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18QHTF21-4.433-PD is listed in the Oscillators range at ChipApex. The manufacturer field lists Mercury Electronics Ind. Co. Ltd. Its product description is 4.433 MHz XO 1.8V 2.0X1.6 MM PD. Review the specifications below when checking this part for your BOM.
Oscillators specifications for 18QHTF21-4.433-PD
- Description：4.433 MHz XO 1.8V 2.0X1.6 MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：4.433 MHz
- Function：Standby (Power Down)
- 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 18QHTF21-4.433-PD
Oscillators Overview
The 18QHTF21-4.433-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 4.433 MHz with an LVCMOS output signal. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6mm, suitable for surface-mount applications.
Oscillators Feature Summary
- Supports low-voltage operation at 1.8V
- Includes standby mode capability
- Compact surface-mount footprint
Oscillators Applications
- General-purpose timing circuits
- Embedded systems requiring low-power oscillation
- Consumer electronics with space constraints
Oscillators Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail stability meets the oscillator's specifications. Confirm that the PCB layout accommodates the 2.0x1.6mm SMD package dimensions accurately to prevent soldering defects.
Oscillators Selection Notes
Select this component when a precise 4.433 MHz reference is required in a minimal footprint. Consider the 1.8V operating voltage constraint and the availability of standby control signals. Evaluate thermal performance and electromagnetic interference susceptibility relative to nearby sensitive components in the design.
Oscillators Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The series offers various frequencies within a standardized small outline package format, providing designers with consistent mechanical footprints across different timing solutions.
Oscillators Replacement Considerations
Direct substitutes must match the 4.433 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package. Verify pin compatibility and electrical characteristics with alternative manufacturers offering similar timing devices.
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