T86C155K050ESAS Equivalent & Substitute Parts

Part Overview

The T86C155K050ESAS is a 1.5 µF molded tantalum capacitor rated at 50 V, manufactured by Vishay Sprague under the TANTAMOUNT™ series. This component is designed for surface mount applications in the 2312 (6032 Metric) package format. The part is currently obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support, maintenance, and new design implementations where legacy component specifications must be maintained.

Substiute Parts

T86C155K050ESAS

Vishay SpragueIn Stock: 1182T86C155K050ESAS Datasheet

Current PartRFQ

TAJC155K050RNJ

KYOCERA AVXIn Stock: 1243TAJC155K050RNJ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the T86C155K050ESAS is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 1.5 µF (exact match required)
• Tolerance: ±10% (electrical performance window)
• Voltage Rating: 50 V (minimum rated voltage must equal or exceed original specification)
• Package / Case: 2312 (6032 Metric) (physical and electrical compatibility)
• Mounting Type: Surface Mount (assembly process compatibility)
• Operating Temperature Range: -55°C to 125°C (thermal operating envelope)
• Type: Molded Tantalum (material and construction class)

The TAJC155K050RNJ from KYOCERA AVX meets all substitution criteria. This part maintains identical electrical specifications, package geometry, and thermal performance while offering improved ESR characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The TAJC155K050RNJ is the direct functional equivalent for the obsolete T86C155K050ESAS. Selection criteria are based on the following factors:

Product Status: The T86C155K050ESAS is obsolete. The TAJC155K050RNJ maintains active product status, ensuring long-term availability and supply chain continuity.

Compliance & Certifications: The TAJC155K050RNJ is ROHS3 compliant, whereas the original part is RoHS non-compliant. Both parts carry REACH Unaffected status and EAR99 ECCN classification. For applications requiring RoHS compliance, the TAJC155K050RNJ satisfies regulatory requirements.

Electrical Performance: The TAJC155K050RNJ delivers improved ESR performance (4.5 Ohm versus 5 Ohm), resulting in lower power dissipation and reduced thermal stress in high-frequency or high-current applications.

Physical & Thermal Compatibility: Identical package dimensions, height, and thermal operating range ensure direct board-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can the TAJC155K050RNJ be used as a direct replacement for the T86C155K050ESAS?

A: Yes. The TAJC155K050RNJ is electrically and mechanically equivalent. Identical capacitance, voltage rating, tolerance, package geometry, and operating temperature range permit direct substitution without circuit redesign.

Q: What is the significance of the ESR difference between the two parts?

A: The TAJC155K050RNJ exhibits lower ESR (4.5 Ohm versus 5 Ohm). This improvement reduces resistive losses and heat generation, particularly beneficial in applications with high ripple current or switching frequencies. The difference is within normal manufacturing variation for tantalum capacitors and does not affect functional compatibility.

Q: Are there packaging differences between these parts?

A: No. Both parts use the 2312 (6032 Metric) surface mount package with identical physical dimensions (0.236" L × 0.126" W) and maximum seated height (0.110"). They are compatible with the same PCB footprints and assembly processes.

Q: What is the impact of RoHS compliance differences?

A: The T86C155K050ESAS is RoHS non-compliant; the TAJC155K050RNJ is ROHS3 compliant. For new designs or applications subject to RoHS regulations, the TAJC155K050RNJ is the appropriate selection. For legacy system maintenance where RoHS compliance is not mandated, both parts are functionally equivalent.

Q: How does moisture sensitivity level affect handling and storage?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard component storage practices apply; no special desiccant packaging or baking procedures are required prior to assembly.

Q: Is the TAJC155K050RNJ available in the same packaging format as the original part?

A: The TAJC155K050RNJ is supplied in Tape & Reel (TR) format, whereas the original part inventory status does not specify packaging format. Tape & Reel packaging is standard for surface mount tantalum capacitors and is compatible with automated assembly equipment.