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Product Detailed Parameters
- Description：6.57 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：6.57 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)：21mA
- 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 18QHTF21-6.570-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 6.57 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component supports an operating temperature range from -40°C to 85°C and maintains a frequency stability of ±50ppm.
Feature Summary
- Supports active enable and disable control for power management
- Utilizes LVCMOS output logic interface
- Compact 4-SMD no-lead surface mount package
Applications
- General purpose clock signal generation
- Embedded system timing references
- Consumer electronics circuit boards
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Ensure the 1.8V supply rail is stable within the operational limits. Confirm that the PCB footprint matches the 4-SMD no-lead package dimensions provided in the official datasheet to prevent assembly issues.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside standard LVCMOS compatibility. The enable/disable feature makes it suitable for applications requiring dynamic power control. Consider the ±50ppm stability specification to ensure it meets the jitter and accuracy requirements of the target digital interface.
Part Context
This part belongs to the QHTF series of crystal oscillators from Mercury Electronics Ind. Co. Ltd. The manufacturer is a specialized supplier of frequency control products including quartz crystals and oscillators. This series typically offers small form factors suitable for space-constrained portable and industrial electronic designs.
Replacement Considerations
Check for direct substitutes within the same series such as 18QHTF21-9.465-OE or 18QHTF21-6.300-OE if different frequencies are needed. Verify pinout compatibility and electrical parameters before substituting with other manufacturers' components.
