TVS3301DRBR Description

The TVS3301DRBR device shields systems against high-power transients or lightning strikes by shunting up to 27 A of IEC 61000-4-5 fault current. The device satisfies the 1-kV IEC 61000-4-5 open circuit voltage coupled through a 42-Ω impedance requirement for standard industrial signal line EMC. In contrast to conventional TVS diodes, the TVS3301DRBR employs a feedback mechanism to ensure exact flat clamping during a malfunction and reduce system exposure. In order to reduce system costs and complexity without compromising robustness, designers can securely choose system components with a lower voltage tolerance thanks to tight voltage regulation. The TVS3301DRBR may operate in systems that need protection against reverse wiring circumstances thanks to its operating range of ±33-V.

Additionally, the TVS3301DRBR is offered in a compact SON footprint for applications with limited space, which offers a substantial size reduction over the conventional SMA and SMB packages. Low device capacitance and leakage guarantee minimal impact on the protected line. With no change in device performance, TI tests the TVS3301DRBR against 5000 repeated surge strikes at 125°C to assure strong protection over the course of the product.

The Flat-Clamp line of surge protectors from TI includes the TVS3301DRBR.

TVS3301DRBR Features

• Survives Over 5,000 Repetitive Strikes of 25-A 8/20-µs Surge Current

• Robust Surge Protection

– IEC61000-4-5 (8/20 µs): 27 A

– IEC61643-321 (10/1000 µs): 3 A

• Low Leakage Current

– 2.5-nA Typical at 27°C

– 450-nA Maximum at 85°C

• Low Capacitance: 54 pF

• Integrated Level 4 IEC 61000-4-2 ESD Protection

• Protection Against 1-kV, 42-Ω IEC 61000-4-5 Surge Test for Industrial Signal Lines

• Bidirectional Polarity Enables Protection Against Bipolar Signaling or Miswiring Conditions

• Clamping Voltage of 40 V at 27-A of 8/20-µs Surge Current

• Standoff Voltage: ±33 V

• Small 3 mm x 3 mm SON Footprint

TVS3301DRBR Applications

• Appliances

• Medical Equipment

• Building Automation

• Industrial Sensor I/O

• PLC I/O Modules

• Analog Inputs