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The SMBJ14A-HF is a unidirectional Transient Voltage Suppressor (TVS) diode designed to protect sensitive electronic circuits from high-voltage transient events such as ESD (electrostatic discharge), lightning-induced surges, and switching spikes. It is part of the SMBJ series, commonly used for general-purpose surge protection in compact surface-mount designs.
It is housed in a DO-214AA (SMB) surface-mount package, making it suitable for automated PCB assembly and space-constrained applications.
Key Features
Working reverse standoff voltage (VRWM): 14 V
Breakdown voltage: ~15.6 V to 17.2 V
Clamping voltage: ~23.2 V at peak pulse current
Peak pulse power: 600 W (10/1000 µs waveform)
Peak pulse current: ~25.9 A
Unidirectional TVS diode (single channel)
Fast response to transient overvoltage events (nanosecond range)
Low leakage current (typically ~1 µA)
Operating temperature range: −55 °C to +150 °C
Surface-mount DO-214AA (SMB) package
RoHS compliant, HF (halogen-free) version (“-HF”)