The **AP6M222-R** is a specific model within the **AP6M series** of miniature industrial switches/indicators, typically manufactured by **IDEC**. This part number corresponds to a 16mm Pilot Light (Indicator). --- ## 1. Technical Specifications The AP6M series is known for its compact design, making it ideal for control panels with limited space. | Feature | Specification | | :--- | :--- | | **Mounting Hole Size** | 16mm (5/8 inch) | | **Illumination Type** | LED (High intensity) | | **Voltage** | 24V AC/DC (Standard for this series) | | **Color** | **R** stands for **Red** | | **Lens Shape** | Round / Dome | | **Termination** | Solder or Tab terminals | | **Protection Rating** | IP65 (Oil-tight, Waterproof, Dust-tight) | --- ## 2. Part Number Breakdown Understanding the suffix codes helps identify the specific electronic characteristics: * **AP6M**: Series designation (16mm Miniature Pilot Light). * **2**: Lens style (usually represents a specific dome or flat shape). * **22**: Voltage code (typically indicates 24V AC/DC). * **-R**: Color code (Red). --- ## 3. Key Electronic Components The device is relatively simple but consists of these critical electronic parts: ### A. Integrated LED Chip Unlike older incandescent lamps, the AP6M222-R uses a built-in LED. This provides: * **Lower Power Consumption:** Usually under 15mA. * **Long Life:** Rated for approximately 50,000 to 100,000 hours of continuous use. ### B. Current Limiting Resistor Inside the housing, there is a fixed resistor matched to the 24V input. This prevents the LED from burning out by regulating the current flow. ### C. Polarity Protection Because it is rated for **AC/DC**, the internal circuitry often includes a bridge rectifier or a specific diode arrangement, allowing it to function regardless of which terminal is positive or negative (non-polarized). --- ## 4. Physical Dimensions & Installation * **Bezel Size:** Approximately 18mm diameter. * **Depth Behind Panel:** Very shallow (usually <40mm), allowing for high-density stacking. * **Panel Thickness:** Can be mounted on panels ranging from 0.5mm to 6mm thick. ---