LT056D106MAT2X Equivalent & Substitute Parts

Part Overview

The LT056D106MAT2X is a 10 µF ±20% 6.3V ceramic capacitor in X5R temperature coefficient, manufactured by KYOCERA AVX in 0805 (2012 Metric) surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The X5R temperature coefficient ensures stable capacitance across the -55°C to 85°C operating range, suitable for general purpose bypass and decoupling applications in consumer and industrial electronics.

Key Parameters

Parameter	Value
Capacitance	10 µF
Tolerance	±20%
Voltage Rating	6.3V
Temperature Coefficient	X5R
Operating Temperature Range	-55°C to 85°C
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCC
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the LT056D106MAT2X is determined by strict equivalence in the following parameters:

Capacitance: 10 µF (exact match required)
Voltage Rating: 6.3V minimum (higher ratings acceptable as derating)
Temperature Coefficient: X5R (required for temperature stability)
Package: 0805 (2012 Metric) surface mount (physical and electrical compatibility)
Tolerance: ±20% or tighter (±10% acceptable as improvement)
Operating Temperature: -55°C to 85°C (minimum requirement)
Moisture Sensitivity: MSL 1 (unlimited shelf life)

Substitute parts are grouped into two categories:

Direct Equivalents (6.3V Rating): Parts matching all parameters including 6.3V voltage rating.

Functional Equivalents (Higher Voltage Rating): Parts with 10V or higher voltage rating, which operate within the 6.3V application through derating and provide additional safety margin.

Parameter Comparison

Manufacturer	Part Number	Capacitance	Tolerance	Voltage	Temp Coeff	Package	Thickness (Max)	Product Status	RoHS Status
KYOCERA AVX	LT056D106MAT2X	10 µF	±20%	6.3V	X5R	0805	0.95mm	Obsolete	REACH Unaffected
KEMET	C0805C106M9PAC7800	10 µF	±20%	6.3V	X5R	0805	1.40mm	Active	ROHS3 Compliant
YAGEO	CC0805MRX5R5BB106	10 µF	±20%	6.3V	X5R	0805	0.95mm	Active	ROHS3 Compliant
Samsung Electro-Mechanics	CL21A106KQFNNNE	10 µF	±10%	6.3V	X5R	0805	1.35mm	Active	ROHS3 Compliant
Samsung Electro-Mechanics	CL21A106MQFNNNE	10 µF	±20%	6.3V	X5R	0805	1.35mm	Active	ROHS3 Compliant
Samsung Electro-Mechanics	CL21A106MPFNNNE	10 µF	±20%	10V	X5R	0805	1.35mm	Active	ROHS3 Compliant
Taiyo Yuden	JMK212BJ106MG-T	10 µF	±20%	6.3V	X5R	0805	1.35mm	Not For New Designs	ROHS3 Compliant
Johanson Dielectrics Inc.	TCCT6R3X106M1GV001E	10 µF	±20%	6.3V	X5R	0805	1.52mm	Active	ROHS3 Compliant

Engineering Selection Recommendations

For New Designs and Active Production:

Select from active product status parts with ROHS3 compliance: C0805C106M9PAC7800 (KEMET), CC0805MRX5R5BB106 (YAGEO), CL21A106KQFNNNE (Samsung Electro-Mechanics), CL21A106MQFNNNE (Samsung Electro-Mechanics), or TCCT6R3X106M1GV001E (Johanson Dielectrics). These parts ensure long-term supply availability and regulatory compliance.

For Improved Tolerance Specification:

CL21A106KQFNNNE offers ±10% tolerance, providing tighter capacitance control compared to the ±20% specification of the original part.

For Higher Voltage Derating:

CL21A106MPFNNNE (10V rating) provides additional voltage margin when operated at 6.3V, suitable for applications requiring enhanced reliability.

Avoid for New Designs:

JMK212BJ106MG-T carries "Not For New Designs" status and should be used only for legacy system maintenance or repair.

Physical Fit Consideration:

CC0805MRX5R5BB106 matches the original 0.95mm maximum thickness, minimizing PCB layout changes. Other substitutes range from 1.35mm to 1.52mm thickness and require verification of available board space.

Frequently Asked Questions (FAQ)

Q: Can I use a 10V rated capacitor in place of the 6.3V rated LT056D106MAT2X?

A: Yes. CL21A106MPFNNNE (10V rating) is electrically compatible through derating. The 10V rating provides additional safety margin when the circuit operates at 6.3V or below. This is a standard engineering practice and does not compromise performance.

Q: What is the difference between ±20% and ±10% tolerance?

A: Both tolerances are acceptable substitutes. The ±10% tolerance of CL21A106KQFNNNE provides tighter capacitance control, which may benefit applications sensitive to capacitance variation. The ±20% tolerance matches the original specification.

Q: Does the thickness difference affect PCB compatibility?

A: Thickness differences (0.95mm to 1.52mm) may impact PCB layout if space is constrained. Verify available clearance above the component. CC0805MRX5R5BB106 maintains the original 0.95mm thickness for direct fit compatibility.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts listed carry ROHS3 compliance certification, meeting current environmental and regulatory requirements.

Q: Why is JMK212BJ106MG-T marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development for this part. While functionally equivalent and currently in stock, it should be reserved for maintenance of existing systems. Active alternatives are preferred for new product development.

Q: Can I mix different manufacturers' parts in the same assembly?

A: Yes. All listed substitutes meet the same electrical and mechanical specifications. Mixing manufacturers is acceptable from an engineering standpoint, though procurement and quality control processes may apply.

Q: What does MSL 1 (Unlimited) mean?

A: MSL 1 indicates Moisture Sensitivity Level 1, meaning the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed parts carry this rating.

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