The **M3R26FAJ-R** is a specific part number belonging to the **M3R series** of high-performance crystal oscillators manufactured by **MtronPTI**. These components are typically used in telecommunications, networking, and industrial applications where precision timing is critical. --- ### 1. Component Overview The M3R26FAJ-R is a **Crystal Clock Oscillator** housed in a surface-mount (SMD) package. It is designed to provide a stable frequency reference for digital circuits. | Feature | Specification Details | | :--- | :--- | | **Manufacturer** | MtronPTI | | **Series** | M3R (9x14 mm J-Lead Package) | | **Type** | Fixed Frequency Crystal Oscillator | | **Output Type** | HCMOS / TTL Compatible | | **Mounting Type** | Surface Mount (SMD) | | **RoHS Status** | Compliant (indicated by the "-R" suffix) | --- ### 2. Part Number Breakdown (Decoding) To understand the exact electronics of the M3R26FAJ-R, we can break down the alphanumeric code based on MtronPTI’s naming convention: * **M3R**: The series designation (9x14 mm, 3.3V, J-lead package). * **2**: Operating Voltage. Usually represents **3.3 Volts DC**. * **6**: Stability/Temperature Range code. This typically defines the frequency stability (e.g., ±25ppm or ±50ppm) over a specific temperature range. * **FA**: Frequency code or specific internal configuration for HCMOS output. * **J**: Package style (J-lead for better solder joint reliability during thermal cycling). * **-R**: RoHS Compliant (Lead-free). --- ### 3. Key Electronic Characteristics #### A. Output Logic This part generates a **Square Wave** output. It is compatible with **HCMOS** (High-speed Complementary Metal-Oxide Semiconductor) and **TTL** logic levels, making it versatile for interfacing with FPGAs, Microcontrollers, and DSPs. #### B. Tri-State Functionality Most M3R series oscillators include a "Tri-state" or "Output Enable" (OE) pin. * **High (or Floating):** The oscillator outputs the frequency. * **Low:** The output goes into a high-impedance state, reducing power consumption and allowing for system testing. #### C. Physical Construction The internal electronics consist of a quartz crystal resonator coupled with a CMOS integrated circuit (IC) that provides the oscillation gain and output buffering. The **J-Lead** design is specifically engineered for robust mechanical performance in high-vibration environments. --- ### 4. Typical Applications * **Networking:** Switches, routers, and high-speed modems. * **Telecommunications:** Base stations and optical line terminals. * **Industrial:** Data acquisition systems and embedded controllers. * **Computing:** Server motherboards and storage area networks. ---