Is there a pin-compatible replacement for CY1102KE1IEB49H2A2?

No, a fully verified pin-compatible replacement is not available at this time. While several candidates have the same package and pin count, they either have different electrical parameters or missing data that requires engineering review.

What risks should I check before replacing CY1102KE1IEB49H2A2?

Before replacing, you must check the dielectric material's temperature characteristics (target is Y5P), tolerance (target is ±10%), and confirm the package lead spacing is identical. Using a part with a less stable dielectric like Y5V can impact circuit performance.

CY1102KE1IEB49H2A2 Alternatives, Datasheet & Cross Reference | Dersonic

Find and compare alternatives for the Dersonic CY1102KE1IEB49H2A2, a 1nF 400V Y1 safety capacitor. This guide analyzes potential replacements, highlighting key parametric differences and risks to ensure system compatibility.

AI replacement insight

Electrical riskmedium

Candidates may have wider tolerance or less stable dielectrics (Y5V vs Y5P).

Package risklow

Most candidates share the same package, but minor wording differences require verification.

Can it be replaced directly?

No direct, verified pin-to-pin replacement has been identified. All candidates have parametric differences or missing data requiring engineering review.

Best replacement path

The strongest candidate is 70Y10198, which matches capacitance and tolerance, but requires datasheet verification for its dielectric material and package details. For a fully specified but weaker option, consider CY1102ME1PEF45W2P0.

Main risk

The primary risk is substituting with a capacitor that has a less stable dielectric (e.g., Y5V instead of Y5P), which affects capacitance over temperature.

Recommended alternatives

A parametric alternative with the same package, capacitance, and voltage, but with wider tolerance and a different dielectric.

View details

Alternative comparison matrix

Feature / factor	CY1102KE1IEB49H2A2	CY1102ME1PEF45W2P0	70Y10198	Compatibility / risk
Package	Radial, 10mm Lead Spacing	Radial, 10mm Lead Spacing	Radial, 10mm Lead Pitch	Radial, 10mm Lead Spacing / Radial, 10mm Lead Pitch — matched; 70Y10198: Likely compatible, but wording differs. Verification needed.
Capacitance	1nF	1nF	1nF	1nF — matched; 70Y10198: matched
Tolerance	±10%	±20%	±10%	±20% / ±10% — Wider tolerance may affect circuit precision.; 70Y10198: matched
Voltage	400V	400V	400V (from summary)	400V / 400V (from summary) — matched; 70Y10198: Structured data missing, value from summary matches.
Dielectric	Y5P	Y5V	Unknown	Y5V / Unknown — Y5V has worse temperature stability than Y5P.; 70Y10198: Dielectric type is missing; affects temperature performance.

Application & sourcing insights

Questions & answers

The best potential alternative is KNSCHA 70Y10198, as it matches capacitance and tolerance. However, you must verify its datasheet for dielectric type and package compatibility before use.