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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 (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
Headers & Wire Housings 16-20 AWG PhsBr Rcpt Con Term Reel/3700 1971783-1 TE Connectivity 3,700: €0.048 99,900In Stock	Mfr. Part No. 1971783-1 Mouser Part No 571-1971783-1	TE Connectivity	Headers & Wire Housings 16-20 AWG PhsBr Rcpt Con Term Reel/3700 Learn More about TE Connectivity te ptl connectors	Datasheet	99,900In Stock	Reel €0.048 €0.047 €0.045 €0.042 €0.04 €0.038	Min.: 3,700 Mult.: 3,700 : 3,700
Headers & Wire Housings 16-20 AWG Brass Pin Con Term Reel/3700 1971784-1 TE Connectivity / AMP 3,700: €0.038 66,600In Stock	Mfr. Part No. 1971784-1 Mouser Part No 571-1971784-1	TE Connectivity / AMP	Headers & Wire Housings 16-20 AWG Brass Pin Con Term Reel/3700 Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	66,600In Stock	Reel €0.038 €0.036 €0.034 €0.029 €0.027	Min.: 3,700 Mult.: 3,700 : 3,700
Headers & Wire Housings 22 AWG PhosBr Rcpt Contact Terminal 1971785-1 TE Connectivity / AMP 4,400: €0.053 66,000In Stock	Mfr. Part No. 1971785-1 Mouser Part No 571-1971785-1	TE Connectivity / AMP	Headers & Wire Housings 22 AWG PhosBr Rcpt Contact Terminal Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	66,000In Stock	Reel €0.053 €0.049 €0.046	Min.: 4,400 Mult.: 4,400 : 4,400
Headers & Wire Housings CPA 1971789-1 TE Connectivity 1: €0.275 36,310In Stock	Mfr. Part No. 1971789-1 Mouser Part No 571-1971789-1	TE Connectivity	Headers & Wire Housings CPA Learn More about TE Connectivity te ptl connectors	Datasheet	36,310In Stock	€0.275 €0.231 €0.206 €0.183 View €0.163 €0.14 €0.132 €0.131	Min.: 1 Mult.: 1
Power to the Board 2x4 plug housing lgr Key A 5-1971776-4 TE Connectivity 1: €0.998 3,428In Stock	Mfr. Part No. 5-1971776-4 Mouser Part No 571-5-1971776-4	TE Connectivity	Power to the Board 2x4 plug housing lgr Key A Learn More about TE Connectivity te ptl connectors	Datasheet	3,428In Stock	€0.998 €0.845 €0.754 €0.718 View €0.673 €0.562 €0.544 €0.525	Min.: 1 Mult.: 1
Heavy Duty Power Connectors PTL MFBL 1X3 PLUG HOUSING 5-2232362-3 TE Connectivity / AMP 1: €0.396 9,248In Stock	Mfr. Part No. 5-2232362-3 Mouser Part No 571-5-2232362-3	TE Connectivity / AMP	Heavy Duty Power Connectors PTL MFBL 1X3 PLUG HOUSING Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	9,248In Stock	€0.396 €0.335 €0.299 €0.285 View €0.255 €0.242 €0.224 €0.216 €0.206	Min.: 1 Mult.: 1
Power to the Board 1 x 2 PBT-A Cap Hsg Panel Mount 1-1971772-2 TE Connectivity / AMP 1: €0.654 4,350In Stock	Mfr. Part No. 1-1971772-2 Mouser Part No 571-1-1971772-2	TE Connectivity / AMP	Power to the Board 1 x 2 PBT-A Cap Hsg Panel Mount Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	4,350In Stock	€0.654 €0.558 €0.482 €0.452 View €0.411 €0.35 €0.348 €0.339 €0.323	Min.: 1 Mult.: 1
Power to the Board 1 x 3 PBT-A Cap Hsg Panel Mount 1-1971772-3 TE Connectivity / AMP 1: €0.671 17,351In Stock	Mfr. Part No. 1-1971772-3 Mouser Part No 571-1-1971772-3	TE Connectivity / AMP	Power to the Board 1 x 3 PBT-A Cap Hsg Panel Mount Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	17,351In Stock	€0.671 €0.571 €0.51 €0.468 View €0.415 €0.365 €0.359 €0.355	Min.: 1 Mult.: 1
