The SMF28A is a TVS diode from Littelfuse Inc.

• Series: It is part of the SMF series, which is designed for general-purpose circuit protection against transient voltage spikes.
• Type: This zener diode has a reverse standoff voltage of 28V and a breakdown voltage of 31.1V.
• Clamping Voltage: It has a clamping voltage of 45.4V @ peak pulse current.
• Power Rating: The SMF28A has a power rating of 200W and a peak pulse current of 4.4A.
• Mounting Type: It features a surface mount mounting type and a SOD-123F package.
• Application: The SMF28A is suitable for a wide range of applications requiring protection against voltage surges.
• Benefit: With its compact size and high power handling capability, the SMF28A provides reliable circuit protection in electronic devices.