The DT04-12PA-LE03 is a 12-cavity DT series receptacle connector designed for environmentally sealed electrical connections in industrial and transportation applications. It features an A-key configuration with gray color, sealed flange design, and gasket (sold separately) with end cap for enhanced environmental protection. The connector accommodates 16 AWG contact size and includes a W12P wedge/TPA for secondary locking. The sealed flange construction provides superior sealing performance against moisture and contaminants, making it suitable for harsh automotive, marine, and industrial environments where reliable, protected connections are critical.