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Product Detailed Parameters
- Description：108.367957 M XO 1.8V 2.0X1.6 OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：108.367957 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 18QHTF21-108.367957-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 108.367957 MHz and utilizes LVCMOS output logic levels. The component requires a 1.8V supply voltage and includes Enable/Disable control functionality for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. The device offers a frequency stability of ±50ppm and is classified as an active product suitable for precision timing applications.
Feature Summary
- LVCMOS output interface for digital logic compatibility
- Enable/Disable pin for power control
- Compact 4-SMD surface mount package
Applications
- Digital signal processing systems
- Communication equipment clocking
- Embedded system timing references
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD package footprint matches your PCB layout constraints. Check for any specific environmental operating temperature ranges required by your application to ensure reliability under all conditions.
Selection Notes
Select this component when a precise 108.367957 MHz clock source is required with low voltage operation. Consider the ±50ppm stability for applications needing moderate frequency accuracy. The Enable/Disable feature makes it suitable for battery-powered devices requiring power optimization. Evaluate the small form factor against available board space limitations.
Part Context
This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically features LVCMOS outputs and various frequency options within a standardized 2.0x1.6 mm package. These components are designed for general-purpose timing applications where size and power efficiency are critical factors.
Replacement Considerations
Direct substitutes must match the 108.367957 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify equivalent stability and enable/disable functionality. Cross-reference with other manufacturers offering similar ultra-small oscillators if availability is an issue.
