TARS225M035 Equivalent & Substitute Parts

Part Overview

The TARS225M035 is a 2.2 µF molded tantalum capacitor rated at 35 V with ±20% tolerance, manufactured by KYOCERA AVX in axial through-hole configuration. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The TAR series represents a legacy product line, and active alternatives from current manufacturers provide direct functional replacement while maintaining electrical and mechanical compatibility.

Substiute Parts

TARS225M035

KYOCERA AVXIn Stock: 907TARS225M035 Datasheet

Current PartRFQ

173D225X0035WW

Vishay SpragueIn Stock: 901173D225X0035WW Datasheet

DirectRFQ

173D225X0050WW

Vishay SpragueIn Stock: 939173D225X0050WW Datasheet

DirectRFQ

173D225X0050WT

Vishay SpragueIn Stock: 754173D225X0050WT Datasheet

UpgradeRFQ

173D225X5050W

Vishay SpragueIn Stock: 1136173D225X5050W Datasheet

UpgradeRFQ

173D225X9035WW

Vishay SpragueIn Stock: 942173D225X9035WW Datasheet

UpgradeRFQ

173D225X9050WW

Vishay SpragueIn Stock: 783173D225X9050WW Datasheet

UpgradeRFQ

T322C225K035AS

KEMETIn Stock: 1032T322C225K035AS Datasheet

UpgradeRFQ

T322C225K050AS

KEMETIn Stock: 1097T322C225K050AS Datasheet

UpgradeRFQ

173D225X0035WWE3

Vishay SpragueIn Stock: 997173D225X0035WWE3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TARS225M035 is determined by strict electrical and mechanical compatibility across the following parameters:

Primary Substitution Criteria (Mandatory Match):

• Capacitance: 2.2 µF (exact)
• Voltage Rating: 35 V minimum (equal or higher acceptable)
• Tolerance: ±20% or tighter (±10%, ±5% acceptable)
• Mounting Type: Through Hole Axial (exact)
• Operating Temperature: -55°C to 125°C (exact or wider range acceptable)
• Type: Molded Tantalum (exact)

Secondary Compatibility Factors:

• Physical dimensions must accommodate axial lead spacing in existing PCB layouts
• ESR characteristics should remain within acceptable circuit performance parameters
• Packaging format (Tape & Reel vs. Bulk) does not affect electrical compatibility

Substitute Categories:

1. Direct Equivalents (Same Voltage, Same Tolerance): 173D225X0035WW, 173D225X0035WWE3
2. Voltage Upgrades (Higher Voltage Rating, Same Tolerance): 173D225X0050WW
3. Tolerance Upgrades (Same Voltage, Tighter Tolerance): 173D225X9035WW
4. Combined Upgrades (Higher Voltage, Tighter Tolerance): 173D225X5050W, 173D225X9050WW, T322C225K035AS, T322C225K050AS

All listed substitutes maintain the 2.2 µF capacitance value and -55°C to 125°C operating temperature range required for functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Specifications): Select 173D225X0035WW or 173D225X0035WWE3. Both maintain 2.2 µF capacitance, 35 V rating, and ±20% tolerance. The WWE3 variant offers RoHS3 compliance for applications requiring environmental standards adherence. Both are active products with confirmed inventory availability.

For Improved Tolerance (±10% vs. ±20%): Select 173D225X9035WW or T322C225K035AS. These provide tighter capacitance tolerance while maintaining 35 V rating and 2.2 µF value. T322C225K035AS additionally specifies 5 Ohm ESR, matching the original TARS225M035 characteristic.

For Voltage Margin Enhancement (50 V vs. 35 V): Select 173D225X0050WW, 173D225X9050WW, or T322C225K050AS. These provide higher voltage headroom while maintaining 2.2 µF capacitance. T322C225K050AS offers the lowest ESR at 4.6 Ohm, beneficial for low-impedance circuit applications.

For Maximum Performance Upgrade (50 V, ±5% Tolerance): Select 173D225X5050W. This combines highest voltage rating with tightest tolerance specification, suitable for precision applications requiring both margin and accuracy.

All recommended substitutes are classified as active products with current manufacturing status and confirmed stock availability.

Frequently Asked Questions (FAQ)

Q: Can I use a 50 V rated capacitor in place of the 35 V TARS225M035? A: Yes. Higher voltage ratings are electrically compatible. A 50 V capacitor operates safely in a 35 V circuit. Physical dimensions remain compatible with axial through-hole mounting.

Q: What is the difference between ±20% and ±10% tolerance? A: Tolerance specifies the allowable deviation from the nominal 2.2 µF value. ±20% allows 1.76 µF to 2.64 µF; ±10% allows 1.98 µF to 2.42 µF. Tighter tolerance (±10%) provides more precise capacitance for circuits requiring strict value control.

Q: Are there physical dimension differences between substitutes? A: Yes. The original TARS225M035 measures 0.169" diameter × 0.339" length. Vishay Sprague and KEMET substitutes measure 0.180" diameter × 0.345" length. Verify PCB layout clearances before substitution, particularly in space-constrained applications.

Q: Does RoHS compliance affect electrical performance? A: No. RoHS3 compliance (173D225X0035WWE3) indicates lead-free construction and environmental standards adherence. Electrical characteristics remain identical to non-compliant variants. Selection depends on regulatory requirements for your application.

Q: What does ESR (Equivalent Series Resistance) mean? A: ESR represents internal resistance affecting circuit performance at high frequencies. Lower ESR (4.6 Ohm in T322C225K050AS vs. 5 Ohm in TARS225M035) reduces ripple current effects and heat generation. Specify lower ESR for noise-sensitive or high-frequency applications.

Q: Can I substitute across different manufacturers? A: Yes. Vishay Sprague 173D series and KEMET T322 series are electrically and mechanically compatible when matching capacitance, voltage, tolerance, and mounting type. All listed substitutes meet these criteria.

Q: What packaging format should I select? A: Tape & Reel (TR) packaging suits automated assembly; Bulk packaging suits manual assembly or small-volume applications. Electrical performance is identical. Selection depends on procurement and assembly process requirements.