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Product Detailed Parameters
- Description：48.549 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：48.549 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)：23mA
- 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 18QHTF21-48.549-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 48.549 MHz with LVCMOS output logic and a supply voltage of 1.8V. The device features enable/disable functionality and is housed in a compact 4-SMD, no lead package. It supports surface mount mounting types and is designed for applications requiring precise timing signals within electronic circuits.
Feature Summary
- LVCMOS output logic for digital interface compatibility
- Integrated enable and disable control functionality
- Compact 4-SMD no lead surface mount package design
Applications
- General purpose clock signal generation
- Digital system timing references
- Embedded controller clock inputs
Procurement Notes
Verify the specific frequency tolerance and stability requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD package dimensions fit the PCB footprint constraints. Check for any specific ordering suffixes that may alter electrical characteristics or packaging options.
Selection Notes
Select this component when a low-voltage 1.8V LVCMOS oscillator is required. Consider the 4-SMD package size for space-constrained designs. Evaluate the enable/disable feature if power management is critical. Compare performance against similar models like the 18QHTF21 series variants to ensure frequency accuracy meets system specifications.
Part Context
This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies with LVCMOS outputs and 1.8V operation. Similar parts include the 18QHTF21-65.300-OE and 18QHTF21-37.300-OE, which share the same package and voltage profile but differ in operating frequency.
Replacement Considerations
Direct substitutes within the same series include the 18QHTF21-48.900-OE, though frequency differences must be accounted for. Verify pinout compatibility and electrical parameters with alternative suppliers' offerings. Ensure any replacement maintains the 1.8V supply and LVCMOS output requirements.
