32.768KHz crystal oscillator is widely used frequency is 32.768Khz, the main role is to provide the product timing circuit reference signal, accurate one-second timing, the other real-time clock crystal is generally 32.768K or its frequency.
| Picture | Series | Package Size | Output Leve | Frequency Range | Supply Voltage | Temperature Range | Frequency stability | Shopping | RoHS | Pb Free | |
|---|---|---|---|---|---|---|---|---|---|---|---|
 | 1CK|SMD2016 | 2.0×1.6×0.8 | CMOS | 32.768 | 1.8V ; 3.3V | -20 to +70 -40 to +85 | ±10ppm | | |||
 | 2CK|SMD2520 | 2.5×2.0×0.9 | CMOS | 32.768 | 1.8V ; 3.3V | -20 to +70 -40 to +85 | ±20ppm | | |||
 | 3CK|SMD3225 | 3.2×2.5×1.0 | CMOS | 32.768 | 1.8V；3.3V；5V | -20 to +70 -40 to +85 | ±20ppm | | |||
 | 5CK|SMD5032 | 5.0×3.2×1.2 | CMOS | 32.768 | 1.8V；3.3V；5V | -20 to +70 -40 to +85 | ±20ppm | | |||
 | 7CK|SMD7050 | 7.0×5.0×1.4 | CMOS | 32.768 | 1.8V；3.3V；5V | -20 to +70 -40 to +85 | ±20ppm | |
