## UD12KG-AL6-R Electronic Component Overview The **UD12KG-AL6-R** belongs to the **UD series** of ultra-miniature, high-sensitivity signal relays, typically manufactured by companies like **NEC/TOKIN** (now part of KEMET/Yageo). These are surface-mount devices (SMD) designed for low-power signal switching applications. --- ### 1. Part Number Breakdown Based on standard industry naming conventions for this series, here is the functional breakdown: | Part Code | Segment | Description | | :--- | :--- | :--- | | **UD2** | Series | Ultra-miniature Signal Relay (Deltatype) | | **12** | Coil Voltage | 12V DC nominal voltage | | **KG** | Contact Type | High reliability, gold-overlay silver alloy | | **AL6** | Packaging/Spec | Specifically relates to lead-frame and terminal finish | | **R** | Packing Style | Tape and Reel packaging | --- ### 2. Technical Specifications These components are prized for their extremely small footprint and low power consumption. * **Contact Arrangement:** 2 Form C (DPDT - Double Pole Double Throw). * **Nominal Coil Voltage:** 12V DC. * **Max Switching Power:** Typically 30W / 62.5VA. * **Max Switching Voltage:** 220V DC / 250V AC. * **Max Switching Current:** 1.0 A. * **Dielectric Strength:** 1000V AC between open contacts; 1500V AC between coil and contacts. * **Mounting Type:** SMD (Surface Mount Device). --- ### 3. Key Features 1. **High Sensitivity:** Designed to operate with very low coil power (often as low as 140mW). 2. **Compact Size:** Minimal PCB real estate required, making it ideal for high-density boards. 3. **Telecom/Signal Quality:** High breakdown voltage and excellent insulation resistance. 4. **Surge Resistance:** Complies with FCC (Part 68) 1500V surge requirements. --- ### 4. Typical Applications The UD12KG series is commonly found in precision electronics including: * **Telecommunications:** Switching lines in modems, PBX systems, and routers. * **Test & Measurement:** Automated Test Equipment (ATE) where signal integrity is vital. * **Medical Equipment:** Low-power signal isolation and switching. * **Consumer Electronics:** Audio switching and control circuits. --- ### 5. Footprint Example (Generic SMD Signal Relay) ```c [ Top View ] +-----------+ | 8 7 6 | <-- Coil and Contact Pins | | | 1 2 3 | +-----------+ (Polarity marked by notch/stripe) ```