MAL212387338 Equivalent & Substitute Parts

Part Overview

The MAL212387338 is a 3.3 µF, 40 V aluminum electrolytic capacitor in axial configuration manufactured by Vishay Beyschlag/Draloric/BC Components. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part operates across a temperature range of -55°C to 125°C with a rated lifetime of 20,000 hours at 125°C, serving general-purpose applications requiring stable capacitance and low ESR characteristics.

Substiute Parts

MAL212387338

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1008MAL212387338 Datasheet

Current PartRFQ

335TLS050M

Cornell Dubilier / Illinois CapacitorIn Stock: 1084335TLS050M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAL212387338 is determined by the following critical parameters:

• Capacitance Value: Must match 3.3 µF
• Tolerance: Must be ±20% or tighter
• Voltage Rating: Must be equal to or greater than 40 V
• Package Type: Must be Axial, Can configuration
• Mounting Type: Must be Through Hole
• Polarization: Must be Polar

The substitute part 335TLS050M meets these core substitution criteria. It maintains identical capacitance and tolerance specifications while providing a higher voltage rating (50 V), which ensures compatibility in circuits designed for 40 V operation. Both parts utilize the same axial through-hole mounting configuration and polar electrolytic construction.

Parameter Comparison

Engineering Selection Recommendations

The 335TLS050M serves as a functional substitute for the obsolete MAL212387338 based on matching capacitance, tolerance, and package configuration. The substitute part offers several advantages: it maintains active product status, ensuring long-term availability and supply chain stability, and achieves ROHS3 compliance, meeting modern regulatory requirements that the original part does not satisfy.

The higher voltage rating (50 V versus 40 V) provides additional design margin in applications operating at or near the original 40 V specification. The substitute exhibits lower ESR (50.238 Ohm @ 120Hz compared to 73 Ohm @ 100Hz), which may improve circuit performance in ripple-sensitive applications.

Physical dimensions differ between the parts: the substitute is smaller (5.00mm x 13.00mm versus 6.70mm x 15.30mm), which may require PCB layout verification to ensure mechanical fit within existing designs. The substitute's operating temperature range (-40°C ~ 85°C) is narrower than the original (-55°C ~ 125°C), requiring assessment against application temperature requirements.

Frequently Asked Questions (FAQ)

Q: Can the 335TLS050M directly replace the MAL212387338 in all applications?

A: Direct replacement is possible when the application operates within the substitute's temperature range (-40°C ~ 85°C) and does not require the original's extended high-temperature lifetime rating (20,000 Hrs @ 125°C). Physical dimensions must be verified against PCB layout constraints.

Q: Why does the substitute have a higher voltage rating?

A: The 50 V rating of the 335TLS050M exceeds the original 40 V specification. Higher voltage-rated capacitors are electrically compatible in lower-voltage circuits and provide additional safety margin. This does not affect substitution validity.

Q: What is the significance of the different ESR values?

A: ESR (Equivalent Series Resistance) affects ripple current handling and heat generation. The substitute's lower ESR (50.238 Ohm @ 120Hz) may improve performance in applications sensitive to impedance characteristics, though both parts meet general-purpose requirements.

Q: Are there physical fit concerns with the smaller substitute part?

A: The substitute is physically smaller (5.00mm x 13.00mm versus 6.70mm x 15.30mm). PCB layouts designed for the original part's dimensions must be reviewed to confirm the substitute fits within available space. Smaller dimensions typically present no compatibility issues.

Q: Does RoHS3 compliance matter for my application?

A: RoHS3 compliance is mandatory for products sold in regulated markets. The substitute's ROHS3 compliance ensures it meets current environmental and safety standards, whereas the original non-compliant part may face restrictions in certain jurisdictions or supply chains.

Q: What should I verify before implementing this substitute?

A: Confirm that your application's operating temperature range falls within -40°C ~ 85°C, verify PCB layout accommodates the smaller physical dimensions, and assess whether the substitute's lifetime rating (2,000 Hrs @ 85°C) meets your reliability requirements.