Q13FC13500004

The EPSON Q13FC13500004 is a 32.768 kHz crystal unit in Epson's FC-135 series. It has a nominal load capacitance of 12.5 pF, a frequency tolerance of ±20 ppm at +25°C (measured at a 0.1 µW drive level), and an operating temperature range of -40°C to +85°C. The crystal has external dimensions of 3.2 ±0.1 mm × 1.5 ±0.1 mm × 0.8 ±0.1 mm, a maximum drive level of 0.5 µW, a maximum motional resistance of 70 kΩ, and a first-year frequency aging specification of ±3 ppm at +25°C.

The Q13FC13500004 is a 32.768 kHz crystal unit designed to pair with oscillator circuits built for a 12.5 pF load capacitance and a drive level of 0.1 µW typical (0.5 µW maximum). Designers should confirm their oscillator or RTC circuit is specified for these values before use.

The crystal is specified for operation from -40°C to +85°C. Its frequency tolerance is ±20 ppm at +25°C, with a turnover temperature of 25°C (typical) and a parabolic coefficient of -0.04 × 10⁻⁶/°C². The specified first-year frequency aging is ±3 ppm at +25°C, and the maximum drive level is 0.5 µW.

The datasheet specifies a 12.5 pF load capacitance, a maximum drive level of 0.5 µW, and provides a recommended PCB footprint for the device. The oscillator circuit should be designed within these limits.

The EPSON Q13FC13500004 is a 32.768 kHz crystal unit rated for -40°C to +85°C operation, with a first-year frequency aging of ±3 ppm at +25°C and a frequency tolerance of ±20 ppm at +25°C. Suitability for a particular application depends on whether these frequency, stability, and temperature characteristics meet the requirements of the target design.