SLPX103M025C3P3 Equivalent & Substitute Parts

Part Overview

The SLPX103M025C3P3 is a 10000 µF, 25 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 energy storage in compact form factors. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 3000 hours at 85°C.

Equivalent and substitute parts are identified when they maintain identical or superior electrical performance within the same mechanical constraints, allowing for direct board-level replacement without circuit redesign. Substitutes are necessary when the primary part experiences supply constraints, obsolescence risk, or when alternative manufacturers offer improved specifications within the same application envelope.

Key Parameters

Parameter	Value	Unit	Substitution Criticality
Capacitance	10000	µF	Critical - Must Match
Voltage - Rated	25	V	Critical - Must Match or Exceed
Tolerance	±20%	%	Critical - Must Match
ESR @ 120Hz	60	mOhm	Important - Lower Values Acceptable
Lifetime @ 85°C	3000	Hrs	Important - Equal or Greater Required
Operating Temperature Range	-40 to 85	°C	Critical - Must Match
Lead Spacing	10.00	mm	Critical - Must Match for PCB Compatibility
Package Type	Radial, Can - Snap-In	-	Critical - Must Match
Mounting Type	Through Hole	-	Critical - Must Match
RoHS Status	ROHS3 Compliant	-	Important - Regulatory Requirement

Substitute Part Grouping Explanation

Substitution logic for the SLPX103M025C3P3 is based on the following criteria:

Primary Substitution Parameters:

Capacitance value must equal 10000 µF
Rated voltage must equal 25 V (or higher for backward compatibility)
Tolerance must equal ±20%
Lead spacing must equal 10.00 mm (0.394")
Package configuration must be Radial, Can - Snap-In
Mounting type must be Through Hole
Operating temperature range must encompass -40°C to 85°C

Secondary Performance Parameters:

ESR @ 120Hz: Lower values indicate improved performance; equal or higher values are acceptable within circuit design margins
Ripple current ratings: Higher values indicate superior performance; equal or lower values require circuit verification
Lifetime @ 85°C: Equal or greater values required; 3000 hours is the baseline

Mechanical Compatibility Parameters:

Physical dimensions (diameter and height) may vary provided the component fits within the PCB footprint and mechanical envelope
All substitute parts must maintain the same lead spacing to ensure direct PCB hole compatibility

Substitutes are grouped into two categories:

Category A - Direct Electrical Equivalents (25V Rating): Parts maintaining identical voltage rating, capacitance, and tolerance with potential variations in physical dimensions or ESR characteristics.

Category B - Upgraded Voltage Rating (35V Rating): Parts with elevated voltage rating (35V) that provide backward compatibility with 25V circuits while offering improved voltage margin and typically lower ESR characteristics.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	Tolerance	ESR @ 120Hz (mOhm)	Lifetime @ 85°C (Hrs)	Diameter (mm)	Height (mm)	Lead Spacing (mm)	RoHS Status
SLPX103M025C3P3	CDE	SLPX	10000	25	±20%	60	3000	25.00	30.00	10.00	ROHS3
SLPX103M025A5P3	CDE	SLPX	10000	25	±20%	60	3000	22.00	35.00	10.00	ROHS3
SLPX103M025E1P3	CDE	SLPX	10000	25	±20%	60	3000	30.00	25.00	10.00	ROHS3
380LX103M025H032	CDE	380LX	10000	25	±20%	58	3000	22.00	37.00	10.00	ROHS3
SLPX103M035C7P3	CDE	SLPX	10000	35	±20%	53	3000	25.00	40.00	10.00	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Same Voltage Rating - 25V):

SLPX103M025A5P3, SLPX103M025E1P3, and 380LX103M025H032 are electrically equivalent to the SLPX103M025C3P3. All maintain identical capacitance (10000 µF), voltage rating (25 V), tolerance (±20%), and lead spacing (10.00 mm). Selection among these three depends on mechanical fit within the available PCB space:

SLPX103M025A5P3: Smaller diameter (22.00 mm) with increased height (35.00 mm)
SLPX103M025E1P3: Larger diameter (30.00 mm) with reduced height (25.00 mm)
380LX103M025H032: Smaller diameter (22.00 mm) with maximum height (37.00 mm); features improved ESR (58 mOhm vs. 60 mOhm)

All three parts are ROHS3 compliant and rated for 3000 hours at 85°C, meeting regulatory and reliability requirements.

