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Product Detailed Parameters
- Description：13.517 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：13.517 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：-
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Overview
The 18QHTF21-13.517-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 13.517 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features a standby power-down mode for energy efficiency. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm. The maximum supply current is specified as 22mA.
Feature Summary
- Integrates LVCMOS output logic for digital interface compatibility
- Includes standby power-down functionality to reduce consumption
- Utilizes a base crystal resonator for frequency stability
Applications
- Digital signal processing clock sources
- Microcontroller system timing
- Communication interface synchronization
Procurement Notes
Verify the specific frequency tolerance and operating temperature range against the official datasheet before procurement. Confirm that the 4-SMD no-lead package footprint matches the target PCB design. Ensure the 1.8V supply voltage aligns with the system power architecture. Check for any specific ordering suffix requirements regarding packaging or lead finish.
Selection Notes
Select this component when a low-profile 2.00mm x 1.60mm oscillator is required for 13.517 MHz applications. Consider the 22mA current draw and 1.8V operation for power budget calculations. Evaluate the LVCMOS output swing against the receiving input logic levels. Compare physical size constraints against alternative packages like 2520 or 3225 if space permits.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, a supplier specializing in quartz crystals and oscillators. The series typically offers various frequencies within a small surface-mount form factor. Mercury Electronics has established itself in the frequency-control market since 1973, providing timing solutions for industrial and consumer electronics.
Replacement Considerations
Direct substitutes include other 13.517 MHz XO components in 4-SMD packages with LVCMOS outputs. Verify pinout compatibility and electrical specifications such as load capacitance and drive level. Cross-reference with similar series from other manufacturers ensuring identical dimensional and functional parameters.
