The **EB2-4.5TNUE-R** is a specific model of signal relay produced by **KEMET** (formerly NEC/Tokin). It belongs to the EB2 series, which are compact, surface-mount (SMD) miniature relays designed for high density and reliability. --- ### ## Technical Specifications Table | Feature | Specification | | :--- | :--- | | **Series** | EB2 Series (Miniature Signal Relay) | | **Coil Voltage** | 4.5 VDC | | **Contact Form** | 2 Form C (DPDT - Double Pole Double Throw) | | **Latching Type** | Non-latching (Single side stable) | | **Contact Material** | Silver alloy with gold overlay | | **Maximum Switching Power** | 30W (DC), 62.5VA (AC) | | **Maximum Switching Voltage** | 220VDC / 250VAC | | **Maximum Switching Current** | 1A | | **Mounting Type** | Surface Mount (SMD) | | **Terminal Shape** | Gull-wing (Standard for SMD) | --- ### ### Key Features and Construction * **Miniature Footprint:** Designed to occupy minimal PCB real estate, making it ideal for modern telecommunication and medical devices. * **Low Power Consumption:** The coil is optimized for low power consumption, which is critical for battery-operated or energy-efficient electronics. * **High Reliability:** Features a twin crossbar contact system to ensure low contact resistance and stable switching even at very low signal levels. * **Safety Standards:** Complies with FCC (Part 68) surge requirements (1500V) and UL/CSA safety standards. --- ### ### Part Number Breakdown Understanding the suffix codes: * **EB2:** Series identifier. * **4.5:** Nominal coil voltage (4.5V). * **T:** High breakdown voltage type. * **NUE:** Standard SMD configuration (Gull-wing terminals). * **-R:** Indicates "Tape and Reel" packaging (used for automated pick-and-place assembly). --- ### ### Typical Applications * **Telecommunications:** PABX systems, modems, and networking equipment. * **Measurement Equipment:** Oscilloscopes and signal generators. * **Medical Electronics:** Diagnostic and monitoring tools. * **Audio/Video Equipment:** Signal routing and switching.