Equivalent & Substitute Parts for 1-1879065-0

Part Overview

The TE Connectivity 1-1879065-0 is a 470 µF molded tantalum capacitor rated at 4 V with ±20% tolerance, housed in a 2917 (7343 Metric) surface mount package. This component operates across the temperature range of -55°C to 125°C and features an equivalent series resistance (ESR) of 150 mOhm. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives from active product lines to maintain design continuity and ensure supply chain availability.

Key Parameters

Parameter	Value
Capacitance	470 µF
Voltage Rating	4 V
Tolerance	±20%
Type	Molded Tantalum
ESR (Equivalent Series Resistance)	150 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

Substitute parts are classified into two categories based on electrical and mechanical compatibility with the main part 1-1879065-0:

Upgrade Substitutes feature increased voltage ratings (6.3 V) while maintaining identical capacitance (470 µF), tolerance (±20%), ESR (150 mOhm), package dimensions (2917/7343 Metric), and operating temperature range (-55°C to 125°C). These parts provide enhanced voltage margin and are sourced from active product lines. The key parameters enabling this substitution are: matching capacitance value, identical package footprint, compatible ESR characteristics, and equivalent thermal performance.

Similar Substitutes maintain the original 4 V voltage rating and 470 µF capacitance but vary in ESR values, coating type (molded versus conformal coated), and physical dimensions. These parts are selected based on matching the core electrical specifications (capacitance, voltage, tolerance) and package family (2917/7343 Metric) while accommodating variations in ESR performance and construction type. The critical parameters for similarity classification are: capacitance value, voltage rating, tolerance, package designation, and surface mount compatibility.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	Type	ESR	Package	Product Status	RoHS Status
1-1879065-0	TE Connectivity	470 µF	4 V	±20%	Molded	150 mOhm	2917 (7343)	Obsolete	Not Specified
T494D477M006AH	KEMET	470 µF	6.3 V	±20%	Molded	150 mOhm	2917 (7343)	Active	Non-compliant
T494D477M006AT	KEMET	470 µF	6.3 V	±20%	Molded	150 mOhm	2917 (7343)	Active	ROHS3 Compliant
TPSY477K006R0150	KYOCERA AVX	470 µF	6.3 V	±10%	Molded	150 mOhm	2917 (7343)	Active	ROHS3 Compliant
TR3D477M6R3C0150	Vishay Sprague	470 µF	6.3 V	±20%	Molded	150 mOhm	2917 (7343)	Active	ROHS3 Compliant
293D477X0004D2TE3	Vishay Sprague	470 µF	4 V	±20%	Molded	600 mOhm	2917 (7343)	Active	ROHS3 Compliant
293D477X0004E2TE3	Vishay Sprague	470 µF	4 V	±20%	Molded	500 mOhm	2917 (7343)	Active	ROHS3 Compliant
592D477X0004D2T14H	Vishay Sprague	470 µF	4 V	±20%	Conformal Coated	140 mOhm	2917 (7343)	Active	ROHS3 Compliant
592D477X0004D2T20H	Vishay Sprague	470 µF	4 V	±20%	Conformal Coated	100 mOhm	2917 (7343)	Active	ROHS3 Compliant
593D477X0004E2TE3	Vishay Sprague	470 µF	4 V	±20%	Molded	100 mOhm	2917 (7343)	Active	ROHS3 Compliant
597D477X0004V2T	Vishay Sprague	470 µF	4 V	±20%	Conformal Coated	30 mOhm	2917 (7343)	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Voltage-Compatible Replacement (4 V Rating):

Parts 293D477X0004D2TE3, 293D477X0004E2TE3, 592D477X0004D2T14H, 592D477X0004D2T20H, 593D477X0004E2TE3, and 597D477X0004V2T maintain the original 4 V voltage specification. All listed alternatives are active products with ROHS3 compliance, providing supply chain continuity. Selection among these options depends on ESR requirements and construction type (molded versus conformal coated). The conformal coated variants (592D and 597D series) offer enhanced environmental protection with MSL 2A rating.

