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Product Detailed Parameters
- Description：7.392 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：7.392 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)：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 18QHTF21-7.392-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 7.392 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to manage energy consumption. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly. The component supports an operating temperature range typical for commercial applications, ensuring reliable timing performance in space-constrained electronic designs.
Feature Summary
- LVCMOS output logic for digital interface compatibility
- Integrated standby mode for power management
- Compact 4-SMD no-lead surface mount package
Applications
- Medical devices
- Industrial control systems
- Consumer electronics
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rails. Ensure the 4-SMD footprint matches the PCB layout specifications. Cross-reference the datasheet for any updates regarding the RoHS compliance status or lead-free soldering profiles to meet regulatory standards.
Selection Notes
Select this component when a low-voltage, small-footprint clock source is required for digital signal processing. The LVCMOS output is suitable for direct interfacing with microcontrollers and FPGAs. Consider the standby feature if power efficiency is critical. Evaluate the operating temperature range against the environmental conditions of the final application to ensure long-term stability.
Part Context
Mercury Electronic Ind. Co., Ltd. is a Taiwan-based manufacturer specializing in frequency-control products, including quartz crystals, oscillators, and filters. The company has been active in the industry since 1973, providing timing solutions for various sectors. This part belongs to their series of standard crystal oscillators designed for general-purpose timing applications.
Replacement Considerations
Compatible alternatives include other 7.392 MHz LVCMOS oscillators in a 4-SMD package from manufacturers such as Epson, NDK, or SiTime. Ensure pinout compatibility and electrical parameter matching, specifically supply voltage and output swing levels, when substituting.
