T86E476K020EASL Equivalent & Substitute Parts

Part Overview

The T86E476K020EASL is a 47 µF molded tantalum capacitor rated at 20 V with 300 mOhm ESR, manufactured by Vishay Sprague in the 2917 (7343 Metric) package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing production and maintenance applications. Substitute parts must maintain electrical compatibility across capacitance, voltage rating, tolerance, and physical package specifications while considering ESR characteristics and product status.

Substiute Parts

T86E476K020EASL

Vishay SpragueIn Stock: 987T86E476K020EASL Datasheet

Current PartRFQ

T83E476K025EZZL

Vishay SpragueIn Stock: 1031T83E476K025EZZL Datasheet

UpgradeRFQ

T83D476K020EZZS

Vishay SpragueIn Stock: 790T83D476K020EZZS Datasheet

MFR RecommendedRFQ

T83E476K020EZZL

Vishay SpragueIn Stock: 987T83E476K020EZZL Datasheet

MFR RecommendedRFQ

T496X476K020ATE300

KEMETIn Stock: 3595T496X476K020ATE300 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Primary Compatibility Criteria:

• Capacitance: 47 µF (exact match required)
• Voltage Rating: 20 V minimum (equal or higher acceptable)
• Tolerance: ±10% (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Operating Temperature: -55°C to 125°C (exact match required)
• Mounting Type: Surface Mount (exact match required)

Secondary Consideration:

• ESR (Equivalent Series Resistance): Provided for circuit performance evaluation; lower ESR values indicate improved performance characteristics

Substitute parts are categorized as follows:

Upgrade Substitute: Higher voltage rating (25 V) with identical capacitance and package, providing enhanced voltage margin.

Manufacturer Recommended Substitutes: Active Vishay Sprague parts with identical electrical specifications and package, differing in ESR or physical height.

Direct Cross-Reference: KEMET T496 series part with identical electrical and package specifications, offering active product status and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): T83E476K020EZZL is the primary active equivalent, offering identical electrical parameters (47 µF, 20 V, ±10%, 300 mOhm ESR) with active product status and Tape & Reel packaging. This part maintains full compatibility with the obsolete T86E476K020EASL.

For Improved ESR Performance: T83E476K020EZZL provides superior ESR characteristics at 150 mOhm, reducing power dissipation and heat generation compared to the original 300 mOhm specification. This part is recommended for applications sensitive to ESR-related performance degradation.

For Reduced Physical Height: T83D476K020EZZS offers a lower seated height of 0.122" (3.10 mm) versus 0.169" (4.30 mm), accommodating space-constrained PCB layouts while maintaining identical electrical specifications. Note the higher ESR of 700 mOhm.

For Enhanced Voltage Margin: T83E476K025EZZL provides 25 V rating with identical 47 µF capacitance and 300 mOhm ESR, offering increased voltage headroom for circuits operating near the 20 V limit.

For RoHS3 Compliance: T496X476K020ATE300 (KEMET) is the only RoHS3-compliant option, maintaining identical electrical specifications (47 µF, 20 V, ±10%, 300 mOhm ESR) and package dimensions. This part includes fail-safe fuse protection and 2000-hour lifetime rating at 85°C.

Frequently Asked Questions (FAQ)

Q: Can T83E476K025EZZL (25 V) be used in place of T86E476K020EASL (20 V)? A: Yes. The 25 V rating is a higher voltage specification and is electrically compatible with 20 V circuit requirements. The capacitance (47 µF), tolerance (±10%), package (2917), and ESR (300 mOhm) are identical.

Q: What is the significance of ESR differences between substitute parts? A: ESR affects power dissipation, ripple current handling, and frequency response. Lower ESR (150 mOhm in T83E476K020EZZL) reduces heat generation; higher ESR (700 mOhm in T83D476K020EZZS) increases dissipation. Select based on circuit ripple current requirements and thermal constraints.

Q: Are all substitute parts pin-compatible with the original T86E476K020EASL? A: Yes. All substitute parts use the 2917 (7343 Metric) package with identical footprint and mounting type (Surface Mount). Physical height variations (0.122" to 0.170") do not affect electrical compatibility but may impact PCB clearance.

Q: Which substitute part is recommended for new designs? A: T496X476K020ATE300 (KEMET) is recommended for new designs requiring RoHS3 compliance. For existing designs, T83E476K020EZZL provides the most direct active equivalent with improved ESR performance.

Q: Is the T86E476K020EASL still available for purchase? A: The T86E476K020EASL is classified as obsolete. All substitute parts listed are active and available in production quantities.

Q: Can substitute parts be mixed in the same assembly? A: Yes, provided circuit design accommodates the electrical parameter ranges. Mixing parts with different ESR values (150 mOhm, 300 mOhm, 700 mOhm) is acceptable if ripple current and thermal performance remain within specification.