The **RSS-2415-R** is a DC/DC converter manufactured by **RECOM Power**. It is part of the RSS series, which consists of sub-miniature, isolated, unregulated converters designed for board-level power distribution. --- ### ## 1. Technical Specifications The part number follows a specific nomenclature that defines its electronic characteristics: | Parameter | Specification | Details | | :--- | :--- | :--- | | **Input Voltage** | 24V DC | Range typically ±10% (21.6V - 26.4V) | | **Output Voltage** | 15V DC | Single unregulated output | | **Output Current** | 66mA | Maximum load current | | **Power Rating** | 1 Watt | Total output power capacity | | **Isolation Voltage** | 1kV DC | Input-to-output isolation (1 minute) | | **Efficiency** | 80% - 84% | Typical efficiency at full load | | **Package Style** | SMD | Surface Mount Device (8-pin) | --- ### ## 2. Pin Configuration The "R" suffix indicates the reel packaging, but the physical component usually follows the standard SMD-8 footprint. | Pin Number | Function | Description | | :--- | :--- | :--- | | 1 | -Vin | Ground/Negative Input | | 2 | +Vin | Positive Input (24V) | | 3 | NC | No Connection | | 5 | -Vout | Negative Output (0V Reference) | | 8 | +Vout | Positive Output (15V) | | Others | NC | Remaining pins are used for mechanical stability | --- ### ## 3. Electronic Features & Behavior * **Unregulated Output:** As an unregulated converter, the output voltage is not fixed. It fluctuates based on the load (load regulation) and the input voltage (line regulation). If the load is very light (under 10%), the output voltage may rise significantly above 15V. * **Galvanic Isolation:** It provides a physical barrier between the 24V input side and the 15V output side, which is critical for breaking ground loops and reducing noise in sensitive analog circuits. * **Protection:** It generally includes short-circuit protection (usually limited to 1 second) to prevent catastrophic failure during faults. * **Operating Temperature:** Typically rated for **-40°C to +85°C** without derating, making it suitable for industrial environments. --- ### ## 4. Common Applications * **Industrial Controls:** Powering 15V sensors from a standard 24V PLC rail. * **Digital/Analog Separation:** Providing a "clean" isolated 15V supply for Op-Amps to prevent digital switching noise from entering the signal path. * **Data Communication:** Powering isolated RS-485 or CAN bus transceivers.