SLP123M035H3P3 Equivalent & Substitute Parts

Part Overview

The SLP123M035H3P3 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 and is designed for general-purpose applications requiring high capacitance values at moderate voltage ratings. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 3000 hours at 105°C. Substitute parts are identified when equivalent electrical parameters and mechanical compatibility allow direct replacement in circuit designs.

Substiute Parts

SLP123M035H3P3

Cornell Dubilier Electronics (CDE)In Stock: 1102SLP123M035H3P3 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

Substitution of aluminum electrolytic capacitors is determined by strict equivalence in the following parameters:

Primary Equivalence Criteria:

• Capacitance value: 12000 µF (exact match required)
• Voltage rating: 35 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Lifetime rating: 3000 Hrs @ 105°C (exact match required)
• Operating temperature range: -40°C ~ 105°C (exact match required)
• Mounting type: Through Hole (exact match required)
• Package type: Radial, Can - Snap-In (exact match required)
• Lead spacing: 0.394" (10.00mm) (exact match required)

Secondary Compatibility Factors:

• Ripple current ratings at specified frequencies
• Physical dimensions (diameter and height)
• Equivalent series resistance (ESR) where specified
• Compliance certifications (RoHS3, REACH)

The identified substitute parts meet all primary equivalence criteria. Variations in physical dimensions and ripple current specifications are within acceptable ranges for general-purpose applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—SLP123M035H3P3, 381LX123M035A022, and 381LX123M035J052—are Active products manufactured by Cornell Dubilier Electronics and carry ROHS3 compliance certification. They are electrically equivalent with identical capacitance, voltage rating, tolerance, lifetime rating, and operating temperature specifications.

Selection Considerations Based on Physical Dimensions:

The 381LX123M035A022 substitute presents the closest physical profile to the main part, with identical diameter (1.378" / 35.00mm) and minimal height variation (1.260" vs. 1.181"). This part is suitable for applications where space constraints are moderate and PCB layout accommodates the specified dimensions.

The 381LX123M035J052 substitute features a smaller diameter (0.984" / 25.00mm) but significantly greater height (2.047" / 52.00mm). This dimensional trade-off is applicable in designs where radial footprint width is constrained but vertical clearance is available.

All substitute parts maintain electrical equivalence in ripple current performance at 120 Hz (3.5 A). The ripple current at 20 kHz differs slightly (4.0 A vs. 4.38 A for the main part), which remains within acceptable operational margins for general-purpose applications.

Frequently Asked Questions (FAQ)

Q: Can the 381LX123M035A022 be used as a direct replacement for the SLP123M035H3P3?

A: Yes. Both parts share identical electrical specifications: 12000 µF capacitance, 35 V rating, ±20% tolerance, 3000 Hrs @ 105°C lifetime, and -40°C to 105°C operating range. Physical dimensions are nearly identical, with the substitute measuring 1.260" height versus 1.181" for the original. Lead spacing is identical at 0.394" (10.00mm), ensuring PCB compatibility.

Q: What is the primary difference between the 381LX123M035A022 and 381LX123M035J052 substitutes?

A: The primary difference is physical form factor. The 381LX123M035A022 maintains a 1.378" diameter with 1.260" height, closely matching the original part's footprint. The 381LX123M035J052 uses a narrower 0.984" diameter but extends to 2.047" in height. Both are electrically identical and mechanically compatible through the same lead spacing and mounting type.

Q: Are there any electrical performance differences between these parts?

A: All three parts are electrically equivalent in capacitance, voltage rating, tolerance, and lifetime specifications. Ripple current at 120 Hz is identical across all parts (3.5 A). Ripple current at 20 kHz shows minor variation: the main part specifies 4.38 A, while both substitutes specify 4.0 A. This difference does not affect general-purpose application performance.

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

A: For applications requiring minimal radial footprint width, the 381LX123M035J052 is appropriate, as its 0.984" diameter is significantly smaller than the original 1.378" diameter. However, this part requires 2.047" of vertical clearance. For applications with moderate space constraints in both dimensions, the 381LX123M035A022 is preferable, as it maintains the original diameter while adding only 0.079" to the height.

Q: Are all three parts RoHS3 compliant?

A: Yes. The SLP123M035H3P3, 381LX123M035A022, and 381LX123M035J052 are all ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the lead spacing for these capacitors?

A: All three parts feature identical lead spacing of 0.394" (10.00mm), ensuring compatibility with existing PCB designs without modification to pad spacing or hole positioning.