Is there a pin-compatible replacement for PX104K2C0702?

No, a verified pin-compatible replacement is not currently listed. The closest physical match, MPX104K31B4KN20600, has a lower primary voltage rating and requires engineering review before use.

What risks should I check before replacing PX104K2C0702?

Before replacing, you must verify two key aspects: 1) The package lead pitch must match your PCB layout (7.5mm). 2) The replacement must be an X2 safety capacitor with a voltage rating of at least 310VAC to avoid electrical failure.

PX104K2C0702 Alternatives, Datasheet & Cross Reference | KYET

Finding a substitute for the KYET PX104K2C0702, a 100nF 310VAC X2 safety capacitor, requires careful matching of its safety rating, voltage, and 7.5mm lead pitch. While no direct drop-in replacements were found, functional alternatives exist with tradeoffs in package or voltage rating.

AI replacement insight

Electrical riskhigh

Using a part with a lower voltage rating (e.g., 275VAC) can lead to premature failure.

Package riskmedium

Candidates with a different lead pitch (e.g., 10mm) will not fit the PCB without modification.

Can it be replaced directly?

No, a direct, verified pin-to-pin replacement for PX104K2C0702 is not available in the current catalog. All candidates have either electrical or mechanical differences.

Best replacement path

No direct drop-in replacement was found. MPX104K31B4KN20600 is a form-fit match but has a lower voltage rating. PX104K2C1007 is an electrical match but requires a different footprint.

Main risk

The primary risks are either mechanical incompatibility (wrong lead pitch) or electrical overstress (lower voltage rating).

Recommended alternatives

Electrically equivalent but has a different lead pitch (10mm), requiring board modification.

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Alternative comparison matrix

Feature / factor	PX104K2C0702	PX104K2C1007	MPX104K31B4KN20600	Compatibility / risk
Package	Radial, 7.5mm Lead Pitch	Radial, 10mm Lead Pitch	Radial, 7.5mm Pitch	Radial, 10mm Lead Pitch / Radial, 7.5mm Pitch — Candidate has a wider lead pitch and will not fit the target's footprint.; MPX104K31B4KN20600: Candidate package is form-fit compatible.
Voltage	310VAC	310VAC	275VAC (up to 310VAC)	310VAC / 275VAC (up to 310VAC) — matched; MPX104K31B4KN20600: Candidate has a lower primary voltage rating.
Application	X2 Safety Capacitor	X2 Safety Capacitor	X2 Safety Capacitor	X2 Safety Capacitor — Both are X2 safety rated capacitors.; MPX104K31B4KN20600: Both are X2 safety rated capacitors.
Capacitance	100nF	100nF	100nF	100nF — matched; MPX104K31B4KN20600: matched
Tolerance	±10%	-	±10%	±10% — matched

Application & sourcing insights

Questions & answers

No single 'best' alternative was found. If your board can accommodate a 10mm lead pitch, PX104K2C1007 is an electrical match. If the 7.5mm pitch is required, MPX104K31B4KN20600 is a physical match but its lower voltage rating must be verified for your application.