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Product Detailed Parameters
- Description：66.155 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：66.155 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 18QHTF21-66.155-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 66.155 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V 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 from -40°C to 85°C and holds RoHS compliance status.
Feature Summary
- Integrates enable and disable functionality for power management
- Provides stable LVCMOS signal output
- Designed for compact surface-mount applications
Applications
- General electronic timing circuits
- Consumer electronics devices
- Industrial control systems
Procurement Notes
Verify the specific suffix 'OE' against official Mercury Electronics documentation to confirm exact electrical tolerances and pinout configurations. Ensure that the selected variant matches the required 1.8V supply voltage and LVCMOS interface specifications for the target design. Cross-reference the package dimensions to validate board space constraints before finalizing procurement orders.
Selection Notes
Select this component when a low-profile 4-SMD oscillator is required for 1.8V logic interfaces. Consider the -40°C to 85°C operating range for environmental suitability. Evaluate the 66.155 MHz frequency requirement against system clock needs. Confirm that the enable/disable feature aligns with power efficiency goals compared to always-on alternatives.
Part Context
This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a consistent 2.0x1.6mm footprint. It serves as a timing reference solution for modern portable and industrial electronics requiring precise clock signals.
Replacement Considerations
Direct substitutes include other 66.155 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Verify voltage compatibility and pin assignments before swapping. Check datasheets for equivalent frequency stability and temperature ranges.
