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18QHTF21-19.950-PD is listed in the Oscillators range at ChipApex. The manufacturer field lists Mercury Electronics Ind. Co. Ltd. Its product description is 19.95 MHz XO 1.8V 2.0X1.6 MM PD. Review the specifications below when checking this part for your BOM.
Oscillators specifications for 18QHTF21-19.950-PD
- Description：19.95 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：19.95 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)：22mA
- 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 18QHTF21-19.950-PD
Oscillators Overview
The 18QHTF21-19.950-PD is a 19.95 MHz XO (Standard) LVCMOS Oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a supply voltage of 1.8V and features a Standby (Power Down) function. The component is housed in a 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.
Oscillators Feature Summary
- LVCMOS output interface
- Standby (Power Down) capability
Oscillators Applications
- General electronic circuits requiring standard clock signals
- Low-voltage digital systems operating at 1.8V
- Compact embedded designs utilizing surface mount technology
Oscillators Procurement Notes
Verify the specific frequency tolerance and stability specifications against the official datasheet for the 18QHTF21-19.950-PD variant. Confirm that the 1.8V supply requirement aligns with the target system design. Ensure the 4-SMD No Lead package footprint matches the PCB layout constraints before finalizing procurement orders.
Oscillators Selection Notes
Select this oscillator when a 19.95 MHz standard frequency is required within a low-power 1.8V environment. The choice is driven by the need for an LVCMOS output compatible with standard logic families and the physical space limitations addressed by the compact 2.0x1.6 mm SMD package. Consider the standby feature if power management during idle states is a design priority.
Oscillators Part Context
This component belongs to the QHTF series of quartz crystal oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages, including 3.3V variants like the 3QHTF21 series. The '18' prefix indicates the 1.8V operating voltage, distinguishing it from higher voltage counterparts in the same form factor family.
Oscillators Replacement Considerations
Direct substitutes may include other 19.95 MHz LVCMOS oscillators in a 4-SMD No Lead 2.0x1.6mm package with 1.8V operation. Verify pinout compatibility and electrical characteristics such as phase noise and jitter against original specifications.
Explore related parts through Crystals, Oscillators, Resonators, all product categories, ChipApex homepage.
