LP102M250H4P3 Equivalent & Substitute Parts Reference

Part Overview

The LP102M250H4P3 is a 1000 µF, 250 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in the LP series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring through-hole mounting with a 10.00 mm lead spacing. The part is currently active in production and RoHS3 compliant.

Equivalent and substitute parts are necessary when the original LP102M250H4P3 becomes unavailable, when alternative manufacturers are required for supply chain diversification, or when design specifications allow for compatible alternatives with improved performance characteristics such as extended lifetime or reduced equivalent series resistance.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	1000	µF	Critical - must match exactly
Voltage Rating	250	V	Critical - must match or exceed
Tolerance	±20%	%	Critical - must match
Lead Spacing	10.00	mm	Critical - PCB layout compatibility
Package Type	Radial, Can - Snap-In	-	Critical - mechanical fit
Mounting Type	Through Hole	-	Critical - assembly compatibility
Operating Temperature	-40°C ~ 105°C	°C	Critical - thermal environment
ESR @ 120Hz	200	mOhm	Performance - lower is better
Lifetime @ 105°C	1000	Hrs	Performance - longer is better
RoHS Status	ROHS3 Compliant	-	Compliance - required

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following critical parameters:

Critical Parameters (Must Match):

Capacitance: 1000 µF
Voltage Rating: 250 V
Tolerance: ±20%
Lead Spacing: 10.00 mm (0.394")
Package Type: Radial, Can - Snap-In
Mounting Type: Through Hole
Operating Temperature Range: -40°C ~ 105°C
RoHS3 Compliance

Performance Parameters (May Vary):

ESR (Equivalent Series Resistance): Lower values indicate improved performance
Lifetime @ 105°C: Extended lifetime indicates enhanced reliability
Ripple Current Ratings: Higher values indicate greater current handling capability
Physical Dimensions (Diameter and Height): Variations within mechanical envelope constraints

Substitute parts are grouped into two categories:

Direct Substitutes: Parts meeting all critical parameters with identical or superior performance characteristics. These include 381LR102M250A042, 381LR102M250K052, 381LQ102M250K042, and 381LX102M250A042 from CDE, and B43504A2108M000 from EPCOS - TDK Electronics.

Upgrade Substitute: LGR2E102MELC45 from Nichicon, which meets all critical parameters while offering significantly extended lifetime (10000 Hrs @ 105°C versus 1000 Hrs @ 105°C).

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance	ESR @ 120Hz (mOhm)	Lifetime @ 105°C (Hrs)	Diameter (mm)	Height (mm)	Product Status
LP102M250H4P3	CDE	1000	250	±20%	200	1000	35.00	45.00	Active
381LR102M250A042	CDE	1000	250	±20%	149	3000	35.00	42.00	Active
381LQ102M250K042	CDE	1000	250	±20%	166	2000	30.00	42.00	Active
381LR102M250K052	CDE	1000	250	±20%	149	3000	30.00	52.00	Active
381LX102M250A042	CDE	1000	250	±20%	Not Specified	3000	35.00	42.00	Active
381LX102M250K052	CDE	1000	250	±20%	Not Specified	3000	30.00	52.00	Active
LGR2E102MELC45	Nichicon	1000	250	±20%	Not Specified	10000	35.00	45.00	Active
B43504A2108M000	EPCOS - TDK Electronics	1000	250	±20%	130	3000	35.00	42.00	Not For New Designs

Engineering Selection Recommendations

For Active Production Designs:

Select from the following CDE 381 series alternatives, all of which are active products with RoHS3 compliance:

381LR102M250A042: Recommended for space-constrained applications. Offers 3× lifetime extension (3000 Hrs vs. 1000 Hrs) with reduced ESR (149 mOhm vs. 200 mOhm). Maintains original 35.00 mm diameter but reduces height to 42.00 mm.
381LR102M250K052: Recommended when vertical space is available. Provides 3× lifetime extension with reduced ESR. Smaller diameter (30.00 mm) accommodates compact PCB layouts; height extends to 52.00 mm.
381LQ102M250K042: Recommended for moderate performance requirements. Offers 2× lifetime extension (2000 Hrs) with moderate ESR reduction (166 mOhm). Compact footprint: 30.00 mm diameter, 42.00 mm height.
381LX102M250A042 and 381LX102M250K052: Recommended when ESR specification is not critical. Both offer 3× lifetime extension. Available in two form factors: 35.00 mm × 42.00 mm or 30.00 mm × 52.00 mm.

