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Product Detailed Parameters
- Description：12.5288 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：12.5288 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 18QHTF21-12.5288-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 12.5288 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an Enable/Disable control pin for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Integrates Enable/Disable functionality for active power control
- Provides stable LVCMOS signal output for digital interfaces
- Utilizes a low-profile surface-mount package design
Applications
- Precision timing circuits requiring specific clock frequencies
- Embedded systems utilizing 1.8V logic levels
- Compact electronic devices with space constraints
Procurement Notes
Verify the exact part number against official manufacturer documentation to ensure compatibility with system requirements. Confirm that the 1.8V supply voltage and LVCMOS output logic align with the target circuit design. Check for any specific ordering suffixes or variations that may affect performance characteristics before finalizing procurement decisions.
Selection Notes
Select this component when a precise 12.5288 MHz clock source is required within a 1.8V logic environment. The integrated enable/disable feature supports power efficiency strategies in battery-operated applications. Ensure the PCB layout accommodates the 2.0x1.6mm footprint and that thermal considerations are addressed for the small form factor.
Part Context
This model belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequency options while maintaining consistent electrical specifications and physical dimensions. The -OE suffix typically denotes specific packaging or configuration details within the product line.
Replacement Considerations
Direct substitutes must match the 12.5288 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and operational temperature ranges before swapping components.
