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Product Detailed Parameters
- Description：112.5 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：112.5 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 18QHTF21-112.500-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a frequency of 112.5 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, no lead package, suitable for surface-mount applications.
Feature Summary
- Supports enable/disable functionality for power management
- Utilizes LVCMOS output logic for digital interface compatibility
- Designed with a 4-SMD no lead package for surface mounting
Applications
- General purpose clock generation
- Digital signal processing systems
- Communication equipment timing
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 no lead footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly processes.
Selection Notes
Select this component when a 112.5 MHz clock source is required with low voltage operation. Consider the enable pin feature if dynamic power saving is necessary. Compare package dimensions against available board space. Verify compatibility with downstream logic levels accepting LVCMOS signals to ensure reliable signal integrity across the operating temperature range.
Part Context
This part belongs to the Mercury Electronics 18QHTF21 series of standard XO oscillators. The series offers various frequencies with consistent 1.8V operation and LVCMOS outputs. The suffix OE indicates specific packaging or tape-and-reel configuration options provided by the manufacturer for automated assembly integration.
Replacement Considerations
Direct substitutes within the same series include other frequency variants such as 18QHTF21-117.675-OE or 18QHTF21-86.8875-OE, provided the frequency difference is acceptable. Cross-brand replacements require matching LVCMOS logic, 1.8V supply, and 4-SMD no lead package dimensions.
