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Product Detailed Parameters
- Description：1.84 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：1.84 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：-
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Overview
The 18QHTF21-1.840-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.84 MHz and utilizes an LVCMOS output interface. The device is designed for a supply voltage of 1.8V and features Enable/Disable control functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.
Feature Summary
- LVCMOS output interface for digital logic compatibility
- Enable/Disable control capability for power management
- Compact 4-SMD no-lead surface mount package
Applications
- General purpose clock signal generation
- Embedded system timing references
- Consumer electronics circuit boards
Procurement Notes
Verify the specific suffix 'OE' indicates the Enable/Disable function as documented in official Mercury Electronics datasheets. Confirm the operating temperature range and load capacitance requirements against the target application design specifications before procurement to ensure signal integrity and reliability.
Selection Notes
Select this component when a low-voltage 1.8V LVCMOS clock source is required in a minimal footprint. Ensure the application supports the Enable/Disable control mode rather than Standby or Power Down modes found in other variants within the same series. Validate that the 1.84 MHz frequency aligns with the system clock requirements.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies and control options. The 'OE' suffix specifically denotes the Enable/Disable feature set, distinguishing it from 'PD' (Power Down) variants. The series provides standardized timing solutions in small SMD packages for modern electronic designs.
Replacement Considerations
Direct substitutes must match the 1.84 MHz frequency, 1.8V LVCMOS output, and Enable/Disable control type. Verify pinout compatibility for the 4-SMD no-lead package. Cross-reference with Mercury Electronics documentation for equivalent part numbers offering identical electrical characteristics and form factor.
