Equivalent & Substitute Parts for 478LMB080M2DH

Part Overview

The 478LMB080M2DH is a 4700 µF, 80 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring high capacitance values at moderate voltage ratings. The part is currently active in production with 701 units in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to component availability, supply chain considerations, or design flexibility within established parameter tolerances.

Substiute Parts

478LMB080M2DH

Cornell Dubilier / Illinois CapacitorIn Stock: 773478LMB080M2DH Datasheet

Current PartRFQ

381LX472M080K052

Cornell Dubilier Electronics (CDE)In Stock: 1621381LX472M080K052 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 478LMB080M2DH is based on strict equivalence of the following critical parameters:

Electrical Parameters:

• Capacitance: 4700 µF (exact match required)
• Voltage Rating: 80 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime: 3000 Hrs @ 105°C (exact match required)
• Operating Temperature Range: -40°C ~ 105°C (exact match required)
• Polarization: Polar (exact match required)

Mechanical Parameters:

• Package / Case: Radial, Can - Snap-In (exact match required)
• Mounting Type: Through Hole (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)
• Size / Dimension: 1.181" Dia (30.00mm) (exact match required)
• Height - Seated (Max): 2.047" (52.00mm) (exact match required)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

The substitute part 381LX472M080K052 meets all critical electrical and mechanical parameters, ensuring direct compatibility in circuit applications and PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

Both the 478LMB080M2DH and 381LX472M080K052 are active production components manufactured within the Cornell Dubilier corporate family. Selection between these parts is based on the following engineering criteria:

Product Status: Both parts maintain active production status, ensuring long-term availability and supply chain stability.

Regulatory Compliance: Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Electrical Equivalence: The parts are electrically equivalent across all specified parameters, including capacitance, voltage rating, tolerance, and thermal lifetime ratings. Ripple current specifications differ slightly between the parts but remain within acceptable operational ranges for general-purpose applications.

Mechanical Compatibility: Both parts share identical mechanical dimensions, lead spacing, and mounting configurations, ensuring direct substitution in through-hole PCB layouts without design modification.

Supply Availability: The 381LX472M080K052 currently has higher inventory availability (1582 units) compared to the 478LMB080M2DH (701 units), making it a viable alternative when supply constraints exist.

Selection of either part is determined by component availability, procurement lead times, and existing design documentation requirements.

Frequently Asked Questions (FAQ)

Q: Can the 381LX472M080K052 be used as a direct replacement for the 478LMB080M2DH in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent across all critical parameters. The 381LX472M080K052 shares identical capacitance, voltage rating, tolerance, operating temperature range, physical dimensions, lead spacing, and mounting configuration. Direct substitution requires no PCB layout modifications or circuit design changes.

Q: Are there differences in ripple current handling between these two parts?

A: The 478LMB080M2DH specifies 3.5 A ripple current at 120 Hz and 4.375 A at 10 kHz. The 381LX472M080K052 specifies 3.3 A at 120 Hz and 3.8 A at 20 kHz. Both values remain within acceptable operational ranges for general-purpose applications. Circuit designers should verify ripple current requirements against application specifications.

Q: Do both parts meet the same environmental and regulatory standards?

A: Yes. Both the 478LMB080M2DH and 381LX472M080K052 are ROHS3 compliant, REACH unaffected, and classified under the same ECCN (EAR99) and HTSUS (8532.22.0040) codes. Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

Q: What is the significance of the snap-in package configuration?

A: The snap-in package indicates a mechanical mounting system where the capacitor is secured to the PCB through a snap-fit mechanism rather than solder alone. Both parts use identical snap-in configurations with 0.394" (10.00mm) lead spacing and 1.181" (30.00mm) diameter cans, ensuring mechanical compatibility in existing PCB designs.

Q: Are there any thermal performance differences between these parts?

A: Both parts specify identical thermal lifetime ratings of 3000 hours at 105°C and identical operating temperature ranges of -40°C to 105°C. No thermal performance differentiation exists between the two parts.

Q: Which part should be selected for new designs?

A: Selection is based on component availability and procurement considerations. Both parts are functionally equivalent and suitable for new designs. Verify current inventory status and lead times with component suppliers to determine the most appropriate selection for your application timeline.