08055C301KAT2A Equivalent & Substitute Parts

Part Overview

The 08055C301KAT2A is a 300 pF ±10% 50V ceramic capacitor manufactured by KYOCERA AVX with X7R temperature coefficient in 0805 (2012 Metric) surface mount package. This part is Active status and ROHS3 compliant. Equivalent and substitute parts are identified based on matching capacitance value, package size, mounting type, and operating temperature range, with allowable variations in voltage rating, tolerance, and temperature coefficient according to circuit design requirements.

Key Parameters

Parameter	Value
Capacitance	300 pF
Tolerance	±10%
Voltage - Rated	50V
Temperature Coefficient	X7R
Operating Temperature	-55°C ~ 125°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 08055C301KAT2A is determined by the following criteria:

Critical Parameters (Must Match):

Capacitance: 300 pF
Package / Case: 0805 (2012 Metric)
Mounting Type: Surface Mount, MLCC
Operating Temperature Range: -55°C ~ 125°C

Allowable Variations:

Voltage Rating: Equal to or greater than 50V
Tolerance: ±10% or tighter (±5%, ±2%, ±1%)
Temperature Coefficient: X7R, C0G/NP0 (both acceptable for general purpose applications)
Manufacturer: Different manufacturers permitted if electrical and mechanical specifications align

Substitute parts are grouped into three categories: Upgrade parts with improved tolerance and/or voltage rating, Direct equivalent from alternative manufacturer, and MFR Recommended alternative.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Package	RoHS Status	Inventory
08055C301KAT2A	KYOCERA AVX	300 pF	±10%	50V	X7R	0805	ROHS3	887 Pcs
08051A301FAT2A	KYOCERA AVX	300 pF	±1%	100V	C0G, NP0	0805	ROHS3	94072 Pcs
08055A301FAT2A	KYOCERA AVX	300 pF	±1%	50V	C0G, NP0	0805	ROHS3	3204 Pcs
08055A301JAT2A	KYOCERA AVX	300 pF	±5%	50V	C0G, NP0	0805	ROHS3	10539 Pcs
CC0805KRX7R9BB301	YAGEO	300 pF	±10%	50V	X7R	0805	ROHS3	3923 Pcs
C0805C301GBGAC7800	KEMET	300 pF	±2%	630V	C0G, NP0	0805	ROHS3	2914 Pcs
C0805C301J1GAC7800	KEMET	300 pF	±5%	100V	C0G, NP0	0805	ROHS3	3711 Pcs
C0805C301J5GAC7800	KEMET	300 pF	±5%	50V	C0G, NP0	0805	ROHS3	4836 Pcs
C0805C301K5GAC7800	KEMET	300 pF	±10%	50V	C0G, NP0	0805	ROHS3	4738 Pcs
CC0805JRNPO9BN301	YAGEO	300 pF	±5%	50V	C0G, NP0	0805	ROHS3	1374 Pcs

Engineering Selection Recommendations

Direct Equivalent (Same Specifications): CC0805KRX7R9BB301 from YAGEO provides identical electrical and mechanical specifications to the 08055C301KAT2A, with matching 300 pF capacitance, ±10% tolerance, 50V rating, and X7R temperature coefficient. Both parts are ROHS3 compliant and suitable for direct substitution in existing designs.

Upgrade Options (Improved Performance): Parts with tighter tolerance (±5% or ±1%) or higher voltage rating provide enhanced performance margins. 08055A301FAT2A offers ±1% tolerance at 50V with C0G/NP0 coefficient. 08051A301FAT2A provides ±1% tolerance with 100V rating. C0805C301J5GAC7800 and C0805C301K5GAC7800 from KEMET offer ±5% and ±10% tolerance respectively at 50V with C0G/NP0 coefficient. C0805C301GBGAC7800 provides maximum voltage margin at 630V with ±2% tolerance.

Temperature Coefficient Consideration: X7R and C0G/NP0 temperature coefficients are both acceptable for general purpose applications. X7R exhibits greater capacitance variation across temperature but provides higher volumetric efficiency. C0G/NP0 offers superior stability with minimal capacitance change over temperature range. Selection depends on circuit tolerance requirements.

Availability and Supply: All substitute parts maintain Active product status and ROHS3 compliance. Inventory levels vary; 08051A301FAT2A shows highest availability at 94,072 pieces.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher voltage rating than the original 08055C301KAT2A? A: Yes. A capacitor rated for higher voltage (100V, 630V) is electrically compatible in a 50V circuit. Higher voltage rating provides additional safety margin and does not degrade circuit performance.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients? A: X7R allows ±15% capacitance change from -55°C to 125°C. C0G/NP0 maintains capacitance within ±0.3% to ±0.5% across the same temperature range. C0G/NP0 is preferred for precision applications; X7R is acceptable for general purpose circuits where tolerance is ±10% or wider.

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

Q: What does ±10% tolerance mean for a 300 pF capacitor? A: ±10% tolerance indicates the actual capacitance value will be between 270 pF and 330 pF. Tighter tolerances (±5%, ±2%, ±1%) provide narrower capacitance ranges for applications requiring higher precision.

Q: Is ROHS3 compliance maintained across all substitute parts? A: Yes. All listed substitute parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the original part's environmental and regulatory status.

Q: Can I substitute a part with ±1% tolerance for the original ±10% part? A: Yes. Tighter tolerance is a performance upgrade. A ±1% part will perform in any application designed for ±10% tolerance, with improved capacitance accuracy.

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