The **HTS-3F-R/BN** refers to a high-quality, panel-mount **fuse holder** typically manufactured by companies like *Hasegawa* or similar industrial electronic component suppliers. It is designed to house and protect small glass or ceramic fuses within an electrical circuit. --- ### Technical Specifications The following table outlines the typical electrical and physical characteristics of this component series: | Parameter | Specification | | :--- | :--- | | **Component Type** | Panel Mount Fuse Holder | | **Compatible Fuse Size** | 5.2mm x 20mm (Standard small glass fuse) | | **Rated Voltage** | 250V AC | | **Rated Current** | 10A (Typical) | | **Insulation Resistance** | 100MΩ Min at 500V DC | | **Dielectric Strength** | 1500V AC for 1 minute | | **Material (Body)** | Phenolic Resin or PBT (UL94V-0) | | **Mounting Style** | Nut-fixed panel mount | --- ### Key Features and Design #### 1. Part Number Breakdown * **HTS:** Series designation (High-Temperature/Standard). * **3F:** Designates the specific body style and terminal type (often solder terminals). * **R:** Indicates a **Red** cap color (used for quick visual identification of fuse type or circuit safety). * **BN:** Refers to the mounting hardware or body finish (Black body with Nut). #### 2. Structural Components * **The Cap:** Features a finger-grip or screwdriver-slot design for easy fuse replacement. In this specific model, the "R" indicates the cap is red. * **The Body:** A threaded cylindrical housing that fits through a circular hole in a chassis. * **Terminals:** Usually two solder lugs at the rear or bottom for wire connections. --- ### Applications The HTS-3F-R/BN is widely used in industrial and consumer electronics where circuit protection is required: * **Power Supplies:** To protect against overcurrent on the AC input side. * **Test Equipment:** For safeguarding sensitive internal circuitry. * **Industrial Panels:** Used in control boxes where visible status (via color-coded caps) is necessary. * **Audio Equipment:** Protecting amplifiers and high-fidelity gear. ### Installation Safety > **Warning:** Always ensure the power is disconnected before removing the fuse cap. The rear terminals are exposed and may carry lethal voltages when the device is plugged in. ---