Is there a pin-compatible replacement for KP103J2G0501?

No pin-compatible replacements have been verified. All reviewed candidates have a different lead pitch (e.g., 7.5mm, 10mm, 15mm) compared to the target's 5mm.

What risks should I check before replacing KP103J2G0501?

The main risks are mechanical and electrical. The package lead pitch is different on all alternatives, requiring PCB redesign. Also, check if the alternative's series (e.g., safety cap, high-current) is suitable for your application.

KP103J2G0501 Alternatives, Datasheet & Cross Reference | KYET

KP103J2G0501 is a 400V 10nF polypropylene film capacitor with a 5mm lead pitch. While no direct drop-in replacements have been identified, several functional alternatives with different package sizes are available but require board redesign.

AI replacement insight

Package riskhigh

All alternatives have a different lead pitch (7.5mm, 10mm, 15mm) vs the target's 5mm, requiring PCB redesign.

Electrical riskmedium

Alternatives may be different capacitor series (safety, high-current) which could have different performance characteristics.

Sourcing risklow

Multiple functional alternatives from the same manufacturer are available.

Can it be replaced directly?

No direct, pin-compatible replacement for KP103J2G0501 has been confirmed in this review.

Best replacement path

Source functional alternatives and adapt the PCB layout to accommodate a different lead pitch.

Main risk

Package mismatch is the primary risk, as all viable alternatives have a different lead pitch, preventing drop-in replacement.

Recommended alternatives

Functional alternate with higher voltage but different package and application focus. Requires board redesign.

View details

Alternative comparison matrix

Feature / factor	KP103J2G0501	MPBH103J3A0701	PS103J3C1502	PX103K2C1002	Compatibility / risk
Package	Radial, 5mm Lead Pitch	Box-type, 7.5mm Lead Pitch	Radial, 15mm Lead Pitch	Radial, 10mm Lead Pitch	Box-type, 7.5mm Lead Pitch / Radial, 15mm Lead Pitch / Radial, 10mm Lead Pitch — Not a drop-in replacement; requires PCB change.; PS103J3C1502: Not a drop-in replacement; requires PCB change.; PX103K2C1002: Not a drop-in replacement; requires PCB change.
Voltage	400V	1000V	1600V	310VAC (X2 Safety)	1000V / 1600V / 310VAC (X2 Safety) — Significantly higher voltage rating.; PS103J3C1502: Significantly higher voltage rating.; PX103K2C1002: Different type (AC safety vs DC general purpose).
Temperature	-40°C to +105°C	-40°C to +100°C	-40°C to +100°C	-40°C to +110°C	-40°C to +100°C / -40°C to +110°C — Slightly lower maximum temperature.; PS103J3C1502: Slightly lower maximum temperature.; PX103K2C1002: Wider operating range.
Application	CBB22 (General Purpose)	MPBH (High-Frequency)	CBB81 (High Current)	-	MPBH (High-Frequency) / CBB81 (High Current) — Different series intended for high-frequency resonant circuits.; PS103J3C1502: Different series intended for high-current applications.
Tolerance	±5%	-	-	±10%	±10% — Wider tolerance may affect circuit precision.

Application & sourcing insights

Questions & answers

No direct drop-in replacement is available due to package differences. Candidates like PS103J3C1502 offer higher voltage but require board layout changes due to a wider lead pitch.