SLP123M035C9P3 Equivalent & Substitute Parts Reference

Part Overview

The SLP123M035C9P3 is a 12000 µF, 35 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is classified as Active product status and is designed for general purpose applications requiring high capacitance values in compact form factors. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 3000 hours at 105°C. Identifying equivalent and substitute parts becomes necessary when managing inventory constraints, addressing supply chain disruptions, or accommodating design revisions that permit alternative mechanical or electrical configurations within specified tolerance bands.

Substiute Parts

SLP123M035C9P3

Cornell Dubilier Electronics (CDE)In Stock: 1124SLP123M035C9P3 Datasheet

Current PartRFQ

381LX123M035A022

Cornell Dubilier Electronics (CDE)In Stock: 2675381LX123M035A022 Datasheet

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381LX123M035J052

Cornell Dubilier Electronics (CDE)In Stock: 3486381LX123M035J052 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SLP123M035C9P3 are identified based on strict electrical and mechanical parameter matching. All substitute candidates must satisfy the following non-negotiable criteria:

Electrical Parameters (Must Match Exactly):

• Capacitance: 12000 µF
• Voltage Rating: 35 V
• Tolerance: ±20%
• Operating Temperature Range: -40°C to 105°C minimum
• Lifetime: 3000 hours at 105°C minimum
• Ripple Current Ratings: Must meet or exceed 3.5 A @ 120 Hz and 4.38 A @ 20 kHz

Mechanical Parameters (Must Match Exactly):

• Package Type: Radial, Can - Snap-In
• Mounting Type: Through Hole
• Lead Spacing: 0.394 inches (10.00 mm)

Compliance Parameters:

• RoHS3 Compliant status
• REACH Unaffected status
• Active product status

The two substitute parts identified (381LX123M035A022 and 381LX123M035J052) meet all electrical specifications. Physical dimensions vary within acceptable ranges for snap-in can packages, as the snap-in mounting mechanism accommodates dimensional tolerance in diameter and height while maintaining consistent lead spacing and electrical performance.

Parameter Comparison

Engineering Selection Recommendations

All three parts—SLP123M035C9P3, 381LX123M035A022, and 381LX123M035J052—carry Active product status from Cornell Dubilier Electronics and maintain full ROHS3 compliance and REACH Unaffected designation. Selection between these parts is determined by mechanical fit requirements within the target application.

SLP123M035C9P3 presents a can diameter of 0.984 inches (25.00 mm) and seated height of 1.969 inches (50.00 mm). This configuration is suitable for applications with standard compact mounting envelopes.

381LX123M035J052 matches the SLP123M035C9P3 can diameter of 0.984 inches (25.00 mm) but provides a slightly increased seated height of 2.047 inches (52.00 mm). This part accommodates applications requiring marginally taller component clearance while maintaining identical lead spacing and electrical performance.

381LX123M035A022 features a larger can diameter of 1.378 inches (35.00 mm) with a reduced seated height of 1.260 inches (32.00 mm). This geometry is appropriate for applications where horizontal space is constrained but vertical clearance is available.

All three parts deliver equivalent electrical performance across the specified operating range. The ripple current ratings of 381LX123M035A022 and 381LX123M035J052 (4 A @ 20 kHz) remain within acceptable tolerance of the SLP123M035C9P3 specification (4.38 A @ 20 kHz) for general purpose applications. Selection should be based on available PCB real estate and mechanical mounting constraints.

Frequently Asked Questions (FAQ)

Q: Can 381LX123M035A022 be used as a direct replacement for SLP123M035C9P3?

A: 381LX123M035A022 is electrically equivalent and meets all specified electrical parameters. However, the larger can diameter (1.378 inches versus 0.984 inches) requires verification of available horizontal PCB space. Lead spacing remains identical at 0.394 inches (10.00 mm), ensuring through-hole compatibility. Physical fit must be confirmed before substitution.

Q: What is the difference in ripple current handling between the main part and substitute parts?

A: SLP123M035C9P3 specifies 4.38 A ripple current at 20 kHz. Both 381LX123M035A022 and 381LX123M035J052 specify 4 A at 20 kHz. For general purpose applications, this 0.38 A difference is within acceptable operating margins. Applications requiring maximum ripple current capacity should retain the SLP123M035C9P3.

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

A: Yes. All three parts operate across -40°C to 105°C and maintain 3000 hours lifetime at 105°C. Temperature performance is identical across all candidates.

Q: Do the substitute parts maintain the same lead spacing?

A: Yes. All three parts maintain 0.394 inches (10.00 mm) lead spacing. PCB footprints are directly compatible regardless of can diameter or height variations.

Q: Which substitute part should be selected for space-constrained applications?

A: 381LX123M035A022 provides the lowest seated height at 1.260 inches (32.00 mm), making it suitable for applications with limited vertical clearance. The larger diameter (1.378 inches) requires horizontal space verification. 381LX123M035J052 maintains the original diameter while providing slightly increased height (2.047 inches).

Q: Are all parts RoHS and REACH compliant?

A: Yes. SLP123M035C9P3, 381LX123M035A022, and 381LX123M035J052 are all ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component procurement.

Q: What is the ESR specification for the substitute parts?

A: ESR data is not provided for 381LX123M035A022 and 381LX123M035J052 in the available specifications. SLP123M035C9P3 specifies 44 mOhm @ 120 Hz. For applications where ESR is a critical parameter, contact the manufacturer for complete specifications on substitute parts.