Automotive Connectors – Mouser Ireland

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AT Protective Backshell Boots

Amphenol Sine Systems AT Series™ Boots provide an optional protective backshell covering for harsh environmental and industrial applications in a -28°C to +100°C temperature range. These 2- to 12-position boots are designed for use with AT, ATM, and ATP Series™ connectors that do not include an endcap or shrink boot strain relief. Amphenol Sine Systems A Series™ Boots are made of high-quality plastisol in three color options: yellow, black, and gray. Typical applications include heavy equipment, construction, transportation, off-road mining, industrial, railway, automotive, and more.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Accessory Type	Number of Positions	Gender	Color	Series	Packaging
Automotive Connectors Boot (Backshell) 3-way Plug, Yellow AT3S-BT-YW Amphenol SINE Systems 1: €1.26 121In Stock	Mfr. Part No. AT3S-BT-YW Mouser Part No 654-AT3S-BT-YW	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 3-way Plug, Yellow Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	121In Stock	€1.26 €1.11 €1.06 €0.989 View €0.79 €0.73 €0.688 €0.682 €0.679	Min.: 1 Mult.: 1	Accessories	Backshell	3 Position	Plug (Male)	Yellow		Bulk
Automotive Connectors Boot (Backshell) 12-way Plug, Grey AT12S-BT Amphenol SINE Systems 1: €1.14 2,062In Stock	Mfr. Part No. AT12S-BT Mouser Part No 654-AT12S-BT	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 12-way Plug, Grey Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	2,062In Stock	€1.14 €1.01 €0.946 €0.848 View €0.822 €0.782 €0.734 €0.678 €0.67	Min.: 1 Mult.: 1	Accessories	Backshell	12 Position	Plug (Male)	Gray	AT	Bulk
Automotive Connectors Boot (Backshell) 12-way Plug, Black AT12S-BT-BK Amphenol SINE Systems 1: €0.998 2,948In Stock	Mfr. Part No. AT12S-BT-BK Mouser Part No 654-AT12S-BT-BK	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 12-way Plug, Black Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	2,948In Stock	€0.998 €0.886 €0.829 €0.676 View €0.641 €0.63 €0.578 €0.547 €0.543	Min.: 1 Mult.: 1	Accessories	Backshell	12 Position	Plug (Male)	Black	AT	Bulk
Automotive Connectors Boot (Backshell) 2-way Plug, Black AT2S-BT-BK Amphenol SINE Systems 1: €0.731 3,723In Stock	Mfr. Part No. AT2S-BT-BK Mouser Part No 654-AT2S-BT-BK	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 2-way Plug, Black Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	3,723In Stock	€0.731 €0.587 €0.547 €0.517 View €0.464 €0.445	Min.: 1 Mult.: 1	Accessories	Backshell	2 Position	Plug (Male)	Black	AT	Bulk
Automotive Connectors Boot (Backshell) 12way Receptacle Gry AT12P-BT Amphenol SINE Systems 1: €1.31 422In Stock 400On Order	Mfr. Part No. AT12P-BT Mouser Part No 654-AT12P-BT	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 12way Receptacle Gry Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	422In Stock 400On Order	€1.31 €1.14 €1.01 €0.894 View €0.696 €0.637 €0.636	Min.: 1 Mult.: 1	Accessories	Backshell	12 Position	Receptacle (Female)	Gray		Bulk
Automotive Connectors Boot (Backshell) 12way Receptacle Blk AT12P-BT-BK Amphenol SINE Systems 1: €1.08 461In Stock 2,800On Order	Mfr. Part No. AT12P-BT-BK Mouser Part No 654-AT12P-BT-BK	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 12way Receptacle Blk Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	461In Stock 2,800On Order On Order Ship Dates Mfr. No: AT12P-BT-BK Stock: 461 Can Dispatch Immediately On Order: 1,200 Expected 10/12/2026 1,600 Expected 05/02/2027 Factory Lead Time: 18 Weeks	€1.08 €0.972 €0.815 €0.746 View €0.742 €0.648 €0.602	Min.: 1 Mult.: 1	Accessories	Backshell	12 Position	Receptacle (Female)	Black	AT	Bulk
Automotive Connectors Boot (Backshell) 12way Rcpt Yellow AT12P-BT-YW Amphenol SINE Systems 1: €0.998 46In Stock	Mfr. Part No. AT12P-BT-YW Mouser Part No 654-AT12P-BT-YW	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 12way Rcpt Yellow Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	46In Stock	€0.998 €0.929 €0.729 €0.665 View €0.661 €0.609 €0.577 €0.56	Min.: 1 Mult.: 1	Accessories	Backshell	12 Position	Receptacle (Female)	Yellow		Bulk