For Voltage-Upgraded Replacement (6.3 V Rating):

Parts T494D477M006AH, T494D477M006AT, TPSY477K006R0150, and TR3D477M6R3C0150 provide increased voltage margin while maintaining 470 µF capacitance and 150 mOhm ESR. T494D477M006AT and TR3D477M6R3C0150 are ROHS3 compliant. TPSY477K006R0150 offers tighter tolerance (±10% versus ±20%), providing improved capacitance stability. These upgrades are suitable for applications where voltage derating or future design margin is required.

Compliance Considerations:

All substitute parts except T494D477M006AH carry ROHS3 compliance certification. The original part 1-1879065-0 does not specify RoHS status. For applications requiring RoHS3 compliance, T494D477M006AT, TPSY477K006R0150, TR3D477M6R3C0150, and all Vishay Sprague alternatives meet this requirement.

Frequently Asked Questions (FAQ)

Q: Can I use a 6.3 V rated capacitor as a direct replacement for the 4 V rated 1-1879065-0?

A: Yes. A higher voltage rating provides additional safety margin and is electrically compatible in circuits designed for 4 V operation. Parts T494D477M006AH, T494D477M006AT, TPSY477K006R0150, and TR3D477M6R3C0150 are functionally equivalent upgrades with identical capacitance (470 µF), tolerance (±20%), ESR (150 mOhm), and package dimensions (2917/7343 Metric).

Q: What is the significance of ESR variation among substitute parts?

A: Equivalent Series Resistance (ESR) affects ripple current handling, heat dissipation, and frequency response. The original part specifies 150 mOhm ESR. Substitute parts range from 30 mOhm to 600 mOhm. Lower ESR values (30-100 mOhm) improve performance in high-frequency or high-ripple-current applications. Higher ESR values (500-600 mOhm) are acceptable for general-purpose applications where ESR is not a critical constraint.

Q: Are conformal coated variants (592D and 597D series) interchangeable with molded types?

A: Conformal coated and molded tantalum capacitors are electrically equivalent when capacitance, voltage, tolerance, and ESR specifications match. The primary difference is environmental protection. Conformal coated variants (MSL 2A) provide enhanced moisture resistance compared to molded types (MSL 1). Physical dimensions may vary slightly; verify height and footprint compatibility with your PCB layout.

Q: Does the ±10% tolerance of TPSY477K006R0150 provide a functional advantage over ±20% parts?

A: Tighter tolerance (±10% versus ±20%) reduces capacitance variation across the production range, providing improved circuit performance consistency. This is beneficial in precision filtering, timing, or energy storage applications where capacitance accuracy is critical. For general-purpose applications, ±20% tolerance is typically sufficient.

Q: What packaging format should I select: Tape & Reel (TR) or Cut Tape (CT)?

A: Tape & Reel packaging is standard for high-volume automated assembly. Cut Tape is used for lower-volume or manual assembly processes. Electrically and mechanically, both formats are identical for the same part number. Select based on your assembly process requirements and order quantities.

Q: Are all substitute parts available in the same 2917 (7343 Metric) package?

A: Yes. All listed substitute parts use the 2917 (7343 Metric) package designation, ensuring identical PCB footprint compatibility. Physical dimensions (length, width, height) may vary slightly between manufacturers and series. Verify maximum seated height specifications if space constraints exist in your design.

Q: Which substitute part offers the best overall compatibility with the original 1-1879065-0?

A: T494D477M006AT (KEMET) and TR3D477M6R3C0150 (Vishay Sprague) provide the closest electrical match: 470 µF capacitance, ±20% tolerance, 150 mOhm ESR, 2917 package, and -55°C to 125°C operating range. Both are active products with ROHS3 compliance. T494D477M006AT offers higher inventory availability (3073 pcs).

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