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Product Detailed Parameters
- Description：59.9 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：59.9 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)：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 18QHTF21-59.900-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 59.9 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for timing applications requiring precise clock signals within the specified electrical parameters.
Feature Summary
- Integrates LVCMOS output logic for standard digital interface compatibility
- Features an enable/disable pin for active power management control
- Utilizes a compact 4-SMD no-lead surface mount package design
Applications
- General purpose clock signal generation in electronic circuits
- Timing reference sources for digital systems
- Embedded devices requiring low-voltage operation
Procurement Notes
Verify that the specific part number matches the required 59.9 MHz frequency and 1.8V supply voltage before procurement. Confirm the LVCMOS output type and enable/disable functionality align with the system design requirements. Ensure the 4-SMD no-lead package footprint corresponds to the PCB layout specifications to guarantee proper physical installation and electrical connectivity.
Selection Notes
Select this component when a 59.9 MHz clock source is required with a 1.8V operating voltage. The LVCMOS output is suitable for standard logic families. Consider the enable/disable feature if power efficiency during idle states is a priority. The small 2.0x1.6mm package is ideal for space-constrained designs. Verify temperature range and load capacitance requirements against the application environment.
Part Context
Mercury Electronics Ind. Co. Ltd specializes in frequency control products, including quartz crystals and oscillators. The 18QHTF21 series represents their line of surface-mount crystal oscillators. This specific model is part of a family offering various frequencies and voltages, all sharing similar package dimensions and functional characteristics like enable pins and LVCMOS outputs.
Replacement Considerations
Compatible substitutes include other 59.9 MHz LVCMOS oscillators in a 4-SMD 2.0x1.6mm package with 1.8V operation and enable pins from manufacturers such as Epson or SiTime. Ensure pinout compatibility and electrical parameter matching are verified before substitution.
