KYOCERA AVX 08055C103KAT2P Ceramic Capacitor 10000pF 50V X7R 0805 Equivalent & Substitute Parts

Part Overview

The KYOCERA AVX 08055C103KAT2P is a 10000 pF ceramic capacitor rated at 50V with X7R temperature coefficient in 0805 (2012 Metric) surface mount package. This multilayer ceramic capacitor (MLCC) is designed for general purpose applications with operating temperature range of -55°C to 125°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified when electrical specifications (capacitance, voltage rating, tolerance, temperature coefficient) and mechanical parameters (package size, mounting type) align with application requirements.

Key Parameters

Parameter	Value
Capacitance	10000 pF
Voltage Rating	50V
Tolerance	±10%
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCC
Physical Dimensions	0.079" L x 0.049" W (2.01mm x 1.25mm)
Thickness	0.037" (0.94mm)
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 08055C103KAT2P are categorized based on strict adherence to the following electrical and mechanical parameters:

Direct Equivalents maintain identical specifications: 10000 pF capacitance, 50V voltage rating, ±10% tolerance, X7R temperature coefficient, and 0805 package size. These parts are interchangeable in applications where the original part number is specified.

Voltage-Upgraded Substitutes increase the rated voltage to 250V while maintaining all other electrical parameters (10000 pF, ±10% tolerance, X7R, 0805 package). These are suitable for applications requiring higher voltage margin or derating. Physical thickness increases to 0.051" (1.30mm) due to higher voltage rating.

Tolerance-Upgraded Substitutes reduce tolerance to ±5% while increasing voltage rating to 200V. These provide tighter capacitance tolerance with moderate voltage upgrade. Physical thickness increases to 0.057" (1.45mm).

Application-Specific Variants include automotive-rated parts (AEC-Q200 certified) and soft termination variants (FLEXITERM™ Flexisafe series) designed for boardflex-sensitive applications. These maintain 50V rating and 0805 package but add specialized features and certifications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Temp Coeff	Package	Thickness	RoHS Status	Certifications	Special Features
08055C103KAT2P	KYOCERA AVX	10000 pF	50V	±10%	X7R	0805	0.037"	ROHS3	—	—
LD055C103KAB2A	KYOCERA AVX	10000 pF	50V	±10%	X7R	0805	0.037"	Non-compliant	—	Direct equivalent
0805PC103KAT1A	KYOCERA AVX	10000 pF	250V	±10%	X7R	0805	0.051"	ROHS3	—	Voltage upgrade
0805PC103KAT2A	KYOCERA AVX	10000 pF	250V	±10%	X7R	0805	0.051"	ROHS3	—	Voltage upgrade
FS055C103KAZ2A	KYOCERA AVX	10000 pF	50V	±10%	X7R	0805	0.037"	ROHS3	AEC-Q200	Soft termination, automotive
KAM21BR71H103KM	KYOCERA AVX	10000 pF	50V	±10%	X7R	0805	0.037"	ROHS3	AEC-Q200	Automotive rated
KAM21BR71H103KT	KYOCERA AVX	10000 pF	50V	±10%	X7R	0805	0.037"	ROHS3	AEC-Q200	Automotive rated
KAS21BR71H103KT	KYOCERA AVX	10000 pF	50V	±10%	X7R	0805	0.037"	ROHS3	AEC-Q200	Soft termination, automotive
KGM21AR72D103JU	KYOCERA AVX	10000 pF	200V	±5%	X7R	0805	0.057"	ROHS3	—	Voltage and tolerance upgrade
KGM21AR72D103KL	KYOCERA AVX	10000 pF	200V	±10%	X7R	0805	0.057"	ROHS3	—	Voltage upgrade
KGM21AR72D103KU	KYOCERA AVX	10000 pF	200V	±10%	X7R	0805	0.057"	ROHS3	—	Voltage upgrade

Engineering Selection Recommendations

For Direct Replacement: Use LD055C103KAB2A only if RoHS compliance is not required. This part maintains identical electrical and mechanical specifications but carries RoHS non-compliant status and REACH-affected designation.

