LP392M035E1P3 Aluminum Electrolytic Capacitor - Equivalent & Substitute Parts

Part Overview

The LP392M035E1P3 is a 3900 µF, 35 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is designed for general-purpose applications requiring high capacitance values at moderate voltage ratings. The part is currently in active production status with 757 pieces available in new original inventory.

Substitute parts are identified when equivalent electrical and mechanical parameters allow direct replacement in circuit applications while maintaining functional performance and compliance requirements.

Substiute Parts

LP392M035E1P3

Cornell Dubilier Electronics (CDE)In Stock: 861LP392M035E1P3 Datasheet

Current PartRFQ

SLP392M035A3P3

Cornell Dubilier Electronics (CDE)In Stock: 4150SLP392M035A3P3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP392M035E1P3 is determined by the following critical parameters:

Electrical Equivalence Requirements:

• Capacitance value: 3900 µF (exact match required)
• Voltage rating: 35 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)

Mechanical Compatibility Requirements:

• Package type: Radial, Can - Snap-In (exact match required)
• Mounting type: Through Hole (exact match required)
• Lead spacing: 10.00 mm (exact match required)

Compliance Requirements:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

The substitute part SLP392M035A3P3 meets all electrical equivalence and mechanical compatibility requirements. Variations in ESR, lifetime rating, and physical dimensions (diameter and height) do not preclude substitution when the above critical parameters align.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (LP392M035E1P3): The LP392M035E1P3 is recommended for applications where the specified ESR of 108 mOhm @ 120Hz and 1000-hour lifetime rating at 105°C are design requirements. This part maintains active production status and is ROHS3 compliant with REACH unaffected designation, suitable for regulated markets.

Substitute Part Selection (SLP392M035A3P3): The SLP392M035A3P3 is electrically and mechanically equivalent and may be selected when:

• Higher ESR (136 mOhm) is acceptable in the application circuit
• Extended lifetime rating (3000 Hrs @ 105°C) provides operational margin
• Physical dimension variations (smaller diameter 22.00 mm, greater height 30.00 mm) are accommodated in the PCB layout and enclosure design

Both parts maintain identical compliance certifications (ROHS3, REACH unaffected) and moisture sensitivity ratings, ensuring regulatory equivalence.

Frequently Asked Questions (FAQ)

Q: Can SLP392M035A3P3 be used as a direct replacement for LP392M035E1P3?

A: Yes, when circuit design accommodates the physical dimension differences. The substitute part has identical capacitance (3900 µF), voltage rating (35 V), tolerance (±20%), lead spacing (10.00 mm), and package type (Radial, Can - Snap-In). The ESR difference (136 mOhm vs. 108 mOhm) and extended lifetime (3000 Hrs vs. 1000 Hrs @ 105°C) do not prevent substitution but must be verified against application ripple current and thermal requirements.

Q: What are the physical dimension differences between these parts?

A: LP392M035E1P3 has a diameter of 30.00 mm and seated height of 25.00 mm. SLP392M035A3P3 has a diameter of 22.00 mm and seated height of 30.00 mm. Both use identical 10.00 mm lead spacing. PCB layout and mechanical clearance must be verified before substitution.

Q: Are both parts RoHS compliant?

A: Yes. Both LP392M035E1P3 and SLP392M035A3P3 are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for restricted substance use.

Q: What is the significance of the ESR difference?

A: ESR (Equivalent Series Resistance) affects ripple current handling and heat generation. LP392M035E1P3 specifies 108 mOhm @ 120Hz, while SLP392M035A3P3 specifies 136 mOhm. Applications with high ripple current requirements should verify that the higher ESR of the substitute part does not exceed thermal or performance limits.

Q: Does the extended lifetime rating of SLP392M035A3P3 affect substitution decisions?

A: The 3000-hour lifetime rating at 105°C for SLP392M035A3P3 exceeds the 1000-hour rating of LP392M035E1P3. This represents improved reliability margin and does not restrict substitution. Applications requiring specific lifetime guarantees should reference the original design specification.

Q: Are the lead spacings identical?

A: Yes. Both parts have 10.00 mm lead spacing, ensuring PCB footprint compatibility when physical dimensions are accommodated.