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Product Detailed Parameters
- Description：120.0 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：120 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)：28mA
- 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 18QHTF21-120.000-OE is a crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 120.000 MHz and utilizes LVCMOS output logic. The device is designed for operation with a 1.8V supply voltage and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.
Feature Summary
- Supports Enable/Disable functionality for power management
- Utilizes LVCMOS output logic levels
- Available in hermetic ceramic leadless SMD packages
Applications
- General clock signal generation
- Digital system timing references
- Embedded electronic circuits
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD No Lead package footprint matches your PCB layout specifications to guarantee proper assembly and electrical connectivity.
Selection Notes
Select this component when a stable 120 MHz clock source is required with low voltage operation. Consider the LVCMOS interface compatibility with downstream digital logic. Evaluate the need for enable/disable control if power efficiency is a priority. Compare package dimensions against available board space constraints.
Part Context
This part belongs to the QHTF series from Mercury Electronics, which offers various hermetic ceramic leadless SMD packages. The series supports frequencies ranging from 1.0 MHz to 200 MHz across different supply voltages. Mercury Electronics has a history of manufacturing quartz crystals and frequency control products since 1973.
Replacement Considerations
Check datasheets for compatible parts within the same QHTF series offering identical 120.000 MHz frequency and 1.8V operation. Verify pinout compatibility and package dimensions for direct substitution. Ensure output logic type remains LVCMOS to maintain signal integrity.
