107LMB400M2CC Equivalent & Substitute Parts Reference

Part Overview

The 107LMB400M2CC is a 100 µF, 400 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the LMB series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring through-hole mounting with a 3000-hour lifetime rating at 105°C. The part is currently active in production with 879 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when design requirements demand enhanced performance characteristics such as higher voltage ratings or extended lifetime specifications, or when alternative manufacturers' components are preferred for supply chain diversification and cost optimization.

Substiute Parts

107LMB400M2CC

Cornell Dubilier / Illinois CapacitorIn Stock: 924107LMB400M2CC Datasheet

Current PartRFQ

B43504B9107M000

EPCOS - TDK ElectronicsIn Stock: 2553B43504B9107M000 Datasheet

DirectRFQ

B43509B9107M000

EPCOS - TDK ElectronicsIn Stock: 1280B43509B9107M000 Datasheet

DirectRFQ

B43644B5107M000

EPCOS - TDK ElectronicsIn Stock: 989B43644B5107M000 Datasheet

UpgradeRFQ

LGN2W101MELA25

NichiconIn Stock: 2470LGN2W101MELA25 Datasheet

UpgradeRFQ

381LX101M400J012

Cornell Dubilier Electronics (CDE)In Stock: 2187381LX101M400J012 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 107LMB400M2CC are categorized into three groups based on their relationship to the main part specifications:

Direct Equivalents (Same Voltage Rating - 400V):

• B43504B9107M000 (EPCOS - TDK Electronics)
• B43509B9107M000 (EPCOS - TDK Electronics)
• 381LX101M400J012 (Cornell Dubilier Electronics)

These parts maintain the 400 V rated voltage, 100 µF capacitance, ±20% tolerance, and 3000-hour lifetime at 105°C. All share identical physical dimensions (0.984" diameter, 1.063" height, 10.00mm lead spacing) and radial snap-in package configuration. Differences exist in ESR characteristics and operating temperature ranges, but these do not prevent functional substitution within the specified electrical parameters.

Upgraded Alternatives (Higher Voltage Rating - 450V):

• B43644B5107M000 (EPCOS - TDK Electronics)
• LGN2W101MELA25 (Nichicon)

These parts provide enhanced voltage margin at 450 V rated voltage while maintaining 100 µF capacitance and ±20% tolerance. B43644B5107M000 offers extended lifetime (5000 hours at 105°C versus 3000 hours). Both upgrade options share identical physical dimensions and snap-in package configuration. Higher voltage rating allows operation in applications with greater voltage stress margins.

Substitution Criteria:

• Capacitance: 100 µF (non-negotiable)
• Tolerance: ±20% (minimum acceptable)
• Voltage Rating: 400 V minimum (450 V acceptable as upgrade)
• Package: Radial, Can - Snap-In (required for mechanical compatibility)
• Lead Spacing: 10.00mm (required for PCB footprint)
• Physical Dimensions: 25.00mm diameter, 27.00mm maximum height (required for clearance)
• Mounting: Through Hole (required for assembly method)
• Polarization: Polar (required for circuit function)
• Lifetime: 3000 hours minimum at 105°C (baseline requirement)

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (Same Electrical Performance):

B43509B9107M000 (EPCOS - TDK Electronics) is the preferred direct equivalent. This part maintains all critical electrical parameters: 100 µF capacitance, 400 V voltage rating, ±20% tolerance, and 3000-hour lifetime at 105°C. The part is currently in Active product status, ensuring long-term availability. It features lower ESR (800 mOhm @ 100Hz) compared to the main part, which reduces heat generation. Extended operating temperature range (-40°C to 105°C) provides additional margin for cold-environment applications. ROHS3 compliance and REACH Unaffected status maintain regulatory alignment.

381LX101M400J012 (Cornell Dubilier Electronics) provides an alternative direct equivalent from the same manufacturer family as the main part. This part maintains identical electrical specifications and physical dimensions. It offers slightly higher ripple current capability (700 mA @ 120 Hz and 1 A @ 20 kHz), which may benefit applications with elevated AC stress. Product status is Active with 2087 units in inventory.

B43504B9107M000 (EPCOS - TDK Electronics) is a functional equivalent with lower ESR (880 mOhm @ 100Hz) but carries "Not For New Designs" product status. This designation indicates the manufacturer is phasing out this part. Use only when existing inventory constraints or legacy system requirements necessitate this selection.

