477LBA250M2BF Equivalent & Substitute Parts

Part Overview

The 477LBA250M2BF is a 470 µF, 250 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the LBA series. This through-hole radial, snap-in can component features a rated lifetime of 2000 hours at 85°C and operates across a temperature range of -40°C to 85°C. The part is ROHS3 compliant and currently in active product status with 680 units available in stock. Equivalent and substitute parts are identified based on matching electrical specifications (capacitance, voltage rating, and tolerance) and mechanical compatibility (form factor, lead spacing, mounting type).

Substiute Parts

477LBA250M2BF

Cornell Dubilier / Illinois CapacitorIn Stock: 709477LBA250M2BF Datasheet

Current PartRFQ

LLS2E471MELZ

NichiconIn Stock: 995LLS2E471MELZ Datasheet

DirectRFQ

250MXG470MEFCSN22X40

RubyconIn Stock: 1017250MXG470MEFCSN22X40 Datasheet

UpgradeRFQ

B43508E2477M000

EPCOS - TDK ElectronicsIn Stock: 842341B43508E2477M000 Datasheet

UpgradeRFQ

LGN2E471MELZ40

NichiconIn Stock: 1294LGN2E471MELZ40 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 477LBA250M2BF are selected based on equivalence in the following critical parameters:

• Electrical Match: Capacitance value (470 µF), voltage rating (250 V), and tolerance (±20%) must be identical
• Mechanical Compatibility: Package style (Radial, Can - Snap-In), lead spacing (0.394" / 10.00 mm), physical diameter (0.866" / 22.00 mm), and mounting type (Through Hole) must be maintained
• Polarization: All substitutes must be polar electrolytic capacitors
• Regulatory Compliance: All parts must be ROHS3 compliant

Four substitute parts meet these core equivalence criteria. These are classified into two groups:

Direct Equivalent (Same Thermal Rating):

• LLS2E471MELZ (Nichicon LLS series) - maintains the 2000-3000 hour thermal profile at 85°C with matching form factor

Enhanced Substitutes (Upgraded Thermal Performance):

• 250MXG470MEFCSN22X40 (Rubycon MXG series) - extended temperature range to 105°C with 3000-hour lifetime
• LGN2E471MELZ40 (Nichicon LGN series) - extended temperature range to 105°C with 3000-hour lifetime
• B43508E2477M000 (EPCOS B43508 series) - extended temperature range to 105°C with 3000-hour lifetime and lower ESR (250 mOhm @ 100 Hz)

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are in active product status and fully ROHS3 compliant, meeting regulatory requirements for direct replacement in general-purpose applications.

For applications requiring equivalent performance characteristics: The LLS2E471MELZ (Nichicon LLS series) provides direct electrical and thermal equivalence with identical operating temperature range (-40°C to 85°C) and extended lifetime (3000 hours at 85°C). This part is suitable for direct substitution in existing designs without thermal margin constraints.

For applications with extended thermal or reliability requirements: The 250MXG470MEFCSN22X40 (Rubycon), LGN2E471MELZ40 (Nichicon), and B43508E2477M000 (EPCOS) all offer extended temperature operation to 105°C with 3000-hour lifetime specifications. These parts are suitable for applications requiring higher temperature margins or improved reliability. The B43508E2477M000 additionally provides specified ESR (250 mOhm @ 100 Hz), lower than the original part's ESR specification, offering improved high-frequency performance.

Mechanical fit considerations: The LLS2E471MELZ features a reduced height (1.378" / 35.00 mm versus 1.654" / 42.00 mm) while maintaining identical electrical specifications and lead spacing. This makes it suitable for applications with spatial constraints.

Frequently Asked Questions (FAQ)

Q: Are these parts true electrical equivalents or upgrades? A: The LLS2E471MELZ is a direct electrical equivalent with matching capacitance, voltage, and tolerance. The 250MXG470MEFCSN22X40, LGN2E471MELZ40, and B43508E2477M000 are upgrades offering extended temperature range (to 105°C) and longer thermal lifetime (3000 hours), while maintaining identical electrical specifications.

Q: Can I use the upgraded parts in place of the 477LBA250M2BF? A: Yes. All substitute parts maintain identical capacitance, voltage rating, tolerance, lead spacing, and mounting type. The upgraded parts provide superior thermal performance within the same mechanical package envelope.

Q: Does the height difference of the LLS2E471MELZ affect compatibility? A: The LLS2E471MELZ is 0.276" (7.00 mm) shorter than the original part. This creates additional clearance in the application but does not create interference issues. Verify available height in your specific board layout.

Q: Are all substitutes RoHS3 compliant? A: Yes. All parts listed are ROHS3 compliant and meet current regulatory requirements.

Q: What is the significance of ESR in substitute selection? A: The B43508E2477M000 specifies ESR of 250 mOhm @ 100 Hz, which is lower than the original 477LBA250M2BF (529.11 mOhm @ 120 Hz). Lower ESR provides reduced ripple voltage and improved transient response in power supply and filtering applications.

Q: Which substitute offers the best reliability? A: All four parts are in active product status. The three upgraded options (Rubycon, Nichicon LGN, and EPCOS) offer 3000-hour lifetime ratings at 105°C, compared to the original 2000-hour rating at 85°C, indicating longer service life under elevated temperature conditions.