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Product Detailed Parameters
- Description：2.5X2.0 XO 3.3V 50PPM
- Series：QTM252J
- Mfr：QST
- Package：Tape & Reel (TR)
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：4 MHz
- Function：Enable/Disable
- Output：CMOS
- Voltage - Supply：3.3V
- 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-4.000MBJ-T is a standard clock oscillator manufactured by QST Products, LLC. It features a CMOS output and operates at a nominal frequency of 4.000 MHz. The device supports a supply voltage of 3.3V with a maximum current consumption of 22mA. Frequency stability is rated at ±50ppm across an operating temperature range of -40°C to +105°C. The component utilizes a surface-mount SMD2520-4P package and includes an enable/disable function for power management.
Feature Summary
- CMOS output interface
- Enable/Disable control function
- Surface-mount SMD2520-4P package
Applications
- Precision timing applications in electronic circuits
- General-purpose clock signal generation
Procurement Notes
Verify the manufacturer designation carefully, as this specific part number appears associated with both TXC Corporation and QST Products in public listings. Confirm the exact supply voltage and package type against the official datasheet provided by the supplier. Ensure the enable/disable functionality aligns with system requirements before procurement.
Selection Notes
Select this component when a 4MHz CMOS clock source is required within a compact SMD2520 footprint. Consider the ±50ppm stability specification for timing accuracy needs. Verify compatibility with 3.3V logic levels and ensure the enable pin can be utilized if power saving is necessary. Check thermal performance within the specified -40°C to +105°C range.
Part Context
This oscillator belongs to the QTM252 series, characterized by low EMI and phase noise performance. The series offers various frequencies and supply voltages, including 1.8V and 3.3V options. The SMD2520 form factor allows for dense PCB layouts in portable and industrial electronics requiring reliable quartz-based timing.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other QTM252 series variants or similar SMD2520 oscillators from different manufacturers only after verifying electrical parameters and pinout compatibility.
