381EL101M350J012 Equivalent & Substitute Parts

Part Overview

The 381EL101M350J012 is a 100 µF, 350 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is classified as obsolete, indicating discontinued production and limited availability. The part operates across a temperature range of -25°C to 105°C with a rated lifetime of 7000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance and ripple current handling.

Due to its obsolete status, identifying equivalent substitute parts is essential for system maintenance, repair, and redesign applications. Substitute parts must maintain electrical compatibility while accounting for dimensional and performance variations inherent to alternative series.

Substiute Parts

381EL101M350J012

Cornell Dubilier Electronics (CDE)In Stock: 1082381EL101M350J012 Datasheet

Current PartRFQ

381LX101M350H022

Cornell Dubilier Electronics (CDE)In Stock: 910381LX101M350H022 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 381EL101M350J012 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Capacitance: 100 µF (exact match required)
• Voltage Rating: 350 V (minimum; higher ratings acceptable)
• Tolerance: ±20% (standard tolerance for aluminum electrolytic capacitors)
• Polarization: Polar (must match)

Mechanical Compatibility Requirements:

• Mounting Type: Through Hole (radial leads)
• Package / Case: Radial, Can - Snap-In (form factor and lead configuration)
• Lead Spacing: 0.394" (10.00 mm) (PCB hole pattern compatibility)

Performance Considerations:

• Operating Temperature Range: -25°C to 105°C (minimum requirement)
• Ripple Current Ratings: Must support application-specific AC current demands
• ESR and Lifetime: Secondary parameters affecting circuit performance and reliability

The substitute part 381LX101M350H022 meets all electrical and mechanical compatibility criteria. Dimensional variations in diameter and height are acceptable provided the snap-in mounting interface remains compatible with the PCB footprint.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 381EL101M350J012 is obsolete, while the 381LX101M350H022 is active. Selection of the active substitute part ensures continued availability for future procurement and system support.

Compliance and Certification: Both parts maintain ROHS3 compliance and unlimited MSL rating, confirming suitability for standard manufacturing and storage environments without moisture sensitivity constraints.

Electrical Equivalence: The substitute part maintains identical capacitance, voltage rating, tolerance, and operating temperature range. Ripple current ratings of the substitute part equal or exceed the original specification, confirming adequate performance in AC ripple environments.

Mechanical Considerations: Lead spacing remains identical at 0.394" (10.00 mm), ensuring PCB footprint compatibility. Dimensional variations in can diameter and height do not affect electrical function or snap-in mounting interface compatibility, provided the PCB layout accommodates the increased height of 1.260" (32.00 mm) versus the original 0.984" (25.00 mm).

Performance Trade-off: The substitute part specifies 3000 hours lifetime at 105°C compared to the original 7000 hours. This reduction in rated lifetime should be evaluated against application duty cycle and system reliability requirements.

Frequently Asked Questions (FAQ)

Q: Can the 381LX101M350H022 be used as a direct replacement for the 381EL101M350J012?

A: Yes, the 381LX101M350H022 is electrically and mechanically compatible. Both parts share identical capacitance (100 µF), voltage rating (350 V), tolerance (±20%), operating temperature range (-25°C to 105°C), and lead spacing (0.394" / 10.00 mm). The substitute part's ripple current ratings meet or exceed the original specification. Verify that the increased height of 1.260" (32.00 mm) does not conflict with PCB layout constraints.

Q: What are the key differences between these two parts?

A: The primary differences are: (1) Product status—381EL101M350J012 is obsolete while 381LX101M350H022 is active; (2) Can diameter—25.00 mm versus 22.00 mm; (3) Height—25.00 mm versus 32.00 mm; (4) Rated lifetime—7000 hours versus 3000 hours at 105°C; (5) ESR specification—1.47 Ohm @ 120 Hz for the original versus not specified for the substitute.

Q: Will the dimensional differences affect PCB assembly?

A: Lead spacing remains identical, ensuring hole pattern compatibility. The reduced diameter (22.00 mm) and increased height (32.00 mm) of the substitute part require verification against PCB layout clearances, particularly in confined spaces or near adjacent components. Confirm that the snap-in mounting interface aligns with the PCB receptacle design.

Q: Is the reduced lifetime rating of the substitute part a concern?

A: The substitute part specifies 3000 hours at 105°C compared to 7000 hours for the original. This reduction should be evaluated based on application duty cycle, ambient temperature exposure, and system reliability targets. For applications with continuous high-temperature operation, the reduced lifetime may impact maintenance intervals or component replacement schedules.

Q: Are both parts RoHS compliant?

A: Yes, both the 381EL101M350J012 and 381LX101M350H022 are ROHS3 compliant, confirming compliance with restricted substance regulations for manufacturing and environmental standards.

Q: What is the significance of the MSL rating?

A: Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity constraints. These components do not require special moisture control during storage, handling, or assembly, simplifying logistics and manufacturing processes.