General-Purpose TVS Diode

SMBJ40CAActive

In modern electronic devices,transient voltage suppression diodes are key components for protecting sensitive circuits from voltage spikes and electrostatic discharge. SMBJ40CA provides a 40V precise protection barrier for the circuit. 600W high surge absorption capacity, bidirectional protection and nanosecond response speed can effectively resist transient threats such as lightning strikes and EFT.

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Electrical Parameters

Part Number SMBJ40CA

Package SMB

Polar Bi

Vrwm [Max] (V) 40

Vbr [Min] (V) 44.4

Vbr [Max] (V) 49.1

@ IT (mA)1

Vc@Ipp [Max] (V) 64.5

Ipp [Max] (A) 9.3

Ppp [Min] (W) 600

IR [Max] (uA)1

Tj (°C) -55~+150

Status Active

Product Features

Designed for transient voltage suppression, helping protect electronic circuits from ESD, EFT, and surge-induced overvoltage events High peak pulse power handling capability, suitable for absorbing transient energy under standardized surge conditions Fast clamping response, reducing peak voltage stress and improving overall system reliability Stable electrical performance, ensuring consistent protection behavior across repeated transient events SMB (DO-214AA) surface-mount package, enabling compact PCB designs and compatibility with automated assembly Wide operating temperature range with RoHS-compliant construction, supporting use in demanding and regulated application environments