Automotive Connectors Boot (Backshell) 12-way Plug, Yellow AT12S-BT-YW Amphenol SINE Systems 1: €1.20 145In Stock	Mfr. Part No. AT12S-BT-YW Mouser Part No 654-AT12S-BT-YW	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 12-way Plug, Yellow Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	145In Stock	€1.20 €1.02 €0.903 €0.824 View €0.783 €0.722 €0.667 €0.633 €0.618	Min.: 1 Mult.: 1	Accessories	Backshell	12 Position	Plug (Male)	Yellow		Bulk
Automotive Connectors Boot (Backshell) 2way Receptacle Grey AT2P-BT Amphenol SINE Systems 1: €0.886 614In Stock 900Expected 01/12/2026	Mfr. Part No. AT2P-BT Mouser Part No 654-AT2P-BT	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 2way Receptacle Grey Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	614In Stock 900Expected 01/12/2026	€0.886 €0.796 €0.764 €0.715 View €0.65 €0.584 €0.497 €0.464 €0.458	Min.: 1 Mult.: 1	Accessories	Backshell	2 Position	Receptacle (Female)	Gray		Bulk
Automotive Connectors Boot (Backshell) 2way Rcpt Yellow AT2P-BT-YW Amphenol SINE Systems 1: €1.23 258In Stock	Mfr. Part No. AT2P-BT-YW Mouser Part No 654-AT2P-BT-YW	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 2way Rcpt Yellow Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	258In Stock	€1.23 €1.06 €0.946 €0.903 View €0.894 €0.759 €0.661 €0.628 €0.619	Min.: 1 Mult.: 1	Accessories	Backshell	2 Position	Receptacle (Female)	Yellow		Bulk
Automotive Connectors Boot (Backshell) 2-way Plug, Grey AT2S-BT Amphenol SINE Systems 1: €1.08 635In Stock 2,700On Order	Mfr. Part No. AT2S-BT Mouser Part No 654-AT2S-BT	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 2-way Plug, Grey Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	635In Stock 2,700On Order On Order Ship Dates Mfr. No: AT2S-BT Stock: 635 Can Dispatch Immediately On Order: 1,500 Expected 13/11/2026 1,200 Expected 08/03/2027 Factory Lead Time: 18 Weeks	€1.08 €0.912 €0.823 €0.784 View €0.726 €0.705 €0.592 €0.56 €0.544	Min.: 1 Mult.: 1	Accessories	Backshell	2 Position	Plug (Male)	Gray		Bulk
Automotive Connectors Boot (Backshell) 2-way Plug, Yellow AT2S-BT-YW Amphenol SINE Systems 1: €1.32 78In Stock	Mfr. Part No. AT2S-BT-YW Mouser Part No 654-AT2S-BT-YW	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 2-way Plug, Yellow Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	78In Stock	€1.32 €1.13 €1.01 €0.963 View €0.886 €0.766 €0.681 €0.65	Min.: 1 Mult.: 1	Accessories	Backshell	2 Position	Plug (Male)	Yellow		Bulk
Automotive Connectors Boot (Backshell) 3way Receptacle Grey AT3P-BT Amphenol SINE Systems 1: €0.886 1,430In Stock	Mfr. Part No. AT3P-BT Mouser Part No 654-AT3P-BT	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 3way Receptacle Grey Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	1,430In Stock	€0.886 €0.753 €0.673 €0.64 View €0.594 €0.592 €0.55	Min.: 1 Mult.: 1	Accessories	Backshell	3 Position	Receptacle (Female)	Gray		Bulk
Automotive Connectors Boot (Backshell) 3way Rcpt Yellow AT3P-BT-YW Amphenol SINE Systems 1: €1.26 63In Stock	Mfr. Part No. AT3P-BT-YW Mouser Part No 654-AT3P-BT-YW	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 3way Rcpt Yellow Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	63In Stock	€1.26 €1.09 €0.929 €0.886 View €0.825 €0.805 €0.662 €0.633 €0.616	Min.: 1 Mult.: 1	Accessories	Backshell	3 Position	Receptacle (Female)	Yellow		Bulk
Automotive Connectors Boot (Backshell) 3-way Plug, Black AT3S-BT-BK Amphenol SINE Systems 1: €1.02 341In Stock 600Expected 10/12/2026	Mfr. Part No. AT3S-BT-BK Mouser Part No 654-AT3S-BT-BK	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 3-way Plug, Black Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	341In Stock 600Expected 10/12/2026	€1.02 €0.877 €0.779 €0.742 View €0.653 €0.607 €0.572 €0.57	Min.: 1 Mult.: 1	Accessories	Backshell	3 Position	Plug (Male)	Black		Bulk
Automotive Connectors Boot (Backshell) 4way Receptacle Grey AT4P-BT Amphenol SINE Systems 1: €0.86 237In Stock 600Expected 10/12/2026	Mfr. Part No. AT4P-BT Mouser Part No 654-AT4P-BT	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 4way Receptacle Grey Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	237In Stock 600Expected 10/12/2026	€0.86 €0.733 €0.654 €0.623 View €0.548 €0.524	Min.: 1 Mult.: 1	Accessories	Backshell	4 Position	Receptacle (Female)	Gray		Bulk
