FG18C0G2A2R2CNT06 Equivalent & Substitute Parts

Part Overview

The FG18C0G2A2R2CNT06 is a 2.2 pF ceramic capacitor rated at 100V with C0G (NP0) temperature coefficient, manufactured by TDK Corporation in radial through-hole configuration. This component is classified as "Not For New Designs," indicating it has been superseded in TDK's product portfolio.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 maintenance, repair, and legacy system support where this specific part number is no longer readily available or recommended for new applications.

Substiute Parts

FG18C0G2A2R2CNT06

TDK CorporationIn Stock: 1323FG18C0G2A2R2CNT06 Datasheet

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FA18C0G2A2R2CNU06

TDK CorporationIn Stock: 8843FA18C0G2A2R2CNU06 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the FG18C0G2A2R2CNT06 is determined by strict equivalence across the following parameters:

• Capacitance value: 2.2 pF (exact match required)
• Tolerance: ±0.25pF (exact match required)
• Voltage rating: 100V (minimum requirement; higher ratings acceptable)
• Temperature coefficient: C0G/NP0 (required for stability)
• Operating temperature range: -55°C ~ 125°C (minimum requirement)
• Mounting type: Through Hole Radial (physical compatibility)
• Package dimensions and lead spacing: 4.00mm x 2.50mm with 2.50mm lead spacing (PCB footprint compatibility)
• RoHS compliance: ROHS3 Compliant (regulatory requirement)

The FA18C0G2A2R2CNU06 meets all these criteria and qualifies as a direct substitute. The primary distinction is the upgrade from general-purpose to automotive-grade qualification (AEC-Q200), which represents an enhancement in reliability and quality assurance without compromising compatibility.

Parameter Comparison

Engineering Selection Recommendations

The FA18C0G2A2R2CNU06 is a direct functional and physical substitute for the FG18C0G2A2R2CNT06. Both components are manufactured by TDK Corporation and share identical electrical specifications, physical dimensions, and RoHS compliance status.

The FA18C0G2A2R2CNU06 carries AEC-Q200 automotive qualification, indicating enhanced reliability testing and quality assurance protocols. This upgrade does not introduce any incompatibility; it represents a higher grade of the same component suitable for applications requiring automotive-grade standards.

Both parts are classified as "Not For New Designs," reflecting their status in TDK's current product lifecycle. For legacy system support and replacement applications, the FA18C0G2A2R2CNU06 is the appropriate choice where the FG18C0G2A2R2CNT06 is unavailable.

Frequently Asked Questions (FAQ)

Q: Can the FA18C0G2A2R2CNU06 be used as a direct replacement for the FG18C0G2A2R2CNT06?

A: Yes. Both parts have identical capacitance (2.2 pF), tolerance (±0.25pF), voltage rating (100V), temperature coefficient (C0G/NP0), operating temperature range (-55°C ~ 125°C), and physical dimensions (4.00mm x 2.50mm with 2.50mm lead spacing). They are pin-compatible and electrically equivalent.

Q: What is the difference between the FG and FA series?

A: The FG series is general-purpose grade, while the FA series carries AEC-Q200 automotive qualification. Both meet the same electrical and physical specifications for this 2.2 pF capacitor. The FA series undergoes additional reliability testing and quality assurance protocols required for automotive applications.

Q: Are there any PCB layout considerations when substituting these parts?

A: No. Both components use identical radial through-hole packaging with 2.50mm lead spacing and 4.00mm x 2.50mm body dimensions. No PCB modifications are required.

Q: Do both parts meet RoHS compliance?

A: Yes. Both the FG18C0G2A2R2CNT06 and FA18C0G2A2R2CNU06 are ROHS3 Compliant.

Q: Why are both parts marked "Not For New Designs"?

A: This designation indicates that both components have been superseded in TDK's current product portfolio. They remain available for legacy system support and replacement applications but are not recommended for new product development.