Power to the Board 1 x 4 PBT-A Cap Hsg Panel Mount 1-1971772-4 TE Connectivity / AMP 1: €0.628 7,173In Stock	Mfr. Part No. 1-1971772-4 Mouser Part No 571-1-1971772-4	TE Connectivity / AMP	Power to the Board 1 x 4 PBT-A Cap Hsg Panel Mount Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	7,173In Stock	€0.628 €0.531 €0.475 €0.434 View €0.402 €0.372 €0.356 €0.352 €0.34	Min.: 1 Mult.: 1
Power to the Board 1 x 2 PBT-A Plug Hsg 1-1971773-2 TE Connectivity / AMP 1: €0.55 15,533In Stock	Mfr. Part No. 1-1971773-2 Mouser Part No 571-1-1971773-2	TE Connectivity / AMP	Power to the Board 1 x 2 PBT-A Plug Hsg Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	15,533In Stock	€0.55 €0.452 €0.42 €0.384 View €0.329 €0.304 €0.288 €0.283 €0.274	Min.: 1 Mult.: 1
Power to the Board 1 x 3 PBT-A Plug Hsg 1-1971773-3 TE Connectivity / AMP 1: €0.568 10,544In Stock	Mfr. Part No. 1-1971773-3 Mouser Part No 571-1-1971773-3	TE Connectivity / AMP	Power to the Board 1 x 3 PBT-A Plug Hsg Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	10,544In Stock	€0.568 €0.48 €0.428 €0.408 View €0.362 €0.327 €0.30 €0.294	Min.: 1 Mult.: 1
Power to the Board 1 x 4 PBT-A Plug Hsg 1-1971773-4 TE Connectivity / AMP 1: €0.559 15,165In Stock	Mfr. Part No. 1-1971773-4 Mouser Part No 571-1-1971773-4	TE Connectivity / AMP	Power to the Board 1 x 4 PBT-A Plug Hsg Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	15,165In Stock	€0.559 €0.485 €0.433 €0.413 View €0.368 €0.334 €0.317 €0.315 €0.31	Min.: 1 Mult.: 1
Automotive Connectors 2 X 4 150C BLK TPA-Locking Plate 1971778-4 TE Connectivity / AMP 1: €0.292 17,751In Stock	Mfr. Part No. 1971778-4 Mouser Part No 571-1971778-4	TE Connectivity / AMP	Automotive Connectors 2 X 4 150C BLK TPA-Locking Plate Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	17,751In Stock	€0.292 €0.248 €0.221 €0.203 View €0.188 €0.171 €0.157 €0.151	Min.: 1 Mult.: 1
Headers & Wire Housings 12 Awg Tab contact 1971780-2 TE Connectivity / AMP 1: €0.163 27,116In Stock 30,000Expected 13/11/2026	Mfr. Part No. 1971780-2 Mouser Part No 571-1971780-2	TE Connectivity / AMP	Headers & Wire Housings 12 Awg Tab contact Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	27,116In Stock 30,000Expected 13/11/2026	Cut Tape €0.163 €0.138 €0.124 €0.118 Reel €0.086 View €0.105 €0.096 €0.084 €0.08	Min.: 1 Mult.: 1 : 2,500
Headers & Wire Housings 16 20 Awg Receptacle contact 1971783-2 TE Connectivity 3,700: €0.042 74,000In Stock	Mfr. Part No. 1971783-2 Mouser Part No 571-1971783-2	TE Connectivity	Headers & Wire Housings 16 20 Awg Receptacle contact Learn More about TE Connectivity te ptl connectors	Datasheet	74,000In Stock	Reel €0.042 €0.041 €0.04	Min.: 3,700 Mult.: 3,700 : 3,700
Power to the Board 1x2 cap housing lgr free hanging Key A 5-1971772-2 TE Connectivity 1: €0.688 10,299In Stock	Mfr. Part No. 5-1971772-2 Mouser Part No 571-5-1971772-2	TE Connectivity	Power to the Board 1x2 cap housing lgr free hanging Key A Learn More about TE Connectivity te ptl connectors	Datasheet	10,299In Stock	€0.688 €0.587 €0.525 €0.476 View €0.439 €0.424 €0.384 €0.373 €0.353	Min.: 1 Mult.: 1
Power to the Board 1x3 cap housing lgr free hanging Key A 5-1971772-3 TE Connectivity 1: €0.731 21,671In Stock	Mfr. Part No. 5-1971772-3 Mouser Part No 571-5-1971772-3	TE Connectivity	Power to the Board 1x3 cap housing lgr free hanging Key A Learn More about TE Connectivity te ptl connectors	Datasheet	21,671In Stock	€0.731 €0.623 €0.556 €0.504 View €0.48 €0.466 €0.435 €0.414 €0.398	Min.: 1 Mult.: 1
