Overview
The SZNUP2105LT3G is a 27 V ESD protection diode designed by onsemi to protect CAN transceivers in high-speed and fault-tolerant networks from ESD and other harmful transient voltage events. This device provides bidirectional protection for each data line within a single compact SOT-23 package, offering a low-cost solution for enhancing system reliability and meeting stringent EMI requirements.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Power Dissipation per Line (8/20 μs Waveform) | 350 | W |
| Reverse Working Voltage (VRWM) | 24 | V |
| Breakdown Voltage (VBR) at IT = 1 mA | 26.2 - 32 | V |
| Reverse Leakage Current (IR) at VRWM = 24 V | < 100 | nA |
| Clamping Voltage (VC) at IPP = 5 A (8/20 μs Waveform) | < 40 | V |
| Maximum Peak Pulse Current (IPP) 8/20 μs Waveform | < 8.0 | A |
| Capacitance (CJ) at VR = 0 V, f = 1 MHz | < 30 | pF |
| Operating Junction Temperature Range | -55 to 150 | °C |
| Storage Temperature Range | -55 to 150 | °C |
| Lead Solder Temperature (10 s) | 260 | °C |
| ESD Human Body Model (HBM) | 16 kV | |
| ESD Machine Model (MM) | 400 V | |
| IEC 61000-4-2 (ESD) Specification | Level 4, 30 kV | |
| IEC 61000-4-4 (EFT) Specification | 40 A – 5/50 ns | |
| IEC 61000-4-5 (Lightning) Specification | 8.0 A (8/20 μs) | |
| ISO 7637-2 Pulse 2a Specification | 9.5 A | |
| ISO 7637-3 Pulse 3a,b Specification | 50 A | |
| Flammability Rating UL 94 | V-0 |
Key Features
- Low capacitance for high-speed CAN data rates
- Bidirectional protection for each data line in a single SOT-23 package
- Low reverse leakage current (< 100 nA)
- High peak power dissipation per line (350 W, 8/20 μs waveform)
- Compliance with IEC 61000-4-2, IEC 61000-4-4, and IEC 61000-4-5 standards
- Compliance with ISO 7637-2 and ISO 7637-3 standards
- AEC-Q101 qualified and PPAP capable for automotive applications
- Pb-free, halogen-free/BFR-free, and RoHS compliant
Applications
- Industrial Control Networks: Smart Distribution Systems (SDS®), DeviceNet™
- Automotive Networks: Low and High-Speed CAN, Fault Tolerant CAN, Automotive IVN (In Vehicle Networking)
- Other applications requiring robust ESD protection in harsh environments
Q & A
- What is the primary function of the SZNUP2105LT3G?
The primary function is to protect CAN transceivers from ESD and other transient voltage events. - What package type does the SZNUP2105LT3G come in?
The device comes in a compact SOT-23 package. - What is the peak power dissipation per line for the SZNUP2105LT3G?
The peak power dissipation per line is 350 W (8/20 μs waveform). - Is the SZNUP2105LT3G compliant with automotive standards?
Yes, it is AEC-Q101 qualified and PPAP capable. - What are the operating and storage temperature ranges for the SZNUP2105LT3G?
The operating and storage temperature ranges are -55 to 150 °C. - Is the SZNUP2105LT3G RoHS compliant?
Yes, it is Pb-free, halogen-free/BFR-free, and RoHS compliant. - What are the key ESD and EFT specifications for the SZNUP2105LT3G?
It complies with IEC 61000-4-2 (Level 4, 30 kV), IEC 61000-4-4 (40 A – 5/50 ns), and IEC 61000-4-5 (8.0 A, 8/20 μs) specifications. - What are the typical applications for the SZNUP2105LT3G?
It is used in industrial control networks, automotive networks, and other applications requiring robust ESD protection. - What is the reverse leakage current of the SZNUP2105LT3G?
The reverse leakage current is less than 100 nA. - What is the flammability rating of the SZNUP2105LT3G?
The flammability rating is UL 94 V-0.
