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Product Detailed Parameters
- Description：109.0 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：109 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 18QHTF21-109.000-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 109 MHz and utilizes LVCMOS output logic. The device functions on a 1.8V supply voltage and includes an enable/disable control feature. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0mm x 1.6mm. The component supports surface mount mounting types and is designed for high-frequency timing applications requiring precise clock signals.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes enable and disable control functionality
- Compact 4-SMD no lead package design
Applications
- High-speed data communication systems
- Digital signal processing equipment
- Network infrastructure timing sources
Procurement Notes
Verify the specific frequency tolerance and operating temperature range against the official datasheet before procurement. Confirm that the 1.8V supply requirement aligns with the target system power rails. Ensure the 4-SMD no lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly processes.
Selection Notes
Select this component when a 109 MHz clock signal is required with low voltage operation. Consider the LVCMOS output compatibility with downstream digital circuits. Evaluate the thermal performance within the specified operating temperature range. Verify that the small form factor fits the available space constraints in the electronic design.
Part Context
This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies with consistent packaging and electrical characteristics. Mercury Electronics specializes in quartz crystals and timing solutions, providing reliable frequency control products for industrial and commercial electronics markets globally.
Replacement Considerations
Check for direct substitutes with identical 109 MHz frequency and 1.8V operation. Verify pinout compatibility for the 4-SMD no lead package. Ensure output logic remains LVCMOS. Confirm equivalent frequency stability and temperature range specifications.
