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Product Detailed Parameters
- Description：70.0686 MHz XO 1.8V 2.0X1.6MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：70.0686 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)：26mA
- 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 18QHTF21-70.0686-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 70.0686 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.
Feature Summary
- LVCMOS output interface
- Enable/Disable control functionality
- Surface-mount SMD package
Applications
- Digital signal processing systems
- Communication equipment timing
- Embedded system clock sources
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 footprint matches your PCB layout dimensions. Check for any RoHS compliance documentation if required by your manufacturing standards. Validate the enable pin logic level compatibility with your controlling microcontroller.
Selection Notes
Select this component when a stable 70.0686 MHz reference is needed with low power consumption. The LVCMOS output is suitable for direct interfacing with digital logic families operating at 1.8V. Consider the enable feature if dynamic power saving is required during idle periods. The small form factor makes it ideal for space-constrained portable or industrial devices.
Part Context
This oscillator belongs to Mercury Electronics' series of standard XO units. The company specializes in quartz crystal frequency control products. This model represents a specific frequency variant within their broader portfolio of surface-mount oscillators designed for general-purpose electronic applications.
Replacement Considerations
Direct substitutes must match the 70.0686 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical specifications before swapping. Consult manufacturer cross-reference lists for verified alternatives.
