TE Connectivity 4-1879064-8 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 4-1879064-8 is a 1.5 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 and substitute parts for ongoing design support and procurement. The part operates across a temperature range of -55°C to 125°C with ±20% capacitance tolerance and 1.5 Ohm equivalent series resistance (ESR).

Key Parameters

Parameter	Value
Capacitance	1.5 µF
Voltage Rating	50 V
Tolerance	±20%
Type	Molded Tantalum
ESR (Equivalent Series Resistance)	1.5 Ohm
Package / Case	2312 (6032 Metric)
Mounting Type	Surface Mount
Operating Temperature Range	-55°C to 125°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 4-1879064-8 is determined by strict equivalence across the following critical parameters:

Direct Equivalents (Identical Specifications): Parts matching all electrical and mechanical parameters—1.5 µF capacitance, ±20% tolerance, 50 V rating, 1.5 Ohm ESR, 2312 package, and -55°C to 125°C operating range—are classified as direct substitutes. These parts are functionally interchangeable without circuit redesign.

Upgrade Options (Improved Tolerance): Parts with ±10% tolerance instead of ±20% provide tighter capacitance control while maintaining all other specifications. These upgrades are suitable for applications requiring enhanced precision.

Similar Parts (Elevated ESR): Parts with identical electrical ratings and package but higher ESR values (3.4 Ohm or 4.5 Ohm) are classified as similar alternatives. These parts maintain functional compatibility but exhibit different impedance characteristics and are suitable only where ESR specifications permit higher values.

All substitute parts maintain the same 2312 (6032 Metric) surface mount package, operating temperature range, and moisture sensitivity classification as the original component.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage	ESR	Package	Product Status	RoHS Status
4-1879064-8	TE Connectivity	1.5 µF	±20%	50 V	1.5 Ohm	2312	Obsolete	REACH Unaffected
593D155X0050C2TE3	Vishay Sprague	1.5 µF	±20%	50 V	1.5 Ohm	2312	Active	ROHS3 Compliant
TPSC155M050R1500	KYOCERA AVX	1.5 µF	±20%	50 V	1.5 Ohm	2312	Active	ROHS3 Compliant
TR3C155M050C1500	Vishay Sprague	1.5 µF	±20%	50 V	1.5 Ohm	2312	Active	ROHS3 Compliant
593D155X9050C2TE3	Vishay Sprague	1.5 µF	±10%	50 V	1.5 Ohm	2312	Active	ROHS3 Compliant
TPSC155K050R1500	KYOCERA AVX	1.5 µF	±10%	50 V	1.5 Ohm	2312	Active	ROHS3 Compliant
TR3C155K050C1500	Vishay Sprague	1.5 µF	±10%	50 V	1.5 Ohm	2312	Active	ROHS3 Compliant
293D155X0050C2TE3	Vishay Sprague	1.5 µF	±20%	50 V	3.4 Ohm	2312	Active	ROHS3 Compliant
TAJC155M050RNJ	KYOCERA AVX	1.5 µF	±20%	50 V	4.5 Ohm	2312	Active	ROHS3 Compliant
TAJC155M050SNJ	KYOCERA AVX	1.5 µF	±20%	50 V	4.5 Ohm	2312	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Substitutes (Recommended Primary Options):

The following parts provide complete electrical and mechanical equivalence to the TE Connectivity 4-1879064-8:

593D155X0050C2TE3 (Vishay Sprague TANTAMOUNT™ 593D series): Active product status with ROHS3 compliance. Identical 1.5 Ohm ESR and ±20% tolerance. Tape & Reel packaging available.
TPSC155M050R1500 (KYOCERA AVX TPS series): Active product status with ROHS3 compliance. Identical electrical specifications. Tape & Reel packaging available.
TR3C155M050C1500 (Vishay Sprague TANTAMOUNT™ TR3 series): Active product status with ROHS3 compliance. Identical electrical specifications. Tape & Reel packaging available.

All three direct substitutes maintain the original 1.5 Ohm ESR specification and are suitable for direct replacement in existing designs without circuit modification.

Upgrade Options (Enhanced Tolerance):

For applications requiring tighter capacitance tolerance, the following ±10% tolerance parts are available:

593D155X9050C2TE3 (Vishay Sprague TANTAMOUNT™ 593D series)
TPSC155K050R1500 (KYOCERA AVX TPS series)
TR3C155K050C1500 (Vishay Sprague TANTAMOUNT™ TR3 series)

These upgrades maintain identical 1.5 Ohm ESR and all other mechanical specifications while providing improved capacitance accuracy.

Similar Parts (Higher ESR Applications):

For applications where elevated ESR is acceptable:

293D155X0050C2TE3 (Vishay Sprague TANTAMOUNT™ 293D series): 3.4 Ohm ESR
TAJC155M050RNJ (KYOCERA AVX TAJ series): 4.5 Ohm ESR
TAJC155M050SNJ (KYOCERA AVX TAJ series): 4.5 Ohm ESR

All substitute and upgrade parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can I directly replace the TE Connectivity 4-1879064-8 with any of the listed substitutes?

A: Direct replacement is possible with 593D155X0050C2TE3, TPSC155M050R1500, and TR3C155M050C1500. These parts maintain identical capacitance (1.5 µF), tolerance (±20%), voltage rating (50 V), ESR (1.5 Ohm), and package specifications (2312). No circuit redesign is required.

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

A: Direct substitutes maintain all original specifications including ±20% tolerance. Upgrade options feature ±10% tolerance, providing tighter capacitance control. Both categories maintain identical 1.5 Ohm ESR and all other electrical and mechanical parameters.

Q: Can I use parts with higher ESR values (3.4 Ohm or 4.5 Ohm)?

A: Parts with elevated ESR are functionally compatible only if the circuit design permits higher impedance values. ESR affects ripple current handling, voltage drop, and thermal performance. Verify that the application tolerates the increased ESR before substitution.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute and upgrade parts listed are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Q: What is the significance of the 2312 (6032 Metric) package designation?

A: The 2312 package is a surface mount form factor with dimensions 0.236" L × 0.126" W (6.00mm × 3.20mm). All listed substitutes maintain this identical package specification, ensuring mechanical compatibility with existing printed circuit board layouts and assembly processes.

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

A: Obsolete status indicates the manufacturer has discontinued production. Active equivalent parts from Vishay Sprague and KYOCERA AVX provide continued design support and procurement availability for this capacitance and voltage rating combination.

Q: What is Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture exposure controls. All listed parts maintain MSL 1 classification, requiring no special storage or handling procedures prior to assembly.

Q: Are there packaging format differences among the substitutes?

A: Most substitutes are available in Tape & Reel (TR) packaging. TAJC155M050SNJ is available without specified packaging format. Verify packaging availability with your supplier for procurement requirements.

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