08055C103MAT9A Equivalent & Substitute Parts

Part Overview

The 08055C103MAT9A is a 10000 pF ceramic capacitor manufactured by KYOCERA AVX, rated at 50V with X7R temperature coefficient in 0805 (2012 Metric) surface mount package. This part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent capacitance and package specifications are maintained while voltage rating, tolerance, or series designation may vary to meet specific application requirements or inventory availability.

Key Parameters

Parameter	Value
Manufacturer Part Number	08055C103MAT9A
Manufacturer	KYOCERA AVX
Capacitance	10000 pF
Voltage - Rated	50V
Tolerance	±20%
Temperature Coefficient	X7R
Package / Case	0805 (2012 Metric)
Operating Temperature	-55°C ~ 125°C
Mounting Type	Surface Mount, MLCC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 08055C103MAT9A are qualified based on the following criteria:

Fixed Parameters (Must Match):

Capacitance: 10000 pF
Temperature Coefficient: X7R
Package / Case: 0805 (2012 Metric)
Mounting Type: Surface Mount, MLCC
Operating Temperature Range: -55°C ~ 125°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameters (Allowed to Differ):

Voltage Rating: 50V, 100V, 200V, or 250V (higher voltage ratings are electrically compatible in 50V applications)
Tolerance: ±5%, ±10%, or ±20% (tighter tolerances are compatible with ±20% requirement)
Manufacturer Series: Original AVX series or KGM series variants
Packaging Format: Bulk or Tape & Reel (TR)

Substitution is valid when the substitute part maintains identical capacitance, package, and temperature characteristics while offering equal or superior voltage rating and tolerance specifications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Temp Coeff	Package	Thickness	RoHS
08055C103MAT9A	KYOCERA AVX	10000 pF	50V	±20%	X7R	0805	0.037"	ROHS3
0805PC103KAT2A	KYOCERA AVX	10000 pF	250V	±10%	X7R	0805	0.051"	ROHS3
KGM21AR72D103JU	KYOCERA AVX	10000 pF	200V	±5%	X7R	0805	0.057"	ROHS3
KGM21AR72D103KL	KYOCERA AVX	10000 pF	200V	±10%	X7R	0805	0.057"	ROHS3
KGM21AR72D103KU	KYOCERA AVX	10000 pF	200V	±10%	X7R	0805	0.057"	ROHS3
KGM21AR72D103MU	KYOCERA AVX	10000 pF	200V	±20%	X7R	0805	0.057"	ROHS3
KGM21NR71H103KT	KYOCERA AVX	10000 pF	50V	±10%	X7R	0805	0.039"	ROHS3
KGM21NR72A103JT	KYOCERA AVX	10000 pF	100V	±5%	X7R	0805	0.039"	ROHS3
KGM21NR72A103KM	KYOCERA AVX	10000 pF	100V	±10%	X7R	0805	0.039"	ROHS3
KGM21NR72A103KT	KYOCERA AVX	10000 pF	100V	±10%	X7R	0805	0.039"	ROHS3
KGM21NR72A103MT	KYOCERA AVX	10000 pF	100V	±20%	X7R	0805	0.039"	ROHS3

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance identical to the primary part 08055C103MAT9A. Selection among substitutes depends on application voltage requirements and tolerance specifications:

For 50V Applications: KGM21NR71H103KT provides ±10% tolerance with reduced thickness (0.039" vs 0.037"), offering improved tolerance at equivalent voltage rating.

For Higher Voltage Margin: Parts rated 100V, 200V, or 250V provide increased voltage headroom while maintaining 10000 pF capacitance and X7R stability. These are electrically compatible in 50V circuits and support design robustness.

For Tighter Tolerance Requirements: KGM21AR72D103JU (±5% at 200V) and KGM21NR72A103JT (±5% at 100V) deliver superior tolerance specifications compared to the ±20% original specification.

For Inventory Availability: KGM21NR71H103KT (437,140 units), KGM21NR72A103KT (210,739 units), and KGM21AR72D103KU (81,137 units) offer substantial stock levels for high-volume applications.

All substitute parts are manufactured by KYOCERA AVX, maintain identical operating temperature range (-55°C to 125°C), and carry MSL 1 (Unlimited) moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can I use a 100V or 200V rated capacitor in a 50V circuit? A: Yes. Higher voltage-rated capacitors are electrically compatible in lower voltage applications. The voltage rating indicates the maximum safe operating voltage; operating below this rating presents no electrical incompatibility.

Q: What is the difference between ±5%, ±10%, and ±20% tolerance? A: Tolerance specifies the allowable deviation from the nominal 10000 pF capacitance value. ±20% allows 8000-12000 pF; ±10% allows 9000-11000 pF; ±5% allows 9500-10500 pF. Tighter tolerances are suitable for precision applications; looser tolerances are acceptable for general-purpose filtering.

Q: Are KGM series parts equivalent to the original AVX series? A: Yes. KGM series represents KYOCERA AVX's X7R ceramic capacitor line. Both original and KGM series parts meet identical electrical and mechanical specifications for the stated parameters and are interchangeable when capacitance, voltage, package, and temperature coefficient match.

Q: Does thickness variation affect PCB assembly? A: Thickness differences (0.037" to 0.057") are within standard 0805 package tolerance and do not affect PCB assembly compatibility. Verify clearance in your specific board design if height-constrained applications exist.

Q: What does ROHS3 compliance mean? A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance certifies that the part contains no lead, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, or bis(2-ethylhexyl) phthalate above specified thresholds, meeting EU environmental regulations.

Q: Can I substitute parts with different packaging (Bulk vs Tape & Reel)? A: Packaging format (Bulk or Tape & Reel) affects handling and assembly logistics but does not alter electrical or mechanical compatibility. Select based on your manufacturing process requirements.

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