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Power Triple Lock Connector System

TE Connectivity's (TE) Power Triple Lock (PTL) Connector System offers three locking methods and an enhanced design to meet the market demand for improved connector stability and reliability in power and signal applications. An audible 'lock' latch provides confirmation when the cap and plug are mated while the ribs surrounding the latch prevent wires from becoming snagged underneath the latch. Optional Connector Position Assurance (CPA) ensures the PTL Connector System is not accidentally disengaged. The optional Terminal Position Assurance (TPA) feature ensures contacts are fully seated in the housing and provides an added measure against contact backout. Additional features include high temperature housings up to 150°C (302°F) and an upgraded lanceless contact design.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Headers & Wire Housings 22 Awg Tab contact 1971786-2 TE Connectivity / AMP 4,400: $0.067 57,200In Stock	Mfr. Part No. 1971786-2 Mouser Part No 571-1971786-2	TE Connectivity / AMP	Headers & Wire Housings 22 Awg Tab contact Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	57,200In Stock	Reel $0.067 $0.064	Min.: 4,400 Mult.: 4,400 : 4,400
Power to the Board 3 x 5 PBT-A Cap Hsg Panel Mount 1-1971875-7 TE Connectivity / AMP 1: $1.45 3,899In Stock	Mfr. Part No. 1-1971875-7 Mouser Part No 571-1-1971875-7	TE Connectivity / AMP	Power to the Board 3 x 5 PBT-A Cap Hsg Panel Mount Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	3,899In Stock	$1.45 $1.24 $1.11 $1.01 View $0.964 $0.927 $0.88 $0.833	Min.: 1 Mult.: 1
Headers & Wire Housings 14 AWG PhosBr Rcpt Con Term Reel/4000 1971781-1 TE Connectivity / AMP 4,000: $0.065 52,000In Stock	Mfr. Part No. 1971781-1 Mouser Part No 571-1971781-1	TE Connectivity / AMP	Headers & Wire Housings 14 AWG PhosBr Rcpt Con Term Reel/4000 Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	52,000In Stock	Reel $0.065 $0.064 $0.06 $0.057 $0.051	Min.: 4,000 Mult.: 4,000 : 4,000
Headers & Wire Housings 1x5 plug housing lgr Key A 5-1971773-7 TE Connectivity 1: $0.70 30,121In Stock	Mfr. Part No. 5-1971773-7 Mouser Part No 571-5-1971773-7	TE Connectivity	Headers & Wire Housings 1x5 plug housing lgr Key A Learn More about TE Connectivity te ptl connectors	Datasheet	30,121In Stock	$0.70 $0.598 $0.529 $0.508 View $0.454 $0.379 $0.358 $0.352 $0.35	Min.: 1 Mult.: 1
Power to the Board 1x3 plug housing dgr Key A 5-2232265-3 TE Connectivity 1: $0.611 19,869In Stock	Mfr. Part No. 5-2232265-3 Mouser Part No 571-5-2232265-3	TE Connectivity	Power to the Board 1x3 plug housing dgr Key A Learn More about TE Connectivity te ptl connectors	Datasheet	19,869In Stock	$0.611 $0.542 $0.505 $0.45 View $0.429 $0.422 $0.418	Min.: 1 Mult.: 1
Power to the Board 1x4 plug housing dgr Key A 5-2232265-4 TE Connectivity 1: $0.80 10,064In Stock	Mfr. Part No. 5-2232265-4 Mouser Part No 571-5-2232265-4	TE Connectivity	Power to the Board 1x4 plug housing dgr Key A Learn More about TE Connectivity te ptl connectors	Datasheet	10,064In Stock	$0.80 $0.679 $0.606 $0.55 View $0.49 $0.45 $0.42 $0.419	Min.: 1 Mult.: 1
Power to the Board 1x4 cap housing lgr panel mount Key A 5-1971772-4 TE Connectivity 1: $0.83 9,997In Stock	Mfr. Part No. 5-1971772-4 Mouser Part No 571-5-1971772-4	TE Connectivity	Power to the Board 1x4 cap housing lgr panel mount Key A Learn More about TE Connectivity te ptl connectors	Datasheet	9,997In Stock	$0.83 $0.747 $0.70 $0.671 View $0.608 $0.592 $0.523 $0.472 $0.447	Min.: 1 Mult.: 1
