108LMX200M2DF Equivalent & Substitute Parts Reference

Part Overview

The 108LMX200M2DF is a 1000 µF, 200 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the LMX series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring stable capacitance and extended operational life. The part is currently active in production with 1144 units in stock. Substitute parts are identified when equivalent capacitance and tolerance specifications are maintained while voltage ratings or performance characteristics may be upgraded, provided mechanical and electrical compatibility is preserved.

Substiute Parts

108LMX200M2DF

Cornell Dubilier / Illinois CapacitorIn Stock: 1237108LMX200M2DF Datasheet

Current PartRFQ

B43644F2108M000

EPCOS - TDK ElectronicsIn Stock: 1443B43644F2108M000 Datasheet

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LGX2E102MELB40

NichiconIn Stock: 273833LGX2E102MELB40 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 108LMX200M2DF are qualified based on the following criteria:

Primary Compatibility Requirements:

• Capacitance: 1000 µF (exact match)
• Tolerance: ±20% (exact match)
• Voltage Rating: Equal to or greater than 200 V
• Package Type: Radial, Can - Snap-In (exact match)
• Lead Spacing: 0.394" (10.00mm) (exact match)
• Case Diameter: 1.181" (30.00mm) (exact match)
• Height - Seated (Max): 1.654" (42.00mm) (exact match)
• Mounting Type: Through Hole (exact match)
• Lifetime @ 105°C: 5000 Hrs (exact match)
• Polarization: Polar (exact match)

Substitution Logic: Substitute parts maintain identical mechanical dimensions and electrical specifications for capacitance, tolerance, and thermal life. Voltage ratings may be upgraded to higher values without affecting circuit compatibility in applications rated at 200 V or below. ESR values and ripple current ratings may vary within acceptable performance ranges for general-purpose applications. All substitute parts maintain RoHS3 compliance and REACH unaffected status.

Parameter Comparison

Engineering Selection Recommendations

B43644F2108M000 (EPCOS - TDK Electronics): This substitute provides a 250 V voltage rating upgrade with significantly lower ESR (90 mOhm @ 100Hz versus 248.7 mOhm @ 120Hz), resulting in improved ripple current handling and reduced heat generation. The extended operating temperature range (-40°C ~ 105°C) provides additional thermal margin. All mechanical dimensions and electrical specifications for capacitance, tolerance, and lifetime are identical. RoHS3 compliance and REACH unaffected status are maintained. This part is suitable for direct replacement in applications where improved performance characteristics are beneficial.

LGX2E102MELB40 (Nichicon): This substitute provides a 250 V voltage rating upgrade with identical mechanical dimensions and capacitance specifications. The operating temperature range matches the main part (-25°C ~ 105°C). Ripple current ratings at both low and high frequencies are specified. ESR data is not provided in the available specifications. RoHS3 compliance and REACH unaffected status are maintained. Inventory availability is significantly higher (273782 units). This part is suitable for direct replacement in applications where voltage upgrade and extended supply availability are required.

Both substitute parts maintain full compatibility with the original 108LMX200M2DF in terms of mechanical fit, electrical function, and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can B43644F2108M000 or LGX2E102MELB40 be used as direct replacements for 108LMX200M2DF?

A: Yes. Both substitute parts maintain identical capacitance (1000 µF), tolerance (±20%), mechanical dimensions (30mm diameter, 42mm height, 10mm lead spacing), package type (radial snap-in), and thermal life (5000 Hrs @ 105°C). The higher voltage ratings (250 V) are compatible with circuits designed for 200 V operation.

Q: What is the difference in ESR between the main part and substitutes?

A: The 108LMX200M2DF has an ESR of 248.7 mOhm @ 120Hz. The B43644F2108M000 has a lower ESR of 90 mOhm @ 100Hz, providing improved ripple current performance. The LGX2E102MELB40 does not specify ESR in the available data.

Q: Are there temperature range differences between these parts?

A: The 108LMX200M2DF and LGX2E102MELB40 both operate from -25°C to 105°C. The B43644F2108M000 extends the lower operating limit to -40°C, providing additional cold-temperature capability.

Q: Do all parts meet RoHS and REACH requirements?

A: Yes. All three parts (108LMX200M2DF, B43644F2108M000, and LGX2E102MELB40) are ROHS3 compliant and REACH unaffected.

Q: What is the lead spacing for these capacitors?

A: All three parts have identical lead spacing of 0.394" (10.00mm), ensuring compatibility with existing PCB layouts designed for the 108LMX200M2DF.

Q: Can these parts be used in high-ripple-current applications?

A: The ripple current capability depends on the specific part. The 108LMX200M2DF supports 2.64 A @ 120 Hz and 3.8808 A @ 50 kHz. The B43644F2108M000 supports 2.56 A @ 100 Hz with lower ESR. The LGX2E102MELB40 supports 2.33 A @ 120 Hz and 3.495 A @ 50 kHz. Selection should be based on circuit ripple current requirements.

Q: What is the packaging format for these parts?

A: All three parts are supplied in radial, can-style snap-in packages for through-hole mounting on PCBs. The B43644F2108M000 is packaged in bulk format, while the 108LMX200M2DF and LGX2E102MELB40 are also available in bulk.