478LBB080M2DF Equivalent & Substitute Parts Reference

Part Overview

The 478LBB080M2DF is a 4700 µF, 80 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the LBB series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring high capacitance at moderate voltage ratings. The part is currently active in production with 922 units in stock. Equivalent and substitute parts are identified when identical or compatible electrical and mechanical parameters are available from alternative manufacturers, enabling procurement flexibility and supply chain continuity.

Substiute Parts

478LBB080M2DF

Cornell Dubilier / Illinois CapacitorIn Stock: 990478LBB080M2DF Datasheet

Current PartRFQ

380LX472M080K042

Cornell Dubilier Electronics (CDE)In Stock: 1302380LX472M080K042 Datasheet

Parametric EquivalentRFQ

80USG4700MEFCSN30X40

RubyconIn Stock: 92880USG4700MEFCSN30X40 Datasheet

Parametric EquivalentRFQ

LLS1K472MELB

NichiconIn Stock: 1226LLS1K472MELB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 478LBB080M2DF are qualified based on the following criteria:

Core Electrical Parameters (Must Match):

• Capacitance: 4700 µF
• Voltage Rating: 80 V
• Tolerance: ±20%
• Lifetime: 3000 Hrs @ 85°C
• Operating Temperature Range: -40°C ~ 85°C
• Polarization: Polar

Core Mechanical Parameters (Must Match):

• Lead Spacing: 0.394" (10.00mm)
• Size / Dimension: 1.181" Dia (30.00mm)
• Height - Seated (Max): 1.654" (42.00mm)
• Mounting Type: Through Hole
• Package / Case: Radial, Can - Snap-In

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected
• ECCN: EAR99

All three substitute parts meet these criteria and are therefore electrically and mechanically interchangeable with the 478LBB080M2DF in applications where the specified parameters are required.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—380LX472M080K042 (Cornell Dubilier Electronics), 80USG4700MEFCSN30X40 (Rubycon), and LLS1K472MELB (Nichicon)—are qualified equivalents to the 478LBB080M2DF based on matching electrical specifications, mechanical dimensions, and compliance certifications.

Selection Basis:

1. Electrical Compatibility: All parts share identical capacitance (4700 µF), voltage rating (80 V), tolerance (±20%), and thermal lifetime (3000 Hrs @ 85°C). Operating temperature ranges are identical across all options.

2. Mechanical Compatibility: Lead spacing, case diameter, seated height, and mounting type are identical across all parts, ensuring direct board-level substitution without layout modifications.

3. Regulatory Compliance: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory posture.

4. Product Status: All parts are active in production, ensuring continued availability and supply chain stability.

5. Inventory Availability: Multiple suppliers provide stock quantities, supporting procurement flexibility and lead-time optimization.

The 380LX472M080K042 exhibits the lowest ESR specification (65 mOhm @ 120Hz) among parts with published ESR data, while the 478LBB080M2DF provides the lowest ESR at 52.91 mOhm @ 120Hz. Ripple current ratings vary slightly across the product line but remain within acceptable ranges for general-purpose applications.

Frequently Asked Questions (FAQ)

Q: Can the 380LX472M080K042 be used as a direct replacement for the 478LBB080M2DF?

A: Yes. The 380LX472M080K042 is electrically and mechanically equivalent. Both parts share identical capacitance (4700 µF), voltage rating (80 V), tolerance (±20%), thermal lifetime (3000 Hrs @ 85°C), lead spacing (10.00mm), case diameter (30.00mm), and seated height (42.00mm). Both are ROHS3 compliant and REACH unaffected. Direct substitution is supported at the board level without design modifications.

Q: What is the difference between the ESR specifications of these parts?

A: ESR (Equivalent Series Resistance) values are provided for the 478LBB080M2DF (52.91 mOhm @ 120Hz) and 380LX472M080K042 (65 mOhm @ 120Hz). The 80USG4700MEFCSN30X40 and LLS1K472MELB do not publish ESR specifications in the provided data. ESR affects ripple current handling and heat dissipation; lower ESR generally indicates better high-frequency performance. Selection should consider application-specific ripple current requirements.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All parts are supplied in bulk packaging as radial, can-style snap-in aluminum electrolytic capacitors with through-hole mounting. No surface-mount variants are available in this product group.

Q: Do the substitute parts have identical ripple current ratings?

A: Ripple current ratings vary slightly across the product line. At 120 Hz, ratings range from 4.05 A (478LBB080M2DF) to 4.28 A (80USG4700MEFCSN30X40). At higher frequencies, variations are more pronounced. Applications with specific ripple current requirements should reference the detailed specifications for each part number.

Q: Are all parts compliant with current environmental regulations?

A: Yes. All four parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component procurement in regulated markets.

Q: Which manufacturer should I select if multiple parts are available?

A: Selection should be based on procurement lead times, inventory availability, and application-specific performance requirements. All parts are active in production with adequate stock levels. The 478LBB080M2DF (922 Pcs), 380LX472M080K042 (1268 Pcs), 80USG4700MEFCSN30X40 (900 Pcs), and LLS1K472MELB (1210 Pcs) are all available for immediate procurement.