The DTM04-12PA-E003 is a 12-cavity receptacle connector from the DTM series, featuring an A-key configuration in gray with an integrated end cap. This connector accommodates contact size 16 (20 A rating) and is designed for in-line, flange, or PCB mounting configurations in automotive and industrial environments. The connector utilizes a square thermoplastic housing with a lever for mating and includes TPA (Tertiary Position Assurance) to confirm contact alignment and retention. It is commonly used in industrial and commercial transportation systems where reliable, sealed electrical connections are required, offering environmental protection and secure contact engagement for power distribution and signal transmission applications.