1812HA101MAT1A Equivalent & Substitute Parts

Part Overview

The 1812HA101MAT1A is a 100 pF ceramic capacitor manufactured by KYOCERA AVX, rated for 3000V (3kV) operation with C0G/NP0 temperature coefficient characteristics. This high-voltage surface-mount multilayer ceramic capacitor (MLCC) in 1812 (4532 Metric) package format is designed for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications (capacitance, voltage rating, temperature coefficient) and mechanical compatibility (package format, physical dimensions, mounting type).

Substiute Parts

1812HA101MAT1A

KYOCERA AVXIn Stock: 9531812HA101MAT1A Datasheet

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1812HA101KAT1A

KYOCERA AVXIn Stock: 46241812HA101KAT1A Datasheet

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KGM43BCG3U101JV

KYOCERA AVXIn Stock: 4810KGM43BCG3U101JV Datasheet

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C4532C0G3F101K160KA

TDK CorporationIn Stock: 33332C4532C0G3F101K160KA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812HA101MAT1A is determined by the following mandatory parameters:

• Capacitance value: 100 pF (exact match required)
• Voltage rating: 3000V (3kV) minimum (equal or higher acceptable)
• Temperature coefficient: C0G or NP0 (interchangeable designations for same characteristic)
• Package format: 1812 (4532 Metric) surface-mount configuration
• Mounting type: Surface Mount, MLCC
• Operating temperature range: -55°C to 125°C minimum coverage

The substitute parts listed below meet all mandatory electrical and mechanical parameters. Tolerance specifications (±20%, ±10%, ±5%) represent design improvements and do not prevent substitution, as tighter tolerances are backward-compatible with applications designed for the original ±20% specification.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active production status and full ROHS3 compliance, ensuring long-term availability and regulatory conformance for new designs and production runs.

1812HA101KAT1A (KYOCERA AVX): Direct manufacturer equivalent with identical physical dimensions and electrical ratings. Offers improved tolerance specification (±10% versus ±20%) while maintaining identical voltage, capacitance, and temperature coefficient characteristics. Recommended for applications where tighter capacitance tolerance provides design margin without requiring component redesign.

KGM43BCG3U101JV (KYOCERA AVX, KGM - HV Series): Specialized high-voltage series variant with the tightest tolerance specification (±5%). Maintains all electrical and mechanical compatibility with the original part. Suitable for precision applications requiring superior capacitance stability across the operating temperature range.

C4532C0G3F101K160KA (TDK Corporation, C Series): Cross-manufacturer substitute from TDK Corporation with equivalent electrical specifications. Physical dimensions show minor variations: length 0.177" (4.50mm) versus 0.181" (4.60mm), and thickness 0.071" (1.80mm) versus 0.057" (1.45mm). These dimensional differences remain within typical PCB layout tolerances for 1812 package format applications. Recommended where TDK supply chain preference or inventory availability is a selection factor.

Frequently Asked Questions (FAQ)

Q: Can I substitute 1812HA101KAT1A for 1812HA101MAT1A in existing designs?

A: Yes. The 1812HA101KAT1A is a direct equivalent from the same manufacturer with identical electrical ratings (100 pF, 3000V, C0G/NP0) and physical package format (1812/4532 Metric). The improved tolerance specification (±10% versus ±20%) is backward-compatible with applications designed for the original part.

Q: What is the difference between the tolerance specifications (±20%, ±10%, ±5%)?

A: Tolerance defines the allowable capacitance variation from the nominal 100 pF value. ±20% allows 80–120 pF, ±10% allows 90–110 pF, and ±5% allows 95–105 pF. Tighter tolerances provide greater capacitance stability and are suitable for precision applications. All three tolerance grades are electrically compatible for substitution purposes.

Q: Can I use the TDK C4532C0G3F101K160KA as a substitute despite the dimensional differences?

A: The TDK part is electrically equivalent and mechanically compatible for standard 1812 package footprints. However, the increased thickness (0.071" versus 0.057") and slightly reduced length (0.177" versus 0.181") require verification against specific PCB layout constraints, component clearance requirements, and assembly equipment specifications. Confirm compatibility with your manufacturing process before production implementation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, ensuring regulatory conformance for applications subject to RoHS directives.

Q: What does Moisture Sensitivity Level (MSL) 1 mean?

A: MSL 1 indicates unlimited shelf life without moisture baking requirements. All listed parts share this specification, eliminating moisture-related handling constraints during storage and assembly.

Q: Can I mix different substitute parts in the same production batch?

A: All substitute parts meet identical electrical specifications and are mechanically compatible with the original 1812HA101MAT1A footprint. However, mixing different manufacturers or tolerance grades in the same assembly may introduce minor capacitance variations. Verify that your circuit design tolerates the combined tolerance range if multiple sources are used.