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Product Detailed Parameters
- Description：12.031125 M XO 1.8V 2.0X1.6MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：12.031125 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)：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 18QHTF21-12.031125-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 12.031125 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Integrates enable and disable functionality for power management
- Utilizes LVCMOS output logic for digital interface compatibility
- Designed in a small surface-mount package for space-constrained applications
Applications
- Embedded systems requiring precise timing signals
- Communication equipment utilizing standard clock frequencies
- Consumer electronics with low-voltage logic requirements
Procurement Notes
Verify the specific ordering suffix against official Mercury Electronics documentation to ensure correct voltage and frequency specifications. Confirm that the OE variant matches the required enable/disable pin configuration. Cross-reference the package outline drawing to validate footprint compatibility during PCB design integration.
Selection Notes
Select this component when a 1.8V supply and LVCMOS interface are mandatory. Ensure the 12.031125 MHz frequency aligns with system clock requirements. Evaluate the 2.0x1.6mm package size against available board real estate. Consider thermal performance within the specified operating temperature range for the target environment.
Part Context
This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronic Ind. Co., Ltd. The series offers various frequencies and voltages. The 'OE' suffix typically denotes the inclusion of an enable pin, distinguishing it from standard continuous-output variants within the same physical package family.
Replacement Considerations
Direct substitutes must match the 12.031125 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility, specifically the enable function location. Check if alternative manufacturers offer equivalent electrical characteristics and mechanical dimensions.
