TE Connectivity 4-1879062-0 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 4-1879062-0 is a 4.7 µF molded tantalum capacitor rated at 16 V with ±20% tolerance in a 1206 (3216 Metric) surface mount package. This component is classified as obsolete product status. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications. Substitute parts must maintain electrical compatibility across capacitance, voltage rating, tolerance, and physical dimensions while meeting current manufacturing and compliance standards.

Key Parameters

Parameter	Value
Capacitance	4.7 µF
Voltage Rating	16 V
Tolerance	±20%
Type	Molded Tantalum
Package / Case	1206 (3216 Metric)
Mounting Type	Surface Mount
ESR (Equivalent Series Resistance)	3 Ohm
Operating Temperature Range	-55°C ~ 125°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 4-1879062-0 are grouped based on strict electrical and mechanical compatibility criteria. The primary substitution logic is determined by the following parameters:

Critical Parameters for Substitution:

Capacitance: 4.7 µF (exact match required)
Voltage Rating: 16 V minimum (equal or higher voltage ratings are acceptable)
Package / Case: 1206 (3216 Metric) (exact match required)
Mounting Type: Surface Mount (exact match required)
Type: Molded Tantalum (exact match required)
Operating Temperature Range: -55°C ~ 125°C minimum (equal or extended range acceptable)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Secondary Parameters:

Tolerance: ±20% (exact match) or ±10% (tighter tolerance acceptable as upgrade)
ESR: 3 Ohm nominal (minor variations within 3.0–3.1 Ohm acceptable)

Substitute parts are classified as direct equivalents when all critical parameters match exactly. Upgrade substitutes are parts that maintain all critical parameters while offering improved specifications such as tighter tolerance, higher voltage rating, or lower ESR.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	ESR	Package	Operating Temp.	Product Status	RoHS Status
4-1879062-0	TE Connectivity	4.7 µF	16 V	±20%	3 Ohm	1206	-55°C ~ 125°C	Obsolete	REACH Unaffected
T494A475M016AT	KEMET	4.7 µF	16 V	±20%	3 Ohm	1206	-55°C ~ 125°C	Active	ROHS3 Compliant
TH3A475M016C2900	Vishay Sprague	4.7 µF	16 V	±20%	2.9 Ohm	1206	-55°C ~ 150°C	Active	ROHS3 Compliant
T494A475K016AT	KEMET	4.7 µF	16 V	±10%	3 Ohm	1206	-55°C ~ 125°C	Active	ROHS3 Compliant
TAJK475K016RNJ	KYOCERA AVX	4.7 µF	16 V	±10%	3.1 Ohm	1206	-55°C ~ 125°C	Active	ROHS3 Compliant
TH3A475K016C2900	Vishay Sprague	4.7 µF	16 V	±10%	2.9 Ohm	1206	-55°C ~ 150°C	Active	ROHS3 Compliant
T494A475M025AT	KEMET	4.7 µF	25 V	±20%	3 Ohm	1206	-55°C ~ 125°C	Active	ROHS3 Compliant
TAJA475M025RNJ	KYOCERA AVX	4.7 µF	25 V	±20%	3.1 Ohm	1206	-55°C ~ 125°C	Active	ROHS3 Compliant
TAJA475K025RNJ	KYOCERA AVX	4.7 µF	25 V	±10%	3.1 Ohm	1206	-55°C ~ 125°C	Active	ROHS3 Compliant
F931D475KAA	KYOCERA AVX	4.7 µF	20 V	±10%	3 Ohm @ 100kHz	1206	-55°C ~ 125°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Same Specifications):

The KEMET T494A475M016AT is the primary direct equivalent to the TE Connectivity 4-1879062-0. Both parts share identical electrical specifications: 4.7 µF capacitance, 16 V voltage rating, ±20% tolerance, 3 Ohm ESR, and 1206 package. The T494A475M016AT is in active product status with ROHS3 compliance and 2000 hours lifetime rating at 125°C, providing superior availability and manufacturing support compared to the obsolete original part.

The Vishay Sprague TH3A475M016C2900 is an alternative direct equivalent with identical electrical parameters. This part offers an extended operating temperature range (-55°C ~ 150°C) and slightly lower ESR (2.9 Ohm). The TH3A475M016C2900 carries AEC-Q200 automotive qualification and ROHS3 compliance.

