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Product Detailed Parameters
- Description：75.28 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：75.28 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)：26mA
- 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 18QHTF21-75.280-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 75.280 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes enable/disable functionality for power management. It is housed in a compact 4-SMD package without lead, designed for surface-mount applications requiring precise timing signals.
Feature Summary
- Standard XO configuration with LVCMOS output
- Integrated enable/disable control via supply voltage
- Compact 4-SMD no-lead surface mount package
Applications
- General purpose clock generation in embedded systems
- Timing reference for digital signal processing circuits
- Communication interface synchronization modules
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 4-SMD footprint matches the PCB layout design to avoid assembly issues.
Selection Notes
Select this component when a fixed 75.280 MHz frequency is required with low power consumption due to the 1.8V operation. The enable/disable feature makes it suitable for battery-powered devices needing active clock periods. Verify thermal performance within the specified operating temperature range for the intended environment.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The series offers various frequencies and output types, catering to diverse timing needs in consumer electronics and industrial equipment. Mercury Electronics has been a pioneer in the Taiwan crystal industry since 1973.
Replacement Considerations
Direct substitutes include other 75.280 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Ensure pinout compatibility and electrical specifications match exactly. Cross-reference with similar models like 18QHTF21 variants if frequency adjustments are permissible.
