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18QHTF21-37.800-PD is listed in the Oscillators range at ChipApex. The manufacturer field lists Mercury Electronics Ind. Co. Ltd. Its product description is 37.8 MHz XO 1.8V 2.0X1.6 MM PD. Review the specifications below when checking this part for your BOM.
Oscillators specifications for 18QHTF21-37.800-PD
- Description：37.8 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：37.8 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)：23mA
- 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 18QHTF21-37.800-PD
Oscillators Overview
The 18QHTF21-37.800-PD is a 37.8 MHz standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. 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 unit supports an operating temperature range from -40°C to 85°C and maintains a frequency stability of ±50ppm.
Oscillators Feature Summary
- LVCMOS output interface
- Standby power down capability
- Compact 4-SMD no lead package
Oscillators Applications
- Portable electronic devices requiring low power consumption
- Communication equipment utilizing standard clock signals
- Industrial control systems operating in extended temperature ranges
Oscillators Procurement Notes
Verify the specific suffix PD indicates the Standby (Power Down) control feature when sourcing replacements. Confirm the 1.8V supply voltage requirement matches the target circuit design. Ensure the 4-SMD No Lead package footprint aligns with the PCB layout specifications. Check that the ±50ppm frequency stability meets the system timing requirements.
Oscillators Selection Notes
Select this component for applications requiring a precise 37.8 MHz reference clock with low profile packaging. The 1.8V operation makes it suitable for battery-powered or low-voltage digital circuits. The standby feature allows for energy savings during idle periods. Consider the -40°C to 85°C range for general commercial and industrial environments.
Oscillators Part Context
This model belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies with standardized LVCMOS outputs. The 'PD' suffix specifically denotes the inclusion of a power-down pin for active control. These components are designed for high reliability in space-constrained electronics.
Oscillators Replacement Considerations
- 18QHTF21-37.800-OE
Oscillators FAQ
What does the PD suffix indicate?
The PD suffix indicates that the oscillator includes a Standby (Power Down) control function.
What is the output logic type?
The output logic type is LVCMOS.
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