EmbeddedRelated.com
The 2026 Embedded Online Conference
ASTX-H12-12.000MHZ-T

ASTX-H12-12.000MHZ-T

Abracon LLC
12 MHz TCXO HCMOS Oscillator 3.3V Enable/Disable 4-SMD, No Lead
Active1,253 in stock

Overview

The ASTX-H12-12.000MHZ-T is a 12 MHz Temperature Compensated Crystal Oscillator (TCXO) designed for applications requiring high precision in a compact 2.5mm x 2.0mm footprint. It provides an HCMOS output with a stable +/-2.5ppm frequency tolerance across a wide operating temperature range of -20C to +75C. Operating at 3.3V, this component includes an enable/disable function for power-sensitive designs.

Why Choose This Part

This TCXO offers superior frequency stability of +/-2.5ppm compared to standard crystal oscillators, making it ideal for narrowband communications. Its small 4-SMD package saves significant PCB real estate, while the integrated HCMOS buffer simplifies interface circuitry with most modern MCUs.

Applications

Wireless Communication Hubs
Provides a stable reference clock for RF transceivers where frequency drift must be minimized to maintain link reliability.
Precision Timing for IoT
Acts as a primary clock source for microcontrollers in low-power wide-area networks requiring tight synchronization.
Industrial Instrumentation
Ensures accurate data logging and signal processing in equipment subjected to varying thermal environments.

Key Specifications

Type TCXO
Output HCMOS
Function Enable/Disable
Frequency 12 MHz
Mounting Type Surface Mount
Base Resonator Crystal
Package / Case 4-SMD, No Lead
Size / Dimension 0.098" L x 0.079" W (2.50mm x 2.00mm)
Voltage - Supply 3.3V
Frequency Stability +/-2.5ppm
Height - Seated (Max) 0.037" (0.95mm)
Operating Temperature -30degC ~ 75degC
Current - Supply (Max) 4.8mA
Supplier Device Package 4-SMD (2.5x2)

Getting Started

Ensure a 0.01uF to 0.1uF bypass capacitor is placed as close as possible to the VDD pin (Pin 4) to minimize noise. When using the enable/disable function on Pin 1, verify the logic levels match your 3.3V system rail to avoid unintended tri-stating of the HCMOS output.

The 2026 Embedded Online Conference