ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：121.65 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：121.65 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)：28mA
- 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：-
Download product information
Overview
The 18QHTF21-121.650-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 121.65 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a standby function for power down control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. The component supports an operating temperature range of -40°C to 85°C and offers frequency stability of ±50ppm.
Feature Summary
- Supports low voltage operation at 1.8V
- Includes standby mode for power management
- Compact surface-mount package design
Applications
- Digital signal processing systems
- Communication equipment clocking
- Embedded system timing references
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Ensure the 1.8V supply rail is stable within the specified operating temperature range. Confirm that the PCB footprint matches the 4-SMD no-lead package dimensions to prevent assembly issues during manufacturing.
Selection Notes
Select this component when a precise 121.65 MHz reference is required in space-constrained applications. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the thermal performance and stability specifications to ensure reliable operation across the intended industrial temperature range.
Part Context
This model belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series is characterized by small form factors suitable for portable electronics. The 'PD' suffix indicates the inclusion of a power-down pin functionality, allowing for active energy savings when the oscillator is not in use.
Replacement Considerations
Direct replacements must match the 121.65 MHz frequency, 1.8V supply, and LVCMOS output type. Verify that substitute components support the same 4-SMD no-lead package and operate within the -40°C to 85°C temperature range to maintain system reliability.
