The **PCC-3-R** is a high-performance, radial-leaded subminiature fuse manufactured by **Eaton (formerly Bussmann)**. It is specifically designed for high-density circuit boards where space is limited and reliability is critical. --- ### ## Technical Specifications Below are the primary electrical and physical characteristics of the PCC-3-R: | Parameter | Specification | | :--- | :--- | | **Current Rating** | 3 Amperes | | **Voltage Rating (AC)** | 250 VAC | | **Voltage Rating (DC)** | 450 VDC | | **Interrupting Rating** | 50 A at 250 VAC / 150 A at 450 VDC | | **Fuse Type** | Fast-Acting | | **Mounting Type** | Through-Hole (Radial Leads) | | **Body Material** | High-temperature thermoplastic | | **Lead Material** | Tin-plated copper | --- ### ### Key Electronic Features 1. **Fast-Acting Response**: The "Fast-Acting" designation means the fuse is designed to open very quickly (usually within milliseconds) when an overcurrent condition occurs. This protects sensitive semiconductor components that cannot tolerate even brief surges. 2. **High DC Voltage Rating**: Unlike many standard subminiature fuses, the PCC-3-R features a high DC rating (up to 450V), making it suitable for modern power electronics and LED lighting drivers. 3. **Subminiature Form Factor**: The radial lead design allows the fuse to stand upright on a PCB, occupying minimal horizontal "real estate" compared to traditional glass tube fuses. 4. **Environmental Compliance**: The "-R" suffix indicates that the part is **RoHS compliant**, meaning it is manufactured without hazardous substances like lead or cadmium. --- ### ### Common Applications The PCC-3-R is typically found in the following electronic environments: * **Power Supplies**: Protecting the primary or secondary stages of AC-DC converters. * **LED Lighting**: Used in ballast circuits and high-voltage LED drivers. * **Consumer Electronics**: Found in chargers, adapters, and high-end audio equipment. * **Industrial Controls**: Protecting PLC (Programmable Logic Controller) outputs and sensor loops. --- ### ### Comparison with Similar Series | Series | Action Type | Common Use Case | | :--- | :--- | :--- | | **PCC Series** | Fast-Acting | Protection of sensitive ICs/Semiconductors. | | **PCW Series** | Time-Delay | Circuits with high inrush currents (motors/transformers). |