The **FYA-R22010ZX** is a specific electronic component belonging to the **LED Bar Graph Display** family, typically manufactured by companies like *Foryard Optoelectronics*. It is designed to provide a linear visual representation of data (such as volume, battery life, or signal strength). --- ## 1. Technical Specifications This component is a **10-Segment Bar Graph Array**. Below are the typical technical parameters: | Feature | Specification | | :--- | :--- | | **Segment Count** | 10 individual LEDs | | **Light Color** | Red (Standard for 'R' designation) | | **Configuration** | Black Surface, White Segments (OFF) | | **Polarity** | Standard (Common Anode or Cathode variants exist) | | **Forward Voltage ($V_f$)** | 1.8V to 2.2V per segment | | **Forward Current ($I_f$)** | 20mA (Max per segment) | | **Peak Wavelength** | ~640nm to 660nm | --- ## 2. Pinout and Internal Structure The device usually comes in a **20-pin Dual In-line Package (DIP)**. This allows for easy mounting on PCBs or breadboards. * **Pin Logic:** Each of the 10 segments has its own anode and cathode. * **Total Pins:** 20 pins (10 segments $\times$ 2 pins each). * **Physical Dimensions:** Typically $25.4mm \times 10.16mm \times 8.0mm$. ### Internal Diagram Representation ```text (Top View) 1 2 3 4 5 6 7 8 9 10 [=][=][=][=][=][=][=][=][=][=] <-- LED Segments 20 19 18 17 16 15 14 13 12 11 ``` --- ## 3. Key Features 1. **Uniformity:** Provides high-intensity light output with uniform appearance across all 10 segments. 2. **Stackability:** The rectangular casing is designed so multiple units can be placed side-by-side to create a longer bar (e.g., 20 or 30 segments). 3. **Durability:** Solid-state reliability with a long lifespan compared to mechanical indicators. 4. **Compatibility:** Easily driven by ICs like the **LM3914** (Dot/Bar Display Driver) or directly by microcontroller GPIOs (using current-limiting resistors). --- ## 4. Typical Applications * **Audio Equipment:** VU meters for sound levels. * **Industrial Control:** Temperature or pressure indicators. * **Power Systems:** Battery charge level indicators. * **Consumer Electronics:** Signal strength meters on wireless devices. ---