The **RTD-1205-R** is a high-performance, isolated DC/DC converter manufactured by **RECOM Power**. It belongs to the **RTD series**, which is specifically designed for industrial applications requiring dual output voltages from a single input source. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical characteristics of the RTD-1205-R: | Parameter | Specification | | :--- | :--- | | **Input Voltage** | 12V DC (Nominal) | | **Output Voltage 1** | +5V DC | | **Output Voltage 2** | -5V DC | | **Output Power** | 2 Watts | | **Isolation Voltage** | 1kV DC (standard) | | **Efficiency** | 80% to 84% (Typical) | | **Package Style** | DIP14 (Dual In-line Package) | --- ### 2. Functional Description The device acts as a **Dual Output Converter**. It takes a single 12V supply and converts it into a symmetrical ±5V supply. This is particularly useful in analog circuits where operational amplifiers (Op-Amps) require both positive and negative rails to process signals. #### Internal Components & Mechanism: * **Oscillator:** Converts the DC input into a high-frequency AC signal. * **Transformer:** Provides galvanic isolation between the input and the output, protecting sensitive components from voltage spikes. * **Rectification & Filtering:** Converts the AC back to stable DC and smooths out the ripple voltage. --- ### 3. Pin Configuration The RTD-1205-R typically follows a standard DIP14 footprint. Below is a general representation of the pinout: | Pin Number | Function | Description | | :--- | :--- | :--- | | 1 | -Vin | Negative Input Voltage | | 7 | NC | No Connection | | 8 | Common | Common Ground for Outputs | | 9 | +Vout | Positive 5V Output | | 11 | -Vout | Negative 5V Output | | 14 | +Vin | Positive Input Voltage (12V) | --- ### 4. Common Applications * **Operational Amplifiers:** Providing the ±5V rails needed for high-fidelity signal conditioning. * **Data Acquisition:** Powering sensors that require dual-polarity power to measure bidirectional signals. * **Industrial Controls:** Isolating control logic from noisy power lines to prevent data corruption. * **Telecom:** Used in localized power distribution on line cards. --- ### 5. Features & Protection * **Short Circuit Protection:** Most models in this series include limited protection against output shorts. * **Temperature Range:** Operates effectively between **-40°C to +85°C** without derating. * **RoHS Compliant:** The "-R" suffix indicates compliance with environmental standards regarding hazardous substances.