TSM24BDBZR

TSM24B is a member of TI's surge protection device family. The TSM24B reliably diverts up to 20 A of IEC 61000-4-5 fault current, protecting systems from high-power transients or lightning strike damage. The TSM24B is rated to withstand ESD strikes exceeding the highest level specified by the IEC 61000-4-2 international standard (±30 kV contact discharge, ±30 kV air discharge). During a surge event, the TSM24B clamps the system exposure voltage to a typical value below 33 V at IPP = 20 A. In addition, the TSM24B is available in a compact leaded SOT-23 (DBZ) package, approximately 50% smaller than the industry-standard SMA package. With extremely low leakage current, the device is designed to minimize impact on the protected line.

Applications

• Industrial sensors
• Controller area network (CAN)
• PLC I/O modules
• 24 V power lines or digital I/O lines
• Home appliances
• Medical devices
• Motor drivers

Key features

• Robust surge protection per IEC61000-4-5 (8/20 µs), withstands 20 A surge current
• Typical clamping voltage of 33 V at 20 A 8/20 µs surge current, protecting downstream components
• Unipolar design, optimized clamping performance for single-ended data lines and power rails
• 24 V working voltage for signal protection in 12 V systems
• Maximum leakage current: 75 nA
• Typical I/O capacitance: 24 pF
• Integrated IEC 61000-4-2 ESD protection, withstands ±30 kV contact discharge and ±30 kV air-gap discharge
• Compact SOT-23 leaded package minimizes board space with AOI support