The part number **RTT-16V681MJHT-R5** refers to an Aluminum Electrolytic Capacitor, typically manufactured by companies like **Man Yue (Samxon)** or similar specialized passive component manufacturers. This specific component is designed for surface-mount technology (SMT) and is characterized by its high capacitance and low impedance. --- ### 1. Part Number Breakdown Based on standard industry naming conventions for this series, here is the technical breakdown: | Code Segment | Meaning | Specification | |:---|:---|:---| | **RTT** | Series Prefix | Often denotes a Low Impedance / High Reliability series | | **16V** | Voltage Rating | 16 Volts (Maximum working voltage) | | **681** | Capacitance Code | 680 µF (68 followed by 1 zero) | | **M** | Tolerance | ±20% | | **JHT** | Case Size / Type | Specific physical dimensions (typically ~10x10.5mm) | | **R5** | Packaging | Tape & Reel (R) with specific reel size (5) | --- ### 2. Key Technical Specifications These parts are generally used in power management circuits where stability and heat resistance are required. * **Capacitance:** 680 Microfarads (µF) * **Rated Voltage:** 16V DC * **Operating Temperature:** Typically -55°C to +105°C * **Mounting Type:** SMD (Surface Mount Device) / V-Chip * **Polarity:** Polarized (must be installed in the correct orientation) * **Impedance:** Low ESR (Equivalent Series Resistance), making it suitable for high-frequency filtering. --- ### 3. Applications The RTT series is commonly found in the following electronic environments: 1. **DC-DC Converters:** Filtering output noise and stabilizing voltage. 2. **Motherboards/Graphic Cards:** Providing local power decoupling for processors. 3. **LED Lighting Drivers:** Managing current ripples to prevent flickering. 4. **Telecommunications:** Power supply modules requiring long life and heat resistance. --- ### 4. Schematic Symbol & PCB Footprint When designing a PCB for this part, ensure the footprint matches the **"JHT"** case size (usually an E-size or G-size V-chip). ```markdown Symbol: (+) ----|(---- (-) Capacitor ``` **Design Note:** Aluminum electrolytic capacitors have a shorter lifespan than ceramic or tantalum capacitors. Always check the "Load Life" rating (e.g., 2000 to 5000 hours at 105°C) in the datasheet to ensure it meets the product's intended longevity.