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Product Detailed Parameters
- Description：121.4 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：121.4 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 18QHTF21-121.400-OE is a crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 121.4 MHz and utilizes LVCMOS output logic. The device functions on a 1.8V supply voltage and includes enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- LVCMOS output logic for standard digital interfacing
- Integrated enable and disable functionality
- Compact surface-mount package design
Applications
- General purpose clock signal generation
- Digital circuit timing reference
- Embedded system clock sources
Procurement Notes
Verify the specific suffix 'OE' against official Mercury Electronic documentation to confirm the exact electrical characteristics and pinout configuration. Ensure the required operating temperature range aligns with the datasheet specifications before procurement. Cross-reference the package outline drawing to confirm mechanical compatibility with the target PCB footprint.
Selection Notes
Select this component when a 121.4 MHz clock source with LVCMOS outputs is required. The 1.8V supply voltage makes it suitable for low-power digital applications. Consider the small 2.0x1.6mm package size for space-constrained designs. Verify that the enable/disable feature meets the system's power management requirements.
Part Context
This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronic. The series offers various frequencies and supply voltages. Mercury Electronic is a specialized manufacturer of frequency control products, including quartz crystals and oscillators, with a long history in the industry.
Replacement Considerations
Check the 18QHTF21-121.400-PD variant for potential substitution, noting that the suffix may indicate different packaging or specifications. Always verify electrical parameters and pin assignments before replacing components.
