TARR474M050 Equivalent & Substitute Parts

Part Overview

The TARR474M050 is a 0.47 µF molded tantalum axial capacitor rated at 50 V with ±20% tolerance, manufactured by KYOCERA AVX. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part features a 13 Ohm equivalent series resistance (ESR) and operates across the -55°C to 125°C temperature range, suitable for general-purpose applications in through-hole circuit designs.

Key Parameters

Parameter	Value
Capacitance	0.47 µF
Tolerance	±20%
Voltage Rating	50 V
Type	Molded Tantalum
Package	Axial
Mounting Type	Through Hole
Operating Temperature	-55°C to 125°C
ESR	13 Ohm
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the TARR474M050 is determined by strict equivalence in the following parameters:

Capacitance Value: 0.47 µF (exact match required)
Voltage Rating: 50 V (exact match required)
Package Type: Axial through-hole configuration
Mounting Type: Through-hole
Operating Temperature Range: -55°C to 125°C minimum

Substitute parts are grouped into three categories:

Direct Equivalents maintain the original ±20% tolerance specification and are pin-compatible replacements with identical electrical performance.

Upgrade Options offer improved tolerance specifications (±5% or ±10%) while maintaining all other electrical and mechanical parameters, providing enhanced precision for applications requiring tighter capacitance control.

Manufacturer-Recommended Alternatives include both non-compliant and RoHS3-compliant variants, with the latter suitable for applications subject to environmental regulations.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage	ESR	Package	Size (Dia x L)	Product Status	RoHS Status
TARR474M050	KYOCERA AVX	0.47 µF	±20%	50 V	13 Ohm	Axial	0.098" x 0.291" (2.50mm x 7.40mm)	Obsolete	Non-compliant
173D474X0050V	Vishay Sprague	0.47 µF	±20%	50 V	—	Axial	0.110" x 0.290" (2.79mm x 7.37mm)	Active	Non-compliant
173D474X0050VW	Vishay Sprague	0.47 µF	±20%	50 V	—	Axial	0.110" x 0.290" (2.79mm x 7.37mm)	Active	Non-compliant
173D474X5050V	Vishay Sprague	0.47 µF	±5%	50 V	—	Axial	0.110" x 0.290" (2.79mm x 7.37mm)	Active	Non-compliant
173D474X9050VW	Vishay Sprague	0.47 µF	±10%	50 V	—	Axial	0.110" x 0.290" (2.79mm x 7.37mm)	Active	Non-compliant
T322B474K050AS	KEMET	0.47 µF	±10%	50 V	13 Ohm	Axial	0.110" x 0.290" (2.79mm x 7.37mm)	Active	Non-compliant
173D474X0050VE3	Vishay Sprague	0.47 µF	±20%	50 V	—	Axial	0.110" x 0.290" (2.79mm x 7.37mm)	Active	ROHS3 Compliant
173D474X0050VWE3	Vishay Sprague	0.47 µF	±20%	50 V	—	Axial	0.110" x 0.290" (2.79mm x 7.37mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications)

The 173D474X0050V and 173D474X0050VW from Vishay Sprague TANTALEX™ 173D series provide direct electrical equivalence with ±20% tolerance matching the original TARR474M050. Both parts are active products with continuous availability. Selection between these two depends on packaging requirements: 173D474X0050V is supplied in Tape & Box format, while 173D474X0050VW is supplied in Tape & Reel format for automated assembly processes.

For Improved Tolerance Requirements

The 173D474X5050V offers ±5% tolerance and the 173D474X9050VW offers ±10% tolerance, both from Vishay Sprague. These upgrades maintain identical voltage, capacitance, and operating temperature specifications while providing enhanced precision. The 173D474X9050VW is also available in Tape & Reel packaging.

For ESR-Critical Applications

The T322B474K050AS from KEMET T322 series matches the original 13 Ohm ESR specification while offering ±10% tolerance. This part is supplied in bulk packaging and is suitable for applications where ESR performance is a design constraint.

For RoHS3 Compliance

The 173D474X0050VE3 and 173D474X0050VWE3 from Vishay Sprague are RoHS3-compliant alternatives maintaining ±20% tolerance. These parts are required for applications subject to environmental regulations. The VE3 variant is supplied in Tape & Box format, while the VWE3 variant is supplied in Tape & Reel format.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different physical dimensions?

A: Yes. The substitute parts from Vishay Sprague and KEMET have slightly larger physical dimensions (0.110" diameter vs. 0.098" for the original) but maintain the same axial through-hole package type. Verify that your PCB layout accommodates the larger body diameter before selection.

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

A: Tape & Box (TB) packaging is suitable for manual assembly and small-volume production. Tape & Reel (TR) packaging is designed for automated pick-and-place assembly equipment. Select based on your manufacturing process requirements.

Q: Are all substitute parts RoHS compliant?

A: No. Most substitute parts listed are RoHS non-compliant. Only the 173D474X0050VE3 and 173D474X0050VWE3 variants are RoHS3 compliant. Select the compliant variants if your application or market requires environmental regulation adherence.

Q: Can I use a part with tighter tolerance (±5% or ±10%) as a direct replacement?

A: Yes. Parts with tighter tolerance specifications (±5% or ±10%) are electrically superior and fully compatible with designs specified for ±20% tolerance. No circuit modifications are required.

Q: Why is the original TARR474M050 marked as obsolete?

A: Obsolescence indicates that KYOCERA AVX has discontinued production. Active substitute parts from Vishay Sprague and KEMET provide equivalent or superior performance with ongoing manufacturing support and availability.

Q: Does ESR matter for my application?

A: ESR (Equivalent Series Resistance) affects high-frequency performance and ripple current handling. If your original design specified 13 Ohm ESR, use the T322B474K050AS from KEMET, which matches this specification. For general-purpose applications, ESR differences between listed substitutes are not critical.

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