X1A0000610021
EPSON
Needs validationlow risk
Pin-compatible alternative with matching load capacitance and tolerance, but slightly higher ESR requires review.
Best Alternatives to TCXM32768K2NGDCZT2T
Finding a replacement for the Yajingxin TCXM32768K2NGDCZT2T 32.768kHz crystal requires matching the 12.5pF load capacitance and 2.0x1.2mm package. Several alternatives exist, with the best options offering a pin-compatible footprint but may require checking for minor parametri...
AI replacement insight
Package riskhigh
Several alternatives have different footprints, requiring a PCB redesign.
Electrical riskmedium
Load capacitance and ESR differences must be evaluated to ensure frequency accuracy and startup.
Can it be replaced directly?
Direct replacement for TCXM32768K2NGDCZT2T should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The most direct path is using a part with the same package and load capacitance, like the EPSON X1A0000610021, while verifying the impact of its slightly higher ESR.
Main risk
The main risks are selecting a part with a different package footprint or load capacitance, which would require hardware changes.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | TCXM32768K2NGDCZT2T | X1A0000610021 | X1A0001410005 | CM315DL32768DZFT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 2.0x1.2mm | 2.05x1.2mm | 3.2x1.5mm | 3.2x1.5mm | 2.05x1.2mm / 3.2x1.5mm / 2.0x1.2mm — Package dimensions match, enabling form-fit replacement.; X1A0001410005: Different package footprint requires PCB redesign.; CM315DL32768DZFT: Different package footprint requires PCB redesign.; SC-20S,32.768kHz,20PPM,9pF: Package dimensions match, enabling form-fit replacement. |
| Load Capacitance | 12.5 pF | 12.5 pF | 12.5 pF | 12.5 pF | 12.5 pF / 9 pF — Identical load capacitance ensures frequency accuracy without circuit changes.; X1A0001410005: Load capacitance is a perfect match.; CM315DL32768DZFT: Load capacitance is a perfect match.; SC-20S,32.768kHz,20PPM,9pF: Different load capacitance will affect frequency accuracy and requires circuit re-evaluation. |
| Tolerance | ±20 ppm | ±20 ppm | ±10 ppm | - | ±20 ppm / ±10 ppm — Frequency tolerance is identical.; X1A0001410005: Tighter frequency tolerance is an upgrade. |
| Esr | 80 kΩ Max | 90 kΩ Max | 50 kΩ Max | 50 kΩ Max | 90 kΩ Max / 50 kΩ Max — Higher ESR may affect oscillator startup margin; review is needed.; X1A0001410005: Lower ESR provides better oscillator performance margin.; CM315DL32768DZFT: Lower ESR provides better oscillator performance margin.; SC-20S,32.768kHz,20PPM,9pF: Higher ESR may affect oscillator startup margin. |
| Temperature | -40°C to +85°C | -40 to +85 °C | - | - | -40 to +85 °C — Operating temperature range is identical. |
Application & sourcing insights
Questions & answers
Verified drop-in options for TCXM32768K2NGDCZT2T are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.