Microchip DSC1121 series, XO (Standard), 50 MHz, CMOS output, ±25 ppm stability, -40°C to 105°C, AEC-Q100 qualified, 6-SMD no-lead package.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1121 |
| Mounting | Surface Mount |
| Supply voltage | 2.25V ~ 3.6V |
| Current - supply | 35mA |
| Current - supply (Disable) | 22mA |
| Frequency | 50 MHz |
| Frequency stability | ±25ppm |
| Operating temperature | -40°C~105°C |
| Size (Dimension) | 0.126\" L x 0.098\" W (3.20mm x 2.50mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | CMOS |
| Package | Tube |
| Ratings | AEC-Q100 |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-SMD, No Lead |
It outputs a CMOS clock signal and includes an Enable/Disable function for power savings.
Operates from 2.25 V to 3.6 V, covering common 2.5 V and 3.3 V rails.
Housed in a 6-SMD, No Lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm. The no-lead footprint requires a solder-paste stencil with aperture matching the pad geometry; no through-hole alignment needed.
Yes, it carries AEC-Q100 qualification, making it suitable for automotive-grade applications.
Yes, if the board expects a 50 MHz CMOS clock input from an XO. The DSC1121 is a MEMS-based oscillator, not a bare crystal — it includes the resonator and oscillation circuit in one package.
Both are 50 MHz MEMS XOs with CMOS output and similar supply ranges. The DSC1121 is AEC-Q100 qualified; the SiT8002BI may not carry the same automotive grade. Check the SiT8002BI datasheet for temperature range and stability before substituting.