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Product Detailed Parameters
- Description：71.11173 MHz XO 1.8V 2.0X1.6 PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：71.11173 MHz
- Function：Standby (Power Down)
- 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)：26mA
- 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 18QHTF21-71.11173-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 71.11173 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Supports low-voltage operation at 1.8V
- Includes standby and power-down functionality
- Utilizes LVCMOS output interface
Applications
- Embedded systems requiring precise clock signals
- Portable electronic devices due to low power consumption
- Communication equipment utilizing LVCMOS interfaces
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail stability meets the datasheet specifications. Confirm that the PCB footprint matches the 4-SMD no-lead package dimensions provided in the official Mercury Electronics documentation to avoid assembly issues.
Selection Notes
Select this component when a small form factor and low voltage operation are critical. The 2.0x1.6mm size suits space-constrained designs. The LVCMOS output is compatible with standard digital logic families. Consider the power-down feature if battery life or thermal management is a priority in the application environment.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a miniature SMD package. The series is designed for applications needing reliable clock sources with minimal board space. The 'PD' suffix indicates the inclusion of power-down control capabilities within the oscillator module.
Replacement Considerations
Direct substitutes must match the 71.11173 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and electrical parameters such as jitter and phase noise with alternative manufacturers to ensure functional equivalence.
