TAJS225M016RNJ Equivalent & Substitute Parts

Part Overview

The TAJS225M016RNJ is a 2.2 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 16 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 equivalent electrical performance and mechanical compatibility are maintained across the specified parameter ranges for molded tantalum capacitor applications.

Key Parameters

Parameter	Value
Capacitance	2.2 µF
Voltage Rating	16 V
Tolerance	±20%
Package / Case	1206 (3216 Metric)
Mounting Type	Surface Mount
Type	Molded Tantalum
Operating Temperature Range	-55°C ~ 125°C
ESR (Equivalent Series Resistance)	6 Ohm
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the TAJS225M016RNJ is determined by strict equivalence in the following parameters:

Capacitance: 2.2 µF (exact match required)
Voltage Rating: 16 V (exact match required)
Package / Case: 1206 (3216 Metric) (exact match required)
Mounting Type: Surface Mount (exact match required)
Operating Temperature Range: -55°C ~ 125°C (exact match required)
Type: Molded Tantalum (exact match required)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)

Tolerance and ESR values may vary within acceptable ranges for the product category. All identified substitutes meet these core electrical and mechanical compatibility criteria.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance	Tolerance	Voltage Rating	ESR (Ohm)	Package	Height - Seated (Max)	Product Status	RoHS Status
TAJS225M016RNJ	KYOCERA AVX	TAJ	2.2 µF	±20%	16 V	6	1206 (3216 Metric)	0.047" (1.20mm)	Active	ROHS3 Compliant
TAJS225K016RNJ	KYOCERA AVX	TAJ	2.2 µF	±10%	16 V	6	1206 (3216 Metric)	0.047" (1.20mm)	Active	ROHS3 Compliant
TAJA225M016RNJ	KYOCERA AVX	TAJ	2.2 µF	±20%	16 V	6.5	1206 (3216 Metric)	0.071" (1.80mm)	Active	ROHS3 Compliant
TPSA225M016R3500	KYOCERA AVX	TPS	2.2 µF	±20%	16 V	4.6	1206 (3216 Metric)	0.071" (1.80mm)	Active	ROHS3 Compliant
293D225X0016A2TE3	Vishay Sprague	TANTAMOUNT™, 293D	2.2 µF	±20%	16 V	5.9	1206 (3216 Metric)	0.071" (1.80mm)	Active	ROHS3 Compliant
T491A225M016AT	KEMET	T491	2.2 µF	±20%	16 V	6	1206 (3216 Metric)	0.071" (1.80mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory and supply chain continuity. Selection between substitutes is determined by specific application requirements:

TAJS225K016RNJ offers tighter tolerance (±10% versus ±20%) while maintaining identical ESR and height specifications as the primary part.

TAJA225M016RNJ and T491A225M016AT provide equivalent ESR performance with increased seated height (0.071" versus 0.047"), requiring PCB layout verification for clearance compatibility.

TPSA225M016R3500 delivers reduced ESR (4.6 Ohm versus 6 Ohm), beneficial for applications requiring lower impedance characteristics, with increased seated height requiring clearance confirmation.

293D225X0016A2TE3 from Vishay Sprague provides cross-manufacturer equivalence with ESR of 5.9 Ohm and increased seated height, suitable for supply diversification strategies.

Frequently Asked Questions (FAQ)

Q: Can TAJS225K016RNJ replace TAJS225M016RNJ directly?

A: Yes. TAJS225K016RNJ is electrically and mechanically compatible. The primary difference is tighter capacitance tolerance (±10% versus ±20%). Both parts share identical ESR (6 Ohm) and seated height (0.047"), requiring no PCB modifications.

Q: What is the impact of different ESR values among substitutes?

A: ESR affects impedance characteristics and ripple current handling. TPSA225M016R3500 has lower ESR (4.6 Ohm), reducing impedance in high-frequency applications. TAJA225M016RNJ and 293D225X0016A2TE3 have slightly higher ESR (6.5 Ohm and 5.9 Ohm respectively), remaining within acceptable ranges for general-purpose applications.

Q: Do height differences affect PCB compatibility?

A: Yes. TAJS225M016RNJ and TAJS225K016RNJ have seated height of 0.047" (1.20mm). TAJA225M016RNJ, TPSA225M016R3500, 293D225X0016A2TE3, and T491A225M016AT have seated height of 0.071" (1.80mm). Verify PCB clearance and component placement constraints before substitution.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All identified substitutes are ROHS3 compliant and maintain Moisture Sensitivity Level 1 (Unlimited), ensuring regulatory equivalence and handling compatibility.

Q: Can I use T491A225M016AT from KEMET as a cross-manufacturer substitute?

A: Yes. T491A225M016AT meets all electrical and mechanical specifications. It is Active status, ROHS3 compliant, and provides 2000 Hrs @ 125°C lifetime rating. Verify manufacturer-specific datasheets for application-specific performance characteristics.

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