Power to the Board 1x3 plug housing dgr Key A 5-2232265-3 TE Connectivity 1: €0.679 8,969In 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	8,969In Stock	€0.679 €0.577 €0.515 €0.458 View €0.425 €0.416 €0.39 €0.385 €0.366	Min.: 1 Mult.: 1
Headers & Wire Housings 1 X 4 150C BLK TPA-Locking Plate 1971777-4 TE Connectivity / AMP 1: €0.275 6,382In Stock	Mfr. Part No. 1971777-4 Mouser Part No 571-1971777-4	TE Connectivity / AMP	Headers & Wire Housings 1 X 4 150C BLK TPA-Locking Plate Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	6,382In Stock	€0.275 €0.236 €0.203 €0.189 View €0.162 €0.146 €0.138 €0.134 €0.126	Min.: 1 Mult.: 1
Headers & Wire Housings 1 X 5 150C BLK TPA-Locking Plate 1971777-5 TE Connectivity / AMP 1: €0.284 2,744In Stock	Mfr. Part No. 1971777-5 Mouser Part No 571-1971777-5	TE Connectivity / AMP	Headers & Wire Housings 1 X 5 150C BLK TPA-Locking Plate Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	2,744In Stock	€0.284 €0.238 €0.213 €0.194 View €0.176 €0.157 €0.14 €0.138	Min.: 1 Mult.: 1
Headers & Wire Housings 14 Awg Tab contact 1971782-2 TE Connectivity / AMP 4,000: €0.059 20,000In Stock	Mfr. Part No. 1971782-2 Mouser Part No 571-1971782-2	TE Connectivity / AMP	Headers & Wire Housings 14 Awg Tab contact Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	20,000In Stock	Reel €0.059 €0.058	Min.: 4,000 Mult.: 4,000 : 4,000
Headers & Wire Housings 16 20 Awg Tab contact 1971784-2 TE Connectivity / AMP 3,700: €0.05 14,800In Stock 29,600Expected 13/11/2026	Mfr. Part No. 1971784-2 Mouser Part No 571-1971784-2	TE Connectivity / AMP	Headers & Wire Housings 16 20 Awg Tab contact Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	14,800In Stock 29,600Expected 13/11/2026	Reel €0.05 €0.047 €0.046 €0.038 €0.035	Min.: 3,700 Mult.: 3,700 : 3,700
Headers & Wire Housings 22 Awg Receptacle contact 1971785-2 TE Connectivity / AMP 4,400: €0.059 8,800In Stock	Mfr. Part No. 1971785-2 Mouser Part No 571-1971785-2	TE Connectivity / AMP	Headers & Wire Housings 22 Awg Receptacle contact Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	8,800In Stock	Reel €0.059 €0.057	Min.: 4,400 Mult.: 4,400 : 4,400
Headers & Wire Housings 2X18 Awg Tab contact 1971788-2 TE Connectivity / AMP 1: €0.215 677In Stock	Mfr. Part No. 1971788-2 Mouser Part No 571-1971788-2	TE Connectivity / AMP	Headers & Wire Housings 2X18 Awg Tab contact Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	677In Stock	Cut Tape €0.215 €0.17 €0.14 €0.126 Reel €0.069 View €0.108 €0.074 €0.067 €0.065	Min.: 1 Mult.: 1 : 2,200
Heavy Duty Power Connectors PTL GROUND TAB CONTACT, 16-19 AWG 2232724-1 TE Connectivity / AMP 1: €0.146 2,954In Stock	Mfr. Part No. 2232724-1 Mouser Part No 571-2232724-1	TE Connectivity / AMP	Heavy Duty Power Connectors PTL GROUND TAB CONTACT, 16-19 AWG Learn More about TE Connectivity / AMP te ptl connectors	Datasheet	2,954In Stock	Cut Tape €0.146 Reel €0.057 €0.053 €0.052 €0.043 €0.042	Min.: 1 Mult.: 1 : 3,700

Power Triple Lock Connector System

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Power Triple Lock Connector System

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