Is there a pin-compatible replacement for 1812B103K202NT?

Several parts share the same 1812 package and are pin-compatible, but they have different capacitance values (e.g., 2.2nF instead of 10nF). These are not electrically equivalent and are not drop-in replacements.

What risks should I check before replacing 1812B103K202NT?

You must verify the capacitance value. Using a part with different capacitance can affect filter performance, circuit timing, and stability. Also confirm the voltage rating is at least 2kV and the temperature characteristic is X7R.

1812B103K202NT Alternatives, Datasheet & Cross Reference | Guangdong Fenghua Advanced Technology Holding Co., Ltd.

Finding a substitute for the 1812B103K202NT, a 10nF 2kV 1812 MLCC, requires careful matching of capacitance, voltage, and package. Alternatives may exist with different parameters, requiring circuit analysis.

AI replacement insight

Electrical riskhigh

Capacitance mismatch is a critical functional difference.

Package risklow

Candidates share the same 1812 package.

Can it be replaced directly?

No, a direct drop-in replacement for the 1812B103K202NT was not identified. All reviewed candidates have significantly different capacitance values.

Best replacement path

Search for an MLCC with 10nF capacitance, >=2kV voltage, X7R dielectric, and 1812 package from other manufacturers.

Main risk

The primary risk is electrical mismatch due to different capacitance, which can alter circuit filtering, timing, or stability.

Recommended alternatives

Shares package and voltage but has significantly lower capacitance, requiring circuit validation.

View details

Alternative comparison matrix

Feature / factor	1812B103K202NT	1812B222K202NT	1812B102K202NT	1812B102K402NT	Compatibility / risk
Capacitance	10nF	2.2nF	1nF	1nF	2.2nF / 1nF — Candidate capacitance is ~4.5x lower than target.; 1812B102K202NT: Candidate capacitance is 10x lower than target.; 1812B102K402NT: Candidate capacitance is 10x lower than target.
Voltage	2kV	2kV	2kV	4kV	2kV / 4kV — Voltage rating matches.; 1812B102K202NT: Voltage rating matches.; 1812B102K402NT: Voltage rating is higher, providing more margin.
Package	1812	1812	1812	1812	1812 — Package size matches.; 1812B102K202NT: Package size matches.; 1812B102K402NT: Package size matches.
Tcr	X7R	X7R	X7R	X7R	X7R — Temperature coefficient matches.; 1812B102K202NT: Temperature coefficient matches.; 1812B102K402NT: Temperature coefficient matches.

Application & sourcing insights

Questions & answers

The best alternative is a capacitor with the same 10nF capacitance, 2kV or higher voltage rating, X7R dielectric, and 1812 package. No exact match was found; similar parts like 1812B222K202NT have different capacitance and require review.