Is there a pin-compatible replacement for CGA0805C0G390J500HT?

No, there are no pin-compatible replacements with the exact same 39pF capacitance in our catalog. Several parts like HGC0805G0330J500NTGJ share the 0805 package but have different capacitance values that must be reviewed by an engineer.

What risks should I check before replacing CGA0805C0G390J500HT?

The main risk is the change in capacitance. Using a part with lower or higher capacitance can affect circuit behavior, especially in filters, oscillators, or timing applications. For parts with a different package, the risk is physical incompatibility requiring a PCB redesign.

CGA0805C0G390J500HT Alternatives, Datasheet & Cross Reference | HRE

CGA0805C0G390J500HT is a 39pF, 50V, C0G ceramic capacitor in an 0805 package. While no exact drop-in replacements are available, several functional and parametric alternatives exist that may be suitable after engineering review.

AI replacement insight

Electrical riskmedium

Capacitance differences of 15-20% require circuit validation.

Package riskhigh

Functional alternates in different packages (e.g., 0402) are not drop-in and require a new PCB layout.

Can it be replaced directly?

No direct, drop-in replacement with identical parameters was found. All form-fit compatible parts have different capacitance values requiring engineering review.

Best replacement path

For a drop-in solution, HGC0805G0330J500NTGJ is the closest option but its 15% lower capacitance must be validated in the circuit. For new designs or board revisions, CGA0402C0G390J500GT is an electrically identical choice in a smaller package.

Main risk

The primary risk is capacitance mismatch, which can alter the performance of timing, filtering, or tuning circuits. Package mismatch is a secondary risk, requiring a board redesign.

Recommended alternatives

Functionally identical capacitor in a smaller 0402 package.

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Alternative comparison matrix

Feature / factor	CGA0805C0G390J500HT	CGA0402C0G390J500GT	HGC0805G0330J500NTGJ	CGA0805C0G470J500HT	Compatibility / risk
Package	0805	0402	0805 (2012 Metric)	0805	0402 / 0805 (2012 Metric) — Smaller package requires PCB redesign.; HGC0805G0330J500NTGJ: Form-factor compatible.; CGA0805C0G470J500HT: Form-factor compatible.
Capacitance	39 pF	39 pF	33 pF	47 pF	39 pF / 33 pF / 47 pF — matched; HGC0805G0330J500NTGJ: Candidate capacitance is ~15% lower.; CGA0805C0G470J500HT: Candidate capacitance is ~20% higher.
Voltage	50 V	50 V	50 V	50 V	50 V — matched; HGC0805G0330J500NTGJ: matched; CGA0805C0G470J500HT: matched
Dielectric	C0G	C0G	C0G	C0G	C0G — matched; HGC0805G0330J500NTGJ: matched; CGA0805C0G470J500HT: matched
Tolerance	±5%	-	±5%	-	±5% — matched

Application & sourcing insights

Questions & answers

The best alternative depends on your design constraints. HGC0805G0330J500NTGJ is form-fit compatible but has a lower capacitance (33pF). CGA0402C0G390J500GT is electrically identical but in a smaller 0402 package, requiring a board change.