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Product Detailed Parameters
- Description：106.666666 M XO 1.8V 2.0X1.6 OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：106.666666 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 18QHTF21-106.666666-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 106.666666 MHz with an LVCMOS output logic level. The device 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 2.0 x 1.6 mm. The component supports an operating temperature range of -40°C to +85°C and typically exhibits a frequency stability of ±50ppm.
Feature Summary
- Integrated enable/disable functionality for power management
- Compact surface-mount design suitable for space-constrained layouts
- LVCMOS output compatibility for digital interfacing
Applications
- High-speed data communication interfaces
- Network equipment clocking
- Embedded system timing references
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail is stable within the specified operating temperature range. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to prevent assembly issues. Cross-reference the datasheet for any specific soldering profile recommendations.
Selection Notes
Select this component when a precise 106.666666 MHz clock signal is required for LVCMOS-compatible digital circuits. Consider the 1.8V supply constraint and the need for enable/disable control during system design. Evaluate the thermal environment to ensure operation within the -40°C to +85°C range. Compare size constraints against alternative packages if space is limited.
Part Context
This part belongs to the 18QHTF21 series of low-profile crystal oscillators from Mercury Electronics. The series offers various frequencies and supply voltages, all sharing a common 4-SMD no-lead form factor. The 'OE' suffix indicates the inclusion of an output enable pin, providing additional control flexibility compared to standard continuous-output variants.
Replacement Considerations
Direct replacements must match the 106.666666 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify that substitute parts support the same enable/disable functionality and meet the -40°C to +85°C temperature rating. Check for equivalent frequency stability specifications.
