Equivalent & Substitute Parts for 2-1879062-7

Part Overview

The TE Connectivity 2-1879062-7 is a 6.8 µF molded tantalum capacitor rated at 10 V with 1206 (3216 Metric) surface mount packaging. 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 and features a 3 Ohm equivalent series resistance (ESR) with ±10% capacitance tolerance. Active alternatives from manufacturers including Vishay Sprague, KEMET, and KYOCERA AVX provide direct functional equivalence or upgraded performance characteristics.

Key Parameters

Parameter	Value	Significance for Substitution
Capacitance	6.8 µF	Must match exactly for circuit function
Voltage Rating	10 V	Minimum required; higher ratings acceptable as upgrades
Tolerance	±10%	Must match or be tighter for specification compliance
Package / Case	1206 (3216 Metric)	Must match for PCB layout compatibility
Type	Molded Tantalum	Defines technology and performance characteristics
ESR (Equivalent Series Resistance)	3 Ohm	Affects circuit performance; higher values acceptable with circuit validation
Operating Temperature Range	-55°C to 125°C	Must meet or exceed application requirements
Mounting Type	Surface Mount	Must match for assembly compatibility
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Defines handling and storage requirements

Substitute Part Grouping Explanation

Substitute parts are classified into three categories based on electrical and mechanical parameter alignment with the main part 2-1879062-7:

Direct Substitutes (Equivalent Parameters): Parts with identical capacitance (6.8 µF), voltage rating (10 V), tolerance (±10%), package (1206), ESR (3 Ohm), and operating temperature range (-55°C to 125°C). These parts are interchangeable without circuit modification. Direct substitutes include 593D685X9010A2TE3, T494A685K010AT, and TR3A685K010C3000.

Similar Substitutes (Minor Parameter Variance): Parts matching all critical parameters except ESR, which ranges from 4.0 to 4.2 Ohm compared to the original 3 Ohm specification. These parts maintain functional equivalence for general-purpose applications where ESR tolerance is within acceptable circuit margins. Similar substitutes include 293D685X9010A2TE3, T491A685K010AT, TAJA685K010RNJ, TAJA685K010Y, and TAJS685K010RNJ.

Upgrade Substitutes (Higher Voltage Rating): Parts with identical capacitance (6.8 µF), tolerance (±10%), package (1206), and ESR (3 Ohm), but with elevated voltage rating (16 V instead of 10 V). These parts provide enhanced voltage margin and are suitable for applications requiring increased reliability headroom. Upgrade substitutes include 593D685X9016A2TE3 and TR3A685K016C3000.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	ESR (Ohm)	Package	Product Status	RoHS Status	Inventory (Pcs)
2-1879062-7	TE Connectivity	6.8 µF	10 V	±10%	3	1206	Obsolete	Not Specified	1134
593D685X9010A2TE3	Vishay Sprague	6.8 µF	10 V	±10%	3	1206	Active	ROHS3 Compliant	632
T494A685K010AT	KEMET	6.8 µF	10 V	±10%	3	1206	Active	ROHS3 Compliant	780
TR3A685K010C3000	Vishay Sprague	6.8 µF	10 V	±10%	3	1206	Active	ROHS3 Compliant	1059
593D685X9016A2TE3	Vishay Sprague	6.8 µF	16 V	±10%	3	1206	Active	ROHS3 Compliant	747
TR3A685K016C3000	Vishay Sprague	6.8 µF	16 V	±10%	3	1206	Active	ROHS3 Compliant	1150
293D685X9010A2TE3	Vishay Sprague	6.8 µF	10 V	±10%	4.2	1206	Active	ROHS3 Compliant	4083
T491A685K010AT	KEMET	6.8 µF	10 V	±10%	4	1206	Active	ROHS3 Compliant	6102
TAJA685K010RNJ	KYOCERA AVX	6.8 µF	10 V	±10%	4	1206	Active	ROHS3 Compliant	2400
TAJA685K010Y	KYOCERA AVX	6.8 µF	10 V	±10%	4	1206	Active	ROHS3 Compliant	1070
TAJS685K010RNJ	KYOCERA AVX	6.8 µF	10 V	±10%	4	1206	Active	ROHS3 Compliant	672

Engineering Selection Recommendations

For Direct Replacement (No Circuit Modification Required):

Select from direct substitute parts 593D685X9010A2TE3 (Vishay Sprague), T494A685K010AT (KEMET), or TR3A685K010C3000 (Vishay Sprague). All three parts maintain identical electrical specifications including 3 Ohm ESR and 10 V voltage rating. All are ROHS3 compliant and carry active product status. TR3A685K010C3000 offers the highest inventory availability at 1059 pieces. T494A685K010AT includes documented lifetime specification of 2000 hours at 125°C, providing additional reliability data for critical applications.

