476TTA025M Equivalent & Substitute Parts

Part Overview

The 476TTA025M is a 47 µF, 25 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the TTA series. This axial, through-hole component is designed for general-purpose applications requiring polar electrolytic capacitance. The part is currently active in production with 698 units in stock. Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support component sourcing alternatives while maintaining electrical and mechanical compatibility within specified parameters.

Substiute Parts

476TTA025M

Cornell Dubilier / Illinois CapacitorIn Stock: 786476TTA025M Datasheet

Current PartRFQ

MAL202136479E3

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 3807MAL202136479E3 Datasheet

SimilarRFQ

MAL203036479E3

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1990MAL203036479E3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 476TTA025M are qualified based on the following critical parameters that determine functional equivalence:

Core Electrical Parameters:

• Capacitance: 47 µF (exact match required)
• Voltage Rating: 25 V (exact match required)
• Polarization: Polar (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)

Mechanical Parameters:

• Mounting Type: Through Hole (exact match required)
• Package / Case: Axial, Can (exact match required)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (exact match required)
• REACH Status: REACH Unaffected (exact match required)

Substitute parts MAL202136479E3 and MAL203036479E3, both manufactured by Vishay Beyschlag/Draloric/BC Components, satisfy all core electrical, mechanical, and compliance requirements. Variations in ESR, lifetime rating, tolerance, and physical dimensions are within acceptable substitution parameters for general-purpose applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—476TTA025M, MAL202136479E3, and MAL203036479E3—are active production components with ROHS3 compliance and REACH unaffected status, qualifying them for use in regulated applications.

476TTA025M (Cornell Dubilier / Illinois Capacitor):

• Primary specification for applications requiring the exact TTA series design
• Suitable for general-purpose circuits with 2000-hour lifetime requirement at 85°C
• Physical dimensions: 6.30mm diameter × 13.00mm length

MAL202136479E3 (Vishay Beyschlag/Draloric/BC Components):

• Substitute option with improved ESR (4.8 Ohm vs. 5.6438 Ohm) and extended lifetime (2500 Hrs @ 85°C)
• Compact form factor: 4.50mm diameter × 10.00mm length
• Maintains ±20% tolerance specification
• Suitable for space-constrained applications

MAL203036479E3 (Vishay Beyschlag/Draloric/BC Components):

• Substitute option with lowest ESR (4.8 Ohm @ 100 Hz) and longest lifetime (3000 Hrs @ 85°C)
• Intermediate form factor: 6.00mm diameter × 10.00mm length
• Tolerance specification: -10%, +50% (wider upper tolerance)
• Suitable for applications prioritizing thermal stability and extended service life

Selection between substitute parts depends on physical space constraints, ESR requirements, and lifetime specifications for the target application.

Frequently Asked Questions (FAQ)

Q: Can MAL202136479E3 or MAL203036479E3 be used as direct replacements for 476TTA025M?

A: Yes. Both Vishay parts meet the core electrical requirements: 47 µF capacitance, 25 V voltage rating, polar configuration, through-hole mounting, axial can package, and identical operating temperature range (-40°C ~ 85°C). Both are ROHS3 compliant and REACH unaffected. Physical dimensions differ, requiring verification of PCB layout compatibility.

Q: What are the key differences between the two Vishay substitute parts?

A: MAL202136479E3 features a compact 4.50mm diameter form factor with 2500-hour lifetime at 85°C. MAL203036479E3 offers a slightly larger 6.00mm diameter, lower ESR (4.8 Ohm @ 100 Hz vs. unspecified frequency for MAL202136479E3), and extended 3000-hour lifetime at 85°C. Tolerance differs: MAL202136479E3 maintains ±20%, while MAL203036479E3 specifies -10%, +50%.

Q: Does the ESR difference between 476TTA025M and the Vishay substitutes affect circuit performance?

A: ESR values are provided for reference. The 476TTA025M specifies 5.6438 Ohm @ 120 Hz, while both Vishay parts specify 4.8 Ohm. Lower ESR in substitute parts may reduce ripple voltage and heat generation in high-frequency applications. Circuit-specific analysis determines whether this difference is significant for the intended application.

Q: Are there physical space constraints when substituting parts?

A: Yes. The 476TTA025M measures 6.30mm diameter × 13.00mm length. MAL202136479E3 is more compact at 4.50mm × 10.00mm, while MAL203036479E3 measures 6.00mm × 10.00mm. PCB layout and component placement must accommodate these dimensional variations. Axial lead spacing and mounting hole positioning require verification.

Q: Do all three parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for restricted substance use and environmental compliance in regulated markets.

Q: What is the significance of the tolerance difference in MAL203036479E3?

A: MAL203036479E3 specifies -10%, +50% tolerance compared to ±20% for the other two parts. This asymmetrical tolerance allows capacitance values up to 70.5 µF (47 µF + 50%) while limiting the lower bound to 42.3 µF (47 µF - 10%). Applications requiring tighter capacitance control should prioritize 476TTA025M or MAL202136479E3.

Q: How do lifetime ratings affect part selection?

A: Lifetime ratings indicate expected operational duration at maximum rated temperature (85°C). The 476TTA025M provides 2000 hours, MAL202136479E3 provides 2500 hours, and MAL203036479E3 provides 3000 hours. Applications requiring extended service life or continuous high-temperature operation benefit from longer-rated parts.