Is there a pin-compatible replacement for PE103J2A0502?

Several parts like MPE103J100V82CL0048 and KP103J2G0501 share the same 5mm radial lead pitch and are physically compatible. However, electrical differences like operating temperature or dielectric material mean they are not guaranteed drop-in replacements and require engineering review.

What risks should I check before replacing PE103J2A0502?

When replacing PE103J2A0502, check the substitute's maximum operating temperature, as many alternatives are rated lower than the target's 110°C. Also, verify the dielectric material (Polyester vs. Polypropylene) as this affects performance in AC or high-frequency circuits.

PE103J2A0502 Alternatives, Datasheet & Cross Reference | KYET

PE103J2A0502 is a 10nF 100V 5% metallized polyester film capacitor with a 5mm lead pitch. Alternatives exist but may require verifying differences in dielectric material or operating temperature.

AI replacement insight

Electrical riskmedium

Key risks are lower temperature ratings or different dielectric materials in substitutes.

Package risklow

Many candidates share the same 5mm radial package, making them physically compatible.

Can it be replaced directly?

No direct drop-in replacement has been identified. All candidates have parametric differences, primarily in operating temperature or dielectric material, requiring engineering review.

Best replacement path

Review candidates with matching package and capacitance, prioritizing those with Polyester dielectric and a temperature rating of 110°C or higher.

Main risk

The primary risk is substituting a part with a lower maximum operating temperature (e.g., 85°C) into an application designed for the target's 110°C rating, which could lead to premature failure.

Recommended alternatives

Physically compatible with matching electricals, but has a lower maximum temperature rating that requires review.

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Alternative comparison matrix

Feature / factor	PE103J2A0502	2A103J114CL016	MPE103J100V82CL0048	KP103J2G0501	Compatibility / risk
Package	Radial, 5mm Lead Pitch	Radial, 5mm Lead Pitch	Radial, 5mm Lead Pitch	Radial, 5mm Lead Pitch	Radial, 5mm Lead Pitch — Form factor matches.; MPE103J100V82CL0048: Form factor matches.; KP103J2G0501: Form factor matches.
Capacitance	10nF	10nF	10nF	-	10nF — matched; MPE103J100V82CL0048: matched
Voltage	100V	100V	100V	400V	100V / 400V — matched; MPE103J100V82CL0048: matched; KP103J2G0501: Higher voltage rating is acceptable.
Temperature	-40°C to +110°C	-40°C to +85°C	-55°C to +85°C	-40°C to +105°C	-40°C to +85°C / -55°C to +85°C / -40°C to +105°C — Lower max operating temperature.; MPE103J100V82CL0048: Lower max operating temperature.; KP103J2G0501: Slightly lower max temperature.
Dielectric	Metallized Polyester (MEF/CL21)	Polyester	Metallized Polyester	Metallized Polypropylene	Polyester / Metallized Polyester / Metallized Polypropylene — Dielectric type matches.; MPE103J100V82CL0048: Dielectric type matches.; KP103J2G0501: Different dielectric may affect performance.

Application & sourcing insights

Questions & answers

The best alternative depends on the application's constraints. For similar electrical function, MPE103J100V82CL0048 is a close match but has a lower temperature rating. For higher frequency use, KP103J2G0501 could work but uses a different dielectric.