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Product Detailed Parameters
- Description：7.1 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：7.1 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 18QHTF21-7.100-OE is a 7.1 MHz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a supply voltage of 1.8V and features LVCMOS output levels. The device supports enable and disable functionality for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. The unit exhibits a frequency stability of ±50ppm and an absolute pull range (APR) suitable for standard timing applications. Maximum current consumption is specified at 21mA.
Feature Summary
- Supports active enable and disable control for efficient power management
- Delivers LVCMOS output signals compatible with standard logic interfaces
- Utilizes a leadless surface-mount package for automated assembly
Applications
- High-frequency timing circuits requiring reliable clock sources
- Portable electronic devices utilizing low-voltage operation
- Standard digital systems needing precise frequency generation
Procurement Notes
Verify the specific ordering suffix to ensure correct voltage and output configuration. Confirm that the required frequency tolerance aligns with system requirements. Check datasheet specifications for operating temperature ranges. Ensure compatibility with the target PCB footprint. Validate supply voltage constraints before integration.
Selection Notes
Choose this component when a 1.8V supply is available and LVCMOS outputs are required. Consider the 2.0x1.6mm package size for space-constrained designs. Evaluate the ±50ppm stability against system jitter requirements. Assess the 21mA current draw against total power budgets. Compare leadless packages against traditional SMD options for assembly needs.
Part Context
This oscillator belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd. The manufacturer specializes in quartz crystals and frequency control products. This series provides standard XO solutions for various electronic applications. The company has extensive experience in Taiwan's crystal industry.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical parameters before considering alternative manufacturers.
