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18QHTF21-18.500-OE is listed in the Oscillators range at ChipApex. The manufacturer field lists Mercury Electronics Ind. Co. Ltd. Its product description is 18.5 MHz XO 1.8V 2.0X1.6 MM OE. Review the specifications below when checking this part for your BOM.
Oscillators specifications for 18QHTF21-18.500-OE
- Description：18.5 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：18.5 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)：22mA
- 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：-
Oscillators datasheet and documents for 18QHTF21-18.500-OE
Oscillators Overview
The 18QHTF21-18.500-OE is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 18.5 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and includes Enable/Disable control functionality. It is housed in a compact 4-SMD, No Lead package configuration.
Oscillators Feature Summary
- LVCMOS output interface
- Enable/Disable control capability
- Hermetic ceramic leadless SMD construction
Oscillators Applications
- General purpose clock signal generation
- Digital system timing references
- Embedded circuit synchronization
Oscillators Procurement Notes
Verify the specific datasheet version to confirm electrical characteristics such as jitter and phase noise specifications. Ensure the 1.8V supply requirement aligns with the target system design. Confirm that the 4-SMD no-lead package footprint matches the PCB layout constraints before finalizing procurement.
Oscillators Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside standard LVCMOS compatibility. The enable/disable feature supports power management strategies in battery-operated or energy-efficient designs. Consider the hermetic ceramic package for applications requiring robust environmental stability compared to standard plastic packages.
Oscillators Part Context
This part belongs to the QHTF series from Mercury Electronics, which offers various frequencies ranging from 1.0 MHz to 200 MHz. The series provides multiple supply voltages and hermetic ceramic leadless SMD packages. The 18QHTF21 variant specifically denotes the 1.8V supply and 4-SMD form factor within this product line.
Oscillators Replacement Considerations
Direct substitutes include other 18.5 MHz XO parts from Mercury Electronics with identical 1.8V LVCMOS specifications and 4-SMD no-lead packaging. Verify pinout compatibility and thermal performance when cross-referencing with alternative manufacturers' offerings.
Explore related parts through Crystals, Oscillators, Resonators, all product categories, ChipApex homepage.
