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：7.9872 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：7.9872 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：-
Download product information
Overview
The 18QHTF21-7.9872-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 7.9872 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning at a supply voltage of 1.8V. It features an integrated enable/disable control pin for power management flexibility. The component is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6 mm, suitable for space-constrained surface-mount designs.
Feature Summary
- Supports enable/disable functionality via dedicated control pin
- Utilizes LVCMOS output interface for digital compatibility
- Compact 2.0x1.6 mm SMD footprint for dense PCB layouts
Applications
- Consumer electronics requiring precise timing signals
- Portable devices utilizing low-voltage power supplies
- Embedded systems needing clock generation for microcontrollers
Procurement Notes
Verify the specific suffix '-OE' against official Mercury Electronics documentation to confirm the exact enable/disable configuration and tolerance class. Ensure the 1.8V supply requirement aligns with your system design. Cross-reference the 2.0x1.6mm package dimensions with your PCB footprint library before finalizing procurement orders.
Selection Notes
Select this component when a 7.9872 MHz clock source is required in a minimal 4-pin SMD form factor. The 1.8V operating voltage makes it suitable for modern low-power digital circuits. Consider the enable/disable feature if power conservation during idle states is a critical design requirement compared to always-on oscillators.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The series includes various frequencies and voltage options, all sharing the same small outline package style. Mercury Electronics has been a supplier of such components since 1973, focusing on Taiwan-manufactured timing solutions.
Replacement Considerations
Direct substitutes must match the 7.9872 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify that any alternative part supports the enable/disable function if that feature is utilized in the circuit design.