For Upgraded Performance:

B43644B5107M000 (EPCOS - TDK Electronics) provides voltage upgrade to 450 V with extended lifetime (5000 hours at 105°C versus 3000 hours). Select this part when applications require enhanced voltage margin or when extended operational life is a design requirement. Active product status ensures availability. Physical compatibility remains identical to the main part.

LGN2W101MELA25 (Nichicon) offers 450 V voltage upgrade with 3000-hour lifetime. This part provides higher ripple current capability at high frequency (986.7 mA @ 50 kHz) compared to the main part. Select when voltage margin improvement is needed without lifetime extension. Active product status with 2402 units in inventory.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment with the main part. No additional compliance verification is required for substitution within the specified electrical and mechanical parameters.

Frequently Asked Questions (FAQ)

Q: Can B43504B9107M000 be used as a direct replacement for 107LMB400M2CC?

A: B43504B9107M000 meets all critical electrical and mechanical parameters for direct substitution: 100 µF capacitance, 400 V voltage rating, ±20% tolerance, identical physical dimensions, and 3000-hour lifetime at 105°C. However, this part carries "Not For New Designs" product status, indicating manufacturer phase-out. Use only when supply constraints require this selection. For new designs, B43509B9107M000 is the preferred EPCOS equivalent.

Q: What is the difference between direct equivalents and upgraded alternatives?

A: Direct equivalents (B43504B9107M000, B43509B9107M000, 381LX101M400J012) maintain the 400 V voltage rating of the main part. Upgraded alternatives (B43644B5107M000, LGN2W101MELA25) increase the voltage rating to 450 V, providing additional voltage margin. Upgraded parts are electrically compatible with 400 V applications but offer enhanced performance headroom. B43644B5107M000 additionally extends lifetime to 5000 hours at 105°C.

Q: Are all substitute parts physically compatible with the original PCB design?

A: Yes. All substitute parts share identical physical specifications: 0.984" (25.00mm) diameter, 1.063" (27.00mm) maximum seated height, and 0.394" (10.00mm) lead spacing. All use radial snap-in package configuration with through-hole mounting. No PCB redesign or mechanical modification is required for substitution.

Q: What is the significance of ESR differences between parts?

A: ESR (Equivalent Series Resistance) affects heat generation and voltage ripple performance. Lower ESR values reduce heat dissipation and improve high-frequency ripple current handling. B43509B9107M000 (800 mOhm @ 100Hz) and B43504B9107M000 (880 mOhm @ 100Hz) feature lower ESR than the main part (4.14466 Ohm @ 120Hz), resulting in improved thermal performance. For applications with high ripple current or thermal constraints, lower-ESR alternatives provide performance benefits.

Q: Can upgraded 450 V parts be used in 400 V applications?

A: Yes. Upgraded parts (B43644B5107M000 and LGN2W101MELA25) rated at 450 V are electrically compatible with 400 V applications. The higher voltage rating provides additional safety margin and does not degrade performance in lower-voltage circuits. Select upgraded alternatives when design requirements include voltage margin enhancement or when extended lifetime (5000 hours for B43644B5107M000) is beneficial.

Q: What is the operating temperature range compatibility?

A: The main part operates from -25°C to 105°C. Direct equivalents B43504B9107M000 and B43509B9107M000 extend the lower limit to -40°C, providing additional cold-temperature margin. Upgraded alternatives B43644B5107M000 and LGN2W101MELA25 also support -40°C operation. For applications requiring operation below -25°C, select EPCOS or Nichicon alternatives. For applications limited to -25°C minimum, all parts are compatible.

Q: Are there inventory considerations for part selection?

A: Current inventory levels are: 107LMB400M2CC (879 units), B43504B9107M000 (2465 units), B43509B9107M000 (1240 units), B43644B5107M000 (906 units), LGN2W101MELA25 (2402 units), and 381LX101M400J012 (2087 units). For immediate availability, LGN2W101MELA25 and B43504B9107M000 offer highest stock levels. For long-term supply security, select parts with Active product status: B43509B9107M000, B43644B5107M000, LGN2W101MELA25, and 381LX101M400J012.

Q: What regulatory compliance applies to all substitute parts?

A: All parts maintain ROHS3 compliance and REACH Unaffected status, matching the main part's regulatory profile. No additional compliance documentation or verification is required when substituting within this part family. All parts are classified under HTSUS 8532.22.0040 and ECCN EAR99.