STMicroelectronics 1-Element Bi-Directional TVS Diode Surface Mount DO-214 Package 400W SMAJ70CA-TR

STMicroelectronics SMAJ70CA-TR is a single-element, bi-directional Transient Voltage Suppressor (TVS) diode designed for surface mount applications in sensitive electronic circuits requiring protection against voltage transients and surges.

This device features a peak pulse power dissipation rating of 400 watts, enabling it to clamp and absorb high energy surges effectively. It employs a DO-214 package type, which offers compactness for space-constrained designs while supporting reliable mounting on printed circuit boards.

The SMAJ70CA-TR exhibits a minimum breakdown voltage (Vbr) of 77.8 volts and a maximum reverse standoff voltage (Vwm) of 70 volts, ensuring operation within safe voltage thresholds. The clamping voltage (Vc) of 146 volts during transient events helps protect downstream components by limiting voltage spikes.

The device maintains functional integrity in extreme thermal conditions, with a minimum operating temperature of -55°C and a maximum of 150°C. With a maximum peak pulse current of 16 amperes, it is suitable for applications encountering high transient currents. Additionally, it features a low maximum reverse leakage current of 1 microampere, minimizing power loss during normal operation.

With its single-element diode configuration and bi-directional protection capability, the SMAJ70CA-TR is ideal for safeguarding power supplies, data lines, and other sensitive electronic parts in industrial, commercial, and consumer electronics equipment.

Single diode configuration offering bi-directional protection. Peak pulse power dissipation of 400 watts supports high surge absorption. Minimum breakdown voltage of 77.8 V and max reverse standoff voltage of 70 V. Clamping voltage of 146 V ensures transient voltage suppression.

Compact DO-214 surface mount package (4.6 mm x 2.9 mm x 2.45 mm). Temperature range: -55°C to 150°C for reliable operation in harsh conditions. Maximum peak pulse current of 16 A for robust surge handling. Maximum reverse leakage current of 1 μA for energy efficiency.

Typical applications include industrial electronics, power supply units, communication devices, and automotive electronics requiring transient voltage protection.

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