The **FTS-10-R/BL** refers to a specific series of high-quality **photoflash capacitors** (often manufactured by companies like Rubycon). These components are designed specifically for high-energy discharge applications, such as camera flashes, strobe lights, and medical defibrillators. --- ## 1. Technical Specifications The part number typically breaks down into the series identifier and specific physical attributes. Below are the general specifications for this class of component: | Feature | Description | | :--- | :--- | | **Component Type** | Aluminum Electrolytic Capacitor (Photoflash Grade) | | **Dielectric** | Aluminum Oxide | | **Voltage Rating** | Typically 300V to 360V DC | | **Capacitance Range** | Ranges from 30µF to over 200µF (depending on the specific sub-model) | | **Operating Temp** | -20°C to +55°C | | **Termination** | Radial Leads (R) | | **Color/Sleeve** | Black (BL) | --- ## 2. Key Electronic Characteristics ### A. High Peak Current Discharge Unlike standard electrolytic capacitors used for filtering, the FTS series is built with a low **ESR (Equivalent Series Resistance)**. This allows the stored energy to be released almost instantaneously to trigger a xenon flash tube. ### B. Specialized Construction * **Anode Foil:** Uses a high-gain etched foil to maximize energy density in a small volume. * **Safety:** These are designed to withstand rapid charge/discharge cycles without significant internal heating or gas buildup. ### C. Physical Dimensions The "10" in the part number often corresponds to the diameter (e.g., 10mm), though this can vary by manufacturer catalog. The "R" indicates a radial lead configuration (leads coming out of one end), and "BL" refers to the black PVC or PET shrink sleeve. --- ## 3. Common Applications Due to their ability to store high voltage and release it quickly, they are found in: 1. **Consumer Electronics:** Compact digital camera flashes and professional external speedlights. 2. **Signal Lighting:** Emergency beacons and aviation obstruction lights. 3. **Optics:** Laser pumping systems and strobe-based measurement tools. --- ## 4. Safety Warning > **DANGER:** Photoflash capacitors like the FTS-10-R/BL can hold a lethal electrical charge even after power has been disconnected from the device. Always discharge them through a high-wattage resistor before handling.