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Product Detailed Parameters
- Description：124.2 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：124.2 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 18QHTF21-124.200-OE is a 124.2 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a supply voltage of 1.8V and features an Enable/Disable control function. The device utilizes LVCMOS output logic and is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Integrates Enable/Disable functionality for power management
- Utilizes LVCMOS output logic for digital interface compatibility
- Employs quartz-based crystal technology for frequency stability
Applications
- General clock signal generation in electronic circuits
- Embedded systems requiring precise timing references
- Digital communication interfaces
Procurement Notes
Verify the specific suffix 'OE' against official documentation to confirm the Enable/Disable feature and LVCMOS output type. Ensure the operating temperature range and load capacitance requirements align with the target circuit design before finalizing procurement. Cross-reference the manufacturer's latest datasheet for any revisions to pinout or electrical characteristics.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside active enable/disable capabilities. The small 2.0x1.6mm footprint makes it suitable for space-constrained designs. Confirm that the LVCMOS output swing matches the input voltage levels of the receiving logic gates in the application.
Part Context
This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and supply voltages, with the '18' prefix typically indicating the 1.8V supply variant. The model number encodes the specific frequency and package style within the manufacturer's standard product line.
Replacement Considerations
Direct substitutes include other 124.2MHz 1.8V LVCMOS oscillators in a 4-SMD No Lead 2.0x1.6mm package with Enable/Disable pins. Verify pin-to-pin compatibility and identical electrical specifications such as phase noise and jitter performance before substitution.
