TSM24ADBZRQ1

TSM24A-Q1 is a product in TI's surge protection device family. The TSM24A-Q1 can shunt up to 60 A of IEC 61000-4-5 fault current, protecting systems from high-power transients or lightning strikes. This device meets EMC requirements for general industrial signal lines and can withstand up to 2.5 kV IEC 61000-4-5 open-circuit voltage coupled through 42 Ω impedance. During a surge event, the TSM24A-Q1 clamps and keeps the system exposure voltage below a typical value of 38 V at IPP = 60 A. In addition, the TSM24A-Q1 features a compact leaded SOT-23 (DBZ) package, approximately 50% smaller than the industry-standard SMA package. The device has extremely low leakage current, with minimal impact on the protected line. For a bidirectional version of this device, see TSM24CA-Q1.

Applications

• Industrial sensors
• USB Type-C™ VBUS
• PLC I/O modules
• 24 V power lines, digital input or output lines
• Automotive hybrid and electric powertrains
• HEV/EV on-board chargers

Key features

• Robust surge protection per IEC61000-4-5 (8/20 µs), withstands 60 A surge
• Typical clamping voltage of 38 V at 60 A 8/20 µs surge current, protecting downstream components
• Unipolar design optimized for clamping performance on single-ended data lines and power rails
• 24 V working voltage for signal protection on 12 V systems
• Maximum leakage current: 75 nA
• Typical I/O capacitance: 54 pF
• Integrated IEC 61000-4-2 ESD protection, supports ±30 kV contact discharge and ±30 kV air-gap discharge
• Compact SOT-23 leaded package minimizes board space with AOI support