### Analysis of the BK/PCC-1/2-R Electronic Component The **BK/PCC-1/2-R** is a high-performance subminiature fuse manufactured by **Eaton (formerly Bussmann)**. It belongs to the **PC-Tron®** series, which is specifically designed for high-density circuit board protection where space is limited and reliability is critical. --- ### Technical Specifications | Parameter | Specification | | :--- | :--- | | **Manufacturer** | Eaton (Bussmann Series) | | **Part Number** | BK/PCC-1/2-R | | **Current Rating** | 0.5 Amperes (1/2 Amp) | | **Voltage Rating (AC)** | 250 VAC | | **Voltage Rating (DC)** | 125 VDC (Typical for PC-Tron series) | | **Interrupting Rating** | 50A at 250VAC / 10,000A at 125VAC | | **Mounting Type** | Through-Hole (Radial Leads) | | **Response Time** | Fast-Acting | | **Case Material** | High-Temperature Plastic (UL 94V0) | --- ### Key Features and Construction 1. **Subminiature Profile**: The PC-Tron series is one of the smallest high-voltage fuses available, making it ideal for compact power supplies and industrial controllers. 2. **Radial Lead Design**: The "PC" designation indicates printed circuit board mounting. The leads are typically spaced at standard increments for automated insertion. 3. **Encapsulated Body**: The internal fuse element is protected by a rectangular, flame-retardant plastic housing, providing better environmental protection than traditional glass tube fuses. 4. **RoHS Compliant**: The "-R" suffix at the end of the part number indicates that the component is Lead-Free and RoHS compliant. 5. **Packaging Code**: The "BK/" prefix indicates a bulk packaging option (usually 100 pieces per bag). --- ### Typical Applications * **Telecommunications**: Protection for line cards and networking hardware. * **Power Supplies**: Used on the primary or secondary side of AC/DC converters. * **Industrial Controls**: Protecting PLC (Programmable Logic Controller) outputs and sensitive sensor circuits. * **Consumer Electronics**: High-density motherboards and compact power adapters. --- ### Cross-Reference / Part Breakdown | Segment | Meaning | | :--- | :--- | | **BK** | Bulk Packaging | | **PCC** | PC-Tron Series with 0.10" lead length | | **1/2** | 0.5 Amp Current Rating | | **R** | RoHS Compliant | ---