Equivalent & Substitute Parts for 1879057-5

Part Overview

The TE Connectivity 1879057-5 is a 68 µF molded tantalum capacitor rated at 16 V with a 2917 (7343 Metric) package footprint. This component operates across a temperature range of -55°C to 125°C and features 900 mOhm equivalent series resistance (ESR). The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value
Capacitance	68 µF
Voltage Rating	16 V
Tolerance	±10%
Type	Molded Tantalum
ESR (Equivalent Series Resistance)	900 mOhm
Package / Case	2917 (7343 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 1879057-5 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Direct Substitution:

Capacitance: 68 µF (exact match required)
Voltage Rating: 16 V minimum (equal or higher voltage rating acceptable)
Tolerance: ±10% (exact match required)
Package / Case: 2917 (7343 Metric) (exact match required)
Mounting Type: Surface Mount (exact match required)
Operating Temperature Range: -55°C to 125°C minimum (equal or extended range acceptable)
Moisture Sensitivity Level: 1 (Unlimited) preferred for compatibility

Secondary Parameters Affecting Selection:

ESR (Equivalent Series Resistance): 900 mOhm baseline; lower ESR values provide improved performance characteristics
Type: Molded or Conformal Coated tantalum acceptable within package constraints
Product Status: Active status preferred for long-term availability

Substitute parts are grouped into three categories: Direct Equivalents (matching all critical parameters), Upgraded Variants (higher voltage rating or extended temperature range), and Similar Alternatives (different ESR or coating type within compatible package).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Type	ESR (mOhm)	Package	Temp Range	Status	MSL
1879057-5	TE Connectivity	68 µF	16 V	±10%	Molded	900	2917	-55 to 125°C	Obsolete	1
TAJD686K016RNJ	KYOCERA AVX	68 µF	16 V	±10%	Molded	900	2917	-55 to 125°C	Active	1
TAJY686K016RNJ	KYOCERA AVX	68 µF	16 V	±10%	Molded	900	2917	-55 to 125°C	Active	1
TAJY686K020RNJ	KYOCERA AVX	68 µF	20 V	±10%	Molded	900	2917	-55 to 125°C	Active	1
THJD686K016RJN	KYOCERA AVX	68 µF	16 V	±10%	Molded	900	2917	-55 to 175°C	Active	1
293D686X9016D2TE3	Vishay Sprague	68 µF	16 V	±10%	Molded	600	2917	-55 to 125°C	Active	1
293D686X9016E2TE3	Vishay Sprague	68 µF	16 V	±10%	Molded	800	2917	-55 to 125°C	Active	1
592D686X9016D2T20H	Vishay Sprague	68 µF	16 V	±10%	Conformal Coated	170	2917	-55 to 125°C	Active	2A
593D686X9016D2TE3	Vishay Sprague	68 µF	16 V	±10%	Molded	150	2917	-55 to 125°C	Active	1
593D686X9016E2TE3	Vishay Sprague	68 µF	16 V	±10%	Molded	—	2917	-55 to 125°C	Active	1
594D686X9016D2T	Vishay Sprague	68 µF	16 V	±10%	Conformal Coated	95	2917	-55 to 125°C	Active	2A

Engineering Selection Recommendations

Direct Equivalents (Recommended Primary Choices):

TAJD686K016RNJ and TAJY686K016RNJ from KYOCERA AVX are direct electrical and mechanical equivalents to the 1879057-5. Both components maintain identical capacitance (68 µF), voltage rating (16 V), tolerance (±10%), ESR (900 mOhm), package (2917), and operating temperature range (-55°C to 125°C). Both are active products with RoHS3 compliance and MSL 1 rating. TAJY686K016RNJ offers reduced seated height (2.00 mm versus 3.10 mm), which may provide advantages in space-constrained applications.

