LP123M035H7P3 Aluminum Electrolytic Capacitor - Equivalent & Substitute Parts

Part Overview

The LP123M035H7P3 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 1000 hours at 105°C. Substitute parts become necessary when design requirements demand extended operational lifetime, alternative physical dimensions, or when primary inventory availability is constrained.

Substiute Parts

LP123M035H7P3

Cornell Dubilier Electronics (CDE)In Stock: 849LP123M035H7P3 Datasheet

Current PartRFQ

381LX123M035A022

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

UpgradeRFQ

381LX123M035J052

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the LP123M035H7P3 is based on strict electrical and mechanical parameter matching. All substitute parts must maintain identical capacitance (12000 µF), voltage rating (35 V), tolerance (±20%), polarization (Polar), and mounting specifications (Through Hole, Radial Can Snap-In, 0.394" lead spacing).

The identified substitute parts belong to the 381LX series from Cornell Dubilier Electronics and satisfy these core requirements. The primary differentiator among substitutes is the lifetime rating at 105°C: the LP series provides 1000 hours, while the 381LX series provides 3000 hours. Physical dimensions vary between substitute options, with one maintaining the original diameter (1.378" / 35.00mm) but reducing height, and another altering both diameter and height while maintaining the same lead spacing and footprint compatibility.

All substitute parts maintain ROHS3 compliance, identical operating temperature range (-40°C to 105°C), and general-purpose application suitability.

Parameter Comparison

Engineering Selection Recommendations

381LX123M035A022 (Upgrade Substitute)

This part is suitable for applications requiring extended operational lifetime. The 381LX123M035A022 provides 3000 hours at 105°C compared to the LP123M035H7P3's 1000 hours, representing a threefold increase in rated service life. Physical dimensions are nearly identical to the main part, with the diameter maintained at 1.378" (35.00mm) and height reduced to 1.260" (32.00mm). This configuration may provide space advantages in height-constrained designs while maintaining the same footprint. All electrical parameters, compliance certifications (ROHS3, REACH Unaffected), and operating specifications align with the main part. Current inventory shows 2620 pieces available.

381LX123M035J052 (Similar Substitute)

This part also provides 3000 hours lifetime at 105°C. The primary distinction is physical geometry: diameter is reduced to 0.984" (25.00mm) while height increases to 2.047" (52.00mm). Despite dimensional differences, the lead spacing remains 0.394" (10.00mm), maintaining PCB footprint compatibility. This configuration is applicable in designs where radial space is constrained but vertical clearance is available. All electrical specifications, compliance status, and operating parameters match the main part. Current inventory shows 3438 pieces available.

Both substitute parts maintain Active product status and full regulatory compliance. Selection between them depends on available PCB space geometry and application-specific lifetime requirements.

Frequently Asked Questions (FAQ)

Q: Can the 381LX123M035A022 be used as a direct replacement for the LP123M035H7P3?

A: Yes, the 381LX123M035A022 is electrically and mechanically compatible. Both parts share identical capacitance (12000 µF), voltage rating (35 V), tolerance (±20%), lead spacing (0.394" / 10.00mm), and mounting type (Through Hole, Radial Can Snap-In). The primary difference is extended lifetime (3000 hours versus 1000 hours at 105°C) and reduced height (1.260" versus 1.575"). Verify available vertical clearance on the PCB before substitution.

Q: What is the difference between the two substitute parts?

A: Both 381LX123M035A022 and 381LX123M035J052 provide identical electrical specifications and 3000-hour lifetime ratings. The difference is physical form factor. The 381LX123M035A022 maintains the original diameter (1.378" / 35.00mm) with reduced height (1.260" / 32.00mm). The 381LX123M035J052 has a smaller diameter (0.984" / 25.00mm) but greater height (2.047" / 52.00mm). Both maintain the same 0.394" (10.00mm) lead spacing for PCB compatibility.

Q: Are all three parts ROHS3 compliant?

A: Yes. The LP123M035H7P3, 381LX123M035A022, and 381LX123M035J052 are all ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited) and REACH Unaffected status.

Q: Does the LP123M035H7P3 have specified ESR values for the substitute parts?

A: The LP123M035H7P3 specifies ESR at 35 mOhm @ 120 Hz. The substitute parts (381LX123M035A022 and 381LX123M035J052) do not provide ESR specifications in the available data. If ESR is a critical design parameter, verify with the manufacturer before substitution.

Q: Can I substitute based on physical dimensions alone?

A: No. Physical dimensions must be verified for PCB layout compatibility, but electrical parameters are equally critical. All three parts maintain identical capacitance, voltage rating, tolerance, and lead spacing. Verify that your PCB layout accommodates the substitute part's diameter and height before implementation.

Q: What is the operating temperature range for all parts?

A: All three parts operate across -40°C to 105°C. This range is identical across the LP123M035H7P3 and both 381LX substitutes.