The **FYA-R1715ZX** is a high-performance **LED Numeric Display** component, typically used for digital readouts, clocks, and industrial instrumentation. It is manufactured by **FORYARD Optoelectronics**, a specialist in LED display solutions. ### 1. Technical Specifications The following table summarizes the key electronic characteristics of the FYA-R1715ZX series: | Parameter | Specification | | :--- | :--- | | **Display Type** | Single Digit 7-Segment LED | | **Character Height** | 1.75 Inches (44.50 mm) | | **Configuration** | Common Anode or Common Cathode | | **Forward Current ($I_f$)** | 20mA per segment (typical) | | **Forward Voltage ($V_f$)** | ~2.0V (Red) to 3.2V (Blue/White) | | **Luminous Intensity** | High brightness options available | | **Connection Type** | Through-hole (DIP) | --- ### 2. Physical Layout and Pinout The "ZX" suffix often refers to specific internal wiring and color codes. Generally, a 7-segment display like this consists of: * **Segments A-G:** The eight LEDs (including the decimal point) that form the digit. * **Common Pin:** Depending on the model, all internal LED anodes (positive) or cathodes (negative) are tied to a single pin. * **Large Format Design:** Because the character is 1.75 inches tall, each segment often contains **two or more LEDs in series** internally to ensure uniform brightness across the larger surface area. ### 3. Key Electronic Features * **High Contrast:** Designed with a black or grey surface to improve the visibility of the segments when illuminated. * **Durability:** Solid-state reliability with a long operational life (typically 50,000+ hours). * **Multiplexing Capability:** Compatible with standard LED drivers and microcontrollers (like Arduino, ESP32, or industrial PLCs) using multiplexing to save I/O pins. * **Low Power Consumption:** Despite its large size, it operates efficiently at low current levels. --- ### 4. Application Circuit Diagram (Concept) To drive this part with a microcontroller, you must use current-limiting resistors for each segment to prevent burnout. ```cpp // Example: Basic segment activation logic void setup() { pinMode(SEG_A, OUTPUT); // ... initialize other pins } void loop() { // To display '1', light segments B and C digitalWrite(SEG_B, HIGH); digitalWrite(SEG_C, HIGH); } ``` ---