Automotive Connectors Boot (Backshell) 4way Receptacle Blk AT4P-BT-BK Amphenol SINE Systems 1: €0.826 1,294In Stock 600On Order	Mfr. Part No. AT4P-BT-BK Mouser Part No 654-AT4P-BT-BK	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 4way Receptacle Blk Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	1,294In Stock 600On Order	€0.826 €0.709 €0.642 €0.611 View €0.565 €0.52 €0.474 €0.454	Min.: 1 Mult.: 1	Accessories	Backshell	4 Position	Receptacle (Female)	Black		Bulk
Automotive Connectors Boot (Backshell) 4way Rcpt Yellow AT4P-BT-YW Amphenol SINE Systems 1: €0.86 56In Stock	Mfr. Part No. AT4P-BT-YW Mouser Part No 654-AT4P-BT-YW	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 4way Rcpt Yellow Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	56In Stock	€0.86 €0.733 €0.642 €0.614 View €0.574 €0.544 €0.48 €0.451 €0.444	Min.: 1 Mult.: 1	Accessories	Backshell	4 Position	Receptacle (Female)	Yellow		Bulk
Automotive Connectors Boot (Backshell) 4-way Plug, Grey AT4S-BT Amphenol SINE Systems 1: €1.26 785In Stock 600Expected 17/12/2026	Mfr. Part No. AT4S-BT Mouser Part No 654-AT4S-BT	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 4-way Plug, Grey Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	785In Stock 600Expected 17/12/2026	€1.26 €1.07 €0.998 €0.955 View €0.903 €0.853 €0.63 €0.599 €0.594	Min.: 1 Mult.: 1	Accessories	Backshell	4 Position	Plug (Male)	Gray	AT	Bulk
Automotive Connectors Boot (Backshell) 4-way Plug, Yellow AT4S-BT-YW Amphenol SINE Systems 1: €1.31 156In Stock	Mfr. Part No. AT4S-BT-YW Mouser Part No 654-AT4S-BT-YW	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 4-way Plug, Yellow Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	156In Stock	€1.31 €1.11 €1.01 €0.963 View €0.869 €0.821 €0.731 €0.692 €0.677	Min.: 1 Mult.: 1	Accessories	Backshell	4 Position	Plug (Male)	Yellow		Bulk
Automotive Connectors Boot (Backshell) 6way Receptacle Blk AT6P-BT-BK Amphenol SINE Systems 1: €0.851 34In Stock 900On Order	Mfr. Part No. AT6P-BT-BK Mouser Part No 654-AT6P-BT-BK	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 6way Receptacle Blk Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	34In Stock 900On Order On Order Ship Dates Mfr. No: AT6P-BT-BK Stock: 34 Can Dispatch Immediately On Order: 300 Expected 23/11/2026 600 Expected 21/01/2027 Factory Lead Time: 14 Weeks	€0.851 €0.761 €0.727 €0.701 View €0.65 €0.616 €0.581 €0.577	Min.: 1 Mult.: 1	Accessories	Backshell	6 Position	Receptacle (Female)	Black	AT	Bulk
Automotive Connectors Boot (Backshell) 6way Rcpt Yellow AT6P-BT-YW Amphenol SINE Systems 1: €1.04 280In Stock	Mfr. Part No. AT6P-BT-YW Mouser Part No 654-AT6P-BT-YW	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 6way Rcpt Yellow Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	280In Stock	€1.04 €0.886 €0.783 €0.749 View €0.711 €0.655 €0.557 €0.53 €0.519	Min.: 1 Mult.: 1	Accessories	Backshell	6 Position	Receptacle (Female)	Yellow		Bulk
Automotive Connectors Boot (Backshell) 6-way Plug, Grey AT6S-BT Amphenol SINE Systems 1: €1.06 280In Stock 600Expected 09/11/2026	Mfr. Part No. AT6S-BT Mouser Part No 654-AT6S-BT	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 6-way Plug, Grey Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	280In Stock 600Expected 09/11/2026	€1.06 €0.946 €0.894 €0.849 View €0.712 €0.614	Min.: 1 Mult.: 1	Accessories	Backshell	6 Position	Plug (Male)	Gray	AT	Bulk
Automotive Connectors Boot (Backshell) 6-way Plug, Yellow AT6S-BT-YW Amphenol SINE Systems 1: €1.22 230In Stock	Mfr. Part No. AT6S-BT-YW Mouser Part No 654-AT6S-BT-YW	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 6-way Plug, Yellow Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	230In Stock	€1.22 €1.04 €0.912 €0.869 View €0.808 €0.764 €0.673 €0.642 €0.628	Min.: 1 Mult.: 1	Accessories	Backshell	6 Position	Plug (Male)	Yellow		Bulk
Automotive Connectors Boot (Backshell) 8way Receptacle Grey AT8P-BT Amphenol SINE Systems 1: €0.937 1,568In Stock	Mfr. Part No. AT8P-BT Mouser Part No 654-AT8P-BT	Amphenol SINE Systems	Automotive Connectors Boot (Backshell) 8way Receptacle Grey Learn More about Amphenol SINE Systems amphenol at protective backshell boots	Datasheet	1,568In Stock	€0.937 €0.822 €0.759 €0.74 View €0.694 €0.626 €0.565 €0.556	Min.: 1 Mult.: 1	Accessories	Backshell	8 Position	Receptacle (Female)	Gray	AT	Bulk

AT Protective Backshell Boots

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AT Protective Backshell Boots

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