Check the listing for details. 4 Pcs .4A 400MA PTC 72V SELF RESET POLYFUSE RESETTABLE FUSE Ship USA. Color: Yellow, Condition: New. Listed at 5.88 USD. 4 Pcs .4A 400mA PTC 72V Self-Reset Polyfuse Resettable Fuse | Ship USA Protect your valuable electronics with these 4 pieces of .4A 400mA PTC 72V Self-Reset Polyfuses. These fuses offer a reliable and automatic way to safeguard circuits from overcurrent or short-circuit conditions. Ideal for a wide range of electronic applications, these resettable fuses automatically return to normal operation once the fault is removed, eliminating the need to replace them. Product Overview:Product Type: Polymer Resettable Fuse (PTC) with self-resetting functionality.Quantity: 4 pieces per package.Current Rating: 0.4A (400mA).Voltage Rating: 72V DC, suitable for low- to medium-voltage circuits.Resettable Fuse Type: Automatically returns to normal operation once the overcurrent condition is cleared. Technical Specifications:Operating Voltage: Rated for 72V DC, making it suitable for a variety of electronics projects.Current Rating: 400mA (0.4A) is ideal for low-current applications where protection from overcurrent is crucial.Trip Current: When the current exceeds the 0.4A limit, the fuse trips, switching to a high-resistance state to protect your circuit.Reset Time: Once the fault is cleared and the fuse cools, it returns to its low-resistance state, allowing current to flow normally again.Temperature Tolerance: These fuses are designed to operate in a wide temperature range, providing protection even in demanding environmental conditions. Applications:Overcurrent Protection: These PTC fuses are perfect for protecting sensitive electronic components from current surges.Battery Protection: Ensure the safety of lithium-ion, NiMH, or other rechargeable battery packs by integrating these fuses to prevent short circuits or overloads.Automotive Electronics: Ideal for automotive electrical systems to prevent damage from current surges or accidental shorts.Consumer Electronics: Commonly used in devices like televisions, audio equipment, and handheld electronics where protection against overcurrent is critical.Power Supplies and Chargers: Ensure the longevity of power adapters, USB chargers, and other power supplies by using these fuses to prevent damage from electrical overloads. Key Benefits:Automatic Reset: The self-resetting functionality ensures long-term use without the need for replacement. Once the fault is cleared, the fuse automatically resets, allowing your circuit to resume normal operation.Compact Design: Small, lightweight, and easy to integrate into tight spaces on your PCB or project.Durable & Reliable: Manufactured using high-quality materials to ensure consistent, long-lasting performance. Package Contents:4 x .4A 400mA PTC 72V Resettable Fuses.