TAJS226M006RNJ Equivalent & Substitute Parts

Part Overview

The TAJS226M006RNJ is a 22 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 6.3 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 when electrical specifications (capacitance, voltage rating, tolerance) and mechanical parameters (package, mounting type, dimensions) remain within acceptable equivalence ranges for direct board-level replacement.

Key Parameters

Parameter	Value
Capacitance	22 µF
Voltage Rating	6.3 V
Tolerance	±20%
Package / Case	1206 (3216 Metric)
Mounting Type	Surface Mount
Type	Molded Tantalum
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TAJS226M006RNJ are qualified based on the following criteria:

Electrical Equivalence: All substitute parts maintain identical capacitance (22 µF), voltage rating (6.3 V), and tolerance (±20%).

Mechanical Compatibility: All substitute parts use the same 1206 (3216 Metric) package with surface mount configuration, ensuring PCB footprint compatibility.

Environmental Compliance: All substitute parts are ROHS3 compliant and rated for the same operating temperature range (-55°C ~ 125°C).

Functional Differences: Substitute parts vary in Equivalent Series Resistance (ESR) and manufacturer series designation. ESR variations (ranging from 500 mOhm to 4 Ohm) do not disqualify substitution but may affect circuit performance in applications sensitive to impedance characteristics.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance	Voltage Rating	Tolerance	ESR	Package	Height (Max)	RoHS Status	Inventory
TAJS226M006RNJ	KYOCERA AVX	TAJ	22 µF	6.3 V	±20%	1.8 Ohm	1206 (3216 Metric)	0.047" (1.20 mm)	ROHS3	2028 Pcs
TAJA226M006RNJ	KYOCERA AVX	TAJ	22 µF	6.3 V	±20%	3 Ohm	1206 (3216 Metric)	0.071" (1.80 mm)	ROHS3	7193 Pcs
TCA0J226M8R	KYOCERA AVX	TC	22 µF	6.3 V	±20%	—	1206 (3216 Metric)	0.071" (1.80 mm)	ROHS3	2398 Pcs
TPSA226M006R0500	KYOCERA AVX	TPS	22 µF	6.3 V	±20%	500 mOhm	1206 (3216 Metric)	0.071" (1.80 mm)	ROHS3	4200 Pcs
TPSA226M006R0900	KYOCERA AVX	TPS	22 µF	6.3 V	±20%	900 mOhm	1206 (3216 Metric)	0.071" (1.80 mm)	ROHS3	2624 Pcs
293D226X06R3A2TE3	Vishay Sprague	293D	22 µF	6.3 V	±20%	2.9 Ohm	1206 (3216 Metric)	0.071" (1.80 mm)	ROHS3	1871 Pcs
T491A226M006AT	KEMET	T491	22 µF	6.3 V	±20%	4 Ohm	1206 (3216 Metric)	0.071" (1.80 mm)	ROHS3	3716 Pcs
T494A226M006AT	KEMET	T494	22 µF	6.3 V	±20%	3 Ohm	1206 (3216 Metric)	0.071" (1.80 mm)	ROHS3	2767 Pcs

Engineering Selection Recommendations

All listed substitute parts meet the core electrical and mechanical requirements for direct replacement of the TAJS226M006RNJ. Selection among substitutes should be based on:

Availability: TAJA226M006RNJ (7193 Pcs) and TPSA226M006R0500 (4200 Pcs) offer the highest inventory levels.

ESR Sensitivity: Applications requiring minimal impedance should prioritize TPSA226M006R0500 (500 mOhm ESR). Applications with higher ESR tolerance may select from TAJA226M006RNJ (3 Ohm), 293D226X06R3A2TE3 (2.9 Ohm), or T494A226M006AT (3 Ohm).

Manufacturer Preference: KYOCERA AVX parts (TAJ, TC, TPS series) maintain original manufacturer continuity. KEMET (T491, T494 series) and Vishay Sprague (293D series) provide cross-manufacturer alternatives with equivalent compliance certifications.

Height Clearance: The original TAJS226M006RNJ has a maximum seated height of 0.047" (1.20 mm), while all substitute parts measure 0.071" (1.80 mm). PCB layout must accommodate this height difference.

Frequently Asked Questions (FAQ)

Q: Can TPSA226M006R0500 replace TAJS226M006RNJ directly on the PCB?

A: Yes. Both parts share identical capacitance (22 µF), voltage rating (6.3 V), tolerance (±20%), and 1206 package footprint. The primary difference is ESR (500 mOhm vs. 1.8 Ohm) and seated height (0.071" vs. 0.047"). Verify PCB clearance for the increased height.

Q: What is the significance of ESR variation among substitute parts?

A: ESR affects circuit impedance and thermal performance. Lower ESR (500 mOhm in TPSA226M006R0500) reduces voltage ripple and heat generation. Higher ESR (4 Ohm in T491A226M006AT) may increase ripple but remains within acceptable ranges for general-purpose applications. Select based on circuit requirements.

Q: Are KEMET T491 and T494 series compatible with KYOCERA AVX TAJ series?

A: Yes. Both manufacturers' parts meet identical electrical specifications (22 µF, 6.3 V, ±20%) and package requirements (1206 surface mount). All are ROHS3 compliant with MSL 1 rating. Cross-manufacturer substitution is electrically valid.

Q: Does the height difference between TAJS226M006RNJ (1.20 mm) and substitutes (1.80 mm) affect functionality?

A: Height difference does not affect electrical function but requires PCB layout verification. Confirm clearance above the component to prevent mechanical interference with adjacent components or enclosure constraints.

Q: Which substitute offers the best balance of availability and performance?

A: TAJA226M006RNJ combines high availability (7193 Pcs), moderate ESR (3 Ohm), and KYOCERA AVX manufacturer continuity. TPSA226M006R0500 is preferred for low-impedance applications requiring minimal ESR (500 mOhm).

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