TE Connectivity 4-1879063-0 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 4-1879063-0 is a 10 µF molded tantalum capacitor rated at 20 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. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for ongoing production, maintenance, and design continuity. Substitute parts maintain identical electrical and mechanical specifications, while upgrade options provide improved tolerance characteristics.

Key Parameters

Parameter	Value
Capacitance	10 µF
Voltage Rating	20 V
Tolerance	±20%
Type	Molded Tantalum
ESR (Equivalent Series Resistance)	1 Ohm
Operating Temperature Range	-55°C to 125°C
Mounting Type	Surface Mount
Package / Case	1411 (3528 Metric)
Physical Dimensions	0.138" L x 0.110" W (3.50mm x 2.80mm)
Height - Seated (Max)	0.083" (2.10mm)
Manufacturer Size Code	B
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS Code	8532.21.0050

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 4-1879063-0 is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

Capacitance: 10 µF (exact match required)
Voltage Rating: 20 V (exact match required)
Tolerance: ±20% (for direct substitutes)
Type: Molded Tantalum (exact match required)
ESR: 1 Ohm (exact match required)
Operating Temperature Range: -55°C to 125°C (exact match required)
Package / Case: 1411 (3528 Metric) (exact match required)
Physical Dimensions: 0.138" L x 0.110" W (3.50mm x 2.80mm) (exact match required)
Mounting Type: Surface Mount (exact match required)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Direct Substitutes maintain all parameters identical to the original part, including ±20% tolerance. These parts are sourced from active manufacturers and provide pin-for-pin, form-fit-function compatibility.

Upgrade Options improve upon the original specification by reducing tolerance from ±20% to ±10%, while maintaining all other electrical and mechanical parameters. These upgrades provide enhanced capacitance accuracy for applications requiring tighter tolerances.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Tolerance	Voltage	ESR	Temp Range	Package	Height (Max)	Product Status	RoHS Status	Inventory
4-1879063-0	TE Connectivity	TYTR	10 µF	±20%	20 V	1 Ohm	-55°C to 125°C	1411 (3528)	0.083" (2.10mm)	Obsolete	N/A	1019 Pcs
593D106X0020B2TE3	Vishay Sprague	TANTAMOUNT™ 593D	10 µF	±20%	20 V	1 Ohm	-55°C to 125°C	1411 (3528)	0.083" (2.11mm)	Active	ROHS3 Compliant	664 Pcs
T494B106M020AT	KEMET	T494	10 µF	±20%	20 V	1 Ohm	-55°C to 125°C	1411 (3528)	0.083" (2.10mm)	Active	ROHS3 Compliant	8510 Pcs
TR3B106M020C1000	Vishay Sprague	TANTAMOUNT™ TR3	10 µF	±20%	20 V	1 Ohm	-55°C to 125°C	1411 (3528)	0.083" (2.11mm)	Active	ROHS3 Compliant	1059 Pcs
593D106X9020B2TE3	Vishay Sprague	TANTAMOUNT™ 593D	10 µF	±10%	20 V	1 Ohm	-55°C to 125°C	1411 (3528)	0.083" (2.11mm)	Active	ROHS3 Compliant	3035 Pcs
T494B106K020AT	KEMET	T494	10 µF	±10%	20 V	1 Ohm	-55°C to 125°C	1411 (3528)	0.083" (2.10mm)	Active	ROHS3 Compliant	9457 Pcs
T495B106K020ATE1K0	KEMET	T495	10 µF	±10%	20 V	1 Ohm	-55°C to 125°C	1411 (3528)	0.083" (2.10mm)	Active	ROHS3 Compliant	18520 Pcs
TR3B106K020C1000	Vishay Sprague	TANTAMOUNT™ TR3	10 µF	±10%	20 V	1 Ohm	-55°C to 125°C	1411 (3528)	0.083" (2.11mm)	Active	ROHS3 Compliant	2424 Pcs

Engineering Selection Recommendations

Direct Substitutes (±20% Tolerance):

