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Product Detailed Parameters
- Description：84.742 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：84.742 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 18QHTF21-84.742-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 84.742 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and features an Enable/Disable control pin for power management. It is housed in a compact 4-SMD, No Lead package designed for surface mount applications.
Feature Summary
- LVCMOS output logic for digital interface compatibility
- Enable/Disable functionality for power control
- Surface mount construction in a leadless SMD package
Applications
- Digital signal processing systems
- Communication equipment clocking
- Embedded system timing references
Procurement Notes
Verify the specific suffix OE against the manufacturer's current datasheet to confirm availability and exact electrical tolerances. Ensure the 1.8V supply requirement matches the target circuit design before procurement. Confirm the 4-SMD no-lead footprint dimensions align with the PCB layout specifications to prevent assembly errors during manufacturing.
Selection Notes
Select this component when a precise 84.742 MHz reference is required with low voltage operation. The LVCMOS output suits standard digital logic families. Consider the Enable/Disable feature if power efficiency is critical. Verify that the operating temperature range meets the environmental conditions of the intended application environment.
Part Context
This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series includes various frequencies and packages, establishing a standardized form factor for surface mount integration. Mercury Electronics has decades of experience in crystal manufacturing, providing reliability for industrial and commercial timing applications.
Replacement Considerations
Direct substitutes must match the 84.742 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering equivalent surface mount oscillators with identical electrical specifications.
