1808WC122MAT9A Equivalent & Substitute Parts

Part Overview

The 1808WC122MAT9A is a 1200 pF ceramic capacitor rated for 2500V (2.5kV) with X7R temperature coefficient, manufactured by KYOCERA AVX. This high-voltage surface-mount multilayer ceramic capacitor (MLCC) is designed for general-purpose applications requiring stable capacitance across a wide temperature range (-55°C to 125°C). The part is active and in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to address packaging preferences, tolerance requirements, or inventory availability while maintaining electrical and mechanical compatibility.

Substiute Parts

1808WC122MAT9A

KYOCERA AVXIn Stock: 10741808WC122MAT9A Datasheet

Current PartRFQ

1808WC122KAT1A

KYOCERA AVXIn Stock: 50831808WC122KAT1A Datasheet

UpgradeRFQ

1808WC122KAT2A

KYOCERA AVXIn Stock: 27061808WC122KAT2A Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1808WC122MAT9A is determined by the following critical parameters:

• Capacitance Value: Must be 1200 pF (no deviation)
• Voltage Rating: Must be 2500V (2.5kV) or higher
• Temperature Coefficient: Must be X7R
• Package / Case: Must be 1808 (4520 Metric)
• Mounting Type: Must be Surface Mount, MLCC
• Physical Dimensions: Must match 4.60mm L × 2.00mm W × 2.20mm Max Thickness
• Compliance: Must maintain ROHS3 and REACH Unaffected status

The identified substitute parts (1808WC122KAT1A and 1808WC122KAT2A) meet all critical electrical and mechanical parameters. The primary difference is tolerance specification: the main part features ±20% tolerance, while both substitutes offer improved ±10% tolerance. Packaging format differs (bulk vs. Tape & Reel), allowing flexibility in procurement and assembly workflows.

Parameter Comparison

Engineering Selection Recommendations

All three parts (1808WC122MAT9A, 1808WC122KAT1A, and 1808WC122KAT2A) are active production components from KYOCERA AVX with identical electrical specifications and physical form factors. Selection between these parts should be based on:

Tolerance Requirements: Applications requiring tighter capacitance tolerance should specify 1808WC122KAT1A or 1808WC122KAT2A (±10% tolerance) over the main part (±20% tolerance).

Packaging and Supply Chain: The main part (1808WC122MAT9A) is supplied in bulk packaging, while both substitutes are supplied in Tape & Reel format. Tape & Reel packaging is standard for automated assembly processes and high-volume production. Bulk packaging may be preferred for manual assembly or low-volume applications.

Compliance and Certifications: All parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory compatibility across global markets. Moisture sensitivity rating (MSL 1) is identical across all parts, indicating no special storage or handling requirements.

Inventory Availability: Current stock levels are 1019 pcs (1808WC122MAT9A), 5021 pcs (1808WC122KAT1A), and 2665 pcs (1808WC122KAT2A). Substitute parts offer higher availability for high-volume procurement scenarios.

Frequently Asked Questions (FAQ)

Q: Can 1808WC122KAT1A or 1808WC122KAT2A be used as direct replacements for 1808WC122MAT9A?

A: Yes. Both substitute parts are electrically and mechanically compatible. They share identical capacitance (1200 pF), voltage rating (2500V), temperature coefficient (X7R), operating temperature range (-55°C to 125°C), and physical dimensions (1808 / 4520 Metric package). The primary differences are tolerance specification (±10% vs. ±20%) and packaging format (Tape & Reel vs. bulk).

Q: What is the significance of the tolerance difference between ±20% and ±10%?

A: Tolerance defines the allowable deviation of actual capacitance from the nominal 1200 pF value. The main part (1808WC122MAT9A) allows ±20% deviation (960 pF to 1440 pF), while substitutes allow ±10% deviation (1080 pF to 1320 pF). Applications with strict capacitance requirements should use the ±10% tolerance parts.

Q: Are there any differences in reliability or failure rates between these parts?

A: No reliability or failure rate data is provided in the specifications. All parts are manufactured by KYOCERA AVX, are active production components, and maintain identical electrical and mechanical characteristics relevant to reliability.

Q: What is the difference between bulk and Tape & Reel packaging?

A: Bulk packaging (1808WC122MAT9A) supplies components in loose form, suitable for manual assembly or small-quantity applications. Tape & Reel packaging (1808WC122KAT1A and 1808WC122KAT2A) supplies components on continuous tape wound on reels, optimized for automated pick-and-place assembly equipment used in high-volume manufacturing.

Q: Do all parts require the same storage and handling conditions?

A: Yes. All three parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life with no special moisture control or baking requirements prior to soldering.

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

A: No. All parts are ROHS3 compliant and REACH Unaffected, meeting the same regulatory requirements for use in electronic equipment across global markets.