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Product Detailed Parameters
- Description：7.372 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：7.372 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：-
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Overview
The 18QHTF21-7.372-PD is a 7.372 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a supply voltage of 1.8V and utilizes LVCMOS output logic levels. The device features a Standby (Power Down) control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. The component is designed for standard frequency applications requiring low profile and energy efficiency.
Feature Summary
- Compact 2.0x1.6 mm surface mount package
- LVCMOS output interface
- Standby power down capability
- 1.8V single supply operation
Applications
- Industrial equipment
- Consumer electronics
- Portable devices
Procurement Notes
Verify the exact part number suffix to ensure correct control functionality. The 'PD' suffix indicates Standby (Power Down) operation, distinct from 'OE' which denotes Enable/Disable. Confirm the operating temperature range requirements against datasheet specifications before procurement. Ensure compatibility with 1.8V logic levels in the target circuit design.
Selection Notes
Select this component when a low-profile 4-pin SMD oscillator is required for 1.8V systems. The 7.372 MHz frequency is suitable for clock generation in microcontrollers and communication interfaces. Consider the standby feature for power-sensitive designs. Verify that the 2.0x1.6 mm footprint fits within the PCB layout constraints.
Part Context
This oscillator belongs to the 18QHTF21 series from Mercury Electronics, known for compact size and reliability. The series includes various frequencies and control options. This specific model provides a standard XO output with power-down functionality, catering to modern electronic designs requiring space efficiency and controlled power consumption.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other 4-SMD 1.8V LVCMOS oscillators only if pinout and electrical parameters match exactly. Verify frequency tolerance and load capacitance requirements before substitution.
