Is there a pin-compatible replacement for CY1152ME1IEF46L2A2?

Yes, parts like CY1102ME1PEF45W2P0 share the same radial package and 10mm lead spacing. However, their electrical parameters, specifically capacitance, differ and must be evaluated for your application.

What risks should I check before replacing CY1152ME1IEF46L2A2?

The main risk is the capacitance difference. Using a lower capacitance (1.0nF vs 1.5nF) can affect EMI filtering performance. Always verify that the substitute meets your system's noise suppression and safety requirements.

CY1152ME1IEF46L2A2 Alternatives, Datasheet & Cross Reference | Dersonic

Reviewing alternatives for the Dersonic CY1152ME1IEF46L2A2, a 1.5nF 400VAC Y1 safety capacitor. Key considerations for substitutes are maintaining the Y1 safety rating and package, while capacitance may vary.

AI replacement insight

Electrical riskmedium

Lower capacitance may affect EMI filtering. Requires circuit analysis.

Package risklow

Candidates share the same package and lead spacing.

Can it be replaced directly?

No direct, 1-to-1 replacements were identified. All viable candidates have lower capacitance and require engineering validation.

Best replacement path

Parametric alternatives with lower capacitance.

Main risk

Reduced EMI filtering performance due to lower capacitance.

Recommended alternatives

Form-fit compatible Y1 safety capacitor with lower capacitance (1.0nF vs 1.5nF).

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Alternative comparison matrix

Feature / factor	CY1152ME1IEF46L2A2	CY1102ME1PEF45W2P0	CY1102KE1IEB49H2A2	Compatibility / risk
Package	Radial, 10mm Lead Spacing	Radial, 10mm Lead Spacing	Radial, 10mm Lead Spacing	Radial, 10mm Lead Spacing — Form and fit match.; CY1102KE1IEB49H2A2: Form and fit match.
Capacitance	1.5nF	1.0nF	1.0nF	1.0nF — Candidate capacitance is 33% lower.; CY1102KE1IEB49H2A2: Candidate capacitance is 33% lower.
Voltage	400.0V	400.0V	-	400.0V — AC voltage rating matches.
Dielectric	Y5V	Y5V	Y5P	Y5V / Y5P — Temperature characteristic matches.; CY1102KE1IEB49H2A2: Different dielectric may have different temperature performance.
Tolerance	±20.0%	-	±10.0%	±10.0% — Tighter tolerance is generally acceptable.

Application & sourcing insights

Questions & answers

No direct drop-in replacement was found. Several Dersonic parts like CY1102ME1PEF45W2P0 are form-fit compatible but have a lower capacitance of 1.0nF instead of 1.5nF, requiring engineering review.