08055C331KAJ2A Equivalent & Substitute Parts

Part Overview

The 08055C331KAJ2A is a 330 pF ±10% 50V ceramic capacitor manufactured by KYOCERA AVX with X7R temperature coefficient in 0805 (2012 Metric) surface mount package. This component is classified as Active product status with 872 pieces currently in stock. The part is RoHS non-compliant and REACH Affected.

Substitute parts are identified when electrical parameters (capacitance, voltage rating, tolerance, temperature coefficient) and mechanical specifications (package, size, mounting type) align with application requirements. Alternative sources and upgraded compliance versions are available from KYOCERA AVX and other manufacturers.

Key Parameters

Parameter	Value
Capacitance	330 pF
Tolerance	±10%
Voltage - Rated	50V
Temperature Coefficient	X7R
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCC
Operating Temperature	-55°C ~ 125°C
Size / Dimension	0.079" L x 0.049" W (2.01mm x 1.25mm)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts are organized into three categories based on electrical and mechanical compatibility:

Upgrade Category (KYOCERA AVX KGM Series - C0G/NP0 Temperature Coefficient): Parts KGM21BCG1H331FT, KGM21BCG1H331KT, KGM21BCG2A331FT, KGM21BCG2A331GT, and KGM21BCG2A331KT maintain 330 pF capacitance and 0805 package but feature C0G/NP0 temperature coefficient with improved tolerance (±1% to ±2%) and ROHS3 compliance. Voltage ratings range from 50V to 100V. These parts are suitable where enhanced stability and regulatory compliance are required.

Upgrade Category (KYOCERA AVX KGM Series - X7R Temperature Coefficient): Parts KGM21NR71H331JT and KGM21NR71H331KT maintain X7R temperature coefficient, 330 pF capacitance, 50V rating, and 0805 package with ROHS3 compliance and improved tolerance specifications (±5% and ±10% respectively).

Direct Substitute Category (Alternative Manufacturers): Parts 0805B331K500CT (Walsin Technology Corporation), C0805C331K5RAC7800 (KEMET), and CC0805KRX7R9BB331 (YAGEO) provide equivalent electrical specifications: 330 pF ±10%, 50V, X7R temperature coefficient, 0805 package, with ROHS3 compliance and REACH Unaffected status.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Package	RoHS Status	REACH Status	Inventory
08055C331KAJ2A	KYOCERA AVX	330 pF	±10%	50V	X7R	0805	Non-compliant	REACH Affected	872
KGM21BCG1H331FT	KYOCERA AVX	330 pF	±1%	50V	C0G/NP0	0805	ROHS3 Compliant	REACH Unaffected	10079
KGM21BCG1H331KT	KYOCERA AVX	330 pF	±10%	50V	C0G/NP0	0805	ROHS3 Compliant	REACH Unaffected	16085
KGM21BCG2A331FT	KYOCERA AVX	330 pF	±1%	100V	C0G/NP0	0805	ROHS3 Compliant	REACH Unaffected	8798
KGM21BCG2A331GT	KYOCERA AVX	330 pF	±2%	100V	C0G/NP0	0805	ROHS3 Compliant	REACH Unaffected	9318
KGM21BCG2A331KT	KYOCERA AVX	330 pF	±10%	100V	C0G/NP0	0805	ROHS3 Compliant	REACH Unaffected	1070
KGM21NR71H331JT	KYOCERA AVX	330 pF	±5%	50V	X7R	0805	ROHS3 Compliant	REACH Unaffected	7987
KGM21NR71H331KT	KYOCERA AVX	330 pF	±10%	50V	X7R	0805	ROHS3 Compliant	REACH Unaffected	18564
0805B331K500CT	Walsin Technology Corporation	330 pF	±10%	50V	X7R	0805	ROHS3 Compliant	REACH Unaffected	9710
C0805C331K5RAC7800	KEMET	330 pF	±10%	50V	X7R	0805	ROHS3 Compliant	REACH Unaffected	61700
CC0805KRX7R9BB331	YAGEO	330 pF	±10%	50V	X7R	0805	ROHS3 Compliant	REACH Unaffected	3460

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Specifications): KGM21NR71H331KT, 0805B331K500CT, C0805C331K5RAC7800, and CC0805KRX7R9BB331 provide equivalent 330 pF ±10% 50V X7R specifications in 0805 package. All direct substitutes are ROHS3 Compliant and REACH Unaffected, addressing regulatory compliance gaps in the original part.

For Enhanced Stability (C0G/NP0 Temperature Coefficient): KGM21BCG1H331KT matches tolerance and voltage but provides superior temperature stability through C0G/NP0 coefficient. KGM21BCG1H331FT offers tighter ±1% tolerance at the same 50V rating. Both are KYOCERA AVX products with ROHS3 compliance.

For Higher Voltage Margin: KGM21BCG2A331KT, KGM21BCG2A331GT, and KGM21BCG2A331FT provide 100V rating with C0G/NP0 coefficient, suitable for applications requiring increased voltage headroom while maintaining 330 pF capacitance and 0805 package compatibility.

For Improved Tolerance: KGM21NR71H331JT provides ±5% tolerance with X7R coefficient and 50V rating, offering a middle ground between the original ±10% specification and tighter tolerance alternatives.

Frequently Asked Questions (FAQ)

Q: Can KGM21BCG1H331KT replace 08055C331KAJ2A directly? A: Yes, electrically and mechanically. Both are 330 pF ±10% 50V in 0805 package. The KGM part features C0G/NP0 temperature coefficient instead of X7R, providing superior temperature stability. ROHS3 compliance is an additional benefit.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients? A: X7R allows ±15% capacitance change across -55°C to 125°C operating range. C0G/NP0 restricts change to ±30 ppm/°C, approximately ±0.3% across the same range. C0G/NP0 is preferred for precision applications.

Q: Are KEMET C0805C331K5RAC7800 and YAGEO CC0805KRX7R9BB331 compatible with the original design? A: Yes. Both match 330 pF ±10% 50V X7R specifications and 0805 package. Minor dimensional variations exist (thickness: 0.88mm vs 0.90mm vs 0.94mm), but these fall within standard PCB assembly tolerances.

Q: Why do some substitutes have 100V rating instead of 50V? A: Higher voltage-rated capacitors provide increased safety margin and reliability in applications subject to voltage transients. 100V parts are physically compatible with 50V designs and can be used as upgrades.

Q: What does ROHS3 Compliant mean compared to the original RoHS non-compliant status? A: ROHS3 Compliant indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. This is mandatory for many markets and applications.

Q: Are there inventory considerations when selecting substitutes? A: Yes. C0805C331K5RAC7800 (KEMET) has the highest inventory at 61,700 pieces. KGM21NR71H331KT (KYOCERA AVX) has 18,564 pieces. Availability may influence procurement timelines for high-volume production.

Q: Can I use KGM21BCG2A331FT (100V, ±1%) in place of the original 50V part? A: Yes. The higher voltage rating and tighter tolerance are compatible with any 50V design. This represents an upgrade in performance and reliability margins.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message