Based on the model number provided, the **KADS-4B-R** belongs to the **KADS series** of DIP switches (Dual In-line Package) manufactured by companies like **Diptronics** or similar electronic component suppliers. The "SLASHQ" suffix often refers to specific packaging or environmental compliance (like RoHS/Lead-Free) in industrial catalogs. --- ## 1. Technical Specifications Table The KADS-4B-R is a low-profile, piano-type DIP switch. Here are its core electronic and mechanical specifications: | Feature | Specification | | :--- | :--- | | **Switch Type** | DIP Switch (Piano Actuator) | | **Number of Positions** | 4-Pole (4 individual switches) | | **Contact Material** | Gold over Nickel (usually) | | **Current Rating (Switching)** | 25mA, 24VDC | | **Current Rating (Non-Switching)**| 100mA, 50VDC | | **Contact Resistance** | 50mΩ Max (Initial) | | **Insulation Resistance** | 100MΩ Min at 500VDC | | **Operating Temperature** | -40°C to +85°C | | **Mounting Type** | Through-hole (THT) | --- ## 2. Key Electronic Components & Materials To understand the "electronic parts" of this component, we look at the internal construction: ### A. The Actuator (Piano Style) The "4B" designates the number of positions, and the "Piano" style means the levers are side-actuated. This is ideal for edge-of-board mounting where access from the top is restricted. ### B. Contact System * **Wiping Action:** These switches use a sliding/wiping contact mechanism. Every time you flip the switch, the metal contacts rub against each other, which helps clear away oxidation and ensures a reliable electrical path. * **Gold Plating:** To prevent corrosion over long periods of inactivity, the contacts are typically plated with gold. ### C. The Housing * **Base & Cover:** Usually made of High-Temperature Thermoplastic (UL94V-0 rated). This allows the part to survive wave soldering processes without melting. * **Sealing:** The "R" in the part number often indicates **Raised** actuators or a specific **Tape Seal** (though usually "T" is for tape), allowing the part to be washed after soldering to remove flux. --- ## 3. Terminal Configuration The KADS-4B-R uses a standard pitch for PCB integration: ```text Pin Spacing (Pitch): 2.54mm (0.1 inch) Row Spacing: 7.62mm (0.3 inch) ``` This makes it compatible with standard breadboards and universal PCB grids. --- ## 4. Typical Applications * **Address Setting:** Setting binary addresses for devices on a BUS (like RS-485 or DMX). * **Configuration:** Selecting operating modes on industrial motherboards. * **Security:** Setting manual pin codes for garage door openers or transmitters.