TARR334M050 Equivalent & Substitute Parts

Part Overview

The TARR334M050 is a 0.33 µF molded tantalum axial capacitor rated at 50 V with ±20% tolerance, manufactured by KYOCERA AVX. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part operates across a temperature range of -55°C to 125°C and features 15Ohm equivalent series resistance (ESR), suitable for general-purpose applications in through-hole circuit designs.

Key Parameters

Parameter	Value
Capacitance	0.33 µF
Voltage Rating	50 V
Tolerance	±20%
Type	Molded Tantalum
Mounting Type	Through Hole
Package	Axial
Operating Temperature Range	-55°C to 125°C
ESR	15Ohm
RoHS Status	Non-compliant

Substitute Part Grouping Explanation

Substitution for the TARR334M050 is determined by strict equivalence in the following parameters: capacitance (0.33 µF), voltage rating (50 V), mounting type (through hole), and package configuration (axial). The substitute parts are grouped into three categories based on their relationship to the original specification:

Direct Equivalent (173D334X0050VW): Matches all critical electrical parameters and physical dimensions within acceptable tolerances. Tolerance remains ±20%, maintaining specification parity.

Upgraded Tolerance Substitutes (173D334X9050VW, T322B334K050AS): Provide tighter tolerance (±10%) while maintaining identical capacitance, voltage, and package specifications. These parts offer improved precision for applications requiring stricter component tolerances.

Manufacturer-Recommended Replacement (173D334X0050VWE3): Direct electrical equivalent with identical tolerance (±20%) and enhanced RoHS3 compliance status, addressing regulatory requirements while preserving original performance characteristics.

Parameter Comparison

Parameter	TARR334M050	173D334X0050VW	173D334X9050VW	T322B334K050AS	173D334X0050VWE3
Manufacturer	KYOCERA AVX	Vishay Sprague	Vishay Sprague	KEMET	Vishay Sprague
Capacitance	0.33 µF	0.33 µF	0.33 µF	0.33 µF	0.33 µF
Voltage Rating	50 V	50 V	50 V	50 V	50 V
Tolerance	±20%	±20%	±10%	±10%	±20%
Type	Molded	Molded	Molded	Molded	Molded
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package	Axial	Axial	Axial	Axial	Axial
Operating Temperature	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
ESR	15Ohm	Not specified	Not specified	15Ohm	Not specified
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	Non-compliant	Non-compliant	Non-compliant	Non-compliant	RoHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement: Select 173D334X0050VW when maintaining exact specification parity with the original TARR334M050 is required. This part provides identical electrical characteristics and tolerance while offering active product status and established supply availability.

For Improved Tolerance Requirements: Choose 173D334X9050VW or T322B334K050AS when circuit design permits tighter tolerance specifications (±10%). Both parts maintain all critical electrical and physical parameters while providing enhanced precision. T322B334K050AS additionally specifies 15Ohm ESR, matching the original component's resistance characteristic.

For Regulatory Compliance: Specify 173D334X0050VWE3 when RoHS3 compliance is mandated. This part delivers identical electrical performance to the original while meeting current environmental and regulatory standards, making it suitable for applications subject to modern compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can 173D334X0050VW be used as a direct replacement for TARR334M050? A: Yes. Both parts share identical capacitance (0.33 µF), voltage rating (50 V), tolerance (±20%), operating temperature range (-55°C to 125°C), and axial through-hole package configuration. The parts are electrically and mechanically interchangeable.

Q: What is the difference between the ±20% and ±10% tolerance substitutes? A: The ±10% tolerance parts (173D334X9050VW and T322B334K050AS) provide tighter capacitance accuracy compared to the ±20% specification of the original TARR334M050. Selection depends on circuit tolerance requirements; applications with stricter capacitance specifications should use the ±10% variants.

Q: Why is 173D334X0050VWE3 recommended despite being functionally identical to 173D334X0050VW? A: The 173D334X0050VWE3 achieves RoHS3 compliance, addressing regulatory requirements for new designs and applications subject to environmental standards. The original TARR334M050 and direct equivalent 173D334X0050VW are non-compliant, making the RoHS3-compliant variant necessary for regulated applications.

Q: Are there physical dimension differences between substitute parts? A: The TARR334M050 measures 0.098" diameter × 0.291" length (2.50mm × 7.40mm). Substitute parts measure 0.110" diameter × 0.290" length (2.79mm × 7.37mm). These minor dimensional variations remain within acceptable tolerances for standard through-hole PCB layouts but should be verified for space-constrained applications.

Q: What is the significance of ESR in these capacitors? A: Equivalent Series Resistance (ESR) affects high-frequency performance and ripple current handling. The TARR334M050 and T322B334K050AS specify 15Ohm ESR. Substitute parts without specified ESR values should be verified with manufacturers if ESR is a critical design parameter.

Q: Which substitute offers the best long-term availability? A: All substitute parts carry active product status from established manufacturers (Vishay Sprague and KEMET), ensuring superior long-term availability compared to the obsolete TARR334M050. Selection should prioritize compliance requirements and tolerance specifications for your application.

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