Is there a pin-compatible replacement for CGA3E3X5R1H684KT0Y0N?

While several 0603 capacitors are physically pin-compatible, no electrically identical replacement was found. All candidates have different capacitance values or qualifications, requiring engineering review before substitution.

What risks should I check before replacing CGA3E3X5R1H684KT0Y0N?

Before replacing, you must check two main risks: 1) Electrical impact: ensure your circuit can function correctly with a different capacitance value. 2) Qualification: if your application is automotive, using a non-AEC-Q200 part is a major reliability risk.

CGA3E3X5R1H684KT0Y0N Alternatives, Datasheet & Cross Reference | TDK Electronics AG

Finding a substitute for the TDK CGA3E3X5R1H684KT0Y0N requires careful review. This is an automotive-grade 0.68µF 50V MLCC in an 0603 package. Alternatives exist but often differ in capacitance or lack automotive qualification.

AI replacement insight

Electrical riskhigh

Capacitance mismatch can affect filter performance, timing, or stability.

Sourcing riskhigh

Using a non-automotive part in an automotive application invalidates qualification.

Package risklow

All candidates share the same 0603 package, ensuring physical compatibility.

Can it be replaced directly?

No direct, drop-in replacement for CGA3E3X5R1H684KT0Y0N was found. All potential alternatives require engineering review due to different capacitance values or a lack of automotive qualification.

Best replacement path

The best option is TDK's CGA3E3X5R1H105KT0Y0N, which is from the same automotive series, but only if the circuit can tolerate a capacitance increase from 0.68µF to 1.0µF.

Main risk

The primary risks are circuit malfunction due to capacitance changes and reliability issues from using a non-automotive grade component in a qualified design.

Recommended alternatives

Same automotive series and specs, but higher capacitance (1µF vs 0.68µF).

View details

Alternative comparison matrix

Feature / factor	CGA3E3X5R1H684KT0Y0N	CGA3E3X5R1H105KT0Y0N	FCC0603X105K500CT	Compatibility / risk
Package	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric) — Same package and pin count.; FCC0603X105K500CT: Same package and pin count.
Capacitance	0.68µF	1.0µF	1.0µF	1.0µF — Capacitance is ~47% higher, requires circuit validation.; FCC0603X105K500CT: Capacitance is ~47% higher, requires circuit validation.
Voltage	50V	50V	50V	50V — Voltage rating is identical.; FCC0603X105K500CT: Voltage rating is identical.
Dielectric	X5R	X5R	-	X5R — Same dielectric and temperature characteristics.
Application	AEC-Q200	AEC-Q200	General	AEC-Q200 / General — Both are TDK CGA automotive series.; FCC0603X105K500CT: Candidate is not automotive grade.

Application & sourcing insights

Questions & answers

The best alternative is TDK's CGA3E3X5R1H105KT0Y0N, as it is from the same automotive series. However, it has a higher capacitance of 1.0µF (vs. 0.68µF), which must be validated by an engineer for your specific application.