T86E476M020ESSL Equivalent & Substitute Parts

Part Overview

The T86E476M020ESSL is a 47 µF molded tantalum capacitor rated at 20 V, manufactured by Vishay Sprague as part of the TANTAMOUNT™ T86 series. This component features a 2917 (7343 Metric) package with 300 mOhm ESR and is designed for surface mount applications across industrial and commercial electronics. The part is currently obsolete, necessitating identification of equivalent alternatives that maintain electrical and mechanical compatibility for ongoing system support and new designs.

Substiute Parts

T86E476M020ESSL

Vishay SpragueIn Stock: 1046T86E476M020ESSL Datasheet

Current PartRFQ

T83E476K025EZZL

Vishay SpragueIn Stock: 1031T83E476K025EZZL Datasheet

UpgradeRFQ

T496X476M020AT

KEMETIn Stock: 720T496X476M020AT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the T86E476M020ESSL is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Capacitance: 47 µF (exact match required)
• Voltage Rating: 20 V minimum (equal or higher acceptable)
• ESR: 300 mOhm (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)
• Type: Molded Tantalum (exact match required)

Secondary Considerations:

• Tolerance: ±20% or tighter acceptable
• Physical dimensions must remain within specified limits
• MSL rating of 1 (Unlimited) maintained

Two substitute parts meet these criteria: the T83E476K025EZZL (Vishay Sprague upgrade with higher voltage rating and tighter tolerance) and the T496X476M020AT (KEMET direct equivalent with identical electrical specifications).

Parameter Comparison

Engineering Selection Recommendations

T83E476K025EZZL (Vishay Sprague Upgrade): This substitute provides an upgrade path within the Vishay Sprague product line. The 25 V voltage rating provides additional design margin over the original 20 V specification. The tighter ±10% tolerance improves capacitance accuracy compared to the ±20% original specification. Both parts maintain identical ESR, package dimensions, and operating temperature ranges. The part remains RoHS non-compliant, matching the original compliance status. This option is suitable for applications where voltage margin and tolerance improvement are beneficial.

T496X476M020AT (KEMET Direct Equivalent): This substitute maintains exact electrical specifications (47 µF, 20 V, ±20%, 300 mOhm ESR) and identical package geometry. The KEMET T496 series provides a direct functional replacement with active product status and ROHS3 compliance, offering improved regulatory alignment compared to the obsolete Vishay part. Lifetime rating of 2000 hours at 85°C is specified. This option is suitable for applications requiring direct electrical equivalence and modern compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can the T83E476K025EZZL be used as a direct replacement for the T86E476M020ESSL?

A: Yes. The T83E476K025EZZL meets all primary substitution criteria: identical 47 µF capacitance, 300 mOhm ESR, 2917 package, surface mount configuration, and -55°C to 125°C operating range. The 25 V rating exceeds the 20 V requirement, and ±10% tolerance is tighter than the original ±20%. Physical dimensions remain compatible with maximum seated height of 0.170" versus 0.169" original.

Q: What is the difference between the two substitute options?

A: The T83E476K025EZZL is a Vishay Sprague upgrade offering higher voltage rating (25 V vs. 20 V) and improved tolerance (±10% vs. ±20%). The T496X476M020AT is a KEMET direct equivalent maintaining identical electrical specifications (20 V, ±20%) with ROHS3 compliance and active product status. Selection depends on whether voltage margin and tolerance improvement (Vishay option) or regulatory compliance and direct equivalence (KEMET option) are prioritized.

Q: Are the physical dimensions compatible for PCB layout?

A: Yes. All three parts use the 2917 (7343 Metric) package with 0.287" L x 0.169" W footprint. The T83E476K025EZZL seated height is 0.170" maximum versus 0.169" for the original and KEMET part, representing a 0.001" (0.02 mm) difference that does not affect standard PCB assembly or clearance requirements.

Q: What is the impact of RoHS compliance differences?

A: The original T86E476M020ESSL and T83E476K025EZZL are RoHS non-compliant. The T496X476M020AT is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the KEMET T496X476M020AT is the appropriate selection. For legacy systems or applications without RoHS mandates, either substitute is acceptable from a compliance perspective.

Q: Can these parts be used interchangeably in the same circuit?

A: Yes, within the constraints of the specified parameters. All three parts share identical capacitance (47 µF), ESR (300 mOhm), package (2917), mounting type (surface mount), and operating temperature range (-55°C to 125°C). The T83E476K025EZZL's higher voltage rating and tighter tolerance provide enhanced performance margins. The T496X476M020AT provides direct electrical equivalence with modern compliance certification.