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Product Detailed Parameters
- Description：66.2 MHz XO 1.8V 2.0X1.6 MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：66.2 MHz
- Function：Standby (Power Down)
- 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 18QHTF21-66.200-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 66.2 MHz and utilizes LVCMOS output logic. The device is designed for low-power applications, featuring a supply voltage of 1.8V and a standby mode for power-down functionality. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm. This component is suitable for systems requiring precise clock signals with minimal power consumption.
Feature Summary
- Supports standby mode for power-down operation to reduce energy usage
- Utilizes LVCMOS output logic for digital interface compatibility
- Housed in a compact 4-SMD no-lead surface-mount package
Applications
- Portable electronic devices requiring low power consumption
- Communication systems needing stable clock signals
- Embedded systems with strict size constraints
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Ensure that the 1.8V supply voltage aligns with your power management architecture. Confirm the package orientation and pinout configuration matches your PCB footprint. Check for any specific handling instructions related to the no-lead SMD package during assembly.
Selection Notes
Select this oscillator when a 66.2 MHz clock signal is required with low voltage operation. Consider the LVCMOS output level compatibility with your downstream logic circuits. Evaluate the thermal performance and stability requirements within the specified operating temperature range. Compare the physical dimensions against available board space to ensure proper fitment.
Part Context
This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and supply voltages. The 'PD' suffix indicates the inclusion of a power-down feature. These components are designed for high-volume manufacturing and integration into modern electronic assemblies.
Replacement Considerations
Direct replacements must match the 66.2 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and electrical specifications. Consult manufacturer cross-reference lists for verified substitutes.
