CGA2B2X8R2A331M050BA Equivalent & Substitute Parts

Part Overview

The CGA2B2X8R2A331M050BA is a 330 pF ceramic capacitor manufactured by TDK Corporation, rated for 100V with X8R temperature coefficient and 0402 (1005 Metric) package. This part is classified as Not For New Designs, indicating it has been superseded in TDK's product line. The X8R temperature coefficient provides ±15% capacitance variation across the -55°C to 150°C operating range, making it suitable for automotive applications requiring high-temperature stability. Equivalent and substitute parts are necessary for applications where the original part is no longer in production or where design improvements offer better performance characteristics.

Key Parameters

Parameter	Value
Capacitance	330 pF
Voltage Rating	100V
Temperature Coefficient	X8R
Package	0402 (1005 Metric)
Tolerance	±20%
Operating Temperature Range	-55°C to 150°C
Mounting Type	Surface Mount, MLCC
AEC-Q200 Rating	Yes
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the CGA2B2X8R2A331M050BA is determined by the following critical parameters: capacitance value (330 pF), voltage rating (100V), package type (0402), operating temperature range (-55°C to 150°C), and automotive compliance (AEC-Q200). Temperature coefficient and tolerance are secondary parameters that define substitution categories.

The substitute parts are grouped into two categories:

Direct Substitute (Temperature Coefficient Variation): CGA2B2NP02A331J050BA offers the same capacitance, voltage, and package with improved tolerance (±5% versus ±20%) and C0G/NP0 temperature coefficient, providing superior temperature stability. This part is Active in TDK's product line.

Upgrade Substitutes (Tolerance Improvement): CGA2B2X8R2A331K050BA (TDK) and VJ0402H331KXBAC31 (Vishay Vitramon) maintain X8R temperature coefficient with improved tolerance (±10% versus ±20%). The Vishay part is Active status, while the TDK variant is Not For New Designs. Both meet AEC-Q200 automotive requirements and maintain identical package and voltage specifications.

Parameter Comparison

Parameter	CGA2B2X8R2A331M050BA	CGA2B2NP02A331J050BA	CGA2B2X8R2A331K050BA	VJ0402H331KXBAC31
Manufacturer	TDK Corporation	TDK Corporation	TDK Corporation	Vishay Vitramon
Capacitance	330 pF	330 pF	330 pF	330 pF
Voltage Rating	100V	100V	100V	100V
Tolerance	±20%	±5%	±10%	±10%
Temperature Coefficient	X8R	C0G/NP0	X8R	X8R
Operating Temperature	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
Package	0402 (1005 Metric)	0402 (1005 Metric)	0402 (1005 Metric)	0402 (1005 Metric)
Thickness (Max)	0.022" (0.55mm)	0.022" (0.55mm)	0.022" (0.55mm)	0.024" (0.60mm)
AEC-Q200	Yes	Yes	Yes	Yes
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Not For New Designs	Active	Not For New Designs	Active

Engineering Selection Recommendations

For new designs, CGA2B2NP02A331J050BA is the preferred substitute, offering Active product status from TDK with superior tolerance specification (±5%) and C0G/NP0 temperature coefficient, which provides tighter capacitance stability across the automotive temperature range. This part maintains full AEC-Q200 compliance and ROHS3 certification.

For applications requiring X8R temperature coefficient characteristics, VJ0402H331KXBAC31 from Vishay Vitramon is the recommended choice due to its Active product status and ±10% tolerance improvement over the original part. This part meets all automotive compliance requirements and maintains identical electrical and mechanical specifications except for a 0.002" (0.05mm) maximum thickness increase, which is negligible for 0402 package applications.

CGA2B2X8R2A331K050BA from TDK is functionally equivalent but carries Not For New Designs status, making it suitable only for legacy system maintenance or replacement applications where design continuity is required.

All substitute parts maintain identical capacitance, voltage rating, package type, operating temperature range, and automotive certifications as the original part.

Frequently Asked Questions (FAQ)

Q: Can CGA2B2NP02A331J050BA replace CGA2B2X8R2A331M050BA in existing designs?

A: Yes. Both parts share identical capacitance (330 pF), voltage rating (100V), package (0402), and operating temperature range (-55°C to 150°C). The primary difference is temperature coefficient: C0G/NP0 versus X8R. C0G/NP0 provides superior temperature stability (±0.3% per °C maximum) compared to X8R (±15% across temperature range). This substitution improves performance in temperature-sensitive applications.

Q: What is the thickness difference between VJ0402H331KXBAC31 and the original part?

A: VJ0402H331KXBAC31 has a maximum thickness of 0.024" (0.60mm) compared to 0.022" (0.55mm) for CGA2B2X8R2A331M050BA. This 0.002" (0.05mm) difference is within typical PCB assembly tolerances for 0402 packages and does not affect functionality or compatibility.

Q: Are all substitute parts AEC-Q200 rated?

A: Yes. All substitute parts listed carry AEC-Q200 automotive qualification, meeting the same reliability and quality standards as the original part.

Q: Which substitute part should be used for new automotive designs?

A: VJ0402H331KXBAC31 is recommended for new designs, as it maintains Active product status and X8R temperature coefficient with improved ±10% tolerance. CGA2B2NP02A331J050BA is an alternative if C0G/NP0 temperature coefficient characteristics are required.

Q: Do all parts have the same moisture sensitivity level?

A: Yes. All parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

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