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Product Detailed Parameters
- Description：119.9308 MHz XO 1.8V 2.0X1.6 PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：119.9308 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)：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 18QHTF21-119.9308-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 119.9308 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to manage energy consumption. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6 mm.
Feature Summary
- Supports low-voltage operation at 1.8V
- Includes standby and power-down capabilities
- Utilizes LVCMOS output logic for digital interfacing
Applications
- Digital signal processing systems
- Communication equipment requiring precise clocking
- Embedded systems with space constraints
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Ensure the 1.8V supply rail is stable and within the specified operating range. Confirm that the 4-SMD no-lead package footprint matches your PCB layout guidelines to ensure proper soldering and mechanical reliability during assembly.
Selection Notes
Select this component when a precise 119.9308 MHz clock source is required in a minimal footprint. Consider the 1.8V operating voltage and LVCMOS compatibility with your target logic family. Evaluate the need for power-down functionality if energy efficiency is critical. Verify that the 2.0x1.6 mm package size fits within the available board space constraints.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series includes various frequencies and packages, catering to diverse electronic applications. Mercury Electronics has a long history in manufacturing quartz crystals and oscillators, positioning this component within a established line of timing devices.
Replacement Considerations
Direct substitutes may include other 119.9308 MHz XO components with compatible 1.8V LVCMOS outputs and similar 4-SMD footprints. Cross-reference pinouts and electrical specifications carefully. No specific alternate part numbers are confirmed in public documentation.
