
A 32.768kHz crystal with different package and electricals, requiring circuit and PCB redesign for use.
Q13MC30620006 is a 32.768 kHz tuning fork crystal from EPSON in an MC-306 SMD package. Finding a direct, pin-compatible replacement requires matching the package, load capacitance, and ESR.
No candidates match the MC-306 package.
The only frequency-matching candidate has different load capacitance and higher ESR.
The target part is active and this type of crystal is common.
No direct replacement found. All candidates failed on critical package or electrical parameters.
Search for 32.768 kHz crystals in an MC-306 package with 6pF load capacitance and ESR ≤ 50kΩ.
The primary risk is a combination of physical and electrical incompatibility, requiring a full redesign.

A 32.768kHz crystal with different package and electricals, requiring circuit and PCB redesign for use.
| Feature / factor | Q13MC30620006 | SC-20S,32.768kHz,20PPM,9pF | Alt 2 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Frequency | 32.768 kHz | 32.768 kHz | 32.768 kHz — Matches target frequency. | ||
| Load Capacitance | 6 pF | 9 pF | 9 pF — Requires recalculating external capacitors. | ||
| Esr | 50 kΩ Max. | 90 kΩ Max. | 90 kΩ Max. — Higher ESR increases startup risk. | ||
| Package | SMD (MC-306) 8.0x3.8mm | SMD 2.0x1.2mm | SMD 2.0x1.2mm — Not physically compatible. | ||
| Pin Count | 4 | 2 | 2 — Pinout is incompatible. |
Currently, no direct drop-in replacements have been identified. Alternatives like the Seiko SC-20S series match the frequency but require a complete redesign of the PCB layout and oscillator circuit due to different package, load capacitance, and ESR.