Microchip DSC1033 PureSilicon™ MEMS XO, 50 MHz, CMOS output, 3.3 V, ±50 ppm stability, -20°C~70°C, 4-SMD no-lead package
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1033, PureSilicon™ |
| Mounting | Surface Mount |
| Supply voltage | 3.3V |
| Current - supply | 4mA (Typ) |
| Current - supply (Disable) | 1µA |
| Frequency | 50 MHz |
| Frequency stability | ±50ppm |
| Operating temperature | -20°C~70°C |
| Size (Dimension) | 0.197\" L x 0.126\" W (5.00mm x 3.20mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | CMOS |
| Package | Tube |
| Function | Standby (Power Down) |
| Base resonator | MEMS |
| Case | 4-SMD, No Lead |
The DSC1033BE1-050.0000: The ±50 ppm frequency stability over -20°C to 70°C covers most industrial logic and MCU applications, but falls short of the ±25 ppm or tighter needed for 100BASE-TX or PCIe reference clocks.
Microchip lists the DSC1033BE1-050.0000 as Obsolete. The 4-SMD, No Lead package is common across the DSC1033 family, so a pin-compatible sibling from the same series may substitute if the frequency and stability match.
Microchip has not published an official successor. The DSC1033 family shares the same 4-SMD, No Lead footprint, so a sibling part with the same package, supply voltage, and output type may drop in — but frequency and stability must match the BOM requirement. Confirm with the datasheet before committing.