What risks should I check before replacing AC0402KRX7R9BB104?

Check automotive grade, AEC status, DC bias capacitance, temperature range, termination, and voltage derating.

AC0402KRX7R9BB104 Alternatives, Datasheet & Cross Reference | yageo-corporation

AC0402KRX7R9BB104 is an automotive 100 nF 50 V X7R 0402 MLCC. Same-size candidates exist, but grade review is required.

AI replacement insight

Electrical riskmedium

Values match, but DC bias not checked.

Package risklow

Kept candidates are 0402.

Firmware risklow

Passive part; no firmware.

Sourcing riskmedium

Cross-vendor grade must be confirmed.

Can it be replaced directly?

Direct replacement for AC0402KRX7R9BB104 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Prefer same 0402, 100 nF, 50 V, X7R parts with proven automotive grade.

Main risk

Automotive grade/AEC status is missing on the closest candidates.

Recommended alternatives

Samsung CL05B104KB5NNNC matches 100 nF 50 V X7R 0402, but grade must be checked.

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Alternative comparison matrix

Feature / factor	AC0402KRX7R9BB104	CL05B104KB5NNNC	C1005X7R1H104KT000F	TCC0402X7R104K500AT	Compatibility / risk
Package	0402	0402	-	-	0402 — same case
Pinout	2 terminal	2 terminal	-	-	2 terminal — passive MLCC
Voltage	50 V	50 V	-	-	50 V — no 1.1x margin
Tolerance	100 nF ±10% X7R	100 nF ±10% X7R	-	-	100 nF ±10% X7R — key values align
Application	Automotive	General purpose	-	-	not stated — grade gap

Application & sourcing insights

Questions & answers

Verified drop-in options for AC0402KRX7R9BB104 are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.