TE Connectivity 4-1879063-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 4-1879063-5 is a 4.7 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 and substitute parts for ongoing design requirements and procurement needs. The part operates across a temperature range of -55°C to 125°C with 1 Ohm equivalent series resistance and ±10% capacitance tolerance.

Substiute Parts

4-1879063-5

TE Connectivity Passive ProductIn Stock: 12234-1879063-5 Datasheet

Current PartRFQ

593D475X9020B2TE3

Vishay SpragueIn Stock: 3223593D475X9020B2TE3 Datasheet

DirectRFQ

T494B475K020AT

KEMETIn Stock: 1504T494B475K020AT Datasheet

DirectRFQ

TR3B475K020C1000

Vishay SpragueIn Stock: 1901TR3B475K020C1000 Datasheet

DirectRFQ

TR3B475K025C1000

Vishay SpragueIn Stock: 829TR3B475K025C1000 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 4-1879063-5 is determined by strict equivalence across the following critical parameters:

Direct Substitutes (20 V Rated): Parts meeting all electrical and mechanical specifications including 4.7 µF capacitance, ±10% tolerance, 20 V voltage rating, 1 Ohm ESR, -55°C to 125°C operating temperature, 1411 package, and surface mount configuration. These parts are functionally interchangeable without circuit modification.

Upgrade Substitute (25 V Rated): Parts with identical electrical and mechanical specifications except for elevated voltage rating (25 V instead of 20 V). These parts provide enhanced voltage margin and are mechanically compatible but represent a design upgrade rather than a direct replacement.

The following parameters must remain constant for valid substitution:

• Capacitance: 4.7 µF
• Tolerance: ±10%
• Type: Molded tantalum
• ESR: 1 Ohm
• Operating Temperature: -55°C to 125°C
• Package: 1411 (3528 Metric)
• Mounting: Surface Mount

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (20 V Rated):

The following parts provide direct functional equivalence to the TE Connectivity 4-1879063-5:

• 593D475X9020B2TE3 (Vishay Sprague): Active product status with ROHS3 compliance. Inventory availability: 3148 units. Identical electrical and mechanical specifications with maximum seated height of 2.11mm.

• T494B475K020AT (KEMET): Active product status with ROHS3 compliance. Inventory availability: 1438 units. Specified lifetime rating of 2000 hours at 125°C. Maximum seated height of 2.10mm matches original specification.

• TR3B475K020C1000 (Vishay Sprague): Active product status with ROHS3 compliance. Inventory availability: 1891 units. Identical electrical and mechanical specifications with maximum seated height of 2.11mm.

All direct substitutes maintain REACH Unaffected and EAR99 ECCN classifications consistent with the original part.

Upgrade Substitute (25 V Rated):

• TR3B475K025C1000 (Vishay Sprague): Active product status with ROHS3 compliance. Inventory availability: 734 units. Provides elevated voltage rating of 25 V while maintaining all other electrical and mechanical parameters. Suitable for applications requiring enhanced voltage margin within the same package footprint.

Frequently Asked Questions (FAQ)

Q: Can the 25 V rated part (TR3B475K025C1000) be used in place of the 20 V rated original part?

A: Yes. The TR3B475K025C1000 maintains identical capacitance (4.7 µF), tolerance (±10%), ESR (1 Ohm), operating temperature range (-55°C to 125°C), and package dimensions (1411/3528 Metric). The elevated voltage rating provides additional design margin and does not create incompatibility with circuits designed for 20 V operation.

Q: Are all substitute parts surface mount compatible with the original PCB layout?

A: Yes. All substitute parts utilize the 1411 (3528 Metric) package with identical footprint dimensions of 0.138" L x 0.110" W (3.50mm x 2.80mm). Maximum seated heights range from 2.10mm to 2.11mm, which is within standard PCB assembly tolerances.

Q: What is the significance of the ESR specification in selecting a substitute?

A: Equivalent Series Resistance (ESR) of 1 Ohm is a critical electrical parameter affecting circuit performance, particularly in filtering and decoupling applications. All substitute parts maintain this specification, ensuring equivalent electrical behavior in the circuit.

Q: Do all substitute parts meet the same environmental and regulatory requirements?

A: All active substitute parts are ROHS3 compliant and maintain REACH Unaffected status consistent with the original part. All parts carry EAR99 ECCN classification. Moisture Sensitivity Level (MSL) is 1 (Unlimited) across all parts, indicating no special moisture handling requirements.

Q: What is the difference between the Vishay Sprague 593D and TR3 series substitutes?

A: Both series are manufactured by Vishay Sprague and meet identical electrical and mechanical specifications for the 20 V rated application. The 593D series (593D475X9020B2TE3) and TR3 series (TR3B475K020C1000) are distinct product lines with different internal construction but equivalent external performance characteristics.

Q: Is the original TE Connectivity part still available for procurement?

A: The TE Connectivity 4-1879063-5 is classified as obsolete. Current inventory of 1137 units is available, but long-term procurement should transition to active substitute parts to ensure supply chain continuity.