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Product Detailed Parameters
- Description：50.218 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：50.218 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)：24mA
- 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 18QHTF21-50.218-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 50.218 MHz and utilizes LVCMOS output logic levels. The device functions with a supply voltage of 1.8V and includes enable/disable control functionality for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is designed for high-performance applications requiring precise timing signals.
Feature Summary
- LVCMOS output compatibility for digital interface integration
- Integrated enable/disable pin for active power control
- Compact 4-SMD no-lead surface mount package design
Applications
- High-performance digital signal processing systems
- Communication equipment requiring stable clock sources
- Embedded systems utilizing LVCMOS logic families
Procurement Notes
Verify the specific frequency suffix matches the required system clock. Confirm the OE suffix indicates the enable function availability. Ensure the 1.8V supply requirement aligns with the target circuit design. Check package dimensions against PCB footprint constraints. Validate manufacturer authenticity through authorized distribution channels.
Selection Notes
Select this model when a 50.218 MHz clock signal is necessary. Choose based on the 1.8V operating voltage constraint. Consider the small 2.0x1.6 mm footprint for space-limited designs. Verify LVCMOS output swing requirements against load specifications. Evaluate the enable feature necessity for power-sensitive applications.
Part Context
This part belongs to the 18QHTF21 series of quartz crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized 4-pin SMD package. Mercury Electronic has manufactured frequency control products since 1973, specializing in quartz crystals and oscillators. The company is recognized as a pioneer in the Taiwan crystal industry.
Replacement Considerations
Direct substitutes must match the 50.218 MHz frequency, 1.8V supply, and LVCMOS output. Compatible packages include 4-SMD No Lead with 2.0x1.6 mm dimensions. Verify enable/disable functionality if power control is required. Cross-reference electrical parameters with original datasheets before substitution.
