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Product Detailed Parameters
- Description：71.22 MHz XO 1.8V 2.0X1.6 MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：71.22 MHz
- Function：Enable/Disable
- 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 18QHTF21-71.220-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 71.22 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for surface-mount assembly.
Feature Summary
- Compact 4-SMD no-lead package design for easy installation
- Low voltage operation at 1.8V supply
- LVCMOS output logic compatibility
- Enable/Disable control functionality
Applications
- Clock signal generation for digital circuits
- Embedded systems timing reference
- Consumer electronics internal clocks
- Industrial control system synchronization
Procurement Notes
Verify the exact operating temperature range and load capacitance requirements against your specific circuit design before procurement. Confirm that the 1.8V supply rail is stable and within tolerance limits to ensure frequency accuracy. Ensure PCB footprint matches the 2.0x1.6mm SMD package dimensions precisely to avoid soldering issues during assembly.
Selection Notes
Select this oscillator when a precise 71.22 MHz clock source is required in space-constrained designs. The 1.8V operation makes it suitable for modern low-power digital logic families. Consider the enable/disable feature if power management is critical. Verify that the LVCMOS output swing is compatible with the input thresholds of the receiving component.
Part Context
This part belongs to the 18QHTF21 series of compact crystal oscillators from Mercury Electronics. The series offers various frequencies with a consistent 2.0x1.6mm form factor. The 'OE' suffix typically denotes a specific tape and reel packaging option or environmental compliance status, distinct from the 'PD' variant which may differ in packaging quantity or handling specifications.
Replacement Considerations
Direct replacements must match the 71.22 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Cross-reference with other manufacturers offering similar low-profile XO devices. Ensure pinout compatibility and electrical characteristics align to prevent circuit modification.