For Extended Reliability Requirements:

LGR2E102MELC45 (Nichicon): Recommended for applications requiring maximum operational lifetime. Provides 10× lifetime extension (10000 Hrs @ 105°C). Maintains original LP102M250H4P3 dimensions (35.00 mm diameter, 45.00 mm height) for direct mechanical compatibility. Active product status with RoHS3 compliance.

Not Recommended for New Designs:

B43504A2108M000 (EPCOS - TDK Electronics): Product status is "Not For New Designs." Although technically compatible and offering superior ESR (130 mOhm) and extended lifetime (3000 Hrs), this part should not be selected for new production designs due to manufacturer discontinuation trajectory.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different physical dimensions?

A: Physical dimensions (diameter and height) must remain within the mechanical envelope constraints of the PCB layout and enclosure. The LP102M250H4P3 measures 35.00 mm diameter × 45.00 mm height. Substitute parts with smaller diameters (30.00 mm) are compatible if PCB spacing permits. Height variations (42.00 mm, 45.00 mm, or 52.00 mm) are acceptable if clearance exists above the component. Verify mechanical fit before design release.

Q: What does ESR (Equivalent Series Resistance) mean for substitution?

A: ESR represents the internal resistance of the capacitor at a specified frequency. Lower ESR values indicate better performance, particularly in high-ripple-current applications. The LP102M250H4P3 specifies 200 mOhm @ 120Hz. Substitute parts with lower ESR (such as 149 mOhm or 130 mOhm) provide improved performance and are directly compatible. Higher ESR values are not acceptable substitutes.

Q: Why do some substitute parts have unspecified ESR values?

A: The 381LX series (381LX102M250A042 and 381LX102M250K052) do not include ESR specifications in the provided technical data. These parts are still valid substitutes because they meet all critical electrical parameters (capacitance, voltage, tolerance, operating temperature) and offer extended lifetime (3000 Hrs @ 105°C). ESR data should be requested from the manufacturer if this parameter is critical to your application.

Q: Is the Nichicon LGR2E102MELC45 a direct replacement?

A: Yes. The LGR2E102MELC45 meets all critical parameters: 1000 µF, 250 V, ±20% tolerance, 10.00 mm lead spacing, radial snap-in package, through-hole mounting, and -40°C to 105°C operating range. It maintains the original 35.00 mm × 45.00 mm dimensions for direct mechanical compatibility. The primary advantage is extended lifetime (10000 Hrs @ 105°C versus 1000 Hrs), making it suitable for applications requiring maximum reliability.

Q: Why is B43504A2108M000 marked "Not For New Designs"?

A: The "Not For New Designs" status indicates that EPCOS - TDK Electronics has discontinued or is discontinuing this product line. While technically compatible and offering superior performance (130 mOhm ESR, 3000 Hrs lifetime), new designs should not incorporate this part to avoid future supply chain disruptions. Select active alternatives from CDE or Nichicon instead.

Q: Can I substitute based on ripple current rating alone?

A: No. Ripple current rating is a performance parameter, not a substitution criterion. All listed substitutes meet the critical parameters (capacitance, voltage, tolerance, lead spacing, package type, mounting type, operating temperature range). Ripple current specifications vary among substitutes but do not prevent substitution. Verify that the substitute's ripple current rating meets or exceeds your application's requirements.

Q: What is the difference between the 381LR and 381LX series?

A: Both series meet all critical substitution parameters. The 381LR series provides specified ESR values (149 mOhm @ 120Hz), while the 381LX series does not include ESR specifications. Both offer 3000 Hrs lifetime @ 105°C. The 381LR series is preferred when ESR performance data is required for circuit analysis. The 381LX series is acceptable when ESR specification is not critical to the application.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant, matching the compliance status of the LP102M250H4P3. This ensures compatibility with regulatory requirements for electronic equipment in applicable markets.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message