Is there a pin-compatible replacement for Q13MC30610003?

Several parts share the same MC-306 package and pinout, but differ in key electrical parameters like ESR or load capacitance. No direct pin-for-pin electrical match was found that could be considered a drop-in replacement without review.

What risks should I check before replacing Q13MC30610003?

You must verify your circuit's tolerance for higher ESR (up to 70kΩ), which can impact oscillator startup margin. If choosing an alternative with a different load capacitance, you must redesign the external capacitor network.

Q13MC30610003 Alternatives, Datasheet & Cross Reference | EPSON

The EPSON Q13MC30610003 is a standard 32.768 kHz tuning fork crystal in an MC-306 package. Finding a replacement requires matching frequency, load capacitance (12.5 pF), and ESR (50 kΩ max).

AI replacement insight

Electrical riskhigh

Key parameters like ESR and Load Capacitance differ in available alternatives, impacting circuit performance.

Package risklow

Alternatives in the same MC-306 package are available.

Can it be replaced directly?

No direct drop-in replacement was found. All close alternatives have either a higher ESR or a different load capacitance, both of which require engineering review.

Best replacement path

Use a candidate with matching load capacitance (12.5pF) but verify the circuit can tolerate a higher ESR (up to 70kΩ).

Main risk

The main risks are increased ESR affecting oscillator startup margin, or a mismatched load capacitance causing frequency error and requiring circuit redesign.

Recommended alternatives

Close alternative from the same manufacturer with identical key specs except for a higher ESR.

View details

Alternative comparison matrix

Feature / factor	Q13MC30610003	Q13MC30620003	KMA3276812520	Q13MC30620006	Compatibility / risk
Package	MC-306	MC-306	MC-306	SMD (MC-306)	MC-306 / SMD (MC-306) — Package matches.; KMA3276812520: Package matches.; Q13MC30620006: Package matches.
Frequency	32.768 kHz	32.768 kHz	32.768 kHz	32.768 kHz	32.768 kHz — matched; KMA3276812520: matched; Q13MC30620006: matched
Load Capacitance	12.5 pF	12.5 pF	12.5 pF	6 pF	12.5 pF / 6 pF — matched; KMA3276812520: matched; Q13MC30620006: Requires redesign of external loading capacitors.
Esr	50 kΩ Max	70 kΩ Max	70 kΩ Max	50 kΩ	70 kΩ Max / 50 kΩ — Higher ESR may affect oscillator startup margin.; KMA3276812520: Higher ESR may affect oscillator startup margin.; Q13MC30620006: matched
Temperature	-40°C to +85°C	-40°C to +85°C	-	-	-40°C to +85°C — matched

Application & sourcing insights

Questions & answers

EPSON's Q13MC30620003 is a close alternative from the same manufacturer, but has a higher ESR (70kΩ vs 50kΩ). This requires circuit verification to ensure proper oscillator startup.