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Product Detailed Parameters
- Description：75.497472 M XO 1.8V 2.0X1.6MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：75.497472 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 18QHTF21-75.497472-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 75.497472 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.
Feature Summary
- Supports Low Voltage CMOS (LVCMOS) output logic levels
- Includes standby mode capability for power down functionality
- Utilizes surface-mount no-lead package design
Applications
- General clock signal generation in electronic circuits
- Embedded systems requiring precise timing references
- Portable devices utilizing low-voltage power supplies
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD no-lead package footprint matches your PCB layout constraints to ensure proper assembly and reliability.
Selection Notes
Select this component when a stable 75.497472 MHz clock source is required for LVCMOS-compatible digital logic. The choice is driven by the need for low-power operation at 1.8V and the integration of a power-down feature. Consider the small form factor suitable for space-constrained applications.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. The manufacturer has a long history in Taiwan as a pioneer in quartz crystal manufacturing. This series typically offers standard oscillators with various frequencies and supply voltages.
Replacement Considerations
Compatible substitutes include other 18QHTF21 variants such as 18QHTF21-75.000-PD or 18QHTF21-74.250-PD if frequency adjustments are permissible. Cross-reference with similar 1.8V LVCMOS XO components from other manufacturers ensuring identical package dimensions and pinout compatibility.
