Catalog
14-V bidirectional flat-clamp surge protection device
Key Features
• Functional safety-capableDocumentation available to aid functional safety system designProtection against 1 kV, 42 Ω IEC 61000-4-5 surge test for industrial signal linesBidirectional polarity enables protection against bipolar signaling or miswiring conditionsClamping voltage of 20.5 V at 30 A of 8/20 µs surge currentStandoff voltage: ±14 VSmall 3-mm × 3-mm SON footprintSurvives over 5,000 repetitive strikes of 30 A 8/20 µs surge current at 125°CRobust surge protectionIEC61000-4-5 (8/20 µs): 30 AIEC61643-321 (10/1000 µs): 6 ALow leakage current1.1 nA typical at 27°C260 nA maximum at 85°CLow capacitance: 68 pFIntegrated Level 4 IEC 61000-4-2 ESD protectionFunctional safety-capableDocumentation available to aid functional safety system designProtection against 1 kV, 42 Ω IEC 61000-4-5 surge test for industrial signal linesBidirectional polarity enables protection against bipolar signaling or miswiring conditionsClamping voltage of 20.5 V at 30 A of 8/20 µs surge currentStandoff voltage: ±14 VSmall 3-mm × 3-mm SON footprintSurvives over 5,000 repetitive strikes of 30 A 8/20 µs surge current at 125°CRobust surge protectionIEC61000-4-5 (8/20 µs): 30 AIEC61643-321 (10/1000 µs): 6 ALow leakage current1.1 nA typical at 27°C260 nA maximum at 85°CLow capacitance: 68 pFIntegrated Level 4 IEC 61000-4-2 ESD protection
Description
AI
The TVS1401 device shunts up to 30 A of IEC 61000-4-5 fault current to protect systems from high power transients or lightning strikes. The device survives the common industrial signal line EMC requirement of 1 kV IEC 61000-4-5 open circuit voltage coupled through a 42-Ω impedance. The TVS1401 uses a feedback mechanism to ensure precise flat clamping during a fault, keeping system exposure lower than traditional TVS diodes. The tight voltage regulation allows designers to confidently select system components with a lower voltage tolerance, lowering system costs and complexity without sacrificing robustness. The TVS1401 has a ±14 V operating range to enable operation in systems that require protection against reverse wiring conditions.
In addition, the TVS1401 is available in a small SON footprint which is designed for space constrained applications, offering a significant size reduction compared to standard SMA and SMB packages. Low device leakage and capacitance ensure a minimal effect on the protected line. To ensure robust protection over the lifetime of the product, TI tests the TVS1401 against 5,000 repetitive surge strikes at 125°C with no shift in device performance.
The TVS1401 is part of TI’s Flat-Clamp family of surge devices. For a deeper look at the Flat-Clamp family, refer toFlat-Clamp Surge Protection Technology for Efficient System Protectionwhite paper.
The TVS1401 device shunts up to 30 A of IEC 61000-4-5 fault current to protect systems from high power transients or lightning strikes. The device survives the common industrial signal line EMC requirement of 1 kV IEC 61000-4-5 open circuit voltage coupled through a 42-Ω impedance. The TVS1401 uses a feedback mechanism to ensure precise flat clamping during a fault, keeping system exposure lower than traditional TVS diodes. The tight voltage regulation allows designers to confidently select system components with a lower voltage tolerance, lowering system costs and complexity without sacrificing robustness. The TVS1401 has a ±14 V operating range to enable operation in systems that require protection against reverse wiring conditions.
In addition, the TVS1401 is available in a small SON footprint which is designed for space constrained applications, offering a significant size reduction compared to standard SMA and SMB packages. Low device leakage and capacitance ensure a minimal effect on the protected line. To ensure robust protection over the lifetime of the product, TI tests the TVS1401 against 5,000 repetitive surge strikes at 125°C with no shift in device performance.
The TVS1401 is part of TI’s Flat-Clamp family of surge devices. For a deeper look at the Flat-Clamp family, refer toFlat-Clamp Surge Protection Technology for Efficient System Protectionwhite paper.
