The **F2VS-160-R** is a specific electronic component, typically categorized as a **Surface Mount Device (SMD) PPTC (Polymeric Positive Temperature Coefficient) Resettable Fuse**. These parts are widely used for overcurrent protection in compact electronic circuits. --- ### 1. Key Technical Specifications The model number "160" usually refers to the holding current, while the "R" often signifies RoHS compliance or a specific packaging style (Reel). | Parameter | Specification (Typical) | | :--- | :--- | | **Part Type** | Resettable Fuse (PPTC) | | **Hold Current ($I_{hold}$)** | 1.60 Amps | | **Trip Current ($I_{trip}$)** | 3.20 Amps (approx.) | | **Max Voltage ($V_{max}$)** | 6V - 16V (varies by manufacturer) | | **Max Current ($I_{max}$)** | 40A - 100A | | **Package Size** | 1812 or 1206 (SMD) | | **Operating Temp** | -40°C to +85°C | --- ### 2. How it Functions The F2VS-160-R acts like a "smart" resistor: 1. **Normal State:** In standard operation, the device has very low resistance, allowing current to flow freely to the load. 2. **Fault State:** If a short circuit or overcurrent occurs, the internal polymer heats up, causing its resistance to increase exponentially. This effectively "opens" the circuit. 3. **Reset State:** Once the power is removed and the fault is cleared, the device cools down and returns to a low-resistance state automatically. --- ### 3. Common Applications Due to its 1.6A hold current and compact surface-mount design, this part is frequently found in: * **USB Ports:** Protection for USB 2.0/3.0 hubs. * **Battery Packs:** Protecting Li-ion cells from external shorts. * **Motherboards:** Power rail protection for peripherals. * **Automotive Electronics:** Low-voltage sensors and infotainment modules. --- ### 4. Part Number Breakdown While nomenclature varies slightly by brand (e.g., Bourns, Littelfuse, or Raychem), the pattern is generally: * **F2V:** Series identifier (often indicating voltage rating or material type). * **S:** Surface Mount technology. * **160:** Hold Current (1.60 Amps). * **R:** Tape & Reel packaging / RoHS Compliant.