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Product Detailed Parameters
- Description：2.5X2.0 LOW EMI CMOS QUARTZ OSCI
- Series：QTM252E
- Mfr：QST
- Package：Tape & Reel (TR)
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：24 MHz
- Function：Enable/Disable
- Output：CMOS (Low EMI)
- Voltage - Supply：3.3V
- Frequency Stability：±50ppm
- Absolute Pull Range (APR)：-
- Operating Temperature：-40°C ~ 125°C
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：10mA
- Ratings：-
- 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 QTM252E-24.000MBM-T is a standard CMOS oscillator manufactured by QST, operating at a frequency of 24 MHz. It utilizes a crystal base resonator and features low electromagnetic interference (EMI) output characteristics. The device supports a supply voltage of 3.3V with an enable/disable control function. Frequency stability is rated at ±50ppm, and it operates within a temperature range of -40°C to 125°C. Maximum supply current is 10mA. The component is housed in a compact 4-SMD, no-lead surface-mount package measuring 2.0mm x 1.6mm.
Feature Summary
- Low EMI CMOS output for reduced signal noise
- Integrated enable/disable control functionality
- Wide industrial temperature range operation
- Compact 4-SMD no-lead surface mount package
Applications
- General clock generation in embedded systems
- Digital signal processing circuits
- Communication interface modules
- Microcontroller clock sources
Procurement Notes
Verify the manufacturer designation carefully, as similar part numbers may be listed under TXC Corporation due to corporate relationships. Confirm the specific suffix 'MBM' matches the required pinout and specification sheet. Ensure the order quantity aligns with the available packaging options such as tape and reel or cut tape. Cross-reference the DigiKey part number 887-8WE-24.000MBM-TCT-ND for accurate sourcing details.
Selection Notes
Select this component when a 24 MHz clock source with low EMI is required for space-constrained designs. The 3.3V supply voltage compatibility makes it suitable for modern digital logic families. The wide temperature range (-40°C to 125°C) ensures reliability in harsh environments. Consider the ±50ppm stability requirement against system timing constraints before finalizing the design.
Part Context
This oscillator belongs to the QTM252E series, which includes various frequency variants and package sizes from QST. The 2.0x1.6mm form factor is designed for high-density PCB layouts. Similar models in the series may differ in frequency, voltage, or temperature rating. The QTM252E line emphasizes low power consumption and small footprint for portable and industrial applications.
Replacement Considerations
Direct substitutes include other 24 MHz low EMI CMOS oscillators in 4-SMD packages with compatible voltage and stability ratings. Verify pin compatibility and electrical specifications before substitution. Check if alternative manufacturers offer equivalent performance metrics.
