1808HC330MAT1A Equivalent & Substitute Parts

Part Overview

The 1808HC330MAT1A is a 33 pF ceramic capacitor manufactured by KYOCERA AVX, rated for 3000V (3kV) operation with 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 currently active in production with 801 pieces available in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component selection from qualified manufacturers.

Substiute Parts

1808HC330MAT1A

KYOCERA AVXIn Stock: 8661808HC330MAT1A Datasheet

Current PartRFQ

C1808C330MHRAC7800

KEMETIn Stock: 2015C1808C330MHRAC7800 Datasheet

MFR RecommendedRFQ

C4520C0G3F330K160KA

TDK CorporationIn Stock: 7121C4520C0G3F330K160KA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1808HC330MAT1A is determined by the following mandatory parameters:

• Capacitance value: 33 pF (exact match required)
• Voltage rating: 3000V (3kV) minimum
• Package / Case: 1808 (4520 Metric)
• Mounting type: Surface Mount, MLCC
• Operating temperature range: -55°C to 125°C minimum
• RoHS3 compliance
• Moisture Sensitivity Level: 1

Temperature coefficient (X7R or C0G/NP0) and tolerance (±20% or ±10%) are allowed to vary within the constraints of the application requirements. Substitute parts meeting all mandatory parameters are qualified for direct replacement in equivalent circuit positions.

Parameter Comparison

Engineering Selection Recommendations

All three parts listed are active products with ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for current applications.

The 1808HC330MAT1A (KYOCERA AVX) and C1808C330MHRAC7800 (KEMET) both feature X7R temperature coefficient with ±20% tolerance. The KEMET part offers lower ESL characteristics and reduced thickness (1.75mm vs 2.20mm), which may provide advantages in high frequency or space-constrained applications.

The C4520C0G3F330K160KA (TDK) provides C0G/NP0 temperature coefficient with tighter ±10% tolerance, offering superior temperature stability and capacitance retention across the operating range. This part is suitable for applications requiring more stable capacitance values over temperature variations.

Component selection should be based on specific circuit requirements regarding temperature coefficient stability, tolerance requirements, and physical space constraints within the PCB layout.

Frequently Asked Questions (FAQ)

Q: Can C4520C0G3F330K160KA (TDK, C0G) replace 1808HC330MAT1A (KYOCERA AVX, X7R)?

A: Yes. Both parts meet the mandatory substitution parameters: 33 pF capacitance, 3000V rating, 1808 package, surface mount MLCC, -55°C to 125°C operating range, ROHS3 compliance, and MSL 1. The C0G temperature coefficient provides tighter tolerance (±10% vs ±20%) and superior temperature stability, making it suitable for direct replacement in equivalent circuit positions.

Q: What are the physical dimension differences between substitute parts?

A: Length varies from 4.50mm (TDK) to 4.70mm (KEMET), with the KYOCERA AVX at 4.60mm. Thickness ranges from 1.75mm (KEMET) to 2.20mm (KYOCERA AVX). Width is consistent at 2.00mm across all parts. PCB layout and component placement constraints should be verified before final selection.

Q: Are all substitute parts MSL 1 rated?

A: Yes. All listed parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling or baking requirements during storage and assembly.

Q: What is the difference between X7R and C0G temperature coefficients?

A: X7R provides ±15% capacitance change over the -55°C to 125°C temperature range. C0G/NP0 provides superior stability with minimal capacitance change across temperature. C0G is preferred for applications requiring stable capacitance values; X7R is suitable for general purpose applications with less stringent stability requirements.

Q: Can these parts be used interchangeably in high voltage circuits?

A: All parts are rated for 3000V operation and are suitable for high voltage applications. Verify that circuit design and PCB layout accommodate the physical dimension variations between substitute parts, particularly thickness and length differences.