The part number **5-059-13** typically refers to a specific **Power Resistor** component, often manufactured by companies like **Ohmite** (specifically the 270 series) or used as a proprietary spare part number in industrial machinery and vintage audio equipment (like Sony or Hewlett-Packard). Below is a breakdown of the electronic specifications and characteristics associated with this part classification. --- ## 1. Component Overview In the context of power electronics, a 5-059-13 part is usually a **Wirewound Resistor**. These are designed to handle high power loads and dissipate heat efficiently. ### Technical Specifications | Feature | Typical Specification | | :--- | :--- | | **Component Type** | Fixed Wirewound Resistor | | **Resistance Value** | Variable (Depends on the full kit, often 5.9k Ohms or specific to series) | | **Power Rating** | 10 Watts to 25 Watts (Commonly) | | **Tolerance** | ±5% | | **Core Material** | Ceramic / Steatite | | **Coating** | Vitreous Enamel or Silicone | --- ## 2. Key Physical Characteristics * **Tubular Construction:** The resistor is built around a ceramic core to withstand high temperatures without cracking. * **Solder Lug Terminals:** It usually features metal lugs at each end for manual soldering or bolt-on mounting, rather than PCB pins. * **Vitreous Enamel Coating:** This provides excellent protection against moisture and mechanical damage, allowing the part to operate in harsh environments. --- ## 3. Common Applications Parts under this designation are frequently found in: 1. **Industrial Controls:** Used for voltage dropping or current limiting in motor starters. 2. **Audio Equipment:** Found in older amplifiers and power supply stages as "Bleeder Resistors" to discharge capacitors. 3. **Test Equipment:** Used in legacy HP or Tektronix gear as part of the internal calibration or power regulation circuitry. 4. **Load Simulation:** Used to simulate a load during power supply testing. --- ## 4. Maintenance and Safety If you are replacing a 5-059-13 part, consider the following: * **Heat Dissipation:** These parts get extremely hot during operation. Ensure there is adequate airflow and that the resistor is not touching heat-sensitive components (like plastic wires or electrolytic capacitors). * **Continuity Testing:** Use a multimeter to check for an "Open Loop" (OL). If the wirewound internal coil snaps due to overcurrent, the circuit will break. * **Equivalent Substitutes:** If sourcing an original is difficult, ensure the replacement has the same **Ohmic value** and an **equal or higher Wattage** rating.