A103J1ZQ004 is a Gemini A Series rocker switch manufactured by TE Connectivity (ALCOSWITCH brand) designed for general-purpose switching applications. The switch features a rated capacity of 2A at 250VAC or 5A at 120VAC with an epoxy seal for environmental protection. The case is constructed from DAP (30–40% glass-filled) material with UL94 V–0 rating, while the frame is made of 304 stainless steel for durability. The terminals and contacts are fabricated from C194 copper with gold-over-nickel finish (B terminals), gold-over-silver finish (G terminals), or silver finish (Q terminals) depending on the configuration. The rocker cap is made from nylon with UL94 V–1 rating, and the actuator is phenolic with the same flame rating. This switch is suitable for consumer appliances, industrial control panels, and equipment requiring reliable on-off switching with environmental sealing.