The part number **296HC503C2C** refers to a high-performance **Polypropylene Film Capacitor**, typically manufactured by companies like **Illinois Capacitor** (now part of Cornell Dubilier/CDE). These components are designed for high-current, high-frequency applications. --- ### 1. Technical Specifications Based on the standard nomenclature for the HC series, here are the primary technical parameters: | Parameter | Value / Description | | :--- | :--- | | **Capacitance** | 50.0 µF (Microfarads) | | **Voltage Rating** | 300 VAC / 500 VDC (typical for this series) | | **Tolerance** | ±10% (denoted by 'K') or ±5% (denoted by 'J') | | **Dielectric Material** | Metallized Polypropylene | | **Terminal Type** | Direct Mount / Solder Lugs (HC series characteristic) | | **Operating Temperature** | -40°C to +85°C | --- ### 2. Part Number Breakdown The alphanumeric code follows a specific logic used by the manufacturer: * **296**: Internal manufacturer prefix or series variant. * **HC**: Refers to the **HC Series** (High Current/High Frequency). * **503**: The capacitance value. The "50" are the significant digits, and "3" is the multiplier (10^3). $50 \times 1,000 = 50,000,000$ pF, which equals **50 µF**. * **C2C**: Refers to the physical case size, lead spacing, and terminal configuration. --- ### 3. Key Features & Applications These capacitors are engineered for environments where standard electrolytic capacitors would fail due to heat or ESR (Equivalent Series Resistance). #### Key Features: * **Self-Healing:** If a dielectric breakdown occurs, the metallized layer vaporizes around the point of failure, preventing a short circuit. * **Low ESR/ESL:** Extremely low internal resistance and inductance, allowing for high ripple current handling. * **Dry Construction:** Unlike electrolytic capacitors, there is no liquid electrolyte to leak or dry out. #### Common Applications: 1. **Induction Heating:** Used in the resonant tank circuits of industrial heaters. 2. **EV Charging/Inverters:** Used for DC-Link filtering or AC output filtering in power converters. 3. **Solar Inverters:** Handling high-frequency pulses in renewable energy systems. 4. **Motor Drives:** Snubber circuits and power factor correction. --- ### 4. Handling and Safety * **Discharge:** Because 50µF is a significant amount of capacitance, this part can store a lethal charge even after power is disconnected. Always use a bleed resistor to discharge. * **Mounting:** Ensure the lugs are tightened to the correct torque or soldered cleanly to prevent high-resistance contact points, which can lead to overheating at high currents.