1808WC102MAT3A Equivalent & Substitute Parts

Part Overview

The 1808WC102MAT3A is a high-voltage ceramic capacitor manufactured by KYOCERA AVX with a capacitance of 1000 pF, rated voltage of 2500V (2.5kV), and X7R temperature coefficient. This surface-mount multilayer ceramic capacitor (MLCC) in 1808 (4520 Metric) package is designed for general-purpose high-voltage applications. The part is active and in production with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified to provide alternatives with improved specifications, enhanced availability, or different packaging options while maintaining core electrical and mechanical compatibility.

Substiute Parts

1808WC102MAT3A

KYOCERA AVXIn Stock: 10191808WC102MAT3A Datasheet

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1808HC102KAT1A

KYOCERA AVXIn Stock: 46831808HC102KAT1A Datasheet

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1808WC102KAT1A

KYOCERA AVXIn Stock: 22291808WC102KAT1A Datasheet

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KGM42CR73U102KY

KYOCERA AVXIn Stock: 5776KGM42CR73U102KY Datasheet

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VPDP302W102K1GV001E

Johanson Dielectrics Inc.In Stock: 115725VPDP302W102K1GV001E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1808WC102MAT3A is determined by the following critical parameters:

• Capacitance: Must be 1000 pF (exact match required)
• Temperature Coefficient: Must be X7R (ensures stable performance across -55°C to 125°C operating range)
• Package / Case: Must be 1808 (4520 Metric) (ensures mechanical and electrical compatibility with PCB footprints)
• Mounting Type: Must be Surface Mount, MLCC (maintains assembly process compatibility)
• Operating Temperature Range: Must support -55°C ~ 125°C minimum
• Voltage - Rated: Must be ≥2500V (equal or higher voltage rating acceptable; lower ratings are not substitutable)
• Tolerance: ±10% or ±20% acceptable (tighter tolerance is acceptable as upgrade)
• RoHS Status: Must maintain ROHS3 Compliance
• Moisture Sensitivity Level: Must be MSL 1 (Unlimited)

All four identified substitute parts meet these criteria. Substitutes with higher voltage ratings (3000V) provide enhanced design margin. Tolerance improvements from ±20% to ±10% offer tighter capacitance control. Packaging variations (Tape & Reel vs. Cut Tape) accommodate different procurement and assembly workflows.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are active products with ROHS3 compliance and MSL 1 rating, meeting regulatory and environmental requirements equivalent to the original 1808WC102MAT3A.

1808HC102KAT1A (KYOCERA AVX): Provides 3000V voltage rating with ±10% tolerance improvement and Cut Tape / Digi-Reel packaging option. Identical physical dimensions to the original part.

1808WC102KAT1A (KYOCERA AVX): Maintains 2500V voltage rating with ±10% tolerance upgrade and Tape & Reel packaging. Direct voltage-class equivalent with improved capacitance tolerance.

KGM42CR73U102KY (KYOCERA AVX, KGM - HV Series): Offers 3000V voltage rating with ±10% tolerance and Tape & Reel packaging. Thickness specification of 2.21mm is within acceptable tolerance variance.

VPDP302W102K1GV001E (Johanson Dielectrics Inc., HVS-PME Series): Provides 3000V voltage rating with ±10% tolerance and Tape & Reel packaging. Dimensional variance of 0.185" L x 0.080" W (4.70mm x 2.03mm) and 0.085" thickness (2.16mm) remains within standard PCB footprint tolerance for 1808 package class. Specified for SMPS filtering applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute 1808WC102MAT3A with a part rated at 2000V instead of 2500V or higher?

A: No. The voltage rating is a critical parameter that cannot be downgraded. Substitute parts must maintain the original 2500V rating or exceed it. Lower voltage ratings are not acceptable substitutes.

Q: What is the difference between ±20% and ±10% tolerance, and does it affect substitution?

A: Tolerance specifies the allowable deviation of actual capacitance from the nominal 1000 pF value. ±20% allows deviation from 800 pF to 1200 pF; ±10% allows 900 pF to 1100 pF. Parts with ±10% tolerance are acceptable substitutes for ±20% applications, as they provide tighter capacitance control. The reverse substitution (±20% for ±10% requirement) is not acceptable.

Q: Are the dimensional differences between VPDP302W102K1GV001E and the original part significant?

A: The VPDP302W102K1GV001E has slightly larger length (0.185" vs. 0.181") and width (0.080" vs. 0.079"), with reduced thickness (0.085" vs. 0.087"). These variations remain within standard 1808 package class tolerances and are compatible with standard PCB footprints designed for 1808 (4520 Metric) components.

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

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) & Digi-Reel packaging provides smaller quantities on cut tape segments, suitable for lower-volume or mixed-component assembly. Both are compatible with standard pick-and-place equipment; packaging choice depends on procurement volume and assembly workflow requirements.

Q: Can I use a 3000V-rated part in an application designed for 2500V?

A: Yes. Higher voltage ratings provide additional design margin and are acceptable substitutes. The circuit will operate safely with the higher-rated component.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity level, matching the environmental and regulatory status of the original 1808WC102MAT3A.