NUP3125WTT1G

The NUP3125WTT1G from On Semiconductor is a dual line CAN bus protector engineered to provide robust protection for CAN transceivers in 24V automotive and industrial networks. This device offers bidirectional protection for each data line, ensuring system reliability and compliance with stringent EMI requirements.

Key electrical characteristics include a peak power dissipation of 120W per line for an 8/20 μs waveform, a reverse working voltage of up to 32V, and a low reverse leakage current of less than 100 nA. The device exhibits excellent ESD protection, meeting IEC 61000-4-2 Level 4 standards for contact and air discharge. It also withstands EFT up to 50A and lighting surges up to 2.0A (8/20 μs).

Designed for ease of integration, the NUP3125WTT1G is housed in a compact SC-70 (SOT-323) surface-mount package. Its low capacitance and diode capacitance matching make it suitable for high-speed CAN applications. The device is Pb-free, halogen-free, and RoHS compliant, aligning with modern environmental standards.

Applications include automotive networks such as CAN/CAN-FD, low and high-speed CAN, and fault-tolerant CAN systems, as well as industrial control networks like Smart Distribution Systems (SDS) and DeviceNet.