TE Connectivity 4-1879063-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 4-1879063-2 is a 2.2 µF molded tantalum capacitor rated for 20 V operation in a 1411 (3528 Metric) surface mount package. This component is classified as obsolete product status. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications. Substitute parts maintain the same capacitance, package footprint, and electrical characteristics while offering improved product status, enhanced tolerance specifications, or higher voltage ratings.

Key Parameters

Parameter	Value
Capacitance	2.2 µF
Voltage Rating	20 V
Tolerance	±20%
Type	Molded Tantalum
ESR (Equivalent Series Resistance)	1.5 Ohm
Package / Case	1411 (3528 Metric)
Mounting Type	Surface Mount
Operating Temperature Range	-55°C to 125°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 4-1879063-2 are selected based on the following criteria:

Primary Compatibility Parameters:

Capacitance: 2.2 µF (exact match required)
Package / Case: 1411 (3528 Metric) (exact match required)
Mounting Type: Surface Mount (exact match required)
ESR: 1.5 Ohm (exact match required)
Operating Temperature Range: -55°C to 125°C (exact match required)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Secondary Selection Parameters:

Voltage Rating: 20 V minimum (equal or higher voltage ratings are acceptable)
Tolerance: ±20% or tighter (±10% tolerance represents an upgrade)
Product Status: Active status preferred over obsolete

Substitute parts are grouped into two categories: direct equivalents (matching voltage and tolerance) and upgrades (higher voltage ratings or improved tolerance specifications). All substitute parts maintain identical physical dimensions, electrical performance characteristics, and thermal operating parameters.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage Rating	Tolerance	ESR	Package	Product Status	RoHS Status
4-1879063-2	TE Connectivity	TYTR	2.2 µF	20 V	±20%	1.5 Ohm	1411 (3528 Metric)	Obsolete	Not specified
593D225X0025B2TE3	Vishay Sprague	593D	2.2 µF	25 V	±20%	1.5 Ohm	1411 (3528 Metric)	Active	ROHS3 Compliant
593D225X9025B2TE3	Vishay Sprague	593D	2.2 µF	25 V	±10%	1.5 Ohm	1411 (3528 Metric)	Active	ROHS3 Compliant
T495B225K035ATE1K5	KEMET	T495	2.2 µF	35 V	±10%	1.5 Ohm	1411 (3528 Metric)	Active	ROHS3 Compliant
TR3B225K025C1500	Vishay Sprague	TR3	2.2 µF	25 V	±10%	1.5 Ohm	1411 (3528 Metric)	Active	ROHS3 Compliant
TR3B225K035C1500	Vishay Sprague	TR3	2.2 µF	35 V	±10%	1.5 Ohm	1411 (3528 Metric)	Active	ROHS3 Compliant
TR3B225M025C1500	Vishay Sprague	TR3	2.2 µF	25 V	±20%	1.5 Ohm	1411 (3528 Metric)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Same Voltage, Same Tolerance):

TR3B225M025C1500 (Vishay Sprague) is the direct equivalent to the TE Connectivity 4-1879063-2. This part maintains identical electrical specifications (2.2 µF, 20 V, ±20% tolerance, 1.5 Ohm ESR) and physical package dimensions. The TR3B225M025C1500 carries active product status and ROHS3 compliance, providing improved component availability and regulatory alignment compared to the obsolete original part.

Voltage Upgrade Options (Higher Voltage Rating):

Parts with 25 V or 35 V ratings provide increased voltage margin for the same 2.2 µF capacitance and 1411 package. These upgrades are electrically compatible in applications where the original 20 V rating is specified, as they operate within the same physical envelope and maintain identical ESR characteristics.

593D225X0025B2TE3 (Vishay Sprague): 25 V, ±20% tolerance, active status
TR3B225M025C1500 (Vishay Sprague): 25 V, ±20% tolerance, active status
593D225X9025B2TE3 (Vishay Sprague): 25 V, ±10% tolerance, active status
TR3B225K025C1500 (Vishay Sprague): 25 V, ±10% tolerance, active status
T495B225K035ATE1K5 (KEMET): 35 V, ±10% tolerance, active status
TR3B225K035C1500 (Vishay Sprague): 35 V, ±10% tolerance, active status

Tolerance Upgrade Options (Tighter Tolerance):

Parts with ±10% tolerance provide improved capacitance accuracy compared to the original ±20% specification. These upgrades maintain the same voltage rating or higher and are suitable for applications requiring tighter capacitance control.

All substitute parts listed maintain REACH Unaffected status, EAR99 ECCN classification, and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage procedures.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher voltage rating than the original 20 V specification?

A: Yes. Substitute parts with 25 V or 35 V ratings are electrically compatible with applications designed for 20 V operation. Higher voltage ratings provide additional safety margin and do not affect circuit performance when the capacitor is operated below its rated voltage.

Q: What is the difference between ±20% and ±10% tolerance specifications?

A: Tolerance defines the allowable deviation of actual capacitance from the nominal 2.2 µF value. ±20% tolerance allows capacitance between 1.76 µF and 2.64 µF. ±10% tolerance allows capacitance between 1.98 µF and 2.42 µF. Applications requiring tighter capacitance control should specify ±10% tolerance parts.

Q: Are all substitute parts physically identical to the original 4-1879063-2?

A: Yes. All substitute parts use the 1411 (3528 Metric) package with identical dimensions: 0.138" L x 0.110" W (3.50mm x 2.80mm) and maximum seated height of 0.083" (2.10mm to 2.11mm). All parts are surface mount components with identical footprints and mounting requirements.

Q: What is ESR and why is it important?

A: Equivalent Series Resistance (ESR) represents the internal resistance of the capacitor at operating frequency. All listed parts maintain 1.5 Ohm ESR, ensuring identical electrical performance and ripple current handling characteristics. ESR directly affects capacitor heating and frequency response in circuit applications.

Q: Why is the original TE Connectivity 4-1879063-2 listed as obsolete?

A: Obsolete product status indicates the manufacturer has discontinued production. Substitute parts with active status ensure continued component availability for new production builds and field repairs without supply chain interruption.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed carry ROHS3 compliance certification. The original TE Connectivity 4-1879063-2 does not specify RoHS status. ROHS3 compliance ensures the parts meet current environmental and regulatory requirements for electronic component manufacturing and use.

Q: Can I mix different substitute parts in the same circuit board assembly?

A: Yes. All substitute parts maintain identical electrical characteristics (2.2 µF capacitance, 1.5 Ohm ESR, -55°C to 125°C operating range) and physical package dimensions. Parts may be used interchangeably within the same design without circuit modification or performance degradation.

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

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed parts carry MSL 1 rating, eliminating the need for desiccant packaging or bake-out procedures prior to assembly.

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