Upgraded Voltage Option:

TAJY686K020RNJ from KYOCERA AVX provides identical electrical characteristics to the direct equivalents with the exception of a higher voltage rating (20 V versus 16 V). This component is suitable for applications requiring additional voltage margin and operates within the same temperature range and package constraints.

Extended Temperature Range Option:

THJD686K016RJN from KYOCERA AVX maintains all electrical parameters of the original part while extending the operating temperature range to -55°C to 175°C. This component carries AEC-Q200 automotive qualification and is designated for automotive applications. Selection of this part is appropriate when extended thermal performance is required.

Lower ESR Alternatives:

Vishay Sprague components 593D686X9016D2TE3 (150 mOhm), 293D686X9016D2TE3 (600 mOhm), and 293D686X9016E2TE3 (800 mOhm) provide molded tantalum construction with reduced ESR values compared to the original 900 mOhm specification. These components are electrically compatible and maintain the 2917 package footprint. Lower ESR characteristics result in reduced heat generation and improved high-frequency performance.

Conformal Coated Options:

Vishay Sprague components 592D686X9016D2T20H (170 mOhm) and 594D686X9016D2T (95 mOhm) feature conformal coating for enhanced environmental protection. These parts carry MSL 2A rating (4 weeks) and feature significantly reduced ESR values. Conformal coating provides superior moisture and contamination resistance for harsh operating environments.

Frequently Asked Questions (FAQ)

Q: Can TAJY686K020RNJ be used as a direct replacement for 1879057-5?

A: Yes. TAJY686K020RNJ is electrically and mechanically compatible. The 20 V rating exceeds the 16 V requirement and provides additional voltage margin. All other parameters—capacitance, tolerance, package, temperature range, and ESR—match the original specification.

Q: What is the difference between TAJD686K016RNJ and TAJY686K016RNJ?

A: Both components are electrically identical with 68 µF capacitance, 16 V rating, and 900 mOhm ESR. The primary difference is seated height: TAJD686K016RNJ measures 3.10 mm maximum height, while TAJY686K016RNJ measures 2.00 mm maximum height. TAJY686K016RNJ is preferred for applications with height constraints.

Q: Are Vishay Sprague components with lower ESR values compatible with the original circuit design?

A: Lower ESR values are electrically compatible and provide improved performance characteristics. Components such as 593D686X9016D2TE3 (150 mOhm) and 594D686X9016D2T (95 mOhm) reduce heat dissipation and improve transient response. No circuit modifications are required for substitution.

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

A: The original 1879057-5 and most substitute parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Conformal coated variants (592D686X9016D2T20H and 594D686X9016D2T) carry MSL 2A (4 weeks), requiring controlled storage and handling procedures. MSL 2A components must be baked before reflow soldering if storage exceeds the specified period.

Q: Is THJD686K016RJN suitable for non-automotive applications?

A: Yes. THJD686K016RJN is qualified for automotive use (AEC-Q200) but is not restricted to automotive applications. The extended temperature range (-55°C to 175°C) and identical electrical specifications make this component suitable for any application requiring enhanced thermal performance.

Q: What packaging options are available for these substitute parts?

A: TAJD686K016RNJ is supplied in Cut Tape (CT) and Digi-Reel® packaging. TAJY686K016RNJ, TAJY686K020RNJ, THJD686K016RJN, and all Vishay Sprague components are supplied in Tape & Reel (TR) format. Packaging selection depends on production volume and assembly equipment compatibility.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All active substitute parts listed carry RoHS3 compliance certification. The original 1879057-5 is classified as REACH Unaffected, and all substitute components maintain this status.

Q: Can conformal coated parts (592D686X9016D2T20H, 594D686X9016D2T) be used in standard PCB assembly processes?

A: Yes. Conformal coated tantalum capacitors are compatible with standard surface mount assembly processes. The conformal coating is applied after component manufacturing and does not affect solderability or assembly procedures. The MSL 2A rating requires adherence to moisture control protocols during storage and handling.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message