MAL212380479 Equivalent & Substitute Parts

Part Overview

The MAL212380479 is a 47 µF, 35 V aluminum electrolytic capacitor in axial configuration, manufactured by Vishay Beyschlag/Draloric/BC Components. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part operates across a temperature range of -55°C to 125°C with a rated lifetime of 20,000 hours at 125°C, suitable for general-purpose applications requiring stable capacitance and low ESR characteristics.

Substiute Parts

MAL212380479

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 862MAL212380479 Datasheet

Current PartRFQ

476TMA050M

Cornell Dubilier / Illinois CapacitorIn Stock: 6176476TMA050M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 476TMA050M qualifies as a substitute based on the following alignment criteria:

Matching Parameters:

• Capacitance: 47 µF (identical)
• Tolerance: ±20% (identical)
• Polarization: Polar (identical)
• Package / Case: Axial, Can (identical)
• Mounting Type: Through Hole (identical)

Allowable Deviations:

• Voltage Rating: 50 V (higher than 35 V original, providing increased voltage margin)
• ESR: 4.233 Ohm @ 120Hz (lower than 5.1 Ohm @ 100Hz, indicating improved performance)
• Operating Temperature: -40°C ~ 105°C (narrower range than -55°C ~ 125°C, acceptable for most applications)
• Lifetime: 2,000 Hrs @ 105°C (different test condition; direct comparison requires thermal modeling)

The substitute maintains electrical equivalence in capacitance, tolerance, and polarization while offering superior voltage headroom and lower ESR, making it suitable for direct replacement in circuits designed for the original part.

Parameter Comparison

Engineering Selection Recommendations

The 476TMA050M is suitable as a direct substitute for the MAL212380479 based on the following factors:

Electrical Compatibility: Both parts maintain identical capacitance (47 µF) and tolerance (±20%), ensuring functional equivalence in circuit operation. The substitute's higher voltage rating (50 V vs. 35 V) provides additional safety margin without affecting performance in 35 V applications.

Physical Compatibility: Both components use axial, can-style packaging with through-hole mounting. The substitute is physically smaller (6.30mm x 16.00mm vs. 9.40mm x 23.30mm), which may require PCB layout verification but does not prevent substitution.

Compliance Status: The substitute is ROHS3 compliant and carries active product status, whereas the original is obsolete and RoHS non-compliant. For new designs and production requiring regulatory compliance, the 476TMA050M is the appropriate choice.

Temperature Considerations: The substitute operates within -40°C to 105°C, which is narrower than the original's -55°C to 125°C range. Verify that the application's operating temperature requirements fall within this range before selection.

Frequently Asked Questions (FAQ)

Q: Can the 476TMA050M replace the MAL212380479 in existing designs?

A: Yes, provided the circuit's operating temperature does not exceed 105°C and does not fall below -40°C. The substitute's higher voltage rating and lower ESR make it electrically superior for 35 V applications.

Q: Does the physical size difference affect PCB compatibility?

A: The substitute is smaller (6.30mm x 16.00mm vs. 9.40mm x 23.30mm). Verify that the PCB layout accommodates the smaller footprint. Lead spacing and mounting hole positions must be confirmed for through-hole compatibility.

Q: What is the significance of the voltage rating difference?

A: The substitute's 50 V rating versus the original's 35 V provides increased voltage margin. In a 35 V circuit, the substitute operates at 70% of its rated voltage, improving reliability and reducing stress on the dielectric.

Q: Are there compliance implications for using the substitute?

A: Yes. The substitute is ROHS3 compliant, whereas the original is RoHS non-compliant. For applications requiring RoHS compliance, the 476TMA050M is mandatory.

Q: How do the ESR values compare?

A: The substitute has lower ESR (4.233 Ohm @ 120Hz vs. 5.1 Ohm @ 100Hz), indicating better high-frequency performance and reduced heat generation. This is a performance improvement for ripple current applications.

Q: What should be verified before final substitution?

A: Confirm that the application's operating temperature range falls within -40°C to 105°C, verify PCB layout accommodates the smaller physical dimensions, and validate that the circuit design does not depend on the original part's specific thermal or frequency characteristics.