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Product Detailed Parameters
- Description：1.12 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：1.12 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)：21mA
- 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 18QHTF21-1.120-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.12 MHz and utilizes LVCMOS output logic. The component requires a 1.8V supply voltage and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 7.0mm x 5.0mm.
Feature Summary
- Integrates enable/disable functionality for power management
- Provides stable LVCMOS clock signals
- Designed for low-profile surface-mount applications
Applications
- General clock signal generation
- Embedded system timing references
- Digital circuit synchronization
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 7.0x5.0mm footprint matches your PCB layout constraints. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliability.
Selection Notes
Select this component when a precise 1.12 MHz clock source is required with low power consumption capabilities. The integrated enable pin allows for dynamic power control, making it suitable for battery-operated devices. Consider the physical size constraints, as the 7.0x5.0mm package offers a balance between stability and space efficiency compared to smaller alternatives.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The series includes various frequencies and packages, catering to diverse electronic needs. Mercury Electronics has been a pioneer in the crystal industry since 1973, providing reliable components for global markets.
Replacement Considerations
Direct substitutes may include other 1.12 MHz LVCMOS oscillators in similar SMD packages from different manufacturers. Ensure compatibility regarding supply voltage, current consumption, and enable logic levels. Verify that the replacement part meets the same temperature range and stability specifications required by the application.
