TE Connectivity 1879062-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1879062-3 is a 15 µF molded tantalum capacitor rated at 6.3 V in a 1206 (3216 Metric) surface mount package. This component operates across a temperature range of -55°C to 125°C with an equivalent series resistance (ESR) of 2 Ohm and ±10% capacitance tolerance. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design requirements and procurement needs.

Key Parameters

Parameter	Value
Capacitance	15 µF
Voltage Rating	6.3 V
Tolerance	±10%
Type	Molded Tantalum
ESR (Equivalent Series Resistance)	2 Ohm
Package / Case	1206 (3216 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

Substitute parts for the 1879062-3 are classified into three categories based on electrical and mechanical compatibility:

Direct Substitutes (Equivalent Rating): Parts with identical capacitance (15 µF), voltage rating (6.3 V), tolerance (±10%), ESR (2 Ohm), package (1206), and operating temperature range (-55°C to 125°C). These components are functionally interchangeable with the original part.

Upgrade Substitutes (Higher Voltage Rating): Parts with identical capacitance (15 µF), tolerance (±10%), ESR (2 Ohm), package (1206), and operating temperature range, but with elevated voltage ratings (10 V or 16 V). These provide enhanced voltage margin and are suitable for applications where the original 6.3 V rating is marginal.

Similar Substitutes (Minor Parameter Variance): Parts with matching capacitance, voltage, tolerance, package, and temperature range, but with ESR values that deviate from the 2 Ohm specification. These components maintain electrical functionality within the application's tolerance band.

Key Parameters for Substitution Determination:

Capacitance: 15 µF (mandatory match)
Voltage Rating: 6.3 V minimum (upgrades to 10 V or 16 V acceptable)
Tolerance: ±10% (mandatory match)
Package: 1206 (3216 Metric) (mandatory match)
Mounting Type: Surface Mount (mandatory match)
Operating Temperature: -55°C to 125°C (mandatory match)
Type: Molded Tantalum (mandatory match)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	Type	ESR	Package	Operating Temp	MSL	Product Status	RoHS Status
1879062-3	TE Connectivity	15 µF	6.3 V	±10%	Molded	2 Ohm	1206	-55°C to 125°C	1	Obsolete	REACH Unaffected
593D156X96R3A2TE3	Vishay Sprague	15 µF	6.3 V	±10%	Molded	2 Ohm	1206	-55°C to 125°C	1	Active	ROHS3 Compliant
T494A156K006AH	KEMET	15 µF	6.3 V	±10%	Molded	2 Ohm	1206	-55°C to 125°C	1	Active	RoHS non-compliant
T494A156K006AT	KEMET	15 µF	6.3 V	±10%	Molded	2 Ohm	1206	-55°C to 125°C	1	Active	ROHS3 Compliant
TR3A156K6R3C2000	Vishay Sprague	15 µF	6.3 V	±10%	Molded	2 Ohm	1206	-55°C to 125°C	1	Active	ROHS3 Compliant
293D156X96R3A2TE3	Vishay Sprague	15 µF	6.3 V	±10%	Molded	2.9 Ohm	1206	-55°C to 125°C	1	Active	ROHS3 Compliant
TAJA156K006RNJ	KYOCERA AVX	15 µF	6.3 V	±10%	Molded	3.5 Ohm	1206	-55°C to 125°C	1	Active	ROHS3 Compliant
593D156X9010A2TE3	Vishay Sprague	15 µF	10 V	±10%	Molded	2 Ohm	1206	-55°C to 125°C	1	Active	ROHS3 Compliant
TAJS156K010RNJ	KYOCERA AVX	15 µF	10 V	±10%	Molded	2 Ohm @ 100kHz	1206	-55°C to 125°C	1	Active	ROHS3 Compliant
TR3A156K010C2000	Vishay Sprague	15 µF	10 V	±10%	Molded	2 Ohm	1206	-55°C to 125°C	1	Active	ROHS3 Compliant
F951C156KSAAQ2	KYOCERA AVX	15 µF	16 V	±10%	Conformal Coated	2 Ohm	1206	-55°C to 125°C	3	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Substitutes (6.3 V Rating):

The following parts provide direct electrical and mechanical equivalence to the 1879062-3:

593D156X96R3A2TE3 (Vishay Sprague): Active product with ROHS3 compliance. Identical electrical specifications and 2 Ohm ESR. Recommended for applications requiring RoHS certification.
T494A156K006AT (KEMET): Active product with ROHS3 compliance. Rated for 2000 hours at 125°C. Highest inventory availability (4909 pcs). Recommended for high-reliability applications.
T494A156K006AH (KEMET): Active product without RoHS compliance. Rated for 2000 hours at 125°C. Suitable for legacy systems not requiring RoHS certification.
TR3A156K6R3C2000 (Vishay Sprague): Active product with ROHS3 compliance. Identical electrical specifications. Recommended for applications requiring Vishay Sprague sourcing.