Headers & Wire Housings 1x4 plug housing lgr Key A 5-1971773-4 TE Connectivity 1: $0.57 28,208In Stock	Mfr. Part No. 5-1971773-4 Mouser Part No 571-5-1971773-4	TE Connectivity	Headers & Wire Housings 1x4 plug housing lgr Key A Learn More about TE Connectivity te ptl connectors	Datasheet	28,208In Stock	$0.57 $0.507 $0.473 $0.461 View $0.418 $0.40 $0.372 $0.362	Min.: 1 Mult.: 1
Headers & Wire Housings 1x4 cap housing dgr panel mount Key A 5-2232263-4 TE Connectivity 1: $1.05 11,519In Stock	Mfr. Part No. 5-2232263-4 Mouser Part No 571-5-2232263-4	TE Connectivity	Headers & Wire Housings 1x4 cap housing dgr panel mount Key A Learn More about TE Connectivity te ptl connectors	Datasheet	11,519In Stock	$1.05 $0.89 $0.794 $0.754 View $0.685 $0.665 $0.642 $0.60 $0.59	Min.: 1 Mult.: 1
Headers & Wire Housings 1 X 4 PCB Header PC Board Mount 1-1969688-4 TE Connectivity / AMP 1: $2.05 2,069In Stock	Mfr. Part No. 1-1969688-4 Mouser Part No 571-1-1969688-4	TE Connectivity / AMP	Headers & Wire Housings 1 X 4 PCB Header PC Board Mount Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	2,069In Stock	$2.05 $1.98 $1.86 $1.56 View $1.54 $1.43 $1.38 $1.37 $1.35	Min.: 1 Mult.: 1
Headers & Wire Housings 1x3 plug housing lgr Key A 5-1971773-3 TE Connectivity 1: $0.64 9,639In Stock	Mfr. Part No. 5-1971773-3 Mouser Part No 571-5-1971773-3	TE Connectivity	Headers & Wire Housings 1x3 plug housing lgr Key A Learn More about TE Connectivity te ptl connectors	Datasheet	9,639In Stock	$0.64 $0.591 $0.561 $0.545 View $0.426 $0.397 $0.363	Min.: 1 Mult.: 1
Power to the Board 2x3 cap housing dgr panel mount Key A 5-2232264-3 TE Connectivity 1: $0.90 11,133In Stock	Mfr. Part No. 5-2232264-3 Mouser Part No 571-5-2232264-3	TE Connectivity	Power to the Board 2x3 cap housing dgr panel mount Key A Learn More about TE Connectivity te ptl connectors	Datasheet	11,133In Stock	$0.90 $0.801 $0.783 $0.733 View $0.699 $0.666 $0.612 $0.563	Min.: 1 Mult.: 1
Headers & Wire Housings 1 X 5 PCB Header PC Board Mount 1-1969688-5 TE Connectivity / AMP 1: $2.11 1,529In Stock	Mfr. Part No. 1-1969688-5 Mouser Part No 571-1-1969688-5	TE Connectivity / AMP	Headers & Wire Housings 1 X 5 PCB Header PC Board Mount Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	1,529In Stock	$2.11 $2.09 $1.83 $1.58 View $1.43 $1.33 $1.26 $1.21	Min.: 1 Mult.: 1
Power to the Board 2x3 plug dgr housing Key A 5-2232266-3 TE Connectivity 1: $1.20 7,863In Stock	Mfr. Part No. 5-2232266-3 Mouser Part No 571-5-2232266-3	TE Connectivity	Power to the Board 2x3 plug dgr housing Key A Learn More about TE Connectivity te ptl connectors	Datasheet	7,863In Stock	$1.20 $1.02 $0.771 $0.747 View $0.701 $0.668 $0.637 $0.586	Min.: 1 Mult.: 1
Headers & Wire Housings 2X18 Awg Receptacle contact 1971787-2 TE Connectivity / AMP 2,200: $0.098 11,000In Stock	Mfr. Part No. 1971787-2 Mouser Part No 571-1971787-2	TE Connectivity / AMP	Headers & Wire Housings 2X18 Awg Receptacle contact Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	11,000In Stock	Reel $0.098 $0.092 $0.09 $0.085 $0.076 $0.072	Min.: 2,200 Mult.: 2,200 : 2,200
Headers & Wire Housings 16-20 AWG Brass Pin Con Term CutStp/100 1971784-1 (Cut Strip) TE Connectivity / AMP 100: $0.072 30,200In Stock	Mfr. Part No. 1971784-1 (Cut Strip) Mouser Part No 571-1971784-1-CT	TE Connectivity / AMP	Headers & Wire Housings 16-20 AWG Brass Pin Con Term CutStp/100 Learn More about TE Connectivity / AMP te connectivity harsh environments	Datasheet	30,200In Stock	$0.072	Min.: 100 Mult.: 100
