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Product Detailed Parameters
- Description：49.58 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：49.58 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)：23mA
- 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 18QHTF21-49.580-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 49.58 MHz and utilizes LVCMOS output logic levels. The device functions with a supply voltage of 1.8V and includes enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is designed for timing applications requiring precise frequency generation in space-constrained electronic circuits.
Feature Summary
- LVCMOS output signal compatibility
- Integrated enable and disable functionality
- Compact surface-mount packaging
Applications
- General-purpose digital timing circuits
- Embedded system clock sources
- Communication interface synchronization
Procurement Notes
Verify the specific suffix 'OE' against official datasheets to confirm enable/disable pin configuration and electrical characteristics. Ensure the 1.8V supply requirement aligns with target circuit design. Confirm RoHS compliance status through manufacturer documentation prior to integration.
Selection Notes
Select this model when a low-voltage 1.8V operation is required alongside space-saving SMD packaging. Consider the enable/disable feature for power management needs. Verify that LVCMOS output levels match the input requirements of the connected load or microcontroller.
Part Context
This oscillator belongs to the Mercury Electronics XO series, which provides standard frequency solutions. The brand specializes in quartz crystals and oscillators, offering various packages and frequencies for industrial and consumer electronics applications.
Replacement Considerations
Check for direct substitutes within the same series such as 18QHTF21 variants with different frequencies or suffixes like PD. Ensure replacement parts match the 1.8V supply, LVCMOS output, and 2.0x1.6mm footprint specifications.