Similar Substitutes (6.3 V Rating with ESR Variance):

293D156X96R3A2TE3 (Vishay Sprague): Active product with ROHS3 compliance. ESR of 2.9 Ohm (0.9 Ohm higher than original). Suitable where ESR tolerance permits. Highest inventory (3106 pcs).
TAJA156K006RNJ (KYOCERA AVX): Active product with ROHS3 compliance. ESR of 3.5 Ohm (1.5 Ohm higher than original). Suitable where ESR tolerance permits. Highest inventory (4839 pcs).

Upgrade Substitutes (10 V Rating):

593D156X9010A2TE3 (Vishay Sprague): Active product with ROHS3 compliance. 10 V rating provides 58% voltage margin over original 6.3 V specification. Identical 2 Ohm ESR.
TAJS156K010RNJ (KYOCERA AVX): Active product with ROHS3 compliance. 10 V rating with 2 Ohm ESR at 100 kHz. Reduced height (1.20 mm seated vs. 1.80 mm original).
TR3A156K010C2000 (Vishay Sprague): Active product with ROHS3 compliance. 10 V rating with identical 2 Ohm ESR and 1.80 mm seated height.

Upgrade Substitute (16 V Rating):

F951C156KSAAQ2 (KYOCERA AVX): Active product with ROHS3 compliance. 16 V rating provides 154% voltage margin. Conformal coated type with MSL 3 (168 hours). Reduced height (1.60 mm seated). Suitable for applications requiring maximum voltage headroom.

Frequently Asked Questions (FAQ)

Q: Can I use a 10 V rated capacitor in place of the original 6.3 V part?

A: Yes. The 10 V rated substitutes (593D156X9010A2TE3, TAJS156K010RNJ, TR3A156K010C2000) are electrically compatible. The higher voltage rating provides additional safety margin and does not degrade performance in 6.3 V applications. All other electrical parameters (capacitance, tolerance, ESR, temperature range) remain identical.

Q: What is the significance of ESR differences between substitute parts?

A: ESR (Equivalent Series Resistance) affects ripple current handling and heat dissipation. The original part specifies 2 Ohm ESR. Substitutes with 2.9 Ohm (293D156X96R3A2TE3) or 3.5 Ohm (TAJA156K006RNJ) ESR values are acceptable where application ripple current requirements do not exceed the substitute part's rated specifications. Verify ripple current limits in the respective manufacturer datasheets.

Q: Are all substitute parts RoHS compliant?

A: Most active substitutes are ROHS3 compliant. The exception is T494A156K006AH (KEMET), which is RoHS non-compliant. For applications requiring RoHS certification, select from ROHS3 compliant alternatives: 593D156X96R3A2TE3, T494A156K006AT, TR3A156K6R3C2000, 293D156X96R3A2TE3, TAJA156K006RNJ, 593D156X9010A2TE3, TAJS156K010RNJ, TR3A156K010C2000, or F951C156KSAAQ2.

Q: Does package size differ between substitutes?

A: All direct and upgrade substitutes maintain the 1206 (3216 Metric) package specification. Physical dimensions are 0.126" L × 0.063" W (3.20 mm × 1.60 mm). Seated height varies: most parts are 0.071" (1.80 mm), except TAJS156K010RNJ at 0.047" (1.20 mm) and F951C156KSAAQ2 at 0.063" (1.60 mm). Verify PCB layout clearance for height-sensitive applications.

Q: What is the difference between molded and conformal coated tantalum capacitors?

A: The original 1879062-3 and most substitutes are molded type. The F951C156KSAAQ2 is conformal coated type, which provides enhanced moisture protection. Conformal coated parts have higher MSL (3 vs. 1), requiring different handling procedures. Select conformal coated only if application environment demands enhanced moisture resistance.

Q: Which substitute offers the best inventory availability?

A: T494A156K006AT (KEMET) offers the highest inventory with 4909 pcs in stock. TAJA156K006RNJ (KYOCERA AVX) provides 4839 pcs. Both are direct 6.3 V equivalents with identical electrical specifications.

Q: Can I substitute the original part with a conformal coated version?

A: Yes, F951C156KSAAQ2 is electrically compatible. However, note the following differences: 16 V rating (vs. 6.3 V), conformal coated type (vs. molded), MSL 3 (vs. MSL 1), and reduced seated height (1.60 mm vs. 1.80 mm). Conformal coated parts require different storage and handling procedures per IPC standards.

Q: Are there any lifetime or reliability ratings specified for these parts?

A: KEMET T494 series parts (T494A156K006AH and T494A156K006AT) specify 2000 hours lifetime at 125°C. Other manufacturers do not provide explicit lifetime specifications in the provided data. Consult individual manufacturer datasheets for detailed reliability and failure rate information.

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