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Product Detailed Parameters
- Description：108.791 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：108.791 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 18QHTF21-108.791-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 108.791 MHz with LVCMOS output logic. The device supports a supply voltage of 1.8V and features an enable/disable control function. It is housed in a 4-SMD, no lead package designed for surface mount applications.
Feature Summary
- Integrates enable and disable functionality for power management
- Provides stable LVCMOS clock signals for digital circuits
- Utilizes a compact surface-mount package for automated assembly
Applications
- High-speed data communication interfaces
- Digital signal processing systems
- Network equipment timing sources
Procurement Notes
Verify the specific frequency suffix matches the required 108.791 MHz specification. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD package footprint is compatible with the PCB layout. Check for any specific operating temperature range requirements beyond standard industrial ratings.
Selection Notes
Select this component when a precise 108.791 MHz clock source is required for LVCMOS-compatible logic. Consider the enable/disable feature if power efficiency during idle states is critical. Evaluate the 4-SMD form factor against available board space constraints. Verify compatibility with the 1.8V power domain before integration.
Part Context
This part belongs to the 18QHTF21 series of standard oscillators from Mercury Electronics. The series offers various frequencies with consistent electrical characteristics. The -OE suffix typically denotes specific packaging or compliance variations within the manufacturer's lineup. These components are designed for reliable performance in consumer and industrial electronics.
Replacement Considerations
Direct substitutes must match the 108.791 MHz frequency, LVCMOS output, and 1.8V supply. Cross-reference pinouts and thermal characteristics for equivalent models. Verify that alternative sources provide identical enable/disable functionality.
