The **C-3SLN-R** is a specific type of **DC Power Jack** (Coaxial Power Connector). These components are critical in electronic design for connecting an external power supply (like a wall adapter) to a device's internal PCB. Below is a detailed breakdown of its electronic specifications and mechanical properties. --- ### 1. General Specifications | Feature | Description | | :--- | :--- | | **Component Type** | DC Power Jack / Barrel Jack | | **Mounting Type** | Through-Hole (PCB Mount) | | **Orientation** | Right Angle | | **Pin Diameter** | 2.0mm (Standard for many consumer electronics) | | **Shielding** | Non-Shielded / Plastic Housing | ### 2. Electrical Characteristics These parts are rated for low-voltage DC input. Exceeding these values can lead to overheating or dielectric breakdown. * **Current Rating:** Typically 2.0A to 5.0A (Check specific manufacturer datasheet for thermal limits). * **Voltage Rating:** Usually up to 16V DC - 24V DC. * **Contact Resistance:** $\le$ 30m$\Omega$ (Initial). * **Insulation Resistance:** $\ge$ 100M$\Omega$ at 500V DC. * **Dielectric Withstanding Voltage:** 500V AC for 1 minute. ### 3. Mechanical & Physical Features The "SLN" and "R" in the suffix usually denote specific physical configurations: * **Internal Switch:** Most versions of this jack include a "Normally Closed" shunt. When the plug is inserted, it physically pushes a spring contact, breaking the connection between the battery and the circuit to allow the external DC source to take over. * **Housing Material:** High-temperature Thermoplastic (UL94V-0 rated). * **Terminals:** Usually Brass or Copper Alloy with Tin or Silver plating for optimal solderability. * **Pin Configuration:** 3-pin layout (Power, Ground, and Shunt/Switch). ### 4. Typical Applications * Laptops and Peripherals. * Consumer electronics (Bluetooth speakers, Routers). * Testing and Measurement equipment. * Battery-powered devices that require a "Line-in" power bypass. --- ### Comparison: 2.0mm vs 2.5mm It is important to note that the **C-3SLN-R** features a **2.0mm center pin**. This is often confused with the 2.5mm variant. | Measurement | C-3SLN-R (2.0mm) | Alternative (2.5mm) | | :--- | :--- | :--- | | **Center Pin** | 2.0mm | 2.5mm | | **Outer Diameter** | 5.5mm | 5.5mm | | **Compatibility** | Standard "Yellow" or "Black" Tips | Larger "Green" or "White" Tips |