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Product Detailed Parameters
- Description：75.39 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：75.39 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 Mercury Electronics Ind. Co. Ltd part number 18QHTF21-75.390-OE is a 75.39 MHz Crystal Oscillator (XO) with LVCMOS output logic. It operates at a supply voltage of 1.8V and features an Enable/Disable control function. The component is housed in a 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.
Feature Summary
- Provides stable frequency output suitable for timing applications
- Features LVCMOS output logic for digital interface compatibility
- Includes enable/disable control functionality for power management
Applications
- Timing circuits requiring precise clock signals
- Digital systems utilizing LVCMOS interfaces
- Compact electronic devices needing low-profile oscillators
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 voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints to guarantee proper soldering and mechanical stability during assembly.
Selection Notes
Select this oscillator when a 75.39 MHz frequency is required with LVCMOS output levels. Consider the 1.8V supply voltage requirement and the enable/disable feature for power efficiency. The compact 2.0x1.6mm package is suitable for space-constrained designs. Verify thermal performance within the specified operating temperature range for reliable operation in your application environment.
Part Context
This component belongs to Mercury Electronics' line of crystal oscillators, manufactured by Mercury United Electronics, Inc. The company has produced frequency control products since 1973, specializing in quartz crystals, clock oscillators, TCXOs, VCTCXOs, VCXOs, OCXOs, and monolithic crystal filters. This specific model represents their standard XO offering with integrated enable functionality.
Replacement Considerations
Direct substitutes include other 75.39 MHz LVCMOS oscillators with identical 1.8V supply and 4-SMD no-lead packaging from compatible manufacturers. Verify pinout compatibility and electrical specifications such as phase noise and jitter before substitution.
