TE Connectivity 4-1879062-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 4-1879062-2 is a 6.8 µF molded tantalum capacitor rated at 16 V with ±20% tolerance in a 1206 (3216 Metric) surface mount package. This component is classified as obsolete product status. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications requiring 6.8 µF tantalum capacitance at 16 V with compatible electrical and mechanical specifications.

Substiute Parts

4-1879062-2

TE Connectivity Passive ProductIn Stock: 9424-1879062-2 Datasheet

Current PartRFQ

593D685X0016A2TE3

Vishay SpragueIn Stock: 841593D685X0016A2TE3 Datasheet

DirectRFQ

TR3A685M016C3000

Vishay SpragueIn Stock: 938TR3A685M016C3000 Datasheet

DirectRFQ

593D685X9016A2TE3

Vishay SpragueIn Stock: 798593D685X9016A2TE3 Datasheet

UpgradeRFQ

T494A685M020AT

KEMETIn Stock: 915T494A685M020AT Datasheet

UpgradeRFQ

TR3A685K016C3000

Vishay SpragueIn Stock: 1256TR3A685K016C3000 Datasheet

UpgradeRFQ

293D685X0016A2TE3

Vishay SpragueIn Stock: 877293D685X0016A2TE3 Datasheet

SimilarRFQ

TAJS685M016RNJ

KYOCERA AVXIn Stock: 970TAJS685M016RNJ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 4-1879062-2 is determined by strict equivalence across the following critical parameters:

Direct Substitutes maintain identical electrical specifications: 6.8 µF capacitance, 16 V rated voltage, ±20% tolerance, 3 Ohm ESR, 1206 package, and -55°C to 125°C operating temperature range. These parts are interchangeable without circuit modification.

Upgrade Substitutes provide enhanced performance through improved tolerance (±10% instead of ±20%) or increased voltage rating (20 V instead of 16 V) while maintaining all other critical parameters. These parts are backward compatible and suitable for applications requiring tighter specifications or higher voltage margins.

Similar Substitutes share the same capacitance, voltage, tolerance, and package but differ in ESR or physical height. These parts require verification of ESR impact on circuit performance and physical clearance validation before implementation.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Preferred for Obsolescence Replacement)

The Vishay Sprague 593D685X0016A2TE3 and TR3A685M016C3000 are direct electrical and mechanical equivalents to the TE Connectivity 4-1879062-2. Both parts are active product status with ROHS3 compliance and identical specifications across capacitance, voltage, tolerance, ESR, and package dimensions. These parts are suitable for direct board-level substitution without circuit redesign.

Upgrade Substitutes (Enhanced Performance)

The Vishay Sprague 593D685X9016A2TE3 and TR3A685K016C3000 provide ±10% tolerance compared to the original ±20% tolerance while maintaining all other specifications. These upgrades are appropriate for applications requiring tighter capacitance accuracy. The KEMET T494A685M020AT offers 20 V rated voltage with ±20% tolerance and includes specified lifetime rating of 2000 hours at 125°C, suitable for applications requiring higher voltage margin or extended temperature performance.

Similar Substitutes (Conditional Use)

The Vishay Sprague 293D685X0016A2TE3 differs in ESR (4.2 Ohm versus 3 Ohm) and is suitable only when circuit design accommodates higher series resistance. The KYOCERA AVX TAJS685M016RNJ features lower ESR (2.4 Ohm) and reduced physical height (0.047" versus 0.071"), requiring verification of PCB layout clearance and confirmation that lower ESR provides circuit benefit.

All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity and REACH Unaffected status consistent with the original component.

Frequently Asked Questions (FAQ)

Q: Can I use the Vishay Sprague 593D685X0016A2TE3 as a direct replacement for the TE Connectivity 4-1879062-2?

A: Yes. The 593D685X0016A2TE3 is a direct substitute with identical capacitance (6.8 µF), voltage rating (16 V), tolerance (±20%), ESR (3 Ohm), and 1206 package dimensions. No circuit modification is required.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes maintain all original specifications and are interchangeable without design changes. Upgrade substitutes improve specific parameters—such as tolerance (±10% versus ±20%) or voltage rating (20 V versus 16 V)—while remaining backward compatible with the original circuit design.

Q: Why do some substitute parts have different ESR values?

A: ESR (Equivalent Series Resistance) varies based on internal construction and manufacturing process. The original part specifies 3 Ohm ESR. Substitutes with higher ESR (4.2 Ohm) may increase ripple current heating, while lower ESR (2.4 Ohm) reduces heating. Circuit performance impact depends on application ripple current and thermal requirements.

Q: Is the KYOCERA AVX TAJS685M016RNJ compatible with my PCB layout?

A: The TAJS685M016RNJ has a seated height of 0.047" compared to the original 0.071". Verify that your PCB layout and component clearance accommodate this reduced height. All other dimensions (length, width, and package type) are identical.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts listed are ROHS3 compliant. The original TE Connectivity 4-1879062-2 is REACH Unaffected, and all substitutes maintain this same regulatory status.

Q: Can I use the KEMET T494A685M020AT in a 16 V circuit?

A: Yes. The T494A685M020AT is rated at 20 V, which exceeds the 16 V requirement. Operating at lower voltage than the rated maximum is acceptable and provides additional voltage margin. This part is suitable for 16 V applications.

Q: What is the inventory status of substitute parts?

A: All substitute parts listed are active product status with current inventory availability ranging from 747 to 1150 pieces in stock, ensuring supply chain continuity for production requirements.