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18QHTF21-4.430-OE is listed in the Oscillators range at ChipApex. The manufacturer field lists Mercury Electronics Ind. Co. Ltd. Its product description is 4.43 MHz XO 1.8V 2.0X1.6 MM OE. Review the specifications below when checking this part for your BOM.
Oscillators specifications for 18QHTF21-4.430-OE
- Description：4.43 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：4.43 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)：21mA
- 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 18QHTF21-4.430-OE
Oscillators Overview
The 18QHTF21-4.430-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 4.43 MHz and utilizes LVCMOS output logic levels. The device supports a 1.8V supply voltage and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.
Oscillators Feature Summary
- LVCMOS output interface for digital compatibility
- Integrated enable/disable pin for power control
- Compact 4-SMD no-lead surface mount package
Oscillators Applications
- General-purpose digital timing circuits
- Embedded systems clock sources
- Consumer electronics timing references
Oscillators Procurement Notes
Verify the specific frequency suffix matches the required 4.43 MHz operation. Confirm the 1.8V supply requirement aligns with system design. Ensure the 4-SMD no-lead package footprint is compatible with PCB layout. Check datasheet for stability specifications if precision timing is critical.
Oscillators Selection Notes
Select this component when a low-voltage 1.8V XO is required for 4.43 MHz applications. Consider the enable/disable feature for power-sensitive designs. Verify package dimensions against board space constraints. Compare stability requirements against application needs before finalizing selection.
Oscillators Part Context
Mercury Electronic Ind. Co., Ltd. specializes in frequency-control products including quartz crystals and oscillators. The 18QHTF21 series represents their standard XO lineup offering various frequencies and supply voltages. This manufacturer has established presence in the Taiwan electronic components market since 1973.
Oscillators Replacement Considerations
Cross-reference with other 4.43 MHz LVCMOS oscillators in 4-SMD packages. Verify pinout compatibility for direct replacement. Ensure supply voltage and current consumption match system requirements. Check frequency stability specifications for equivalent performance.
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