QM054D226MAT2A Equivalent & Substitute Parts

Part Overview

The QM054D226MAT2A is a 22 µF ±20% 4V ceramic capacitor in X5R temperature coefficient, 0805 (2012 Metric) package, manufactured by KYOCERA AVX. This part is classified as obsolete, making substitute components necessary for ongoing production and design requirements. The X5R temperature coefficient and 4V rated voltage establish the baseline electrical characteristics for identifying compatible alternatives across multiple manufacturers.

Key Parameters

Parameter	Value
Capacitance	22 µF
Tolerance	±20%
Voltage - Rated	4V
Temperature Coefficient	X5R
Operating Temperature Range	-55°C ~ 85°C
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCC
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts are organized into two categories based on electrical compatibility:

Direct Substitutes (Same Electrical Specifications): Parts with identical capacitance (22 µF), tolerance (±20%), voltage rating (4V), temperature coefficient (X5R), and package (0805). These parts maintain full functional equivalence and can be used as direct replacements without circuit redesign.

Upgrade Substitutes (Higher Voltage Rating): Parts with identical capacitance (22 µF), tolerance (±20%), temperature coefficient (X5R), and package (0805), but with higher voltage ratings (6.3V or 10V). These parts provide enhanced voltage margin and are electrically compatible in circuits designed for 4V operation, as higher-rated components operate safely at lower voltages.

The following parameters determine substitution eligibility:

Capacitance value (22 µF)
Temperature coefficient (X5R)
Package size (0805 / 2012 Metric)
Mounting type (Surface Mount, MLCC)
Operating temperature range (-55°C ~ 85°C)
Moisture sensitivity level (1)

Parameter Comparison

Manufacturer	Part Number	Capacitance	Tolerance	Voltage	Temp Coeff	Package	Product Status	RoHS Status
KYOCERA AVX	QM054D226MAT2A	22 µF	±20%	4V	X5R	0805	Obsolete	REACH Unaffected
KYOCERA AVX	KGM21AR50G226MU	22 µF	±20%	4V	X5R	0805	Active	ROHS3 Compliant
KYOCERA AVX	KGM21AR50J226MU	22 µF	±20%	6.3V	X5R	0805	Active	ROHS3 Compliant
KYOCERA AVX	KGM21AR51A226MU	22 µF	±20%	10V	X5R	0805	Active	ROHS3 Compliant
Samsung Electro-Mechanics	CL21A226MRCLRNC	22 µF	±20%	4V	X5R	0805	Active	ROHS3 Compliant
KEMET	C0805C226M9PAC7800	22 µF	±20%	6.3V	X5R	0805	Active	ROHS3 Compliant
TDK Corporation	C2012X5R0J226K125AB	22 µF	±10%	6.3V	X5R	0805	Not For New Designs	ROHS3 Compliant
TDK Corporation	C2012X5R0J226M085AB	22 µF	±20%	6.3V	X5R	0805	Not For New Designs	ROHS3 Compliant
TDK Corporation	C2012X5R1A226K125AB	22 µF	±10%	10V	X5R	0805	Not For New Designs	ROHS3 Compliant
TDK Corporation	C2012X5R1A226M085AC	22 µF	±20%	10V	X5R	0805	Not For New Designs	ROHS3 Compliant
TDK Corporation	C2012X5R1A226M125AB	22 µF	±20%	10V	X5R	0805	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Direct Substitute: KGM21AR50G226MU (KYOCERA AVX) is the recommended direct replacement. This part maintains identical electrical specifications (22 µF, ±20%, 4V, X5R) and is manufactured by the same supplier as the obsolete QM054D226MAT2A. Active product status and ROHS3 compliance ensure long-term availability and regulatory compliance.

Alternative Direct Substitute: CL21A226MRCLRNC (Samsung Electro-Mechanics) provides equivalent electrical performance with identical capacitance, tolerance, voltage, and temperature coefficient. Active product status and ROHS3 compliance support production continuity.

Voltage-Upgraded Substitutes: For applications requiring enhanced voltage margin, KGM21AR50J226MU (6.3V) and KGM21AR51A226MU (10V) from KYOCERA AVX, or C0805C226M9PAC7800 (6.3V) from KEMET, are suitable alternatives. These parts operate safely at 4V and provide additional design margin. All are active products with ROHS3 compliance.

Legacy Alternatives: TDK Corporation parts (C2012X5R series) are classified as "Not For New Designs" and should be avoided for new production unless existing inventory constraints require their use. These parts remain electrically compatible but lack active product status.

Frequently Asked Questions (FAQ)

Q: Can KGM21AR50G226MU directly replace QM054D226MAT2A without circuit modification?

A: Yes. Both parts share identical electrical specifications: 22 µF capacitance, ±20% tolerance, 4V voltage rating, X5R temperature coefficient, and 0805 package. No circuit redesign is required.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes (KGM21AR50G226MU, CL21A226MRCLRNC) maintain the same 4V voltage rating as the original part. Upgrade substitutes (KGM21AR50J226MU at 6.3V, KGM21AR51A226MU at 10V) provide higher voltage ratings while maintaining all other electrical parameters. Upgrade substitutes are compatible in 4V circuits and provide additional voltage safety margin.

Q: Are there packaging differences between substitute parts?

A: All listed substitutes use the 0805 (2012 Metric) package with surface mount mounting. Physical dimensions are consistent across manufacturers, with minor variations in thickness (ranging from 0.037" to 0.057"). Verify PCB layout compatibility if thickness is a constraint.

Q: Why are some TDK parts marked "Not For New Designs"?

A: Parts with "Not For New Designs" status indicate the manufacturer is phasing out these components. While electrically compatible, they should not be selected for new product development. Active alternatives from KYOCERA AVX or Samsung Electro-Mechanics are preferred for long-term production.

Q: What does ROHS3 compliance mean for component selection?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead and other hazardous materials. All active substitute parts listed are ROHS3 compliant, ensuring regulatory compliance for EU and global markets.

Q: Can I use a 10V-rated capacitor in a circuit designed for 4V?

A: Yes. A 10V-rated capacitor operates safely at 4V and provides additional voltage margin. However, higher voltage ratings may result in slightly different electrical characteristics (such as capacitance variation with voltage). Verify performance requirements if tight capacitance tolerance is critical.

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