TVS clamp for 6.63 V rails
The 1.5KE8.2C-E3/54: It clamps transients at 12.5 V maximum while conducting 120 A peak pulse current. The Zener-type construction provides sharp breakdown at 7.38 V minimum, making it suitable for protecting 5 V or 6.6 V DC rails in general-purpose industrial and telecom equipment.
Package and thermal envelope
The through-hole mounting simplifies hand-assembly or rework in legacy designs; the axial body handles repeated solder cycles without stress to the die attach.
Bidirectional protection in one device
This saves board space and reduces parts count on bipolar signal lines or AC-coupled data interfaces.
Lifecycle reality — obsolete, sourced on request
Vishay lists the 1.5KE8.2C-/54 as obsolete.