CC1808KKX7RDBB331 Equivalent & Substitute Parts

Part Overview

The CC1808KKX7RDBB331 is a 330 pF ceramic capacitor manufactured by YAGEO, rated for 2000V (2kV) operation with X7R temperature coefficient characteristics. This surface mount multilayer ceramic capacitor (MLCC) in 1808 (4520 Metric) package is designed for general purpose high voltage applications. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts may be required due to inventory availability, specific application requirements, or performance optimization needs within compatible electrical and mechanical parameters.

Substiute Parts

CC1808KKX7RDBB331

YAGEOIn Stock: 817CC1808KKX7RDBB331 Datasheet

Current PartRFQ

C1808C331JZGAC7800

KEMETIn Stock: 1221C1808C331JZGAC7800 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CC1808KKX7RDBB331 is based on the following critical parameters:

• Capacitance value: 330 pF (exact match required)
• Package / Case: 1808 (4520 Metric) (exact match required for PCB compatibility)
• Mounting Type: Surface Mount, MLCC (exact match required)
• Voltage Rating: Minimum 2000V (equal or higher voltage rating acceptable)
• Temperature Coefficient: X7R or equivalent stability class (C0G/NP0 acceptable as superior alternative)
• Operating Temperature: -55°C ~ 125°C (minimum requirement)
• RoHS Compliance: ROHS3 Compliant (required)
• Moisture Sensitivity: MSL 1 (required)

The substitute part C1808C331JZGAC7800 meets all critical substitution criteria with enhanced specifications in voltage rating (2500V vs 2000V) and tolerance (±5% vs ±10%), while maintaining identical capacitance, package, and mounting characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both parts are active products with full RoHS3 compliance and REACH unaffected status. The CC1808KKX7RDBB331 (YAGEO) meets the baseline specification for 2000V applications with X7R stability. The C1808C331JZGAC7800 (KEMET) provides enhanced performance through higher voltage rating (2500V) and tighter tolerance (±5%), with C0G/NP0 temperature coefficient offering superior stability characteristics. Selection between these parts should be based on application voltage margin requirements and tolerance specifications. Physical dimension differences (length 4.50mm vs 4.70mm, thickness 1.50mm vs 2.15mm) must be verified for PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can C1808C331JZGAC7800 directly replace CC1808KKX7RDBB331 in existing designs?

A: Direct replacement is electrically compatible. Both parts share identical capacitance (330 pF), package (1808), and mounting type. Verify PCB layout accommodates the slightly larger dimensions of the KEMET part (4.70mm length vs 4.50mm, 2.15mm thickness vs 1.50mm).

Q: What is the significance of the temperature coefficient difference (X7R vs C0G/NP0)?

A: X7R provides ±15% capacitance variation across the -55°C to 125°C operating range. C0G/NP0 provides superior stability with ±0.3% variation. For applications requiring tighter capacitance tolerance across temperature extremes, C0G/NP0 is preferred.

Q: Is the higher voltage rating (2500V vs 2000V) of the KEMET part beneficial?

A: Higher voltage rating provides increased safety margin and reliability in high voltage circuits. This is a performance enhancement with no negative impact on 2000V-rated applications.

Q: Are there any compliance or certification differences between these parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity). No compliance differences exist.

Q: What tolerance should be specified for circuit design?

A: The YAGEO part specifies ±10% tolerance, while the KEMET substitute specifies ±5%. Design calculations should account for the applicable tolerance of the selected part.