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Product Detailed Parameters
- Description：112.12 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：112.12 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 18QHTF21-112.120-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a frequency of 112.12 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The component features an enable/disable control pin for power management flexibility. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, designed for surface-mount applications requiring precise timing signals.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes enable/disable functionality for power optimization
- Compact 4-SMD no-lead surface mount package design
Applications
- Digital signal processing systems requiring precise clocking
- Communication equipment utilizing high-frequency timing references
- Embedded systems with space-constrained PCB layouts
Procurement Notes
Verify the specific suffix (OE vs PD) against official Mercury Electronics documentation to confirm functional differences, as ordering suffixes may indicate variations in specifications or packaging. Ensure the required frequency tolerance and load capacitance match the target circuit design before procurement. Cross-reference the datasheet for absolute maximum ratings to prevent operational failure.
Selection Notes
Select this component when a 1.8V supply voltage and LVCMOS interface are required for the application. Consider the 2.0x1.6mm footprint constraints during PCB layout planning. Evaluate the need for active enable/disable control versus always-on operation to optimize system power consumption. Confirm that the 112.12 MHz frequency aligns with the system's clock distribution requirements.
Part Context
This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series offers various frequencies and package sizes tailored for modern electronic devices. Mercury Electronics has a long history in the crystal industry, providing reliable timing solutions for global markets.
Replacement Considerations
Direct substitutes include other 112.12 MHz LVCMOS oscillators in 4-SMD 2.0x1.6mm packages from compatible manufacturers. Verify pinout compatibility and electrical parameters such as supply voltage and output swing. Check if alternative parts offer similar enable/disable functionality and temperature stability ratings.
