The part number **ABM2-R4W6A2-R** refers to a high-precision surface-mount (SMD) quartz crystal manufactured by **Abracon**. This component is specifically designed to provide a stable frequency reference for electronic circuits. --- ### 1. Technical Specifications The following table summarizes the key electrical and mechanical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Component Type** | Quartz Crystal (SMD) | | **Package Size** | 8.0 x 4.5 x 1.4 mm (ABM2 Package) | | **Frequency** | Specific to order (Typically MHz range) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Frequency Tolerance** | ±20 ppm | | **Frequency Stability** | ±30 ppm | | **Load Capacitance** | 18 pF (Standard) | | **Equivalent Series Resistance (ESR)** | < 60 Ohms (depending on frequency) | | **RoHS Status** | Compliant (Lead-Free) | --- ### 2. Part Number Breakdown The suffixing in the part number provides details regarding the specific configuration: * **ABM2**: Series designation (8.0 x 4.5mm ceramic package). * **R4**: Specific frequency tolerance/stability code. * **W**: Operating Temperature code (typically -40°C to +85°C). * **6**: Load capacitance designator. * **A2**: Custom internal revision or manufacturing code. * **R**: Packaging type (Tape & Reel). --- ### 3. Key Features and Applications The ABM2 series is known for its reliability and low profile. #### **Features** * **Hermetically Sealed:** Uses a glass-to-metal or seam-sealed ceramic package to protect the quartz from moisture. * **Low ESR:** Ensures the oscillator circuit starts up quickly and consumes less power. * **High Stability:** Maintains frequency accuracy across a wide temperature range. #### **Common Applications** * **Microprocessors:** Providing the clock signal for CPUs and MCUs. * **Wireless Communication:** Used in Bluetooth, Wi-Fi, and Zigbee modules. * **Industrial Electronics:** Controllers and sensors requiring high-temperature durability. * **Modems and Network Hubs:** Ensuring synchronization in data transmission. --- ### 4. Typical Circuit Integration In a standard Pierce Oscillator configuration, the crystal is connected as follows: ```c // Schematic Representation [MCU_XTAL_IN] ----+---- [Crystal] ----+---- [MCU_XTAL_OUT] | | [Cap1] [Cap2] | | [GND] [GND] ```