Is there a pin-compatible replacement for 0402CG3R9B500NT?

Yes, several capacitors like Yageo's CC0402CRNPO9BN3R9 are available in the same 0402 package and are pin-compatible. However, their electrical parameters, such as tolerance, differ and must be verified.

What risks should I check before replacing 0402CG3R9B500NT?

The main risk is electrical performance. The target part has a tight ±0.1pF tolerance. Substitutes may have a wider tolerance (e.g., ±0.25pF) or slightly different capacitance, which can affect RF, timing, or filter circuits.

0402CG3R9B500NT Alternatives, Datasheet & Cross Reference | Guangdong Fenghua Advanced Technology Holding Co., Ltd.

The 0402CG3R9B500NT is a 3.9pF, 50V, C0G ceramic capacitor in a 0402 package with a tight ±0.1pF tolerance. Alternatives exist but may require verifying tolerance and capacitance value.

AI replacement insight

Electrical riskmedium

Tolerance and minor capacitance shifts require validation.

Package risklow

All viable candidates share the 0402 package.

Can it be replaced directly?

No verified direct, drop-in replacement has been identified. The closest candidates have wider capacitance tolerance, which requires engineering review.

Best replacement path

Yageo's CC0402CRNPO9BN3R9 offers the same capacitance, voltage, and package, but with a wider tolerance (±0.25pF). This is the closest parametric match.

Main risk

The primary risk is the wider capacitance tolerance of available alternatives, which can impact the performance of frequency-sensitive or timing circuits.

Recommended alternatives

A 3.9pF, 50V capacitor in the same 0402 package, but with a wider tolerance of ±0.25pF.

View details

Alternative comparison matrix

Feature / factor	0402CG3R9B500NT	CC0402CRNPO9BN3R9	0402CG4R0C500NT	Compatibility / risk
Package	0402	0402 (1005 metric)	0402	0402 (1005 metric) — Same package ensures form-fit compatibility.; 0402CG4R0C500NT: Same package ensures form-fit compatibility.
Capacitance	3.9pF	3.9pF	4.0pF	3.9pF / 4.0pF — Identical nominal capacitance.; 0402CG4R0C500NT: Slightly higher capacitance.
Voltage	50V	50V	50V	50V — Voltage rating matches.; 0402CG4R0C500NT: Voltage rating matches.
Tolerance	±0.1pF	±0.25pF	±0.25pF	±0.25pF — Wider tolerance may impact precision circuits.; 0402CG4R0C500NT: Wider tolerance may impact precision circuits.
Dielectric	C0G (NP0)	NP0 (C0G)	-	NP0 (C0G) — Same stable dielectric material.

Application & sourcing insights

Questions & answers

Yageo CC0402CRNPO9BN3R9 is a strong candidate. It matches the 3.9pF capacitance, 50V rating, and 0402 package, but has a wider tolerance of ±0.25pF that should be reviewed for your application.