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Product Detailed Parameters
- Description：1.7 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：1.7 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 18QHTF21-1.700-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.7 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, suitable for surface-mount applications requiring precise timing signals.
Feature Summary
- LVCMOS output interface for digital logic compatibility
- Integrated enable/disable pin for power control
- Compact 4-SMD no-lead surface mount package
Applications
- General purpose clock signal generation
- Embedded system timing references
- Consumer electronics circuit synchronization
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 footprint matches the PCB layout silkscreen and solder mask definitions to prevent assembly errors during manufacturing.
Selection Notes
Select this component when a low-frequency 1.7 MHz reference is required with minimal power consumption due to the 1.8V operation. The enable feature allows for dynamic power saving in battery-operated devices. Consider the small form factor if space constraints are critical within the electronic assembly design.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on low-power crystal oscillators. The series typically offers various frequencies and voltage options, standardized in small SMD packages to support modern miniaturized electronic designs across industrial and consumer sectors.
Replacement Considerations
Direct substitutes must match the 1.7 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Verify pinout compatibility for the enable function. Cross-reference with other manufacturers offering similar low-profile XO components if availability is constrained.
