Is there a pin-compatible replacement for MPB105J2J2201?

No pin-compatible replacement has been fully verified. Parts like PX105K2C2202 and MPX105K31E3KN15800 match the package and 22.5mm lead pitch, making them form-fit compatible, but key electrical parameters like tolerance and voltage type differ.

What risks should I check before replacing MPB105J2J2201?

Before replacing, you must verify two key risks. First, ensure the candidate's voltage rating (often AC for safety caps) is sufficient for your 630V DC application. Second, confirm that the wider ±10% tolerance is acceptable for your circuit's performance.

MPB105J2J2201 Alternatives, Datasheet & Cross Reference | KYET

Finding a substitute for the KYET MPB105J2J2201, a 1µF 630V film capacitor, involves matching its 22.5mm lead pitch and polypropylene dielectric. While form-fit candidates exist, they often differ in voltage type and tolerance, requiring careful review.

AI replacement insight

Electrical riskmedium

Voltage type and tolerance differ, requiring engineering review.

Package risklow

Candidates with 22.5mm lead pitch are physically compatible.

Can it be replaced directly?

No verified direct replacement exists. However, parts like PX105K2C2202 are form-fit compatible and warrant evaluation, noting their weaker tolerance and different voltage rating type.

Best replacement path

Search for 1µF film capacitors with a ≥630V DC rating and 22.5mm lead pitch. Safety-rated X2 capacitors are potential candidates but require engineering validation.

Main risk

The primary risks are electrical: mismatched voltage type (AC safety vs. DC) and a weaker tolerance (±10% vs. ±5%) which could impact circuit precision and reliability.

Recommended alternatives

Form-fit compatible film capacitor from the same manufacturer, but has weaker tolerance and a different voltage rating type.

View details

Alternative comparison matrix

Feature / factor	MPB105J2J2201	PX105K2C2202	MPX105K31E3KN15800	Compatibility / risk
Package	Box, 22.5mm Lead Pitch	Radial, 22.5mm Lead Pitch	Radial, 22.5mm Pitch	Radial, 22.5mm Lead Pitch / Radial, 22.5mm Pitch — Candidate is form and fit compatible.; MPX105K31E3KN15800: Candidate is form and fit compatible.
Capacitance	1µF	1µF	1µF	1µF — matched; MPX105K31E3KN15800: matched
Voltage	630VDC	310VAC (X2 Safety)	310VAC (X2 Safety)	310VAC (X2 Safety) — AC safety rating vs DC rating. Requires engineering review to confirm DC equivalent voltage.; MPX105K31E3KN15800: AC safety rating vs DC rating. Requires engineering review to confirm DC equivalent voltage.
Tolerance	±5%	±10%	±10%	±10% — Wider tolerance may affect circuit performance.; MPX105K31E3KN15800: Wider tolerance may affect circuit performance.
Temperature	-40°C to +100°C	-40°C to +110°C	-	-40°C to +110°C — Wider operating range.
Manufacturer	KYET	-	KNSCHA	KNSCHA — Cross-vendor alternative.

Application & sourcing insights

Questions & answers

The best alternatives found are form-fit compatible film capacitors like KYET PX105K2C2202. However, they have a weaker tolerance and a different voltage rating (AC safety vs. DC), which requires careful engineering review before use.