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Product Detailed Parameters
- Description：50.0433 MHz XO 1.8V 2.0X1.6MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：50.0433 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)：24mA
- 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 18QHTF21-50.0433-PD is a 50.0433 MHz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The device features a Standby (Power Down) control function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This surface-mount component is designed for applications requiring precise frequency generation within low-voltage digital systems.
Feature Summary
- LVCMOS output interface for standard digital logic compatibility
- Integrated standby mode to reduce power consumption during idle periods
- Compact 4-SMD no-lead surface mount package design
Applications
- Portable electronic devices requiring low power operation
- Digital signal processing circuits
- Communication modules utilizing LVCMOS interfaces
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6 mm SMD package dimensions to guarantee proper soldering and mechanical stability during assembly processes.
Selection Notes
Select this component when a 50.0433 MHz clock source is required in space-constrained designs. The 1.8V operating voltage makes it suitable for modern low-power portable electronics. Consider the LVCMOS output type for direct interfacing with standard logic families without additional level shifting components.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series includes various frequencies and packages, expanding from lead-type to surface-mount options. Mercury has been a pioneer in Taiwan's quartz crystal manufacturing industry since 1973.
Replacement Considerations
Direct substitutes include other 18QHTF21 series variants with identical pinouts and electrical characteristics but different frequencies, such as 18QHTF21-51.200-PD or 18QHTF21-8.000-PD, provided the frequency requirement can be adjusted.
