The **BK-HTB-66I-R** is a specialized electronic component primarily used in power distribution and protection. It is a **High-Current In-Line Fuse Holder** designed for automotive, marine, and industrial applications. Below is a detailed breakdown of its electronic specifications and characteristics. --- ### 1. General Specifications | Feature | Description | | :--- | :--- | | **Manufacturer** | Eaton (Bussmann Series) | | **Part Number** | BK-HTB-66I-R | | **Component Type** | Panel Mount Fuse Holder | | **Fuse Size Compatibility** | 1/4" x 1-1/4" (6.3mm x 32mm) - e.g., AGC, ABC, GBB series | | **Mounting Type** | Rear Panel Nut / Snap-in | | **Orientation** | Right Angle / In-line | --- ### 2. Electrical Characteristics The BK-HTB-66I-R is engineered to handle significant current loads safely. Its primary function is to provide a secure housing for a fuse while maintaining low electrical resistance. * **Current Rating:** Typically rated up to **20 Amps** (UL) or **16 Amps** (VDE/SEMKO). * **Voltage Rating:** Rated for **250 Volts AC**. * **Contact Resistance:** High-quality copper alloy terminals ensure minimal voltage drop across the holder. * **Dielectric Strength:** Designed to withstand high surges without insulation breakdown (usually tested at 1500V AC). --- ### 3. Physical & Material Composition The "parts" and materials used in the construction of this holder are selected for thermal stability and safety. 1. **Body Material:** High-temperature, flame-retardant thermoplastic (UL 94 V-0 rated). 2. **Knob/Cap:** Screws into the body to secure the fuse. It usually features a "finger-grip" or "screwdriver-slot" design for easy access. 3. **Terminals:** * **Style:** 1/4" Quick Connect / Solder terminals. * **Material:** Tin-plated brass for excellent conductivity and corrosion resistance. 4. **Seal/O-Ring:** Provides basic environmental protection against dust and moisture. --- ### 4. Part Number Breakdown (Suffix Meaning) The suffix **"-R"** in the part number indicates compliance with **RoHS** (Restriction of Hazardous Substances) standards. This means the part is manufactured without lead, mercury, cadmium, or other harmful materials. --- ### 5. Application Areas * **Industrial Equipment:** Control panels and power supplies. * **Automotive:** Heavy-duty accessory circuits. * **Audio/Video:** Protection for high-wattage amplifiers. * **Medical:** Laboratory and diagnostic equipment power inlets.