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Product Detailed Parameters
- Description：74.17575 MHz XO 1.8V 2.0X1.6 OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：74.17575 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 18QHTF21-74.17575-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 74.17575 MHz and utilizes LVCMOS output logic. The device supports a supply voltage range of 1.8V to 3.3V and features an enable/disable control function for power management. It is housed in a compact 4-SMD, no-lead package with dimensions of 1.6mm x 1.2mm and a height of 0.55mm. The component is designed for operation within a temperature range of -40°C to +85°C, ensuring reliability in various electronic applications.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes enable/disable pin for active power management
- Compact surface-mount package suitable for space-constrained designs
Applications
- High-speed data communication interfaces
- Consumer electronics requiring precise timing
- Industrial control systems
Procurement Notes
Verify the specific suffix (OE vs PD) against the manufacturer's official documentation to ensure correct operational parameters. Confirm that the required frequency tolerance and load capacitance match the target circuit design before ordering. Check for availability as stock levels may vary.
Selection Notes
Select this component when a low-voltage LVCMOS clock source is required in a minimal footprint. Ensure the system operates within the specified 1.8V to 3.3V range. Consider the thermal performance if the application involves high ambient temperatures near the upper limit.
Part Context
This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options, providing flexibility for different timing requirements in modern electronic devices while maintaining a consistent small form factor.
Replacement Considerations
Direct substitutes include other 18QHTF21 variants with matching frequency and voltage specifications. Cross-reference with similar 4-SMD oscillators from other manufacturers only if electrical parameters are identical.
