TAJS104K050RNJ Equivalent & Substitute Parts

Part Overview

The TAJS104K050RNJ is a 0.1 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 50 V operation in a 1206 (3216 Metric) surface mount package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified based on matching electrical specifications (capacitance, voltage rating, tolerance) and mechanical compatibility (package size, mounting type, form factor).

Substiute Parts

TAJS104K050RNJ

KYOCERA AVXIn Stock: 1019TAJS104K050RNJ Datasheet

Current PartRFQ

TAJA104K050RNJ

KYOCERA AVXIn Stock: 1223TAJA104K050RNJ Datasheet

MFR RecommendedRFQ

293D104X9050A2TE3

Vishay SpragueIn Stock: 10234293D104X9050A2TE3 Datasheet

MFR RecommendedRFQ

T491A104K050AT

KEMETIn Stock: 1227T491A104K050AT Datasheet

MFR RecommendedRFQ

T494A104K050AT

KEMETIn Stock: 8839T494A104K050AT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TAJS104K050RNJ are qualified based on the following criteria:

• Capacitance: 0.1 µF (exact match required)
• Voltage Rating: 50 V (exact match required)
• Tolerance: ±10% (exact match required)
• Package / Case: 1206 (3216 Metric) (exact match required)
• Type: Molded Tantalum (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

All identified substitutes meet these core electrical and mechanical parameters. Variations in ESR (Equivalent Series Resistance) and physical height are noted but do not disqualify substitution eligibility within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original TAJS104K050RNJ. Selection among substitutes should be based on:

• Packaging Format: TAJA104K050RNJ is supplied in Cut Tape (CT) & Digi-Reel® format; 293D104X9050A2TE3 and T494A104K050AT are supplied in Tape & Reel (TR); T491A104K050AT is supplied in Cut Tape (CT) & Digi-Reel®.
• ESR Characteristics: T494A104K050AT offers the lowest ESR at 10 Ohm, suitable for applications requiring minimal impedance. TAJA104K050RNJ and 293D104X9050A2TE3 maintain 19-22 Ohm ESR, consistent with the original specification.
• Inventory Availability: All parts are in stock; quantities range from 982 to 10,171 units.
• Lifetime Rating: T491A104K050AT and T494A104K050AT specify 2000 Hrs @ 125°C lifetime; original and other substitutes do not specify this parameter.

Frequently Asked Questions (FAQ)

Q: Can TAJA104K050RNJ replace TAJS104K050RNJ directly?

A: Yes. Both parts share identical electrical specifications (0.1 µF, 50 V, ±10% tolerance) and mechanical form factor (1206 package, surface mount). The primary difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and ESR variance (22 Ohm versus 19 Ohm). Both are KYOCERA AVX products with Active status and ROHS3 compliance.

Q: What is the significance of ESR differences among substitutes?

A: ESR (Equivalent Series Resistance) affects impedance characteristics at operating frequencies. T494A104K050AT (10 Ohm ESR) provides lower impedance than the original TAJS104K050RNJ (19 Ohm ESR). Selection depends on circuit requirements; lower ESR is beneficial in high-frequency or noise-sensitive applications.

Q: Are all substitutes compatible with the same PCB footprint?

A: Yes. All parts conform to the 1206 (3216 Metric) package specification with identical length (0.126" / 3.20mm) and width (0.063" / 1.60mm). Physical height varies slightly (1.20mm to 1.80mm seated height maximum), which does not affect PCB footprint compatibility but may impact board-level clearance in space-constrained designs.

Q: Do substitute parts meet the same compliance requirements?

A: Yes. All substitute parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8532.21.0050, matching the original part's regulatory status.

Q: Which substitute offers the best long-term reliability?

A: T491A104K050AT and T494A104K050AT both specify 2000 Hrs @ 125°C lifetime rating. The original TAJS104K050RNJ and other substitutes do not provide explicit lifetime specifications in the available data.