
Parametric alternative with different package, dielectric, and no safety rating. Not a drop-in.
Finding a substitute for the SMDY13225Y5P471K0, a 470pF 500VAC X1/Y1 safety capacitor, requires careful review of safety ratings and package dimensions. While several parts offer similar capacitance, none are direct drop-in replacements.
No candidates match the target's SMD safety package, requiring board redesign.
Using a non-safety capacitor is a critical failure. Temperature and dielectric mismatches also require review.
No direct replacement was found. All reviewed candidates have critical differences in package, safety rating, or operating temperature.
Search for another X1/Y1 safety capacitor with matching package and electrical specifications.
Loss of safety certification by using a non-safety-rated capacitor in an AC line application.

Parametric alternative with different package, dielectric, and no safety rating. Not a drop-in.
| Feature / factor | SMDY13225Y5P471K0 | CGA1206X7R471K102MT | TCC1206X7R471K202FT | TCC0805X7R471K102FT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 3225 (8.1x6.0mm) | 1206 | 1206 (3216 Metric) | 0805 (2012 metric) | 1206 / 1206 (3216 Metric) / 0805 (2012 metric) — Candidate package is much smaller and not a safety type.; TCC1206X7R471K202FT: Candidate package is much smaller and not a safety type.; TCC0805X7R471K102FT: Candidate package is significantly smaller and not a safety type. |
| Dielectric | Y5P | X7R | X7R | X7R | X7R — Different dielectric may affect performance; X7R is more temp-stable.; TCC1206X7R471K202FT: Different dielectric may affect performance; X7R is more temp-stable.; TCC0805X7R471K102FT: Different dielectric may affect performance; X7R is more temp-stable. |
| Voltage | 500.0V | 1000.0V | 2000.0V | 1000.0V | 1000.0V / 2000.0V — Candidate has a higher voltage rating.; TCC1206X7R471K202FT: Candidate has a higher voltage rating.; TCC0805X7R471K102FT: Candidate has a higher voltage rating. |
| Application | Safety Rated (X1/Y1) | General Purpose MLCC | General Purpose MLCC | General Purpose MLCC | General Purpose MLCC — Candidate is not safety rated for AC line applications.; TCC1206X7R471K202FT: Candidate is not safety rated for AC line applications.; TCC0805X7R471K102FT: Candidate is not safety rated for AC line applications. |
There are no direct drop-in replacements among the candidates reviewed. The best path is to find another surface-mount safety capacitor with an X1/Y1 rating, 470pF capacitance, ≥500VAC rating, and a matching 3225 (8.1x6.0mm) footprint.