TE Connectivity 4-1879064-9 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 4-1879064-9 is a 2.2 µF molded tantalum capacitor rated for 50 V operation in a 2312 (6032 Metric) surface mount package. This component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and production continuity. The part operates across a temperature range of -55°C to 125°C and features a 1.5 Ohm equivalent series resistance (ESR) with ±10% capacitance tolerance. Substitute parts must maintain electrical and mechanical compatibility while offering active product status for long-term availability.

Substiute Parts

4-1879064-9

TE Connectivity Passive ProductIn Stock: 9044-1879064-9 Datasheet

Current PartRFQ

593D225X9050C2TE3

Vishay SpragueIn Stock: 1285593D225X9050C2TE3 Datasheet

DirectRFQ

TR3C225K050C1500

Vishay SpragueIn Stock: 984TR3C225K050C1500 Datasheet

DirectRFQ

293D225X9050C2TE3

Vishay SpragueIn Stock: 1479293D225X9050C2TE3 Datasheet

SimilarRFQ

TAJC225K050RNJ

KYOCERA AVXIn Stock: 1308TAJC225K050RNJ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 4-1879064-9 are classified based on electrical and mechanical parameter alignment. All identified substitutes maintain the core specifications: 2.2 µF capacitance, 50 V voltage rating, ±10% tolerance, 2312 (6032 Metric) package, surface mount configuration, molded tantalum construction, -55°C to 125°C operating range, and MSL 1 rating.

The primary differentiator among substitutes is equivalent series resistance (ESR). The original part specifies 1.5 Ohm ESR. Substitute parts are grouped into two categories:

Direct Equivalents (1.5 Ohm ESR): Parts 593D225X9050C2TE3 and TR3C225K050C1500 maintain the exact 1.5 Ohm ESR specification, providing direct functional replacement without circuit re-evaluation.

Similar Alternatives (Higher ESR): Parts 293D225X9050C2TE3 (2.9 Ohm ESR) and TAJC225K050RNJ (2.5 Ohm ESR) feature elevated ESR values. These parts remain mechanically and electrically compatible within the specified package and electrical parameters but require circuit-level assessment for applications sensitive to ESR characteristics.

All substitute parts are manufactured by Vishay Sprague or KYOCERA AVX and carry active product status, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No Circuit Re-evaluation Required):

Parts 593D225X9050C2TE3 (Vishay Sprague, TANTAMOUNT™ 593D series) and TR3C225K050C1500 (Vishay Sprague, TANTAMOUNT™ TR3 series) are recommended as primary substitutes. Both maintain the 1.5 Ohm ESR specification of the original TE Connectivity part and carry active product status with ROHS3 compliance. These parts provide electrical and mechanical equivalence without requiring circuit validation. The 593D225X9050C2TE3 is available in Tape & Reel packaging, while TR3C225K050C1500 is supplied in Cut Tape & Digi-Reel® format.

For Alternative Selection (Circuit Validation Required):

Parts 293D225X9050C2TE3 (Vishay Sprague, TANTAMOUNT™ 293D series, 2.9 Ohm ESR) and TAJC225K050RNJ (KYOCERA AVX, TAJ series, 2.5 Ohm ESR) are suitable alternatives when the primary substitutes are unavailable. Both parts maintain all critical electrical and mechanical parameters but feature elevated ESR values. Selection of these alternatives requires circuit-level assessment to confirm that the higher ESR does not adversely affect circuit performance, particularly in applications with stringent ripple current or frequency response requirements. Both alternatives carry active product status and ROHS3 compliance.

Packaging Considerations:

The original TE Connectivity part is specified with standard packaging. Substitute parts are available in Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® formats. Packaging selection should align with production assembly requirements and inventory management protocols.

Compliance and Availability:

All substitute parts are REACH Unaffected and classified under ECCN EAR99, matching the regulatory status of the original component. Active product status across all substitutes ensures supply chain continuity and long-term availability for production and field service applications.

Frequently Asked Questions (FAQ)

Q: Can the 293D225X9050C2TE3 or TAJC225K050RNJ be used as direct replacements for the TE Connectivity 4-1879064-9?

A: Both parts are mechanically and electrically compatible within the specified package and electrical parameters. However, the elevated ESR values (2.9 Ohm and 2.5 Ohm respectively, compared to 1.5 Ohm in the original) require circuit-level assessment. Applications sensitive to ESR characteristics, such as high-frequency switching circuits or those with stringent ripple current specifications, must be evaluated before substitution.

Q: What is the significance of ESR in tantalum capacitor selection?

A: Equivalent Series Resistance (ESR) affects capacitor performance in high-frequency applications, ripple current handling, and thermal stability. Lower ESR values reduce heat generation and improve frequency response. The original TE Connectivity part specifies 1.5 Ohm ESR. Substitute parts with higher ESR values (2.5 Ohm or 2.9 Ohm) remain functionally compatible but may exhibit different thermal and frequency characteristics. Circuit validation is necessary when ESR differs from the original specification.

Q: Are all substitute parts RoHS compliant?

A: Yes. The Vishay Sprague parts (593D225X9050C2TE3, TR3C225K050C1500, and 293D225X9050C2TE3) and the KYOCERA AVX part (TAJC225K050RNJ) all carry ROHS3 compliance certification, matching regulatory requirements for modern electronics manufacturing.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel® packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape suitable for automated pick-and-place assembly systems. Cut Tape (CT) & Digi-Reel® packaging provides components in cut tape format with optional reel configuration, offering flexibility for lower-volume production or manual assembly processes. Selection depends on production assembly equipment and volume requirements.

Q: Can the height difference between the original part (2.70mm) and substitute parts (2.79mm to 2.80mm) affect PCB assembly?

A: The height difference of approximately 0.09mm to 0.10mm is within typical PCB assembly tolerances and does not affect component placement or solder joint formation. This minor variation is standard across equivalent tantalum capacitor designs and does not require PCB layout modification.

Q: Why is the original TE Connectivity part classified as obsolete?

A: Product obsolescence reflects manufacturer discontinuation decisions based on market demand, production efficiency, or product line consolidation. Active substitute parts from Vishay Sprague and KYOCERA AVX provide equivalent functionality with assured long-term availability and supply chain support.

Q: Are all substitute parts available in the same quantities as the original?

A: Inventory levels vary by supplier and part number. The Vishay Sprague 593D225X9050C2TE3 (1208 units), TR3C225K050C1500 (897 units), and 293D225X9050C2TE3 (1420 units), as well as the KYOCERA AVX TAJC225K050RNJ (1220 units), are currently available in stock. Availability should be confirmed with component distributors for production planning purposes.

Q: What is Moisture Sensitivity Level (MSL) and why is it important?

A: MSL indicates the maximum time a component can be exposed to ambient moisture before soldering without risk of delamination or failure. All listed parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Components can be stored and handled under standard conditions without special desiccant packaging or time-limited shelf life constraints.