MAL212367478 Equivalent & Substitute Parts

Part Overview

The MAL212367478 is a 4.7 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, indicating discontinuation from active production. For applications requiring continued component availability or improved performance characteristics, equivalent substitute parts meeting the core electrical specifications are necessary.

Substiute Parts

MAL212367478

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 806MAL212367478 Datasheet

Current PartRFQ

MAL211838478E3

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 855MAL211838478E3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAL212367478 is based on the following core electrical and mechanical parameters:

• Capacitance Value: Must be 4.7 µF (±20% tolerance acceptable)
• Voltage Rating: Minimum 40 V; higher voltage ratings are acceptable for backward compatibility
• Polarization: Must remain polar (electrolytic)
• Mounting Type: Must be through-hole axial configuration
• Package Style: Axial, can format

The substitute part MAL211838478E3 meets these criteria with a higher voltage rating (63 V) and improved performance metrics, while maintaining identical capacitance, tolerance, and form factor specifications.

Parameter Comparison

Engineering Selection Recommendations

The MAL211838478E3 serves as the manufacturer-recommended substitute for the obsolete MAL212367478. Selection of this substitute is supported by the following factors:

• Product Status: The substitute is active and in production, ensuring continued availability and supply chain reliability
• Electrical Compatibility: Identical capacitance (4.7 µF) and tolerance (±20%) with higher voltage rating (63 V vs. 40 V) provides enhanced margin for circuit protection
• Compliance: The substitute achieves ROHS3 compliance, whereas the original part is non-compliant, meeting modern regulatory requirements
• Form Factor: Both components maintain identical through-hole axial configuration, enabling direct mechanical replacement without PCB redesign

The substitute exhibits lower ESR (24 Ohm vs. 51 Ohm) and reduced lifetime rating (4000 Hrs vs. 20000 Hrs @ 125°C), reflecting differences in the 118 AHT series design. The operating temperature minimum is -40°C versus -55°C for the original part.

Frequently Asked Questions (FAQ)

Q: Can MAL211838478E3 be used as a direct replacement for MAL212367478?

A: Yes. Both components share identical capacitance (4.7 µF), tolerance (±20%), polarization (polar), and through-hole axial mounting configuration. The substitute's higher voltage rating (63 V) is compatible with circuits designed for 40 V operation.

Q: What are the key differences between these parts?

A: The substitute features a higher voltage rating (63 V vs. 40 V), lower ESR (24 Ohm vs. 51 Ohm), improved RoHS compliance (ROHS3 vs. non-compliant), and active product status. The original part offers extended lifetime rating (20000 Hrs vs. 4000 Hrs @ 125°C) and wider operating temperature range (-55°C to -40°C minimum).

Q: Are there physical dimension differences?

A: Minor dimensional variations exist. The main part measures 0.264" Dia × 0.602" L (6.70mm × 15.30mm), while the substitute measures 0.256" Dia × 0.709" L (6.50mm × 18.00mm). Both fit standard through-hole axial footprints with appropriate lead spacing accommodation.

Q: Does the substitute meet current regulatory requirements?

A: Yes. The MAL211838478E3 is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. The original MAL212367478 is RoHS non-compliant and REACH affected.

Q: What is the inventory status of these parts?

A: The original MAL212367478 has 710 pieces in stock (obsolete status). The substitute MAL211838478E3 has 780 pieces available with active product status, ensuring ongoing supply availability.