Needs validationlow risk
Strong form-fit alternative with tighter tolerance and comparable temperature characteristics.
Best Alternatives to R08E1B222MN0B0S0N0
R08E1B222MN0B0S0N0 is a 2.2nF, 2kV high-voltage ceramic disc capacitor from STE. Several alternatives are available, with the strongest being TDK's CK45-B3DD222KYVNA, which offers improved tolerance in the same package type.
AI replacement insight
Electrical riskmedium
Dielectric mismatch can cause capacitance to vary with temperature, affecting circuit performance. This is the main risk.
Package risklow
Multiple candidates share the same 'Disc' package, but lead spacing and body dimensions must be verified from datasheets.
Can it be replaced directly?
Yes, TDK's CK45-B3DD222KYVNA is a strong form-fit candidate with a matching package, voltage, and tighter tolerance. Its 'B' dielectric offers similar or better temperature stability.
Best replacement path
TDK's CK45-B3DD222KYVNA is the best available alternative. It matches the package and voltage, while offering a tighter tolerance and a comparable 'B' class dielectric, which is an upgrade over the target's Y5P.
Main risk
The primary risk is mismatch in the dielectric's temperature characteristics. Several alternatives use Y5U or Y5V dielectrics, which are significantly less stable over temperature than the target's Y5P.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | R08E1B222MN0B0S0N0 | CK45-B3DD222KYVNA | A09F1D222MN0B0S0N0 | S07F1E222MN0B0S0N0 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Disc | Disc | Disc | Disc | Disc — Same through-hole disc package. Verify lead spacing.; A09F1D222MN0B0S0N0: Same through-hole disc package. Verify lead spacing.; S07F1E222MN0B0S0N0: Same through-hole disc package. Verify lead spacing.; T08F1D222MN0B0S0N0: Same through-hole disc package. Verify lead spacing. |
| Voltage | 2000.0V | 2000.0V | 6000.0V | 3000.0V | 2000.0V / 6000.0V / 3000.0V / 4000.0V — Voltage rating matches the target.; A09F1D222MN0B0S0N0: Significantly higher voltage rating provides more margin.; S07F1E222MN0B0S0N0: Higher voltage rating provides more margin.; T08F1D222MN0B0S0N0: Higher voltage rating provides more margin. |
| Tolerance | 20.0% | 10.0% | - | - | 10.0% / 20.0% — Tighter tolerance provides better precision.; T08F1D222MN0B0S0N0: Tolerance matches the target. |
| Dielectric | Y5P | B | Y5V | Y5U | B / Y5V / Y5U — 'B' dielectric offers similar or better temperature stability than 'Y5P'.; A09F1D222MN0B0S0N0: Y5V has significantly worse temperature stability (+22%/-82%) than Y5P (±10%).; S07F1E222MN0B0S0N0: Y5U has worse temperature stability (+22%/-56%) than Y5P (±10%).; T08F1D222MN0B0S0N0: Y5V has significantly worse temperature stability (+22%/-82%) than Y5P (±10%). |
Application & sourcing insights
Questions & answers
The best alternative to R08E1B222MN0B0S0N0 is TDK's CK45-B3DD222KYVNA. It offers a matching package, voltage rating, and capacitance, with the benefit of a tighter tolerance (±10%) and a comparable 'B' class dielectric.