What are the key features of the 1210L150/16WR?
The 1210L150/16WR is a polymeric positive temperature coefficient (PTC) resettable fuse designed for surface‑mount applications. It has a 16 V rating and a hold current of 1.5 A, with a compact 1210 (3225 metric) concave package. When excessive current flows through the device, its resistance rises to limit current and protect the circuit. After the fault is cleared and the device cools down, it automatically returns to its low‑resistance state without needing replacement.
What is this part used for?
This resettable fuse is widely used for overcurrent protection in consumer electronics, industrial control systems, communication devices, power supplies, and battery‑powered equipment. It helps guard USB ports, power inputs, signal lines, and other sensitive circuits against short circuits, current surges, and overload conditions, improving system safety and reliability.
Are there alternative parts?
Yes. Similar polymer PTC resettable fuses with comparable voltage and current ratings are available from Littelfuse (e.g., 1206L series) and other manufacturers such as Bourns (MF‑R series) or TE Connectivity (RxE series). When choosing an alternative, ensure the part matches in hold/trip current, voltage rating, package size, and operating temperature range to maintain equivalent protection performance in your design.
