TE Connectivity 1879063-8 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1879063-8 is a 22 µF molded tantalum capacitor rated at 4 V with ±20% tolerance, housed in a 1411 (3528 Metric) surface mount package. This component belongs to the TYTR series and is classified as obsolete. The 4 V rating and obsolete status necessitate identification of active equivalent and substitute parts that maintain functional compatibility while offering improved availability and compliance status.

Key Parameters

Parameter	Value
Capacitance	22 µF
Voltage Rating	4 V
Tolerance	±20%
Type	Molded Tantalum
ESR (Equivalent Series Resistance)	600 mOhm
Package / Case	1411 (3528 Metric)
Mounting Type	Surface Mount
Operating Temperature Range	-55°C to 125°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1879063-8 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Capacitance: 22 µF (exact match required)
Package / Case: 1411 (3528 Metric) (exact match required)
Mounting Type: Surface Mount (exact match required)
ESR: 600 mOhm (exact match required)
Operating Temperature Range: -55°C to 125°C (exact match required)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Allowable Upgrade Parameters:

Voltage Rating: The original 4 V rating can be upgraded to 6.3 V, 16 V, or 20 V. Higher voltage ratings provide enhanced design margin and are electrically compatible in applications requiring 4 V operation.
Tolerance: The original ±20% tolerance can be upgraded to ±10%. Tighter tolerance provides improved capacitance accuracy.
Product Status: Active parts are preferred over obsolete parts for long-term availability and supply chain reliability.

Substitute parts are grouped by voltage rating and tolerance combinations while maintaining all mandatory compatibility parameters.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	ESR	Package	Product Status	RoHS Status
1879063-8	TE Connectivity	22 µF	4 V	±20%	600 mOhm	1411 (3528 Metric)	Obsolete	Not specified
593D226X06R3B2TE3	Vishay Sprague	22 µF	6.3 V	±20%	600 mOhm	1411 (3528 Metric)	Active	ROHS3 Compliant
593D226X96R3B2TE3	Vishay Sprague	22 µF	6.3 V	±10%	600 mOhm	1411 (3528 Metric)	Active	ROHS3 Compliant
T494B226M006AH	KEMET	22 µF	6.3 V	±20%	600 mOhm	1411 (3528 Metric)	Active	RoHS non-compliant
T495B226K016ATE600	KEMET	22 µF	16 V	±10%	600 mOhm	1411 (3528 Metric)	Active	ROHS3 Compliant
TR3B226K016C0600	Vishay Sprague	22 µF	16 V	±10%	600 mOhm	1411 (3528 Metric)	Active	ROHS3 Compliant
TR3B226K020C0600	Vishay Sprague	22 µF	20 V	±10%	600 mOhm	1411 (3528 Metric)	Active	ROHS3 Compliant
TR3B226K6R3C0600	Vishay Sprague	22 µF	6.3 V	±10%	600 mOhm	1411 (3528 Metric)	Active	ROHS3 Compliant
TR3B226M020C0600	Vishay Sprague	22 µF	20 V	±20%	600 mOhm	1411 (3528 Metric)	Active	ROHS3 Compliant
TR3B226M6R3C0600	Vishay Sprague	22 µF	6.3 V	±20%	600 mOhm	1411 (3528 Metric)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Selection Criteria:

All substitute parts listed maintain identical capacitance, package dimensions, ESR characteristics, and operating temperature range as the original TE Connectivity 1879063-8. Selection among substitutes is determined by application voltage requirements and compliance mandates.

Voltage Rating Selection:

For applications operating at 4 V or below, any substitute part with a voltage rating of 6.3 V or higher is electrically compatible. Higher voltage ratings provide additional design margin without affecting circuit performance.

Compliance Considerations:

Parts with ROHS3 Compliant status are preferred for new designs and applications subject to RoHS regulations. The KEMET T494B226M006AH is RoHS non-compliant and should be selected only when legacy compliance status is explicitly required.

Product Status:

All substitute parts carry Active product status, ensuring long-term availability and supply chain continuity. The original TE Connectivity 1879063-8 is obsolete and should be replaced in active designs.

Tolerance Upgrade Path:

Applications requiring improved capacitance accuracy benefit from substitutes with ±10% tolerance. Parts with ±10% tolerance (593D226X96R3B2TE3, T495B226K016ATE600, TR3B226K016C0600, TR3B226K020C0600, TR3B226K6R3C0600) provide tighter specification control compared to the original ±20% tolerance.

Manufacturer Availability:

Vishay Sprague TANTAMOUNT™ series parts (TR3 and 593D) and KEMET T495 series parts offer the highest inventory levels among available substitutes, supporting production volume requirements.

Frequently Asked Questions (FAQ)

Q: Can I use a 6.3 V rated capacitor in place of the 4 V original part?

A: Yes. A 6.3 V rated capacitor is electrically compatible in applications requiring 4 V operation. The higher voltage rating provides additional design margin and does not affect circuit functionality.

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

A: Tolerance specifies the allowable deviation of actual capacitance from the nominal 22 µF value. ±20% tolerance allows deviation from 17.6 µF to 26.4 µF. ±10% tolerance allows deviation from 19.8 µF to 24.2 µF. Applications requiring tighter capacitance control should select ±10% tolerance parts.

Q: Are all substitute parts physically identical to the original?

A: All substitute parts use the identical 1411 (3528 Metric) package and surface mount configuration. Physical dimensions (0.138" L x 0.110" W x 0.083" H maximum) are consistent across all listed parts, ensuring direct board-level compatibility.

Q: What does ESR 600 mOhm mean?

A: Equivalent Series Resistance (ESR) is the internal resistance of the capacitor at operating frequency. All listed parts maintain 600 mOhm ESR, ensuring identical electrical performance characteristics in circuit applications.

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

A: Obsolete status indicates the manufacturer has discontinued production. Active substitute parts from Vishay Sprague and KEMET provide equivalent functionality with improved long-term availability.

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

A: Yes. All substitute parts maintain identical capacitance, ESR, package, and operating temperature specifications. Mixing parts from different manufacturers or with different voltage ratings is electrically compatible.

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

A: MSL 1 indicates unlimited shelf life without moisture exposure precautions. All listed parts carry MSL 1 rating, requiring no special moisture control during storage or handling.

Q: Which substitute offers the best compliance status?

A: Vishay Sprague 593D and TR3 series parts, along with KEMET T495B226K016ATE600, carry ROHS3 Compliant status. These parts are suitable for applications subject to RoHS regulations.

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