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Product Detailed Parameters
- Description：6.1444 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：6.1444 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 18QHTF21-6.1444-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 6.1444 MHz and utilizes an LVCMOS output interface. The device is designed for low voltage applications, requiring a supply voltage of 1.8V. It features a standby function that allows for power down capabilities to conserve energy during inactive periods. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.
Feature Summary
- Supports enable/disable functionality via standby control
- Provides LVCMOS digital output signals
- Operates with low voltage supply requirements
- Utilizes leadless surface-mount packaging
Applications
- Portable electronic devices requiring low power consumption
- Communication systems utilizing standard clock frequencies
- Embedded controllers needing precise timing references
- Consumer electronics with space-constrained designs
Procurement Notes
Verify the specific suffix OE against official Mercury Electronic documentation to confirm the exact electrical characteristics and pinout configuration. Ensure compatibility with 1.8V logic levels in the target design. Cross-reference the 4-SMD no-lead footprint dimensions with PCB layout guidelines to guarantee proper soldering and mechanical stability during assembly processes.
Selection Notes
Choose this oscillator when a stable 6.1444 MHz reference is required alongside low voltage operation. Consider the LVCMOS output compatibility with downstream logic circuits. Evaluate the thermal performance within the specified operating temperature range. Assess the physical size constraints of the application against the small form factor of the leadless package.
Part Context
Mercury Electronic Ind. Co., Ltd. is a established manufacturer specializing in frequency control products including quartz crystals and oscillators. This component belongs to their series of standard crystal oscillators designed for general-purpose timing applications. The company has a long history in producing precision timing solutions for various industrial and consumer markets.
Replacement Considerations
Consult official Mercury Electronic substitution lists for direct replacements. Verify equivalent frequency, voltage, and package specifications before integrating alternative components. Ensure any substitute part maintains compatible output drive strength and timing stability requirements.
