Is there a pin-compatible replacement for PX225K2C2203?

No, a direct pin-compatible replacement with the same 22.5mm lead pitch was not identified in this review. All functional alternatives require physical board modification.

What risks should I check before replacing PX225K2C2203?

The main risk is the package mismatch; you must verify your PCB can accommodate a 27.5mm lead pitch instead of 22.5mm. Also, confirm the alternative's safety certifications meet your application's requirements.

PX225K2C2203 Alternatives, Datasheet & Cross Reference | KYET

Finding a substitute for the KYET PX225K2C2203 involves matching its 2.2µF, 310VAC X2 safety rating. The main challenge is the 22.5mm lead pitch, as common alternatives have a different footprint.

AI replacement insight

Package riskhigh

Lead pitch mismatch (27.5mm vs 22.5mm) prevents drop-in replacement and requires board modification.

Electrical risklow

Functionally similar parts are available, matching key electrical parameters like capacitance and voltage.

Can it be replaced directly?

No direct, pin-compatible replacement was found. The closest alternatives require board modification due to a different lead pitch.

Best replacement path

Search for an X2 safety film capacitor with 2.2µF capacitance, 310VAC rating, and a 22.5mm lead pitch.

Main risk

The primary risk is physical incompatibility. Alternatives have a 27.5mm lead pitch, which will not fit the target's 22.5mm footprint without adaptation.

Recommended alternatives

A functional alternative with identical electrical ratings but a wider 27.5mm lead pitch.

View details

Alternative comparison matrix

Feature / factor	PX225K2C2203	PX225K2C2705	MPX225K31F2KN20800	Compatibility / risk
Dielectric	Metallized Polypropylene Film	Metallized Polypropylene Film	X2 Safety Film Capacitor	Metallized Polypropylene Film / X2 Safety Film Capacitor — Matches target's X2 safety capacitor type.; MPX225K31F2KN20800: Matches target's X2 safety capacitor type.
Capacitance	2.2e-06 F	2.2e-06 F	2.2e-06 F	2.2e-06 F — Identical capacitance value.; MPX225K31F2KN20800: Identical capacitance value.
Voltage	310.0 V	310.0 V	310.0 V	310.0 V — Matches AC voltage rating.; MPX225K31F2KN20800: Covers AC voltage rating.
Package	22.5mm	27.5mm	27.5mm	27.5mm — Lead pitch is larger, requires PCB layout change.; MPX225K31F2KN20800: Lead pitch is larger, requires PCB layout change.

Application & sourcing insights

Questions & answers

The best alternatives are functionally equivalent X2 safety capacitors like KYET PX225K2C2705, but they have a wider 27.5mm lead pitch and are not drop-in replacements.