For Upgraded Voltage Rating (35V):

SLPX103M035C7P3 provides a 35 V rated alternative while maintaining 10000 µF capacitance and ±20% tolerance. This part offers improved ESR performance (53 mOhm vs. 60 mOhm) and higher ripple current capability. The 35 V rating provides additional voltage margin in circuits originally designed for 25 V operation. Physical dimensions are 25.00 mm diameter by 40.00 mm height. This part is suitable for applications requiring enhanced reliability or where circuit voltage margins warrant the larger form factor.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility with the original SLPX103M025C3P3. All parts are classified as Active product status with established supply chains.

Frequently Asked Questions (FAQ)

Q: Can SLPX103M025A5P3 be used as a direct replacement for SLPX103M025C3P3?

A: Yes, SLPX103M025A5P3 is electrically equivalent with identical capacitance, voltage, tolerance, and ESR specifications. The primary difference is physical dimensions: 22.00 mm diameter versus 25.00 mm, and 35.00 mm height versus 30.00 mm. Verify that the PCB footprint and mechanical envelope accommodate the larger height before substitution.

Q: What is the advantage of using SLPX103M035C7P3 over the original SLPX103M025C3P3?

A: SLPX103M035C7P3 maintains identical capacitance and tolerance while providing a higher voltage rating (35 V vs. 25 V). This delivers improved voltage margin in the circuit and lower ESR (53 mOhm vs. 60 mOhm), resulting in reduced heat generation and improved ripple current handling. The trade-off is increased physical height (40.00 mm vs. 30.00 mm).

Q: Are all substitute parts RoHS compliant?

A: Yes, all listed substitute parts are ROHS3 compliant, matching the regulatory status of the original SLPX103M025C3P3.

Q: Can SLPX103M025E1P3 fit in the same PCB hole pattern as SLPX103M025C3P3?

A: Yes, both parts maintain identical lead spacing (10.00 mm), ensuring PCB hole pattern compatibility. However, SLPX103M025E1P3 has a larger diameter (30.00 mm vs. 25.00 mm) and reduced height (25.00 mm vs. 30.00 mm). Verify that the PCB layout accommodates the increased radial dimension.

Q: What does ESR mean and why is lower ESR better?

A: ESR (Equivalent Series Resistance) represents the internal resistance of the capacitor at a specified frequency (120 Hz in this case). Lower ESR values reduce heat dissipation, improve ripple current handling, and enhance overall circuit efficiency. All substitute parts maintain ESR values equal to or lower than the original specification.

Q: Is 380LX103M025H032 from a different manufacturer?

A: No, 380LX103M025H032 is manufactured by Cornell Dubilier Electronics (CDE), the same manufacturer as the original part. The "380LX" series designation indicates a different product line within CDE's portfolio, but maintains equivalent electrical and mechanical specifications.

Q: Can I use a 35V rated capacitor in a circuit designed for 25V?

A: Yes, a 35V rated capacitor is backward compatible with 25V circuits. The higher voltage rating provides additional safety margin and typically offers improved performance characteristics such as lower ESR. No circuit modifications are required.

Q: What is the significance of lead spacing in capacitor substitution?

A: Lead spacing (10.00 mm in this case) determines the distance between the two through-hole connection points on the PCB. All substitute parts maintain this identical spacing, ensuring direct PCB hole compatibility without requiring board redesign or rework.

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