STMicroelectronics 1-Element Bi-Directional TVS Diode Surface Mount DO-214 Package 56 V Reverse Stand-off Voltage SMTPA62

STMicroelectronics SMTPA62 is a 1-element bi-directional TVS (Transient Voltage Suppressor) diode designed to protect electronic circuits from transient voltage spikes. Packaged in a surface mount DO-214 form factor, this diode provides efficient crowbar protection by clamping high voltage transients in both directions, ensuring sensitive components are safeguarded against electrostatic discharge (ESD) and other transient events.

The device has a maximum reverse stand-off voltage of 56 V and a minimum breakdown voltage of 62 V, making it suitable for telecom and data communication line protection applications such as xDSL, T1/E1, and ISDN line cards. It features a peak pulse current capability of 50 A, enabling it to absorb high transient energy without damage, while maintaining a very low leakage current of 2 μA to minimize power consumption during normal operation. This diode operates reliably over a wide temperature range from -55°C to 150°C, accommodating harsh industrial conditions.

The compact DO-214 package measures 4.6 mm in length, 3.95 mm in width, and 2.45 mm in height, allowing efficient use of PCB real estate. The single-element design simplifies circuit integration while providing robust transient suppression in both voltage polarities. The SMTPA62 is part of the SMTPA series from STMicroelectronics and leverages Trisil™ technology optimized for telecom equipment protection.

Typical applications include transient voltage suppression in analogue and digital line cards for telecommunication systems, protecting delicate semiconductor components from voltage surges and spikes. It is well-suited for use in environments requiring low capacitance and low leakage currents to maintain signal integrity while providing reliable protection. Industrial uses extend to water treatment, manufacturing control systems, and other scenarios requiring robust transient protection.

The STMicroelectronics SMTPA62 combines proven reliability with compact design and excellent electrical characteristics, making it an essential component in transient voltage suppression across a range of electronic and industrial equipment.

This TVS diode features a 56 V maximum reverse stand-off voltage suitable for protecting sensitive electronics. It offers low leakage current of 2 microamps to ensure minimal power loss during operation. The diode is designed for bi-directional operation, providing crowbar protection in both voltage polarities.

It supports high peak pulse current up to 50 A for robust transient voltage clamping. The package size is compact with dimensions of 4.6 mm length, 3.95 mm width, and 2.45 mm height ideal for PCB space savings. The diode operates reliably within a temperature range of -55°C to 150°C for demanding industrial environments.

The single-element configuration integrates easily into analogue and digital line cards including xDSL, ISDN and T1/E1 systems. Its low capacitance and low leakage characteristics make it suitable for telecom equipment protection.

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