TARS475K035 Equivalent & Substitute Parts

Part Overview

The TARS475K035 is a 4.7 µF molded tantalum capacitor rated at 35 V with ±10% tolerance, manufactured by KYOCERA AVX in axial through-hole configuration. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and repair applications. Substitute parts must maintain identical electrical specifications (capacitance, voltage rating, tolerance) and mechanical compatibility (axial package, through-hole mounting) to ensure direct board-level replacement without circuit redesign.

Key Parameters

Parameter	Value
Capacitance	4.7 µF
Voltage Rating	35 V
Tolerance	±10%
Type	Molded Tantalum
Package	Axial
Mounting Type	Through Hole
Operating Temperature Range	-55°C to 125°C
ESR	3 Ohm (where specified)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

Capacitance: Must be 4.7 µF (no tolerance variation)
Voltage Rating: Must be 35 V (no derating)
Tolerance: Must be ±10% or tighter (±5% qualifies as upgrade)
Package Type: Must be axial, through-hole configuration
Operating Temperature: Must support -55°C to 125°C range
Type: Must be molded tantalum construction

All substitute parts listed below meet these core electrical and mechanical requirements. Differences in ESR, RoHS compliance, and packaging format (Cut Tape, Tape & Reel, Bulk) do not affect functional substitutability but may impact procurement and assembly workflows.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR	Package Format	Product Status	RoHS Status
TARS475K035	KYOCERA AVX	4.7 µF	35 V	±10%	3 Ohm	Axial	Obsolete	Non-compliant
173D475X9035W	Vishay Sprague	4.7 µF	35 V	±10%	—	Cut Tape (CT)	Active	Non-compliant
173D475X9035WW	Vishay Sprague	4.7 µF	35 V	±10%	—	Tape & Reel (TR)	Active	Non-compliant
T322C475K035AS	KEMET	4.7 µF	35 V	±10%	3 Ohm	Bulk	Active	Non-compliant
173D475X5035WW	Vishay Sprague	4.7 µF	35 V	±5%	—	Tape & Reel (TR)	Active	Non-compliant
173D475X9035WE3	Vishay Sprague	4.7 µF	35 V	±10%	—	Tape & Reel (TR)	Active	ROHS3 Compliant
173D475X9035WWE3	Vishay Sprague	4.7 µF	35 V	±10%	—	Tape & Reel (TR)	Active	ROHS3 Compliant
T322C475K035AT	KEMET	4.7 µF	35 V	±10%	3 Ohm	Bulk	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalents (Active Status, Non-RoHS)

173D475X9035W, 173D475X9035WW, and T322C475K035AS provide direct functional equivalence to TARS475K035. All three maintain identical electrical specifications and axial through-hole package geometry. Selection between these three depends on procurement packaging requirements: Cut Tape for small-quantity assembly, Tape & Reel for automated pick-and-place operations, or Bulk for manual insertion processes.

Upgraded Alternatives (Active Status, RoHS3 Compliant)

173D475X9035WE3, 173D475X9035WWE3, and T322C475K035AT are functionally equivalent substitutes with ROHS3 compliance certification. These parts are suitable for applications requiring RoHS compliance documentation and long-term supply chain sustainability. Electrical performance and mechanical fit remain identical to the original TARS475K035.

Tolerance Upgrade Option

173D475X5035WW offers tighter tolerance (±5% versus ±10%) while maintaining all other specifications. This part is applicable in circuits where improved capacitance accuracy provides performance benefits, though it is not required for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can 173D475X9035W, 173D475X9035WW, and T322C475K035AS be used interchangeably with TARS475K035?

A: Yes. All three parts share identical capacitance (4.7 µF), voltage rating (35 V), tolerance (±10%), package type (axial), and mounting method (through-hole). Differences in packaging format (Cut Tape, Tape & Reel, Bulk) affect procurement and assembly logistics but not electrical or mechanical compatibility.

Q: What is the difference between 173D475X9035WW and 173D475X9035WWE3?

A: Both parts are electrically and mechanically identical. The primary difference is RoHS compliance: 173D475X9035WW is RoHS non-compliant, while 173D475X9035WWE3 is ROHS3 compliant. Selection depends on regulatory requirements for the end application.

Q: Is 173D475X5035WW a suitable replacement for TARS475K035?

A: Yes, with the distinction that 173D475X5035WW has ±5% tolerance compared to the original ±10% tolerance. This represents an upgrade in capacitance accuracy and is fully compatible at the board level. Use this part when tighter tolerance specifications are beneficial.

Q: Does ESR specification affect substitutability?

A: ESR is not a substitution-limiting parameter for this product category. TARS475K035 specifies 3 Ohm ESR, while some Vishay Sprague alternatives do not publish ESR values. This does not prevent substitution; however, if ESR is critical to circuit performance, T322C475K035AS or T322C475K035AT (both 3 Ohm ESR) are preferred selections.

Q: Can these parts be used in new designs, or only as replacements for obsolete TARS475K035?

A: All substitute parts listed are active products suitable for both new designs and legacy replacements. Active status ensures ongoing availability and manufacturer support.

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