The following parts provide direct functional equivalence to the TE Connectivity 4-1879063-0:

T494B106M020AT (KEMET): Active product status with ROHS3 compliance. Highest inventory availability (8510 Pcs) among direct substitutes. Rated for 2000 hours at 125°C. Identical physical dimensions and electrical specifications.
593D106X0020B2TE3 (Vishay Sprague): Active product status with ROHS3 compliance. TANTAMOUNT™ series designation. Rated for general purpose applications with unlimited moisture sensitivity level.
TR3B106M020C1000 (Vishay Sprague): Active product status with ROHS3 compliance. TANTAMOUNT™ TR3 series. Suitable for direct replacement in existing designs.

Upgrade Options (±10% Tolerance):

The following parts provide improved tolerance specifications while maintaining all other electrical and mechanical parameters:

T495B106K020ATE1K0 (KEMET): Highest inventory availability (18520 Pcs) among all substitute options. Active product status with ROHS3 compliance. Rated for 2000 hours at 85°C. Recommended for applications requiring enhanced capacitance accuracy.
T494B106K020AT (KEMET): Active product status with ROHS3 compliance. Rated for 2000 hours at 125°C. High inventory availability (9457 Pcs).
593D106X9020B2TE3 (Vishay Sprague): Active product status with ROHS3 compliance. TANTAMOUNT™ series. Inventory availability of 3035 Pcs.
TR3B106K020C1000 (Vishay Sprague): Active product status with ROHS3 compliance. TANTAMOUNT™ TR3 series. Inventory availability of 2424 Pcs.

All substitute and upgrade parts maintain REACH Unaffected status and EAR99 ECCN classification, consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can I use a ±10% tolerance part as a substitute for the ±20% tolerance original?

A: Yes. The ±10% tolerance parts listed as upgrades are fully compatible replacements. They provide superior capacitance accuracy while maintaining identical electrical and mechanical specifications. This represents an improvement over the original specification.

Q: Are all substitute parts RoHS compliant?

A: All active substitute and upgrade parts listed are ROHS3 compliant. The original TE Connectivity part does not specify RoHS status.

Q: What is the difference between direct substitutes and upgrade options?

A: Direct substitutes maintain the original ±20% tolerance specification. Upgrade options reduce tolerance to ±10%, providing tighter capacitance accuracy. All other parameters remain identical.

Q: Do the substitute parts fit the same PCB footprint?

A: Yes. All substitute parts use the identical 1411 (3528 Metric) package with matching physical dimensions of 0.138" L x 0.110" W (3.50mm x 2.80mm). Maximum seated height is 0.083" (2.10mm to 2.11mm), which is within acceptable PCB assembly tolerances.

Q: Which substitute offers the best inventory availability?

A: T495B106K020ATE1K0 (KEMET) offers the highest inventory with 18520 Pcs in stock. This part is an upgrade option with ±10% tolerance.

Q: Are there any differences in operating temperature range among the substitutes?

A: All substitute and upgrade parts maintain the identical operating temperature range of -55°C to 125°C.

Q: What is the ESR specification, and is it consistent across all parts?

A: Equivalent Series Resistance (ESR) is specified at 1 Ohm for all parts listed. This parameter is identical across the original and all substitute options.

Q: Can I mix different substitute manufacturers in the same design?

A: Yes. All substitute parts meet identical electrical and mechanical specifications. However, design documentation should reflect the specific part number used for traceability and future procurement.

Q: What does MSL 1 (Unlimited) mean?

A: Moisture Sensitivity Level 1 indicates the component has unlimited shelf life and does not require special moisture control during storage or handling. All parts listed maintain this specification.

Q: Are there any lifetime or reliability differences between manufacturers?

A: KEMET parts specify 2000 hours lifetime at 125°C (T494 series) or 2000 hours at 85°C (T495 series). Vishay Sprague parts do not specify lifetime in the provided data. Both manufacturers' parts are active products with ROHS3 compliance.

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