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Product Detailed Parameters
- Description：49.3633 MHz XO 1.8V 2.0X1.6MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：49.3633 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 18QHTF21-49.3633-OE is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 49.3633 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features an Enable/Disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- LVCMOS output logic for standard digital interface compatibility
- Integrated Enable/Disable functionality for power management
- Hermetic ceramic leadless SMD construction for reliability
Applications
- High-performance digital signal processing systems
- Communication equipment requiring precise timing
- Embedded systems utilizing LVCMOS interfaces
Procurement Notes
Verify the specific package dimensions (2.0x1.6mm) and supply voltage requirements (1.8V) against your design specifications. Confirm that the LVCMOS output level matches your system's input thresholds. Ensure the Enable/Disable pin configuration aligns with your power control strategy before finalizing procurement.
Selection Notes
Select this component when a 49.3633 MHz clock source is required with low voltage operation. The small 2.0x1.6mm footprint makes it suitable for space-constrained designs. Consider the Enable/Disable feature if dynamic power management is necessary for the application environment.
Part Context
This part belongs to the QHTF series from Mercury Electronic, which offers various hermetic ceramic leadless SMD packages. The series supports frequencies from 1.0 MHz to 200 MHz across different supply voltages. Mercury Electronic is a Taiwan-based manufacturer specializing in quartz crystals and oscillators since 1973.
Replacement Considerations
Check for compatible parts within the same QHTF series or other LVCMOS oscillators with identical frequency and package dimensions. Verify electrical parameters such as supply voltage and output logic levels to ensure direct interchangeability without circuit modification.
