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Product Detailed Parameters
- Description：121.306 MHz XO 1.8V 2.0X1.6MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：121.306 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)：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：-
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Overview
The 18QHTF21-121.306-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 121.306 MHz and utilizes LVCMOS output logic levels. The device is designed for low voltage operation at 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is suitable for applications requiring precise timing signals in space-constrained electronic designs.
Feature Summary
- Provides stable 121.306 MHz timing signal via LVCMOS interface
- Operates on 1.8V supply with integrated enable/disable control
- Utilizes ultra-compact 4-SMD no-lead surface mount package
Applications
- High-speed digital signal processing circuits
- Communication equipment clock sources
- Embedded systems requiring precise timing synchronization
Procurement Notes
Verify the specific suffix 'OE' against manufacturer documentation to confirm exact electrical tolerances and availability status. Ensure the 1.8V supply voltage aligns with target system requirements before integration. Confirm package compatibility with PCB footprint specifications.
Selection Notes
Select this component when a 1.8V LVCMOS oscillator is required at 121.306 MHz. Consider the 2.0x1.6mm footprint for space-limited designs. Evaluate power consumption benefits of the enable/disable feature against system standby requirements.
Part Context
Mercury Electronic Ind. Co., Ltd. specializes in quartz crystal and oscillator manufacturing. The 18QHTF21 series represents their standard XO lineup, offering various frequencies in small form factors. This part belongs to a family of components designed for consumer and industrial electronics requiring reliable frequency control.
Replacement Considerations
Cross-reference with 18QHTF21-121.306-PD for potential functional equivalence. Verify pinout and electrical parameters match exactly before substitution. Consult official distributor databases for current availability of alternative suffixes.
