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Product Detailed Parameters
- Description：109.99995 M XO 1.8V 2.0X1.6MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：109.99995 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 18QHTF21-109.99995-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 109.99995 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, specifically supporting a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.
Feature Summary
- LVCMOS output interface
- Enable/Disable control functionality
- Low voltage operation
Applications
- General purpose clock generation
- Digital signal processing systems
- Communication equipment timing
Procurement Notes
Verify the specific suffix 'OE' against the manufacturer's official documentation to confirm the exact pinout, tolerance, and operating temperature range. Ensure the 1.8V supply requirement aligns with the target system design. Confirm the 4-SMD No Lead package dimensions match the PCB footprint requirements before finalizing procurement orders.
Selection Notes
Select this component when a precise 109.99995 MHz clock source is required with low voltage compatibility. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the enable/disable feature if power management during idle states is a critical design constraint for the application.
Part Context
This part belongs to the Mercury Electronics XO series, which includes various frequency options and package types. The '18QHTF21' prefix indicates the specific series characteristics, while the numeric suffix defines the frequency. Similar parts in the lineup may offer different voltages or frequencies but share the same fundamental oscillator architecture.
Replacement Considerations
Direct substitutes include other 109.99995 MHz LVCMOS oscillators in a 4-SMD No Lead package from compatible manufacturers. Verify that any replacement matches the 1.8V supply voltage and physical footprint exactly to ensure board compatibility.
