T86C155K050ESSL Equivalent & Substitute Parts

Part Overview

The T86C155K050ESSL is a 1.5 µF molded tantalum capacitor rated for 50 V operation in a 2312 (6032 Metric) surface mount package. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part features a fail-safe design with built-in fuse and is rated for high reliability applications across an operating temperature range of -55°C to 125°C.

Substiute Parts

T86C155K050ESSL

Vishay SpragueIn Stock: 1016T86C155K050ESSL Datasheet

Current PartRFQ

293D155X9050C2TE3

Vishay SpragueIn Stock: 2011293D155X9050C2TE3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the T86C155K050ESSL is determined by strict equivalence across the following parameters:

• Capacitance value: 1.5 µF
• Tolerance: ±10%
• Voltage rating: 50 V
• Package / Case: 2312 (6032 Metric)
• Mounting type: Surface Mount
• Operating temperature range: -55°C to 125°C
• Moisture sensitivity level: 1 (Unlimited)

The 293D155X9050C2TE3 meets all these criteria and qualifies as a direct substitute. Minor variations in ESR (3.4 Ohm versus 3.2 Ohm) and physical height (2.79 mm versus 2.80 mm) remain within acceptable tolerances for this component category and do not affect functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 293D155X9050C2TE3 is the qualified substitute for the T86C155K050ESSL. The substitute part is manufactured by the same supplier (Vishay Sprague) and maintains electrical and mechanical equivalence across all critical parameters. The primary advantage of the 293D155X9050C2TE3 is its active product status and ROHS3 compliance, providing improved long-term availability and regulatory alignment compared to the obsolete main part. The ESR differential of 0.2 Ohm and height variance of 0.01 mm are negligible for circuit performance and PCB layout considerations.

Frequently Asked Questions (FAQ)

Q: Can the 293D155X9050C2TE3 be used as a direct replacement for the T86C155K050ESSL?

A: Yes. Both parts share identical capacitance (1.5 µF), voltage rating (50 V), tolerance (±10%), package (2312), and operating temperature range (-55°C to 125°C). The parts are pin-compatible and functionally equivalent.

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

A: The ESR difference of 0.2 Ohm (3.2 Ohm versus 3.4 Ohm) is within normal manufacturing variation for molded tantalum capacitors and does not impact circuit functionality or performance in standard applications.

Q: Does the height difference affect PCB layout?

A: No. The height variance of 0.01 mm (2.80 mm versus 2.79 mm) is negligible and does not require PCB layout modifications.

Q: Why is RoHS compliance important for this substitution?

A: The substitute part (293D155X9050C2TE3) is ROHS3 compliant, whereas the main part is non-compliant. For new designs or production requiring regulatory compliance, the substitute part is the appropriate choice.

Q: Are there any packaging differences between these parts?

A: The main part is supplied in standard packaging, while the substitute is available in Tape & Reel (TR) format. Both are surface mount compatible and functionally identical.