CGA2B2X8R2A331M050BE Equivalent & Substitute Parts

Part Overview

The CGA2B2X8R2A331M050BE is a 330 pF ceramic capacitor manufactured by TDK Corporation, rated for 100V with X8R temperature coefficient in 0402 (1005 Metric) surface mount package. This component is classified as Not For New Designs, indicating it has been superseded in TDK's product portfolio. Finding equivalent or substitute parts is necessary for ongoing maintenance, repair, and legacy system support where original components may no longer be readily available or where design flexibility permits alternative qualified parts.

Substiute Parts

CGA2B2X8R2A331M050BE

TDK CorporationIn Stock: 823CGA2B2X8R2A331M050BE Datasheet

Current PartRFQ

CL10B331KC8WPNC

Samsung Electro-MechanicsIn Stock: 1106CL10B331KC8WPNC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CGA2B2X8R2A331M050BE is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance value: 330 pF
• Voltage rating: 100V minimum
• Mounting type: Surface Mount, MLCC
• Compliance: AEC-Q200 certification for automotive applications

Allowable Variations:

• Temperature coefficient: X7R is acceptable as a substitute for X8R (X7R provides ±15% capacitance change over temperature versus X8R's ±22%, representing improved stability)
• Tolerance: ±10% is tighter than the original ±20%, providing better precision
• Package size: Larger packages (0603) are mechanically compatible with 0402 footprints in most applications, though PCB layout modifications may be required
• Operating temperature range: X7R specification (-55°C ~ 125°C) covers the primary operating window of the original part

The substitute part CL10B331KC8WPNC from Samsung Electro-Mechanics meets all mandatory parameters while offering improved temperature stability and tighter tolerance specifications.

Parameter Comparison

Engineering Selection Recommendations

The CL10B331KC8WPNC from Samsung Electro-Mechanics is a qualified substitute for the CGA2B2X8R2A331M050BE based on the following engineering criteria:

Compliance & Certification: Both parts carry AEC-Q200 automotive qualification and ROHS3 compliance, meeting regulatory requirements for automotive and industrial applications.

Electrical Performance: The substitute maintains the same 330 pF capacitance and 100V voltage rating. The X7R temperature coefficient of the substitute provides superior temperature stability compared to the original X8R specification, with a narrower capacitance drift band of ±15% versus ±22%.

Tolerance Improvement: The ±10% tolerance of the substitute is tighter than the original ±20%, offering better circuit performance predictability without requiring design modifications.

Physical Considerations: The substitute uses a 0603 (1608 Metric) package versus the original 0402 (1005 Metric). This size increase requires verification that the PCB layout can accommodate the larger footprint. The substitute's maximum thickness of 0.035" (0.90mm) versus the original 0.024" (0.60mm) must be confirmed against board clearance constraints.

Product Lifecycle: The substitute is in Active production status, ensuring long-term availability and supply chain stability, whereas the original part is designated Not For New Designs.

Frequently Asked Questions (FAQ)

Q: Can the CL10B331KC8WPNC be used as a direct drop-in replacement for the CGA2B2X8R2A331M050BE?

A: Electrically, yes. The substitute meets all mandatory electrical parameters: 330 pF capacitance, 100V rating, and AEC-Q200 qualification. However, the package size difference (0603 versus 0402) requires PCB layout verification. The larger footprint and increased thickness must be confirmed against available board space and component clearances.

Q: What is the difference between X8R and X7R temperature coefficients?

A: Both are Class II ceramic dielectric materials. X8R specifies ±22% capacitance change over -55°C to 150°C. X7R specifies ±15% capacitance change over -55°C to 125°C. The X7R substitute provides better temperature stability within its operating range, though it does not extend to the original part's maximum temperature of 150°C.

Q: Are there any compatibility concerns with automotive applications?

A: No. Both parts carry AEC-Q200 certification, confirming suitability for automotive environments. Both are ROHS3 compliant and have MSL 1 (Unlimited) moisture sensitivity ratings, meeting automotive reliability standards.

Q: Why is the substitute part larger (0603 versus 0402)?

A: The 0603 package is a standard industry size offering improved mechanical robustness and thermal performance. The larger size does not affect electrical function but requires confirmation that the PCB layout has sufficient space for the 1.60mm x 0.80mm footprint.

Q: Is the tighter tolerance (±10% versus ±20%) beneficial?

A: Yes. Tighter tolerance improves circuit performance predictability and reduces design margin requirements. This is a specification improvement with no negative impact on compatibility.

Q: What is the inventory status of the substitute part?

A: The CL10B331KC8WPNC has 1010 pieces in stock as new original inventory, compared to 718 pieces of the original part, indicating better supply availability.