Headers & Wire Housings 22 AWG Brass Pin Contact Terminal 1971786-1 TE Connectivity / AMP 4,400: $0.048 30,800In Stock	Mfr. Part No. 1971786-1 Mouser Part No 571-1971786-1	TE Connectivity / AMP	Headers & Wire Housings 22 AWG Brass Pin Contact Terminal Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	30,800In Stock	Reel $0.048 $0.044 $0.041	Min.: 4,400 Mult.: 4,400 : 4,400
Power to the Board 1 x 5 PBT-A Cap Hsg Panel Mount 1-1971772-7 TE Connectivity / AMP 1: $0.57 19,688In Stock	Mfr. Part No. 1-1971772-7 Mouser Part No 571-1-1971772-7	TE Connectivity / AMP	Power to the Board 1 x 5 PBT-A Cap Hsg Panel Mount Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	19,688In Stock	$0.57 $0.508 $0.473 $0.449 View $0.402 $0.343	Min.: 1 Mult.: 1
Automotive Connectors 2 X 5 150C BLK TPA-Locking Plate 1971778-5 TE Connectivity / AMP 1: $0.361 4,405In Stock	Mfr. Part No. 1971778-5 Mouser Part No 571-1971778-5	TE Connectivity / AMP	Automotive Connectors 2 X 5 150C BLK TPA-Locking Plate Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	4,405In Stock	$0.361 $0.307 $0.27 $0.261 View $0.221 $0.199 $0.198	Min.: 1 Mult.: 1
Power to the Board 1x5 cap housing lgr panel mount Key A 5-1971772-7 TE Connectivity 1: $0.85 16,326In Stock	Mfr. Part No. 5-1971772-7 Mouser Part No 571-5-1971772-7	TE Connectivity	Power to the Board 1x5 cap housing lgr panel mount Key A Learn More about TE Connectivity te ptl connectors	Datasheet	16,326In Stock	$0.85 $0.725 $0.647 $0.598 View $0.57 $0.542 $0.49 $0.433	Min.: 1 Mult.: 1
Headers & Wire Housings 3 x 3 PBT-A Plug Hsg 1-1971876-3 TE Connectivity / AMP 1: $0.611 2,968In Stock	Mfr. Part No. 1-1971876-3 Mouser Part No 571-1-1971876-3	TE Connectivity / AMP	Headers & Wire Housings 3 x 3 PBT-A Plug Hsg Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	2,968In Stock	$0.611 $0.583 $0.558 $0.551 View $0.512 $0.416 $0.392	Min.: 1 Mult.: 1
Headers & Wire Housings 1x2 plug housing lgr Key A 9-1971773-2 TE Connectivity 1: $0.82 41,999In Stock	Mfr. Part No. 9-1971773-2 Mouser Part No 571-9-1971773-2	TE Connectivity	Headers & Wire Housings 1x2 plug housing lgr Key A Learn More about TE Connectivity te ptl connectors	Datasheet	41,999In Stock	$0.82 $0.695 $0.621 $0.591 View $0.528 $0.483 $0.45 $0.437 $0.426	Min.: 1 Mult.: 1
Headers & Wire Housings 1 X 2 150C BLK TPA-Locking Plate 1971777-2 TE Connectivity / AMP 1: $0.32 31,050In Stock 49,000Expected 2026/11/02	Mfr. Part No. 1971777-2 Mouser Part No 571-1971777-2	TE Connectivity / AMP	Headers & Wire Housings 1 X 2 150C BLK TPA-Locking Plate Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	31,050In Stock 49,000Expected 2026/11/02	$0.32 $0.267 $0.24 $0.221 View $0.192 $0.162 $0.154 $0.15 $0.134	Min.: 1 Mult.: 1
Headers & Wire Housings 1 X 3 150C BLK TPA-Locking Plate 1971777-3 TE Connectivity / AMP 1: $0.43 12,052In Stock	Mfr. Part No. 1971777-3 Mouser Part No 571-1971777-3	TE Connectivity / AMP	Headers & Wire Housings 1 X 3 150C BLK TPA-Locking Plate Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	12,052In Stock	$0.43 $0.32 $0.295 $0.257 View $0.236 $0.226 $0.219 $0.215	Min.: 1 Mult.: 1
Headers & Wire Housings 12 Awg Receptacle contact 1971779-2 TE Connectivity / AMP 1: $0.17 73,315In Stock	Mfr. Part No. 1971779-2 Mouser Part No 571-1971779-2	TE Connectivity / AMP	Headers & Wire Housings 12 Awg Receptacle contact Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	73,315In Stock	$0.17 $0.147 $0.13 $0.124 View $0.11 $0.102 $0.097 $0.087	Min.: 1 Mult.: 1

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