08056D105MAT2A Equivalent & Substitute Parts

Part Overview

The 08056D105MAT2A is a 1 µF ±20% 6.3V ceramic capacitor manufactured by KYOCERA AVX with X5R temperature coefficient in 0805 (2012 Metric) surface mount package. This part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained within the specified parameter tolerances for general purpose applications.

Key Parameters

Parameter	Value
Capacitance	1 µF
Tolerance	±20%
Voltage - Rated	6.3V
Temperature Coefficient	X5R
Operating Temperature Range	-55°C ~ 85°C
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 08056D105MAT2A is determined by the following criteria:

Electrical Parameters: Capacitance value (1 µF), tolerance grade (±20% or tighter), and rated voltage (6.3V or higher) must be maintained or exceeded.

Mechanical Parameters: Package type (0805/2012 Metric), surface mount configuration, and physical dimensions must remain compatible with the original design footprint.

Environmental Parameters: Temperature coefficient (X5R or equivalent performance), operating temperature range (-55°C ~ 85°C minimum), and moisture sensitivity level (MSL 1) must be satisfied.

Compliance Parameters: ROHS3 compliance and REACH unaffected status must be maintained.

Substitute parts are grouped by voltage rating upgrade capability while maintaining all other parameters. Higher voltage ratings (10V, 16V, 25V, 50V) provide additional design margin and are direct substitutes. Temperature coefficient variants (X7R) offer extended operating temperature range (-55°C ~ 125°C) with equivalent electrical performance.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Temp Range	Package	RoHS	MSL
08056D105MAT2A	KYOCERA AVX	1 µF	±20%	6.3V	X5R	-55°C ~ 85°C	0805	ROHS3	1
08056C105MAT2A	KYOCERA AVX	1 µF	±20%	6.3V	X7R	-55°C ~ 125°C	0805	ROHS3	1
08056D105KAT2A	KYOCERA AVX	1 µF	±10%	6.3V	X5R	-55°C ~ 85°C	0805	ROHS3	1
0805ZD105KAT2A	KYOCERA AVX	1 µF	±10%	10V	X5R	-55°C ~ 85°C	0805	ROHS3	1
KGM21AR51C105KU	KYOCERA AVX	1 µF	±10%	16V	X5R	-55°C ~ 85°C	0805	ROHS3	1
KGM21AR51C105MU	KYOCERA AVX	1 µF	±20%	16V	X5R	-55°C ~ 85°C	0805	ROHS3	1
KGM21AR51E105KU	KYOCERA AVX	1 µF	±10%	25V	X5R	-55°C ~ 85°C	0805	ROHS3	1
KGM21AR51E105MU	KYOCERA AVX	1 µF	±20%	25V	X5R	-55°C ~ 85°C	0805	ROHS3	1
KGM21AR51H105KU	KYOCERA AVX	1 µF	±10%	50V	X5R	-55°C ~ 85°C	0805	ROHS3	1
KGM21AR51H105MU	KYOCERA AVX	1 µF	±20%	50V	X5R	-55°C ~ 85°C	0805	ROHS3	1
KGM21AR71A105JU	KYOCERA AVX	1 µF	±5%	10V	X7R	-55°C ~ 125°C	0805	ROHS3	1

Engineering Selection Recommendations

All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility with the original 08056D105MAT2A specification.

Direct Substitutes (Same Voltage Rating): The 08056D105KAT2A provides tighter tolerance (±10%) at the same 6.3V rating with identical X5R temperature coefficient. The 08056C105MAT2A maintains ±20% tolerance but extends operating temperature to 125°C through X7R temperature coefficient selection.

Voltage Upgrade Substitutes: Parts rated at 10V, 16V, 25V, and 50V are direct functional substitutes when circuit design permits higher voltage components. These provide additional voltage margin and are pin-compatible within the 0805 package footprint.

Tolerance Variants: ±10% tolerance parts (08056D105KAT2A, 0805ZD105KAT2A, KGM series with K suffix) and ±5% tolerance parts (KGM21AR71A105JU) are available for applications requiring tighter capacitance control than the original ±20% specification.

Temperature Coefficient Selection: X7R variants (08056C105MAT2A, KGM21AR71A105JU) extend the upper operating temperature limit to 125°C while maintaining equivalent electrical performance across the standard -55°C to 85°C range.

Frequently Asked Questions (FAQ)

Q: Can I substitute a higher voltage rated capacitor for the 08056D105MAT2A?

A: Yes. Higher voltage ratings (10V, 16V, 25V, 50V) are direct substitutes. The capacitor will function identically in circuits designed for 6.3V operation, with additional voltage margin available for circuit protection.

Q: What is the difference between X5R and X7R temperature coefficients?

A: X5R maintains capacitance within ±15% across -55°C to 85°C. X7R maintains capacitance within ±15% across -55°C to 125°C. Both coefficients provide equivalent performance within the standard operating range; X7R extends the upper temperature limit.

Q: Are ±10% and ±5% tolerance parts direct replacements?

A: Yes. Tighter tolerance grades (±10%, ±5%) are direct substitutes for ±20% applications. They provide improved capacitance accuracy without changing electrical function or package compatibility.

Q: Does the 0805 package dimension remain constant across all substitute parts?

A: Yes. All substitute parts use the 0805 (2012 Metric) package with identical footprint dimensions (0.079" L x 0.049" W / 2.01mm x 1.25mm). Physical board layout compatibility is maintained across all listed substitutes.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the original 08056D105MAT2A.

Q: What inventory levels are available for substitute parts?

A: Inventory quantities vary by part number. KGM21AR51C105KU (16V, ±10%) has the highest availability at 232,844 pieces. Specific inventory levels are provided in the parameter comparison table.

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