474SML050MD4 Aluminum Electrolytic Capacitor - Equivalent & Substitute Parts

Part Overview

The 474SML050MD4 is a 0.47 µF, 50 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the SML series. This surface mount radial can capacitor is designed for general purpose applications requiring stable capacitance performance across industrial temperature ranges. The part is currently active in production with 764 units in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to component availability, supply chain constraints, or design optimization needs.

Substiute Parts

474SML050MD4

Cornell Dubilier / Illinois CapacitorIn Stock: 807474SML050MD4 Datasheet

Current PartRFQ

MAL215371477E3

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 8513MAL215371477E3 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 474SML050MD4 is determined by strict equivalence in the following electrical and mechanical parameters:

Critical Matching Parameters:

• Capacitance value: 0.47 µF (exact match required)
• Voltage rating: 50 V (minimum acceptable)
• Tolerance: ±20% (electrical tolerance band)
• Polarization: Polar (functional requirement)
• Mounting type: Surface Mount (assembly compatibility)
• Package type: Radial, Can - SMD (PCB footprint compatibility)
• Physical diameter: 0.157" (4.00 mm) (mechanical fit)
• Surface mount land size: 0.169" L x 0.169" W (4.30 mm x 4.30 mm) (PCB pad compatibility)
• Compliance: ROHS3 Compliant, MSL 1 (regulatory and handling requirements)

The substitute part MAL215371477E3 meets all critical matching parameters and is therefore classified as a direct equivalent for the 474SML050MD4.

Parameter Comparison

Engineering Selection Recommendations

474SML050MD4 (Cornell Dubilier / Illinois Capacitor)

Select this part when:

• Original design specification requires the SML series
• Supply chain preference favors Cornell Dubilier / Illinois Capacitor sourcing
• Current inventory availability (764 units in stock) meets project timeline requirements
• Operating environment remains within -40°C to 85°C range

MAL215371477E3 (Vishay Beyschlag/Draloric/BC Components)

Select this part when:

• Extended operating temperature range (-55°C to 105°C) is required
• Higher temperature lifetime rating (2000 Hrs @ 105°C) is specified
• Vishay component sourcing is preferred or mandated
• Higher inventory availability (8467 units in stock) supports rapid procurement
• Tape & Reel packaging format is required for automated assembly

Both parts are ROHS3 compliant, MSL 1 rated, and maintain identical electrical and mechanical compatibility for PCB integration. The choice between these parts is determined by supply chain strategy, temperature performance requirements, and packaging format needs rather than functional limitations.

Frequently Asked Questions (FAQ)

Q: Can MAL215371477E3 be used as a direct replacement for 474SML050MD4 on existing PCBs?

A: Yes. Both parts share identical capacitance (0.47 µF), voltage rating (50 V), tolerance (±20%), physical diameter (4.00 mm), and surface mount land size (4.30 mm x 4.30 mm). The seated height difference (5.50 mm vs. 5.30 mm) is within acceptable mechanical tolerance for standard PCB assembly. No PCB redesign is required.

Q: What is the difference in ESR between these two parts?

A: The ESR values are measured at different frequencies: 474SML050MD4 is specified at 423.28 Ohm @ 120 Hz, while MAL215371477E3 is specified at 12 Ohm @ 100 kHz. These measurements are not directly comparable due to frequency-dependent ESR characteristics in aluminum electrolytic capacitors. Both parts meet the electrical requirements for general purpose applications.

Q: Which part should be selected for high-temperature applications?

A: MAL215371477E3 is suitable for applications requiring extended temperature performance, with an operating range of -55°C to 105°C and a lifetime rating of 2000 Hrs @ 105°C. The 474SML050MD4 is rated for -40°C to 85°C with 2000 Hrs @ 85°C. Select based on actual operating temperature requirements.

Q: Are both parts available in the same packaging format?

A: The 474SML050MD4 is supplied in standard packaging, while MAL215371477E3 is supplied in Tape & Reel (TR) format. Tape & Reel packaging is optimized for automated pick-and-place assembly. Confirm packaging requirements with your assembly process before selection.

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both 474SML050MD4 and MAL215371477E3 are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Both carry MSL 1 (Unlimited) moisture sensitivity rating, requiring standard handling procedures.

Q: What is the minimum voltage rating acceptable for substitution?

A: The minimum acceptable voltage rating is 50 V, matching the original specification. Parts with lower voltage ratings cannot be substituted. Parts with higher voltage ratings are acceptable but may introduce size or cost considerations.