Is there a pin-compatible replacement for MPX225K31F2KN20800?

The KYET PX225K2C2705 appears to be pin-compatible, with the same radial package and 27.5mm lead pitch. However, because safety certifications differ, it is classified as a form-fit-function match requiring engineering review, not a guaranteed drop-in replacement.

What risks should I check before replacing MPX225K31F2KN20800?

Before replacing, check three main risks: 1) Electrical: Ensure the replacement is an X2-rated safety capacitor with at least a 310VAC rating. 2) Mechanical: Verify the lead pitch is exactly 27.5mm to fit your PCB. 3) Regulatory: Confirm the replacement's safety certifications meet your product's regional requirements.

MPX225K31F2KN20800 Alternatives, Datasheet & Cross Reference | KNSCHA

Reviewing alternatives for the KNSCHA MPX225K31F2KN20800, a 2.2µF 310VAC X2 safety capacitor. Key considerations for replacements are matching the X2 safety rating, voltage, capacitance, and the 27.5mm radial lead pitch.

AI replacement insight

Electrical riskhigh

Using a non-safety capacitor or one with insufficient voltage rating is a critical failure risk.

Package riskmedium

Incorrect lead pitch will prevent assembly. Verify 27.5mm spacing.

Sourcing risklow

X2 safety capacitors are a common component type from multiple vendors.

Can it be replaced directly?

No verified direct drop-in replacement is available without review. The KYET PX225K2C2705 is a form-fit-function match, but requires checking safety certifications for your region.

Best replacement path

The KYET PX225K2C2705 is a strong candidate, matching key electricals and package dimensions. Review its safety certifications before use.

Main risk

The primary risk is package mismatch or using a non-safety capacitor. Ensure any alternative has an X2 rating and matches the 27.5mm lead pitch.

Recommended alternatives

Strong functional and form-factor match, but requires review of safety certifications for specific applications.

View details

Alternative comparison matrix

Feature / factor	MPX225K31F2KN20800	PX225K2C2705	PX225K2C2203	Compatibility / risk
Package	Radial, P=27.5mm	Radial, 27.5mm Lead Pitch	Radial, 22.5mm Lead Pitch	Radial, 27.5mm Lead Pitch / Radial, 22.5mm Lead Pitch — Package type and lead pitch match.; PX225K2C2203: Lead pitch does not match, requires PCB change.
Voltage	310V	310.0V	310.0V	310.0V — AC voltage rating matches.; PX225K2C2203: AC voltage rating matches.
Capacitance	2.2e-06F	2.2e-06F	2.2e-06F	2.2e-06F — Capacitance matches.; PX225K2C2203: Capacitance matches.
Application	UL, CUL, VDE, ENEC, KC, CQC	CQC, ENEC, cULus	-	CQC, ENEC, cULus — Candidate is missing VDE and KC certifications.

Application & sourcing insights

Questions & answers

The best alternative identified is the KYET PX225K2C2705. It matches the 2.2µF capacitance, 310VAC rating, ±10% tolerance, and 27.5mm radial package. However, you must verify its safety certifications (CQC, ENEC, cULus) are sufficient for your product.