478LMB050M2DD Equivalent & Substitute Parts Reference

Part Overview

The 478LMB050M2DD is a 4700 µF, 50 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 with a rated lifetime of 3000 hours at 105°C. The part is currently active in production and in stock with 1160 units available. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

478LMB050M2DD

Cornell Dubilier / Illinois CapacitorIn Stock: 1223478LMB050M2DD Datasheet

Current PartRFQ

50VXG4700MEFCSN30X30

RubyconIn Stock: 86950VXG4700MEFCSN30X30 Datasheet

UpgradeRFQ

LGY1H472MELB30

NichiconIn Stock: 1817LGY1H472MELB30 Datasheet

UpgradeRFQ

MAL209018472E3

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 2536MAL209018472E3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 478LMB050M2DD is determined by the following critical parameters:

Primary Matching Criteria:

• Capacitance: 4700 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: 50 V minimum (equal or higher voltage rating acceptable)
• Package / Case: Radial, Can - Snap-In (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)
• Physical Dimensions: 1.181" Dia (30.00mm) and 1.260" Height (exact match required)
• Mounting Type: Through Hole (exact match required)
• Polarization: Polar (exact match required)

Secondary Compatibility Factors:

• Operating Temperature Range: -40°C ~ 105°C (minimum requirement)
• RoHS3 Compliance (regulatory requirement)
• REACH Unaffected Status (regulatory requirement)

All substitute parts listed meet these criteria. Voltage ratings equal to or exceeding 50 V are acceptable for direct substitution in applications designed for 50 V operation.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (50 V Rated):

The 50VXG4700MEFCSN30X30 (Rubycon VXG series) and LGY1H472MELB30 (Nichicon LGY series) are direct substitutes for the 478LMB050M2DD. Both parts match all primary electrical and mechanical parameters, including the 50 V voltage rating. Both are ROHS3 compliant and REACH unaffected. These substitutes offer extended lifetime ratings of 5000 hours at 105°C compared to the original part's 3000-hour rating, providing improved reliability margins in equivalent circuit positions.

Upgraded Substitute (63 V Rated):

The MAL209018472E3 (Vishay 090 PUL-SI series) is a compatible substitute with a higher voltage rating of 63 V. This part maintains all mechanical and dimensional specifications identical to the 478LMB050M2DD. The 63 V rating provides additional voltage margin in applications where the original 50 V specification is met. This part is ROHS3 compliant and REACH unaffected. The higher voltage rating does not degrade performance in 50 V applications and may extend operational life in circuits subject to voltage transients.

All substitute parts are currently in active production status with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the 50VXG4700MEFCSN30X30 directly replace the 478LMB050M2DD without circuit modification?

A: Yes. The 50VXG4700MEFCSN30X30 matches all critical electrical parameters (4700 µF, ±20% tolerance, 50 V rating) and mechanical specifications (lead spacing, physical dimensions, snap-in package). No circuit modification is required. The part is pin-compatible and footprint-compatible.

Q: What is the advantage of the LGY1H472MELB30 over the original 478LMB050M2DD?

A: The LGY1H472MELB30 maintains identical electrical and mechanical specifications but offers a 5000-hour lifetime at 105°C compared to the original 3000-hour rating. This extended lifetime provides improved reliability in applications with continuous thermal stress.

Q: Why does the MAL209018472E3 have a 63 V rating instead of 50 V?

A: The MAL209018472E3 is rated for 63 V operation. In applications designed for 50 V, this higher voltage rating is acceptable and does not create compatibility issues. The capacitor will operate safely within the 50 V specification. The higher voltage rating provides additional safety margin against voltage transients and overvoltage conditions.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (50VXG4700MEFCSN30X30, LGY1H472MELB30, and MAL209018472E3) are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: Can I use these substitutes in audio applications?

A: The 50VXG4700MEFCSN30X30 and LGY1H472MELB30 are rated for general-purpose applications. The MAL209018472E3 is specifically rated for audio applications. All three parts are suitable for audio circuit use based on their respective application ratings.

Q: What is the difference in ripple current handling between these parts?

A: The 478LMB050M2DD handles 2.53 A at 120 Hz and 3.1625 A at 10 kHz. The 50VXG4700MEFCSN30X30 handles 2.22 A at 120 Hz and 2.553 A at 10 kHz. The LGY1H472MELB30 handles 2.1 A at 120 Hz and 2.415 A at 50 kHz. The MAL209018472E3 handles 3.1 A at 100 Hz. Selection should be based on the specific ripple current requirements of the application circuit.

Q: Are these parts available in different packaging options?

A: All listed parts are supplied in bulk packaging. No alternative packaging formats are specified in this reference. Contact the respective manufacturers for packaging availability options.