MAL212367479 Equivalent & Substitute Parts

Part Overview

The MAL212367479 is a 47 µF, 40 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 substitutes essential for ongoing design support and production continuity. The part features a 5.1 Ohm equivalent series resistance at 100 Hz and is rated for 20,000 hours at 125°C operating temperature, suitable for general-purpose applications requiring through-hole mounting.

Substiute Parts

MAL212367479

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 892MAL212367479 Datasheet

Current PartRFQ

MAL211890536E3

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1778MAL211890536E3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAL212367479 is determined by the following critical parameters:

• Capacitance Value: Must remain 47 µF to maintain circuit functionality
• Tolerance: ±20% tolerance is acceptable for general-purpose applications
• Polarization: Polar configuration is required for direct replacement
• Mounting Type: Through-hole axial mounting is mandatory for PCB compatibility
• Package Configuration: Axial, can-style package ensures mechanical fit

The substitute part MAL211890536E3 maintains identical capacitance, tolerance, polarization, and mounting characteristics. While the rated voltage is elevated to 100 V (compared to 40 V), this represents an uprating that is electrically compatible in the original 40 V application. Physical dimensions differ slightly, which may require PCB layout verification for space-constrained designs.

Parameter Comparison

Engineering Selection Recommendations

The MAL211890536E3 is an active, in-production substitute for the obsolete MAL212367479. Selection of this substitute is supported by the following factors:

Electrical Compatibility: Both parts share identical capacitance (47 µF) and tolerance (±20%), ensuring functional equivalence in the circuit. The substitute's higher rated voltage (100 V versus 40 V) provides voltage margin in the original 40 V application without adverse effects.

Compliance Status: The substitute part is ROHS3 compliant, whereas the original part is RoHS non-compliant. For applications subject to RoHS regulations, the substitute provides regulatory compliance. The substitute is REACH unaffected, compared to the original part's REACH-affected status.

Availability and Production Status: The substitute is classified as active product status with 1,760 pieces in stock, ensuring long-term availability. The original part is obsolete, making continued sourcing impractical.

Physical Considerations: The substitute features a more compact form factor (0.394" Dia x 0.984" L versus 0.406" Dia x 1.260" L). PCB layout verification is required to confirm that the reduced footprint does not create mechanical interference or spacing conflicts in the target application.

Performance Trade-offs: The substitute exhibits lower ESR (2.6 Ohm versus 5.1 Ohm), which may improve ripple current handling. However, the substitute's rated lifetime at 125°C is reduced to 4,000 hours compared to the original's 20,000 hours. Applications requiring extended thermal endurance should evaluate this parameter against design requirements.

Frequently Asked Questions (FAQ)

Q: Can MAL211890536E3 be used as a direct replacement for MAL212367479?

A: Yes, for applications operating at or below 40 V. Both parts maintain identical capacitance (47 µF), tolerance (±20%), polarization (polar), and through-hole axial mounting. The substitute's 100 V rating provides voltage margin in 40 V circuits. Physical dimensions differ slightly; PCB layout verification is necessary.

Q: What are the key differences between these parts?

A: The primary differences are: (1) Rated voltage: 40 V versus 100 V; (2) ESR: 5.1 Ohm versus 2.6 Ohm; (3) Lifetime at 125°C: 20,000 hours versus 4,000 hours; (4) Physical size: 10.30 mm x 32.00 mm versus 10.00 mm x 25.00 mm; (5) Product status: Obsolete versus Active; (6) RoHS compliance: Non-compliant versus ROHS3 compliant.

Q: Does the higher voltage rating of the substitute affect circuit operation?

A: No. A capacitor with a higher voltage rating operates normally in lower-voltage applications. The 100 V rating of the substitute provides additional voltage margin without affecting capacitance, tolerance, or polarization characteristics required by the circuit.

Q: Is the smaller physical size of the substitute a concern?

A: The substitute is more compact (0.394" Dia x 0.984" L versus 0.406" Dia x 1.260" L). This reduction in footprint may provide layout benefits but requires verification that the component fits within the PCB mounting area and does not create mechanical conflicts with adjacent components.

Q: What is the impact of the reduced lifetime rating on the substitute?

A: The substitute is rated for 4,000 hours at 125°C, compared to the original's 20,000 hours. Applications requiring extended thermal endurance at elevated temperatures should evaluate whether this reduced lifetime meets design specifications. For general-purpose applications at nominal operating temperatures, this difference may be acceptable.

Q: Are there any compliance considerations when switching to the substitute?

A: Yes. The substitute is ROHS3 compliant and REACH unaffected, whereas the original part is RoHS non-compliant and REACH affected. For applications subject to RoHS or REACH regulations, the substitute provides regulatory compliance.