For Applications Tolerating Increased ESR:

Similar substitute parts T491A685K010AT (KEMET, 6102 pcs), 293D685X9010A2TE3 (Vishay Sprague, 4083 pcs), TAJA685K010RNJ (KYOCERA AVX, 2400 pcs), TAJA685K010Y (KYOCERA AVX, 1070 pcs), and TAJS685K010RNJ (KYOCERA AVX, 672 pcs) feature ESR values between 4.0 and 4.2 Ohm. These parts are suitable for general-purpose applications where the increased ESR does not compromise circuit performance. T491A685K010AT and 293D685X9010A2TE3 provide the largest inventory quantities.

For Enhanced Voltage Margin Applications:

Upgrade substitute parts 593D685X9016A2TE3 (Vishay Sprague, 747 pcs) and TR3A685K016C3000 (Vishay Sprague, 1150 pcs) provide 16 V rating with identical 3 Ohm ESR and 6.8 µF capacitance. These parts are suitable for designs requiring increased reliability margin or operation in elevated voltage environments. TR3A685K016C3000 offers superior inventory availability.

All recommended substitutes are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (Unlimited moisture sensitivity level). All parts maintain the 1206 (3216 Metric) package footprint and surface mount mounting type.

Frequently Asked Questions (FAQ)

Q: Can I use a 16 V rated capacitor in place of the original 10 V part?

A: Yes. The 16 V rated parts (593D685X9016A2TE3 and TR3A685K016C3000) are direct functional upgrades. Higher voltage ratings provide increased safety margin and are electrically compatible with 10 V circuit requirements. No circuit modification is required.

Q: What is the significance of ESR differences between 3 Ohm and 4 Ohm?

A: ESR (Equivalent Series Resistance) affects ripple current handling and voltage drop characteristics. The original part specifies 3 Ohm ESR. Similar substitutes with 4.0 to 4.2 Ohm ESR are acceptable for general-purpose applications but may exhibit slightly higher impedance at high frequencies. For noise-sensitive or high-ripple-current applications, direct substitutes with 3 Ohm ESR are preferred.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts listed are ROHS3 compliant. The original TE Connectivity part does not specify RoHS status due to its obsolete classification.

Q: Does package size differ between substitute parts?

A: All substitute parts maintain the 1206 (3216 Metric) package with identical footprint dimensions of 0.126" L × 0.063" W (3.20 mm × 1.60 mm). One exception exists: TAJS685K010RNJ features a reduced seated height of 0.047" (1.20 mm) compared to the standard 0.071" (1.80 mm) maximum height. Verify PCB clearance if height-constrained applications are present.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Tape & Reel (TR) packaging is standard for high-volume automated assembly and provides continuous component feed. Cut Tape (CT) and Digi-Reel packaging are suitable for lower-volume or manual assembly processes. Both packaging formats contain identical components; selection depends on assembly methodology and volume requirements.

Q: Which substitute offers the best inventory availability?

A: T491A685K010AT (KEMET) provides the highest inventory at 6102 pieces, followed by 293D685X9010A2TE3 (Vishay Sprague) at 4083 pieces. Both are similar substitutes with 4 Ohm ESR. For direct substitutes with 3 Ohm ESR, TR3A685K010C3000 (Vishay Sprague) offers 1059 pieces.

Q: Are all parts rated for -55°C to 125°C operation?

A: Yes. All substitute parts maintain the full -55°C to 125°C operating temperature range specified for the original part.

Q: What is MSL 1 (Unlimited) moisture sensitivity level?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. This classification applies to all parts in this substitution list.

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