For RoHS3 Compliant Direct Equivalents: FS055C103KAZ2A, KAM21BR71H103KM, KAM21BR71H103KT, and KAS21BR71H103KT all maintain the 50V rating and 0805 package with ROHS3 compliance. FS055C103KAZ2A and KAS21BR71H103KT include soft termination technology and AEC-Q200 automotive certification, suitable for boardflex-sensitive and automotive applications.

For Voltage-Upgraded Applications: 0805PC103KAT1A and 0805PC103KAT2A provide 250V rating with ROHS3 compliance. Physical thickness increases to 0.051" (1.30mm), requiring verification of PCB layout clearance. These are suitable for applications requiring higher voltage derating or operating in elevated voltage environments.

For Tighter Tolerance Requirements: KGM21AR72D103JU offers ±5% tolerance at 200V rating with 0.057" (1.45mm) thickness. KGM21AR72D103KL and KGM21AR72D103KU provide ±10% tolerance at 200V with the same increased thickness. All three carry ROHS3 compliance.

For Automotive Applications: KAM21BR71H103KM, KAM21BR71H103KT, FS055C103KAZ2A, and KAS21BR71H103KT are AEC-Q200 certified. These maintain 50V rating and 0.037" thickness, ensuring mechanical compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can LD055C103KAB2A be used as a direct replacement for 08055C103KAT2P?

A: Electrically and mechanically, yes. LD055C103KAB2A maintains identical capacitance (10000 pF), voltage (50V), tolerance (±10%), temperature coefficient (X7R), and package (0805). However, it is RoHS non-compliant and REACH-affected, whereas the original part is ROHS3 compliant and REACH unaffected. Use only if regulatory compliance is not a requirement.

Q: What is the difference between the 50V and 250V variants?

A: The 250V variants (0805PC103KAT1A and 0805PC103KAT2A) provide higher voltage rating for applications requiring greater voltage margin or derating. Physical thickness increases from 0.037" to 0.051" due to the higher voltage rating. Capacitance, tolerance, and temperature coefficient remain identical. Verify PCB layout accommodates the increased thickness.

Q: Are automotive-rated parts (AEC-Q200) interchangeable with general purpose parts?

A: Electrically and mechanically, automotive-rated parts (KAM21BR71H103KM, KAM21BR71H103KT, FS055C103KAZ2A, KAS21BR71H103KT) are fully interchangeable with the original part. They maintain identical 50V rating, ±10% tolerance, X7R coefficient, and 0805 package. AEC-Q200 certification indicates compliance with automotive reliability standards and is beneficial for automotive applications but does not restrict use in general purpose applications.

Q: What does soft termination (FLEXITERM™ Flexisafe) mean?

A: Soft termination is a specialized termination technology designed to reduce mechanical stress on component leads during PCB flexing. FS055C103KAZ2A and KAS21BR71H103KT incorporate this feature and are rated for boardflex-sensitive applications. For standard rigid PCB applications, this feature is not required but does not prevent use.

Q: Can KGM21AR72D103JU (±5% tolerance) be used instead of the ±10% original part?

A: Yes. Tighter tolerance (±5%) is a performance upgrade and is fully compatible. However, voltage rating increases to 200V and physical thickness increases to 0.057" (1.45mm). Verify PCB layout accommodates the increased thickness and confirm that the higher voltage rating does not conflict with circuit design.

Q: What is the impact of increased thickness on PCB assembly?

A: Voltage-upgraded parts (250V variants at 0.051" thickness) and tolerance-upgraded parts (200V variants at 0.057" thickness) have greater thickness than the original 0.037" part. Verify PCB layout, solder mask clearance, and component placement do not create mechanical interference. Reflow profile validation may be necessary for thicker components.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts listed are available in Tape & Reel (TR) packaging. The original part (08055C103KAT2P) packaging format is not specified in the provided data. Confirm packaging requirements for your procurement and assembly process.

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