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Product Detailed Parameters
- Description：73.0 MHz XO 1.8V 2.0X1.6 MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：73 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 18QHTF21-73.000-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 73.000 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a Standby (Power Down) control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm. This component is designed for timing applications requiring precise clock signals in space-constrained electronic systems.
Feature Summary
- Integrates LVCMOS output logic for digital interface compatibility
- Includes standby control functionality to reduce power consumption
- Utilizes a leadless surface-mount package for automated assembly
Applications
- Portable consumer electronics
- Battery-powered devices
- Communication modules
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's specifications. Ensure the PCB footprint matches the 2.0x1.6mm SMD no-lead package dimensions to prevent soldering defects during assembly.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside a standard LVCMOS interface. Consider the 2.0x1.6mm form factor for high-density board layouts. Evaluate the standby feature necessity if power efficiency is a critical design constraint compared to continuous-operation oscillators.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on small-form-factor quartz oscillators. The series typically offers various frequencies within the same physical package, allowing for design flexibility. Mercury Electronics is a Taiwan-based manufacturer specializing in frequency control products since 1973.
Replacement Considerations
Direct substitutes include other 1.8V LVCMOS oscillators in 2.0x1.6mm packages from manufacturers such as Epson or NDK, provided the pinout and electrical characteristics match.
