TE Connectivity 1879065-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1879065-2 is a 100 µF molded tantalum capacitor rated at 4 V with ±20% tolerance, housed in a 2917 (7343 Metric) surface mount package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The original part features 200 mOhm equivalent series resistance (ESR) and operates across the temperature range of -55°C to 125°C.

Substiute Parts

1879065-2

TE Connectivity Passive ProductIn Stock: 8961879065-2 Datasheet

Current PartRFQ

T494V107K006AH

KEMETIn Stock: 753T494V107K006AH Datasheet

UpgradeRFQ

T494V107K006AT

KEMETIn Stock: 807T494V107K006AT Datasheet

UpgradeRFQ

TPSY107K016R0200

KYOCERA AVXIn Stock: 981TPSY107K016R0200 Datasheet

UpgradeRFQ

293D107X0004D2TE3

Vishay SpragueIn Stock: 772293D107X0004D2TE3 Datasheet

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592D107X0004D2T15H

Vishay SpragueIn Stock: 820592D107X0004D2T15H Datasheet

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T491D107M004AT

KEMETIn Stock: 1272T491D107M004AT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1879065-2 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Capacitance: 100 µF (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (minimum requirement)
• Voltage - Rated: Equal to or greater than 4 V
• Tolerance: ±20% or tighter
• Type: Molded or Conformal Coated tantalum
• ESR: 200 mOhm or lower
• Moisture Sensitivity Level: 1 or 2A

Upgrade Parts are active components with voltage ratings exceeding the original 4 V specification, providing enhanced design margin and improved reliability through higher voltage headroom.

Similar Parts maintain the original 4 V voltage rating and ±20% tolerance while offering alternative ESR characteristics or coating types, suitable for direct replacement in equivalent electrical conditions.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement with Enhanced Reliability:

The KEMET T494V107K006AT is the preferred upgrade substitute. This part maintains identical capacitance, package, and ESR specifications while providing 6.3 V rated voltage (58% higher than the original 4 V rating). The component is ROHS3 compliant, active in production, and features improved tolerance (±10% versus ±20%). The reduced seated height (0.079" versus 0.118") provides additional design flexibility for space-constrained applications.

For Maximum Voltage Margin:

The KYOCERA AVX TPSY107K016R0200 offers the highest voltage rating at 16 V, providing substantial design margin for applications requiring enhanced overvoltage protection. This part is ROHS3 compliant and active in production. The identical ESR (200 mOhm) and reduced height (0.079") match the performance characteristics of the KEMET upgrade option.

For Direct Electrical Equivalence at Original Voltage:

The Vishay Sprague 293D107X0004D2TE3 maintains the original 4 V voltage rating and ±20% tolerance, ensuring electrical equivalence in applications where voltage margin is not a design constraint. This part is ROHS3 compliant and active in production. The higher ESR (700 mOhm) requires verification against circuit performance requirements.

The Vishay Sprague 592D107X0004D2T15H provides conformal coating for enhanced environmental protection in applications requiring moisture resistance beyond standard MSL 1 specifications. This part features intermediate ESR (350 mOhm) and the lowest seated height (0.059"), suitable for high-density PCB layouts.

For Cost-Optimized Replacement:

The KEMET T491D107M004AT maintains the original 4 V rating and ±20% tolerance with ROHS3 compliance and active production status. The higher ESR (800 mOhm) requires circuit-level validation to confirm acceptable performance in ripple current and transient response applications.

Frequently Asked Questions (FAQ)

Q: Can the T494V107K006AT be used as a direct replacement for the 1879065-2?

A: Yes. The T494V107K006AT is electrically and mechanically compatible. Both components share identical capacitance (100 µF), package (2917), ESR (200 mOhm), and operating temperature range (-55°C to 125°C). The higher voltage rating (6.3 V versus 4 V) and improved tolerance (±10% versus ±20%) provide enhanced performance margins. The reduced height (0.079" versus 0.118") must be verified against PCB layout constraints.

Q: What is the difference between molded and conformal coated tantalum capacitors?

A: Molded tantalum capacitors feature a plastic encapsulation over the component body. Conformal coated tantalum capacitors receive an additional protective coating applied to the component surface. The Vishay Sprague 592D107X0004D2T15H is conformal coated, providing enhanced moisture protection (MSL 2A versus MSL 1) at the cost of higher ESR (350 mOhm versus 200 mOhm) and reduced seated height (0.059" versus 0.118").

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

A: ESR (Equivalent Series Resistance) varies based on component design, manufacturing process, and coating type. Higher ESR values increase impedance at high frequencies and generate more heat under ripple current conditions. The KEMET T491D107M004AT (800 mOhm) and Vishay Sprague 293D107X0004D2TE3 (700 mOhm) require circuit validation to confirm acceptable performance in applications with significant AC ripple current or transient response requirements.

Q: Are all substitute parts RoHS compliant?

A: No. The KEMET T494V107K006AH is RoHS non-compliant. The KEMET T494V107K006AT, KYOCERA AVX TPSY107K016R0200, Vishay Sprague 293D107X0004D2TE3, Vishay Sprague 592D107X0004D2T15H, and KEMET T491D107M004AT are all ROHS3 compliant. RoHS compliance status must be verified against procurement and regulatory requirements.

Q: What is the significance of the voltage rating difference?

A: The original 1879065-2 is rated at 4 V. Substitute parts with higher voltage ratings (6.3 V or 16 V) provide increased design margin and improved reliability under transient overvoltage conditions. However, higher voltage ratings do not alter the component's performance at the original 4 V operating point. Selection of higher voltage parts is driven by application-specific reliability and safety requirements.

Q: Can the 592D107X0004D2T15H be used in applications requiring MSL 1 handling?

A: No. The 592D107X0004D2T15H is rated MSL 2A (4 weeks), requiring more stringent moisture control during storage and assembly compared to MSL 1 (unlimited) components. Applications with established MSL 1 supply chain processes must use alternative parts with MSL 1 ratings.

Q: What is the impact of tolerance differences on circuit performance?

A: The original 1879065-2 features ±20% tolerance. Substitute parts with ±10% tolerance (KEMET T494V107K006AH and T494V107K006AT, KYOCERA AVX TPSY107K016R0200) provide tighter capacitance control, reducing circuit performance variation. Applications with tight filtering or timing requirements benefit from improved tolerance specifications.

Q: Are all substitute parts available in the same packaging format?

A: No. The KEMET T494V107K006AH is supplied in Tape & Reel (TR) packaging. The KYOCERA AVX TPSY107K016R0200 is supplied in Bulk packaging. The Vishay Sprague 293D107X0004D2TE3 and 592D107X0004D2T15H are supplied in Tape & Reel (TR) packaging. The KEMET T491D107M004AT is supplied in Tape & Reel (TR) packaging. Packaging format must be verified against assembly process requirements and minimum order quantities.