitor for a 200 V rated capacitor?

Yes. The 381LR331M250H022 and 381LX331M250H022 both provide 250 V ratings and are suitable for applications originally specified for 200 V. Higher voltage ratings provide additional safety margin and are electrically compatible with 200 V circuit designs. The 250 V variants maintain identical 330 µF capacitance, ±20% tolerance, and 3,000-hour lifetime specifications. Physical dimensions remain unchanged (22.00 mm diameter, 32.00 mm height), ensuring mechanical compatibility.

Q4: What does ESR (Equivalent Series Resistance) mean, and why does it matter?

ESR represents the internal resistance of the capacitor at a specified frequency. The main part specifies 452 mOhm @ 120 Hz. Lower ESR values indicate better high-frequency performance and reduced heat generation under ripple current conditions. The B43504A2337M80 alternative offers 390 mOhm @ 100 Hz, representing improved ESR performance. For general-purpose applications, ESR differences within this range are typically acceptable. Applications with high ripple current requirements should prioritize lower ESR specifications.

Q5: Are all recommended substitutes RoHS3 compliant?

Yes. All recommended substitute parts—381LR331M200H012, 381LX331M200H022, 381LR331M250H022, 381LX331M250H022, and B43504A2337M80—are ROHS3 compliant. This compliance ensures compatibility with regulatory requirements for lead-free manufacturing and restricted hazardous substances. The main part 381LR331M200H022 is also ROHS3 compliant.

Q6: What is the significance of the snap-in package type?

The snap-in package type indicates mechanical mounting via a snap-fit mechanism rather than solder connections. This design allows for tool-free installation and removal, facilitating field service and component replacement. All recommended substitutes maintain the radial, can snap-in package configuration, ensuring mechanical compatibility with existing PCB designs and assembly fixtures. Lead spacing of 10.00 mm is consistent across all alternatives.

Q7: Why is the main part 381LR331M200H022 listed as obsolete?

Obsolete status indicates that the manufacturer has discontinued production of this specific part number. However, 1,081 pieces remain available as new original inventory. Obsolescence typically occurs due to product line consolidation, series updates, or market demand shifts. Active alternatives such as 381LR331M200H012 and 381LX331M200H022 provide equivalent functionality and ensure long-term supply chain continuity.

Q8: Can I use 381LX331M200J012 as a substitute?

The 381LX331M200J012 shares identical electrical specifications (330 µF, 200 V, ±20% tolerance, 3,000-hour lifetime) but differs in physical dimensions. This part measures 0.984" (25.00 mm) in diameter and 1.063" (27.00 mm) in height, compared to the main part's 0.866" (22.00 mm) diameter and 1.260" (32.00 mm) height. The larger diameter may not fit existing PCB layouts designed for 22.00 mm components. Mechanical compatibility must be verified before selection.

Q9: What is the operating temperature range, and why is it important?

The operating temperature range of -40°C to 105°C defines the environmental conditions under which the capacitor functions within specification. The 105°C upper limit is the reference temperature for the 3,000-hour lifetime rating. All recommended substitutes maintain this identical temperature range, ensuring compatibility with applications across industrial, commercial, and consumer temperature environments. Temperature derating may apply for continuous operation near the upper limit.

Q10: How do I verify physical compatibility before ordering a substitute?

Verify the following parameters against your PCB design:

Lead spacing: 10.00 mm (distance between pins)
Diameter: 22.00 mm (radial can width)
Height: 32.00 mm (seated height for main part; 25.00 mm for 381LR331M200H012)
Package type: Radial, Can - Snap-In
Mounting type: Through Hole

Measure existing component positions and clearances to confirm that substitute dimensions do not interfere with adjacent components or enclosure constraints. The 381LR331M200H012 offers a 7.00 mm height reduction, which may provide design advantages in space-constrained applications.

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