Is there a pin-compatible replacement for CQ0402ARNPO9BNR80?

Yes, RF15N0R8A500 from Walsin is a pin-compatible replacement. It is a 2-pin 0402 capacitor with identical key electrical ratings.

What risks should I check before replacing CQ0402ARNPO9BNR80?

Key risks include tolerance and series characteristics. Ensure the substitute's tolerance (e.g., ±0.05pF) meets your design needs and that its series is suitable for high-frequency (RF/Microwave) applications.

CQ0402ARNPO9BNR80 Alternatives, Datasheet & Cross Reference | Yageo

Reviewing alternatives for the Yageo CQ0402ARNPO9BNR80, a 0.8pF 50V NP0 high-Q capacitor in a 0402 package. This analysis identifies pin-compatible substitutes and parametric alternatives.

AI replacement insight

Electrical risklow

Low for pin-to-pin match; medium for wider tolerance parts.

Package risklow

All reviewed candidates use the same 0402 package.

Can it be replaced directly?

Yes, the Walsin RF15N0R8A500 is a direct, pin-compatible replacement for the Yageo CQ0402ARNPO9BNR80.

Best replacement path

The most direct replacement path is to use the Walsin RF15N0R8A500, which is a pin-to-pin match on all key parameters.

Main risk

The main risk is ensuring the substitute's high-frequency performance (Q-factor, ESR) is equivalent, as both parts are specified for RF applications.

Recommended alternatives

A pin-compatible 0.8pF 50V NP0 capacitor in a 0402 package from Walsin, matching all key electrical parameters.

View details

Alternative comparison matrix

Feature / factor	CQ0402ARNPO9BNR80	RF15N0R8A500	0402CG0R8B500NT	Compatibility / risk
Package	0402 (1005 metric)	0402 (1005 Metric)	0402	0402 (1005 Metric) — Identical package ensures form and fit.; 0402CG0R8B500NT: Identical package ensures form and fit.
Capacitance	0.8 pF	0.8 pF	0.8 pF	0.8 pF — Capacitance matches the target value.; 0402CG0R8B500NT: Capacitance matches the target value.
Voltage	50 V	50 V	50 V	50 V — Voltage rating meets the requirement.; 0402CG0R8B500NT: Voltage rating meets the requirement.
Tolerance	±0.05 pF	±0.05 pF	±0.1 pF	±0.05 pF / ±0.1 pF — Tolerance matches the target's precision.; 0402CG0R8B500NT: Tolerance is 2x wider than the target.
Dielectric	NP0 (C0G)	NP0 (C0G)	-	NP0 (C0G) — Dielectric material ensures similar temperature stability.

Application & sourcing insights

Questions & answers

The Walsin RF15N0R8A500 is the best alternative, matching capacitance, voltage, tolerance, dielectric, and package size, making it a strong pin-to-pin candidate.