What is a Rectangular Industrial Connector, 12 pin, Contact Termination

 DT Series 3 Position Dual Row Female Socket Free Hanging Plug Housing

https://www.futureelectronics.com/p/interconnect--rectangular-connectors/dt06-3s-p006-te-connectivity-8078665

What is a PCB Header, socket mount wire, circuit wire, PCB header plug

 DT PLUG ASM , Housing for female terminals, 3 position

https://www.futureelectronics.com/p/interconnect--connectors-rectangular-plastic-industrial/dt06-3s-e008-te-connectivity-4079910

What is an Interconnect, wire connectors, cable connectors, Wire connectors

 3 Position Rectangular Housing Connector Plug Gray

https://www.futureelectronics.com/p/interconnect--connectors-rectangular-plastic-industrial/dt06-3s-ce01-te-connectivity-2113732

Header plugs, 4 pin connector, Socket Plug connectors, Automotive Connectors

 Automotive Connectors 3P DT PLUG ASM, E SEAL

https://www.futureelectronics.com/p/interconnect--pin-and-socket-connectors--header-plug-wire-mount/dt06-3s-c015-te-connectivity-7109248

Rectangular power connector, rectangular connector housing, Plug Housing

 DT Series 3 Position Dual Row Female Socket Free Hanging Plug Housing

https://www.futureelectronics.com/p/interconnect--rectangular-connectors/dt06-3s-te-connectivity-1076070

High Capacity Cylindrical Cell Battery, battery-powered wireless

 TL Series Lithium D Cell 3.6 V 19.0 Ah High Capacity Cylindrical Cell Battery

https://www.futureelectronics.com/p/electromechanical--batteries/tl-5930-s-tadiran-batteries-3831500

7400-series digital logic integrated circuit, transistor logic (TTL) logic chips

 74AVC Series 0.8 - 3.6 V 3-State Dual Supply Translating Transceiver - SC-88

https://www.futureelectronics.com/p/semiconductors--logic--74-series--alvch/74avc1t45gw-125-nexperia-7037619