MAL212380478 Equivalent & Substitute Parts

Part Overview

The MAL212380478 is a 4.7 µF 35 V aluminum electrolytic capacitor in axial configuration, manufactured by Vishay Beyschlag/Draloric/BC Components as part of the 123 SAL-A series. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The axial, can-style package with through-hole mounting provides compatibility with legacy circuit board layouts and applications requiring general-purpose energy storage and filtering.

Substiute Parts

MAL212380478

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 996MAL212380478 Datasheet

Current PartRFQ

475BPA050M

Cornell Dubilier / Illinois CapacitorIn Stock: 890475BPA050M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAL212380478 is determined by the following critical parameters:

Mandatory Matching Criteria:

• Capacitance value: 4.7 µF (exact match required)
• Tolerance: ±20% (standard tolerance for aluminum electrolytic capacitors)
• Voltage rating: Minimum 35 V (equal or higher voltage rating acceptable)
• Package style: Axial, Can configuration
• Mounting type: Through Hole
• Polarization: Polar (unidirectional)

Acceptable Variation Parameters:

• ESR and impedance values may vary within typical manufacturing ranges for equivalent capacitance and voltage ratings
• Operating temperature range may differ; substitute must support minimum operating conditions of the application
• Lifetime specifications may vary; selection depends on application duty cycle requirements
• Ripple current ratings may differ based on ESR characteristics

The substitute part 475BPA050M meets the mandatory matching criteria with identical capacitance, tolerance, package configuration, and mounting type. The voltage rating of 50 V exceeds the 35 V requirement, providing enhanced voltage margin. Physical dimensions remain compatible with through-hole PCB layouts designed for the original component.

Parameter Comparison

Engineering Selection Recommendations

The 475BPA050M serves as a functional substitute for the obsolete MAL212380478 based on the following engineering criteria:

Electrical Compatibility: Both components share identical capacitance (4.7 µF) and tolerance (±20%). The substitute's 50 V voltage rating exceeds the original 35 V specification, providing additional voltage margin and enhanced reliability in the application circuit. ESR values are comparable (49.383 Ohm vs. 51 Ohm), ensuring similar frequency response characteristics.

Physical Compatibility: Both components utilize axial, can-style packaging with through-hole mounting. Dimensional differences are minimal (0.236" Dia x 0.630" L vs. 0.264" Dia x 0.602" L), maintaining compatibility with existing PCB layouts and component spacing requirements.

Compliance Status: The substitute part is ROHS3 compliant and REACH unaffected, addressing modern regulatory requirements. The original part is RoHS non-compliant, which may present procurement or deployment restrictions in regulated environments.

Product Availability: The substitute is classified as active product status with confirmed inventory, ensuring long-term availability and supply chain continuity compared to the obsolete original component.

Application Considerations: Selection between these parts depends on specific application requirements. The original part's extended operating temperature range (-55°C ~ 125°C) and higher lifetime rating (20000 Hrs @ 125°C) suit high-temperature or extended-duty applications. The substitute's lower temperature range (-40°C ~ 85°C) and reduced lifetime (2000 Hrs @ 85°C) are appropriate for standard industrial and consumer applications operating within these parameters.

Frequently Asked Questions (FAQ)

Q: Can the 475BPA050M directly replace the MAL212380478 in all applications?

A: Direct replacement is possible for applications operating within the substitute's temperature range (-40°C ~ 85°C) and duty cycle. Applications requiring operation above 85°C or extended lifetime at elevated temperatures should evaluate the substitute's 2000 Hrs @ 85°C rating against original design specifications.

Q: What is the significance of the voltage rating difference (35 V vs. 50 V)?

A: The substitute's higher voltage rating (50 V) provides additional safety margin and is electrically compatible with circuits designed for 35 V operation. Higher voltage-rated capacitors typically exhibit lower leakage current and improved reliability in the specified voltage range.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: Both components use axial, can-style packaging with through-hole mounting. Dimensional variations (0.236" Dia x 0.630" L vs. 0.264" Dia x 0.602" L) are within typical component tolerance ranges and compatible with standard PCB hole spacing and component placement guidelines.

Q: What does the polarization difference (Polar vs. Bi-Polar) mean for substitution?

A: The original MAL212380478 is polar (unidirectional), requiring correct polarity orientation during installation. The substitute 475BPA050M is bi-polar, allowing operation in either polarity direction. For circuits designed with polar capacitors, the substitute's bi-polar characteristic provides additional installation flexibility without affecting electrical performance.

Q: How do the ESR and ripple current specifications compare?

A: ESR values are comparable (51 Ohm vs. 49.383 Ohm), indicating similar high-frequency performance. The substitute exhibits higher ripple current capability (46 mA @ 120 Hz vs. 20 mA @ 100 Hz), providing improved performance in applications with significant AC ripple content.

Q: What compliance advantages does the substitute offer?

A: The 475BPA050M is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. The original part's RoHS non-compliant status may restrict use in regulated markets or applications requiring compliance documentation.