Bidirectional TVS in a SQ-MELF package
It provides a single bidirectional channel, clamping at 25.1 V maximum with a 59.8 A peak pulse current capacity. The reverse standoff voltage is 13.7 V, with a minimum breakdown of 17.1 V. Housed in a surface-mount SQ-MELF (C) package, the 1N6148AUS is rated for operation from -55°C to 175°C junction temperature, covering military and industrial thermal environments.
Voltage ratings and clamping margin
The 13.7V standoff and 17.1V breakdown give a 3.4V window — tight enough to avoid nuisance triggering on a 12V bus with 5% regulation, but wide enough to accommodate transient overvoltage before the clamping event. Maximum clamping at 25.1 V at 59.8 A peak pulse current defines the voltage the protected circuit must survive.
Active production and supply posture
The SQ-MELF package is a standard surface-mount footprint; the part is. Sourced per RFQ against the BOM quantity — pricing and lead time confirmed at quote time.