Upgrade Substitutes (Improved Specifications):

Upgrade substitutes maintain all critical parameters while offering enhanced performance characteristics:

KEMET T494A475K016AT: Tighter tolerance (±10% versus ±20%), same voltage and capacitance, active status with ROHS3 compliance.
KYOCERA AVX TAJK475K016RNJ: Tighter tolerance (±10%), slightly higher ESR (3.1 Ohm), active status with ROHS3 compliance.
Vishay Sprague TH3A475K016C2900: Tighter tolerance (±10%), lower ESR (2.9 Ohm), extended temperature range (-55°C ~ 150°C), AEC-Q200 automotive rated, ROHS3 compliant.

Higher Voltage Upgrade Substitutes:

For applications requiring higher voltage margin:

KEMET T494A475M025AT: 25 V rating (versus 16 V), maintains ±20% tolerance and 3 Ohm ESR, active status with ROHS3 compliance.
KYOCERA AVX TAJA475M025RNJ: 25 V rating, ±20% tolerance, 3.1 Ohm ESR, active status with ROHS3 compliance.
KYOCERA AVX TAJA475K025RNJ: 25 V rating with tighter ±10% tolerance, 3.1 Ohm ESR, active status with ROHS3 compliance.
KYOCERA AVX F931D475KAA: 20 V rating with ±10% tolerance, 3 Ohm ESR at 100 kHz, active status with ROHS3 compliance and 2000 hours lifetime at 125°C.

All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity classification and REACH unaffected status. Selection should be based on specific application requirements regarding tolerance, voltage margin, temperature range, and automotive qualification needs.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher voltage rating than the original 4-1879062-0?

A: Yes. Parts with higher voltage ratings (20 V, 25 V) are electrically compatible substitutes. Higher voltage ratings provide additional safety margin in the circuit. The capacitance, tolerance, package, and mounting type remain the same, ensuring mechanical and electrical compatibility.

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

A: Tolerance specifies the allowable deviation from the nominal capacitance value. The ±20% original part allows capacitance between 3.76 µF and 5.64 µF. The ±10% upgrade substitutes allow capacitance between 4.23 µF and 5.17 µF, providing tighter capacitance control. Applications requiring precise capacitance values benefit from ±10% tolerance parts.

Q: Are all substitute parts in active production status?

A: Yes. All listed substitute parts are in active product status, ensuring continued availability and manufacturing support. The original TE Connectivity 4-1879062-0 is obsolete, making active substitutes necessary for new production and repair applications.

Q: Do substitute parts meet RoHS compliance requirements?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. The original part's REACH unaffected status is maintained across all substitutes.

Q: Can I use parts with different ESR values as substitutes?

A: ESR (Equivalent Series Resistance) values between 2.9 Ohm and 3.1 Ohm are acceptable substitutes for the original 3 Ohm specification. These minor variations do not affect circuit performance in general-purpose applications. Applications with specific ESR requirements should select parts matching the exact ESR value.

Q: What is the significance of the 1206 (3216 Metric) package designation?

A: The 1206 package is a standardized surface mount component size measuring 0.126" L × 0.063" W (3.20 mm × 1.60 mm). All substitute parts use this identical package, ensuring direct mechanical compatibility with existing PCB layouts and assembly equipment. Package compatibility is mandatory for substitution.

Q: Are Vishay Sprague TH3 series parts suitable for automotive applications?

A: Yes. The Vishay Sprague TH3A475M016C2900 and TH3A475K016C2900 carry AEC-Q200 automotive qualification, indicating compliance with automotive reliability and quality standards. These parts are suitable for automotive and high-reliability applications requiring extended temperature operation (-55°C ~ 150°C).

Q: What is the difference between KEMET T494 series and KYOCERA AVX TAJ series substitutes?

A: Both series are active, ROHS3 compliant molded tantalum capacitors in 1206 packages with identical electrical specifications. The primary differences are manufacturer, ESR values (KEMET: 3 Ohm, KYOCERA AVX: 3.1 Ohm), and packaging options (Tape & Reel versus Cut Tape & Digi-Reel). Selection depends on supply chain preferences and packaging requirements.

Q: Can I substitute the original part with a higher capacitance value?

A: No. Capacitance must remain at 4.7 µF for electrical compatibility. Higher capacitance values alter circuit performance and are not acceptable substitutes. Only parts with identical 4.7 µF capacitance are listed as substitutes.

Q: What does MSL 1 (Unlimited) moisture sensitivity mean?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All substitute parts maintain MSL 1 classification, eliminating moisture-related handling requirements and simplifying inventory management.

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