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Product Detailed Parameters
- Description：XTAL OSC XO 50.0000MHZ CMOS SMD
- Series：QTM325
- Mfr：QST
- Package：Tape & Reel (TR)
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：50 MHz
- Function：Enable/Disable
- Output：CMOS
- Voltage - Supply：1.8V
- Frequency Stability：±50ppm
- Absolute Pull Range (APR)：-
- Operating Temperature：-40°C ~ 85°C
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：10mA
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.126" L x 0.098" W (3.20mm x 2.50mm)
- Height - Seated (Max)：0.043" (1.10mm)
- Supplier Device Package：4-VDFN (3.2x2.5)
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Overview
The QTM325-50.000MDE-T is a CMOS output crystal oscillator manufactured by QST, operating at a nominal frequency of 50.000 MHz. It features a standard supply voltage range and utilizes a surface-mount package with dimensions of 3.20mm x 2.50mm. The device exhibits a frequency stability of ±50ppm and operates within a temperature range of -40°C to +85°C. It is designed for applications requiring precise timing signals in compact electronic systems.
Feature Summary
- CMOS output signal generation for digital logic compatibility
- Compact 3.2x2.5mm surface-mount footprint
- Wide industrial temperature operation capability
Applications
- General-purpose digital timing circuits
- Microcontroller clock sources
- Communication interface synchronization
Procurement Notes
Verify the specific supply voltage requirements against the target circuit design, as variations exist within the QTM325 series. Confirm that the ±50ppm frequency stability meets the system's timing tolerance needs. Ensure the PCB layout supports the 4-SMD package dimensions and thermal characteristics defined in the official datasheet for reliable performance.
Selection Notes
Select this component when a 50MHz CMOS clock source is required in a small form factor. Consider the ±50ppm stability limit for application suitability. Compare against other QTM325 variants if different frequencies or tighter stability specifications are needed. Verify power consumption constraints align with the device's maximum supply current rating.
Part Context
This part belongs to the QTM325 series of surface-mount oscillators from QST. The series offers various frequencies and packages, providing flexibility for embedded timing applications. The QTM325-50.000MDE-T specifically targets the 50MHz market segment with standard CMOS outputs.
Replacement Considerations
Direct substitutes may include other QTM325 series parts with identical pinout and electrical characteristics but different frequencies. Cross-reference with manufacturer-approved replacement lists for exact functional equivalence.
