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Product Detailed Parameters
- Description：49.104 MHz XO 1.8V 2.0X1.6 MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：49.104 MHz
- Function：Enable/Disable
- Output：LVCMOS
- Voltage - Supply：1.8V
- Frequency Stability：±50ppm
- Absolute Pull Range (APR)：-
- Operating Temperature：-40°C ~ 85°C
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：23mA
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.079" L x 0.063" W (2.00mm x 1.60mm)
- Height - Seated (Max)：0.031" (0.80mm)
- Supplier Device Package：-
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Overview
The 18QHTF21-49.104-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 49.104 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.
Feature Summary
- LVCMOS output logic for digital interface compatibility
- Integrated enable/disable control functionality
- Compact 4-SMD no-lead surface mount package
Applications
- General purpose clock generation
- Digital signal processing timing
- Embedded system clock sources
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD footprint matches the PCB layout guidelines provided in the official datasheet to guarantee proper soldering and mechanical stability during assembly.
Selection Notes
Select this component when a low-profile surface-mount oscillator with LVCMOS outputs is required. The 1.8V operating voltage makes it suitable for modern low-power digital circuits. The enable pin allows for power management strategies in battery-operated devices. Consider the thermal characteristics and frequency stability needs relative to the application environment.
Part Context
This part belongs to the Mercury Electronics SMD oscillator series, which focuses on quartz-based timing solutions. The company specializes in frequency control products including crystals, oscillators, and filters. This specific model represents a standard XO variant within their portfolio, offering reliable performance for general electronic applications.
Replacement Considerations
Direct substitutes must match the 49.104 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package dimensions. Verify pinout compatibility and electrical specifications before substitution. Cross-reference with other manufacturers' equivalent parts ensuring identical form factor and functional parameters.
