CGA2B2X8R1H331M050BA Equivalent & Substitute Parts

Part Overview

The CGA2B2X8R1H331M050BA is a 330 pF ±20% 50V ceramic capacitor in 0402 (1005 Metric) package manufactured by TDK Corporation. This part features X8R temperature coefficient and is rated for automotive applications with AEC-Q200 compliance. The product status is Not For New Designs, making identification of suitable alternatives essential for ongoing production and design updates.

Key Parameters

Parameter	Value
Capacitance	330 pF
Tolerance	±20%
Voltage - Rated	50V
Temperature Coefficient	X8R
Operating Temperature Range	-55°C ~ 150°C
Package / Case	0402 (1005 Metric)
Mounting Type	Surface Mount, MLCC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
AEC-Q200 Rating	Yes

Substitute Part Grouping Explanation

Substitution eligibility for the CGA2B2X8R1H331M050BA is determined by the following criteria:

Mandatory Parameters (Must Match):

Capacitance: 330 pF
Package / Case: 0402 (1005 Metric)
Mounting Type: Surface Mount, MLCC
Operating Temperature Range: -55°C ~ 150°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
AEC-Q200 Automotive Rating: Yes

Allowable Variations:

Tolerance: Can be tighter (±5% or ±10%) than the original ±20%
Voltage - Rated: Can be equal or higher than 50V
Temperature Coefficient: X8R or C0G/NP0 are both acceptable
Thickness: Minor variations within mechanical constraints

Substitute Categories:

Direct Equivalent (Same Voltage): CGA2B2NP01H331J050BA — Tighter tolerance, same voltage, different temperature coefficient
Upgraded Tolerance (Same Voltage): CGA2B2X8R1H331K050BA — Tighter tolerance, same voltage and temperature coefficient
Upgraded Voltage (Higher Rating): CGA2B2X8R2A331K050BA, CGA2B2NP02A331J050BA, VJ0402H331KXBAC31 — Higher voltage rating with improved tolerance

Parameter Comparison

Parameter	CGA2B2X8R1H331M050BA (Main)	CGA2B2NP01H331J050BA	CGA2B2X8R1H331K050BA	CGA2B2X8R2A331K050BA	CGA2B2NP02A331J050BA	VJ0402H331KXBAC31
Manufacturer	TDK Corporation	TDK Corporation	TDK Corporation	TDK Corporation	TDK Corporation	Vishay Vitramon
Capacitance	330 pF	330 pF	330 pF	330 pF	330 pF	330 pF
Tolerance	±20%	±5%	±10%	±10%	±5%	±10%
Voltage - Rated	50V	50V	50V	100V	100V	100V
Temperature Coefficient	X8R	C0G, NP0	X8R	X8R	C0G, NP0	X8R
Operating Temperature	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Package / Case	0402 (1005 Metric)	0402 (1005 Metric)	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)	0.022" (0.55mm)	0.022" (0.55mm)	0.024" (0.60mm)
Product Status	Not For New Designs	Active	Not For New Designs	Not For New Designs	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
AEC-Q200 Rating	Yes	Yes	Yes	Yes	Yes	Yes
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Performance): CGA2B2X8R1H331K050BA provides tighter tolerance (±10% vs ±20%) while maintaining the same voltage rating, temperature coefficient, and package. This part remains Not For New Designs but offers improved capacitance accuracy.

For Active Product Status with Same Voltage: CGA2B2NP01H331J050BA is the only Active product at 50V rating. It features C0G/NP0 temperature coefficient with ±5% tolerance, providing superior stability compared to the original X8R specification.

For Upgraded Voltage Rating (100V): Three Active or higher-status alternatives are available at 100V:

CGA2B2NP02A331J050BA (TDK, Active, C0G/NP0, ±5%) — Recommended for new designs requiring maximum stability
VJ0402H331KXBAC31 (Vishay Vitramon, Active, X8R, ±10%) — Cross-manufacturer option with 0.024" maximum thickness
CGA2B2X8R2A331K050BA (TDK, Not For New Designs, X8R, ±10%) — Same temperature coefficient as original

All substitute parts maintain AEC-Q200 automotive compliance, ROHS3 compliance, and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can CGA2B2NP01H331J050BA replace CGA2B2X8R1H331M050BA in existing designs? A: Yes. Both parts share identical capacitance (330 pF), voltage rating (50V), package (0402), and operating temperature range (-55°C ~ 150°C). The substitute offers tighter tolerance (±5% vs ±20%) and different temperature coefficient (C0G/NP0 vs X8R). Verify circuit requirements for temperature coefficient compatibility before substitution.

Q: What is the difference between X8R and C0G/NP0 temperature coefficients? A: X8R provides ±15% capacitance change across the operating temperature range. C0G/NP0 provides ±30 ppm/°C, resulting in minimal capacitance variation. C0G/NP0 is preferred for precision applications; X8R is suitable for general-purpose filtering.

Q: Why are 100V-rated parts listed as substitutes for a 50V application? A: Higher voltage-rated capacitors are electrically compatible with lower voltage circuits. They provide additional design margin and reliability. No circuit modification is required. Physical dimensions remain identical (0402 package).

Q: Is VJ0402H331KXBAC31 compatible with existing PCB layouts? A: Yes. The Vishay part uses the same 0402 (1005 Metric) package footprint. Maximum thickness is 0.024" (0.60mm) versus 0.022" (0.55mm) for TDK parts. Verify PCB assembly clearance if height-constrained applications exist.

Q: Which substitute is recommended for new automotive designs? A: CGA2B2NP02A331J050BA is the preferred choice. It carries Active product status, offers 100V voltage rating with ±5% tolerance, maintains AEC-Q200 compliance, and provides superior temperature stability through C0G/NP0 coefficient.

Q: Are all substitutes ROHS3 and AEC-Q200 compliant? A: Yes. All listed substitutes maintain ROHS3 compliance and AEC-Q200 automotive qualification, ensuring regulatory and quality requirements are met.

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