477LBA250M2DD Equivalent & Substitute Parts

Part Overview

The 477LBA250M2DD is a 470 µF, 250 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the LBA series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring through-hole mounting. The part is currently active in production with 829 pieces in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when design requirements demand improved performance characteristics such as extended lifetime or lower equivalent series resistance, or when alternative manufacturers' components meet identical electrical and mechanical specifications for system compatibility.

Substiute Parts

477LBA250M2DD

Cornell Dubilier / Illinois CapacitorIn Stock: 925477LBA250M2DD Datasheet

Current PartRFQ

LLS2E471MELB

NichiconIn Stock: 1486LLS2E471MELB Datasheet

DirectRFQ

SLPX471M250E1P3

Cornell Dubilier Electronics (CDE)In Stock: 4104SLPX471M250E1P3 Datasheet

DirectRFQ

381LX471M250K022

Cornell Dubilier Electronics (CDE)In Stock: 3578381LX471M250K022 Datasheet

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B43504B2477M000

EPCOS - TDK ElectronicsIn Stock: 1500B43504B2477M000 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 477LBA250M2DD is determined by strict equivalence in the following parameters:

• Capacitance: 470 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: 250 V (exact match required)
• Polarization: Polar (exact match required)
• Package / Case: Radial, Can - Snap-In (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)
• Size / Dimension: 1.181" Dia (30.00mm) (exact match required)
• Mounting Type: Through Hole (exact match required)

All substitute parts listed meet these core electrical and mechanical requirements. Secondary performance parameters such as ESR, ripple current, lifetime at temperature, and operating temperature range may vary within acceptable engineering tolerances for the application category.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Same Electrical and Mechanical Specifications)

The LLS2E471MELB (Nichicon) and SLPX471M250E1P3 (Cornell Dubilier) are direct functional equivalents to the 477LBA250M2DD. Both parts maintain identical capacitance, voltage rating, tolerance, operating temperature range, and package dimensions. The LLS2E471MELB offers extended lifetime (3000 hours at 85°C versus 2000 hours), while the SLPX471M250E1P3 provides both extended lifetime and lower ESR (423 mOhm versus 529.11 mOhm at 120 Hz). Both substitute parts are active products suitable for new designs.

Upgraded Performance Options

The 381LX471M250K022 (Cornell Dubilier) and B43504B2477M000 (EPCOS - TDK) offer extended operating temperature range (-40°C to 105°C) and extended lifetime (3000 hours at 105°C). These parts are physically compatible with identical lead spacing and diameter but feature different seated heights (1.260" matching the original versus 0.984" for the Nichicon and SLPX variants). The 381LX471M250K022 is an active product. The B43504B2477M000 carries a "Not For New Designs" status and should be used only for legacy system maintenance or replacement applications.

Compliance and Regulatory Status

All substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original 477LBA250M2DD. All parts carry EAR99 ECCN classification and identical HTSUS codes (8532.22.0040).

Frequently Asked Questions (FAQ)

Q: Can the LLS2E471MELB be used as a direct replacement for the 477LBA250M2DD?

A: The LLS2E471MELB is electrically and mechanically compatible with the 477LBA250M2DD. Both parts share identical capacitance (470 µF), voltage rating (250 V), tolerance (±20%), lead spacing (10.00mm), and diameter (30.00mm). The primary difference is seated height: the LLS2E471MELB measures 0.984" (25.00mm) versus 1.260" (32.00mm) for the original part. Verify that the reduced height accommodates your PCB layout and component clearance requirements.

Q: What is the difference between the SLPX471M250E1P3 and the 381LX471M250K022?

A: Both parts are Cornell Dubilier products with 470 µF capacitance and 250 V rating. The SLPX471M250E1P3 operates across -40°C to 85°C with 3000-hour lifetime at 85°C and features lower ESR (423 mOhm at 120 Hz). The 381LX471M250K022 extends the operating range to 105°C with 3000-hour lifetime at 105°C, making it suitable for higher-temperature applications. Both maintain identical lead spacing and diameter but differ in seated height (0.984" versus 1.260").

Q: Why is the B43504B2477M000 marked "Not For New Designs"?

A: The B43504B2477M000 carries a "Not For New Designs" product status from EPCOS - TDK Electronics. This designation indicates the part is available for legacy system support and replacement applications but should not be selected for new product development. For new designs, select from the active-status alternatives: LLS2E471MELB, SLPX471M250E1P3, or 381LX471M250K022.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed are ROHS3 compliant, matching the regulatory status of the 477LBA250M2DD. All parts are also REACH unaffected.

Q: What is the significance of ESR differences among the substitute parts?

A: ESR (Equivalent Series Resistance) affects ripple current handling and heat dissipation. The 477LBA250M2DD has ESR of 529.11 mOhm at 120 Hz. The SLPX471M250E1P3 provides lower ESR at 423 mOhm at 120 Hz, while the B43504B2477M000 offers the lowest ESR at 270 mOhm at 100 Hz. Lower ESR reduces heat generation under ripple current conditions. Select based on your application's ripple current requirements and thermal constraints.

Q: Can I use the LLS2E471MELB in a space-constrained application?

A: The LLS2E471MELB has a seated height of 0.984" (25.00mm), which is 0.276" (7.00mm) shorter than the original 477LBA250M2DD at 1.260" (32.00mm). This reduced height makes it suitable for space-constrained applications. However, verify that the reduced height does not affect component clearance, thermal management, or PCB layout requirements specific to your design.

Q: Do all substitute parts have the same lead spacing?

A: All substitute parts maintain identical lead spacing of 0.394" (10.00mm) and diameter of 1.181" (30.00mm). This ensures compatibility with existing PCB footprints designed for the 477LBA250M2DD. Seated height varies among substitutes and must be verified against your specific mechanical constraints.