The **3AG160-R** is a specific model of a **Miniature Cartridge Glass Fuse**. It is widely used in power supplies, consumer electronics, and industrial equipment to protect circuits from overcurrent and short circuits. --- ### 1. Technical Specifications The following table outlines the primary electrical and physical characteristics of the 3AG160-R fuse: | Feature | Specification | | :--- | :--- | | **Part Number** | 3AG160-R | | **Fuse Type** | Fast-Acting (Fast Blow) | | **Current Rating** | 160mA (0.16 Amps) | | **Voltage Rating** | 250V AC | | **Body Material** | Glass | | **Size / Dimension** | 6.3mm x 32mm (1/4" x 1-1/4") | | **RoHS Compliant** | Yes (indicated by the "-R" suffix) | | **Interrupt Rating** | 35A @ 250V AC / 10,000A @ 125V AC | --- ### 2. Key Components and Design The 3AG160-R consists of four main parts: 1. **Glass Tube:** Provides a clear view of the fuse element. This allows for easy visual inspection to see if the fuse has "blown." 2. **Fuse Element:** A thin metallic wire or strip designed to melt when the current exceeds 160mA for a specific duration. 3. **End Caps:** Nickel-plated brass caps located at both ends to provide electrical contact points. 4. **Extinguishing Medium:** In this specific glass model, it is usually air-filled, as it is a low-amperage fast-acting fuse. --- ### 3. Operational Characteristics * **Fast-Acting:** Unlike "Slow-Blow" fuses, the 3AG160-R reacts almost instantly to surges. It is designed to protect sensitive components that cannot withstand even brief periods of overcurrent. * **Safety Standards:** Typically carries certifications such as UL (Underwriters Laboratories) and CSA (Canadian Standards Association). * **Resistance:** At 160mA, the internal resistance is relatively high compared to higher-amperage fuses, which is typical for low-current protection. --- ### 4. Common Applications Due to its low amperage and fast response time, it is commonly found in: * **Multimeters:** Protecting the internal circuitry during current measurement. * **Audio Equipment:** Protecting delicate pre-amplifier stages. * **Instrumentation:** Scientific and medical devices where precise current regulation is required. * **Power Strips:** Secondary protection for small electronic loads. ---