Equivalent & Substitute Parts for 4-1879063-7

Part Overview

The TE Connectivity 4-1879063-7 is a 6.8 µF molded tantalum capacitor rated for 20 V operation in a 1411 (3528 Metric) surface mount package. This component is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing production and maintenance applications. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement without circuit redesign.

Substiute Parts

4-1879063-7

TE Connectivity Passive ProductIn Stock: 9114-1879063-7 Datasheet

Current PartRFQ

593D685X9020B2TE3

Vishay SpragueIn Stock: 723593D685X9020B2TE3 Datasheet

DirectRFQ

TR3B685K020C1000

Vishay SpragueIn Stock: 930TR3B685K020C1000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 4-1879063-7 is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Capacitance value: 6.8 µF
• Tolerance: ±10%
• Voltage rating: 20 V (minimum)
• ESR: 1 Ohm
• Operating temperature range: -55°C to 125°C

Mechanical Equivalence Criteria:

• Package type: 1411 (3528 Metric)
• Mounting type: Surface Mount
• Physical dimensions: 0.138" L × 0.110" W (3.50 mm × 2.80 mm)
• Maximum seated height: 0.083" (2.10 mm or 2.11 mm)
• Moisture sensitivity: MSL 1

Compliance Criteria:

• REACH Status: REACH Unaffected
• ECCN: EAR99
• HTSUS: 8532.21.0050

All identified substitute parts meet these criteria and are classified as active products, ensuring continued availability and supply chain reliability.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TR3B685K020C1000 (Vishay Sprague)

The TR3B685K020C1000 is the recommended substitute for the obsolete TE Connectivity 4-1879063-7. This part is classified as active and carries RoHS3 compliance certification, ensuring long-term availability and regulatory alignment. The TR3 series from Vishay Sprague maintains full electrical and mechanical equivalence with zero deviation in critical parameters.

Secondary Substitute: 593D685X9020B2TE3 (Vishay Sprague)

The 593D685X9020B2TE3 provides an alternative active substitute with identical electrical specifications and mechanical compatibility. This part is also RoHS3 compliant and available in Tape & Reel packaging. Both Vishay Sprague alternatives are suitable for direct replacement in the 1411 (3528 Metric) package footprint.

Compliance and Availability:

Both substitute parts maintain REACH Unaffected status and EAR99 export classification, matching the original component's regulatory profile. The transition from the obsolete TE Connectivity part to either active Vishay Sprague alternative presents no compliance barriers for existing designs.

Frequently Asked Questions (FAQ)

Q: Can the TR3B685K020C1000 or 593D685X9020B2TE3 be used as direct replacements for the 4-1879063-7?

A: Yes. Both parts are direct substitutes. They share identical capacitance (6.8 µF), voltage rating (20 V), tolerance (±10%), ESR (1 Ohm), operating temperature range (-55°C to 125°C), and package dimensions (1411 / 3528 Metric). No circuit modifications are required.

Q: What is the difference between the two substitute parts?

A: The primary difference is the series designation and packaging format. The TR3B685K020C1000 belongs to the TR3 series, while the 593D685X9020B2TE3 belongs to the 593D series. Both are manufactured by Vishay Sprague and are electrically and mechanically equivalent. Selection between them depends on packaging availability and supply chain preferences.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both the TR3B685K020C1000 and 593D685X9020B2TE3 are RoHS3 compliant, providing improved environmental and regulatory alignment compared to the obsolete TE Connectivity part.

Q: Will the substitute parts fit the existing PCB footprint?

A: Yes. Both substitute parts use the identical 1411 (3528 Metric) package with matching physical dimensions (0.138" L × 0.110" W / 3.50 mm × 2.80 mm) and maximum seated height (0.083" / 2.10-2.11 mm). No PCB redesign is necessary.

Q: What is the MSL rating for the substitute parts?

A: Both substitute parts carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling. This matches the original component's MSL specification.

Q: Are there any electrical performance differences between the original and substitute parts?

A: No. The substitute parts maintain identical ESR (1 Ohm), operating temperature range (-55°C to 125°C), and all other electrical parameters. Performance in the circuit is equivalent.

Q: What packaging options are available for the substitute parts?

A: The TR3B685K020C1000 and 593D685X9020B2TE3 are supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes. This is standard for surface mount tantalum capacitors in this package class.