Microchip PureSilicon™ MEMS XO, 40 MHz, CMOS, 3.3V, ±50 ppm, 0°C–70°C, 4-SMD no-lead, Tape & Reel
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1033, PureSilicon™ |
| Mounting | Surface Mount |
| Supply voltage | 3.3V |
| Current - supply | 4mA (Typ) |
| Current - supply (Disable) | 1µA |
| Frequency | 40 MHz |
| Frequency stability | ±50ppm |
| Operating temperature | 0°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 | Tape & Reel (TR) |
| Function | Standby (Power Down) |
| Base resonator | MEMS |
| Case | 4-SMD, No Lead |
The DSC1033BC1-040.0000T is a 40 MHz MEMS-based XO (standard oscillator) from Microchip's PureSilicon™ series, delivering a CMOS output at 3.3 V with ±50 ppm frequency stability.
For a BOM that still needs this frequency and supply, the closest functional equivalent is another 40 MHz, 3.3 V, CMOS-output MEMS oscillator in the same 5.0×3.2 mm 4-SMD package — but pin compatibility must be verified against the specific footprint.
Yes, Microchip lists this part as Obsolete. There is no official drop-in replacement from Microchip. For a BOM that still needs a 40 MHz, 3.3 V, CMOS MEMS oscillator, you would need to qualify an alternative from another MEMS oscillator family in the same 5.0×3.2 mm 4-SMD footprint — pinout and function (standby) must be cross-checked.
Yes, the supply voltage is 3.3 V, and the output is CMOS — it connects directly to a 3.3 V logic input without level shifting.
As an obsolete part, there is no factory lead time. Availability is through independent surplus channels — confirmed at RFQ against specific lot quantities.