The **F2TS-5D-R** is a specific model of a **Miniature Intermediate Power Relay**, typically manufactured by companies like **Fujitsu** (or as part of their FTR-F2 series). These components are designed for high-density mounting on Printed Circuit Boards (PCBs) to switch electrical loads. --- ## 1. Technical Specifications The model name "F2TS-5D-R" can be broken down into its core electronic characteristics: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Coil Voltage** | 5V DC | The "5D" indicates it requires a 5V direct current to energize. | | **Contact Arrangement** | 2 Form A (DPST-NO) | "2" usually refers to a 2-pole configuration (Double Pole Single Throw). | | **Contact Rating** | 5A to 8A | Rated for medium power switching at 250VAC or 30VDC. | | **Terminal Type** | Through-hole | Designed for standard PCB mounting. | | **Safety Standard** | TV-5 Rated | High inrush current resistance (suitable for TVs and monitors). | --- ## 2. Key Internal Components ### A. The Coil System * **Material:** Copper winding around a core. * **Power Consumption:** Typically low power (approx. 530mW) to allow for drive by small transistors or ICs. * **Polarity:** Standard DC operation; often requires a flyback diode in the circuit to prevent back-EMF spikes. ### B. Contact System * **Material:** Often **Silver Tin Oxide (AgSnO2)**. This material is chosen for its excellent resistance to "welding" during high inrush currents. * **Configuration:** Double-pole, meaning it can control two separate circuits simultaneously with one signal. ### C. Insulation & Housing * **Reinforced Insulation:** Provides a high dielectric strength (typically 5,000VAC between coil and contacts). * **Sealing:** Usually flux-tight or plastic-sealed to protect internal parts during wave soldering. --- ## 3. Common Applications Due to its "TV-5" rating and compact size, this relay is frequently used in: 1. **Consumer Electronics:** Power supplies for televisions and audio equipment. 2. **Smart Home:** Lighting control modules and smart plugs. 3. **Industrial:** Programmable Logic Controllers (PLCs) and small motor starters. 4. **Office Automation:** Copiers and printers for fuser control. --- ## 4. Connection Diagram (General) ```text [ Coil ] [ Contacts ] (Pins 1 & 2) (Pins 3 & 4 / 5 & 6) | | | | | | +---+ +---+ +---+ +--+ +---+ | 5V DC | -----> | Switched Load | +---------+ +---------------+ ```