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1. Description
The SZ/NUP2105L has been designed to protect the CAN transceiver in high−speed and fault tolerant networks from ESD and other harmful transient voltage events. This device provides bidirectional protection for each data line with a single compact SOT−23 package, giving the system designer a low cost option for improving system reliability and meeting stringent EMI requirements.
2. Features
1. 350 W Peak Power Dissipation per Line (8/20 sec Waveform)
2. Low Reverse Leakage Current (< 100 nA)
3. Low Capacitance High−Speed CAN Data Rates
4. IEC Compatibility: − IEC 61000−4−2 (ESD): Level 4, 30 kV
− IEC 61000−4−4 (EFT): 40 A – 5/50 ns
− IEC 61000−4−5 (Lighting) 8.0 A (8/20 s)
5. ISO 7637−2 Pulse 2a: Repetitive Load Switch Disconnect, 9.5 A
6. ISO 7637−3 Pulse 3a,b: Repetitive Load Switching Fast Transients,50 A
7. Flammability Rating UL 94 V−0
8. SZ Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q101 Qualified and PPAP Capable
9. These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant
Applications
1. Industrial Control Networks
2. Smart Distribution Systems (SDS®)
3. DeviceNet™
4. Automotive Networks
5. Low and High−Speed CAN
6. Fault Tolerant CAN
Background
The Controller Area Network (CAN) is a serial communication protocol designed for providing reliable high speed data transmission in harsh environments. surge protection diodes provide a low cost solution to conducted and radiated Electromagnetic Interference (EMI) and Electrostatic Discharge (ESD) noise problems. The noise immunity level and reliability of CAN transceivers can be easily increased by adding external surge protection diodes to prevent transient voltage failures.
The NUP2105L provides a surge protection solution for CAN data communication lines. The NUP2105L is a dual bidirectional surge protection device in a compact SOT−23 package. This device is based on Zener technology that optimizes the active area of a PN junction to provide robust protection against transient EMI surge voltage and
ESD. The NUP2105L has been tested to EMI and ESD levels that exceed the specifications of popular high speed
