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Product Detailed Parameters
- Description：2.5X2.0 XO 1.8V 50PPM
- Series：QTM252J
- Mfr：QST
- Package：Tape & Reel (TR)
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：8.192 MHz
- Function：Enable/Disable
- Output：CMOS
- Voltage - Supply：1.8V
- Frequency Stability：±50ppm
- Absolute Pull Range (APR)：-
- Operating Temperature：-40°C ~ 105°C
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：22mA
- Ratings：AEC-Q100
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.098" L x 0.079" W (2.50mm x 2.00mm)
- Height - Seated (Max)：0.035" (0.90mm)
- Supplier Device Package：-
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Overview
The QTM252J-8.192MDJ-T is a surface-mount CMOS quartz oscillator manufactured by QST, operating at a nominal frequency of 8.192 MHz. It features a supply voltage of 1.8V and a maximum supply current of 22mA. The device offers a frequency stability of ±50ppm and supports an enable/disable function. It operates within a temperature range of -40°C to +105°C and utilizes a compact 2.5mm x 2.0mm package.
Feature Summary
- Surface-mount CMOS output compatibility for digital logic integration
- Low jitter and phase noise performance in a small form factor
- Enable/disable control functionality for power management
Applications
- Standard clock signal generation for embedded systems
- Timing reference for microprocessors and FPGAs
- Communication interface synchronization
Procurement Notes
Verify the specific suffix 'MDJ' confirms the 1.8V supply voltage requirement, as other variants in the series may support different voltages such as 3.3V. Ensure the order quantity matches the tape and reel packaging specifications provided by the distributor. Confirm that the ±50ppm frequency stability meets the system timing requirements before finalizing procurement.
Selection Notes
Select this component when a low-voltage 1.8V CMOS clock source is required with high frequency stability. The 2.5x2.0mm footprint suits space-constrained designs. Compare against similar models like the MBJ variant if a 3.3V supply is needed instead. Consider the operating temperature range of -40°C to 105°C for industrial or automotive environments.
Part Context
This part belongs to the QTM252J series of standard clock oscillators from QST. The series includes various frequency options and voltage configurations, such as 3.3V versions. The model designation indicates a specific frequency and voltage combination within this family of surface-mount quartz oscillators designed for precision timing applications.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official manufacturer cross-reference guides for verified alternatives.
