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Micro-Fit TPA Connectors

Molex Micro-Fit Terminal Position Assurance (TPA) Connectors offer multiple circuit sizes and cable lengths for power applications. These Molex connectors offer 3mm pitch, up to 8.5A maximum current rating, and numerous design options, like terminal position assurance, blind-mating, and compliant pin features. Micro-Fit single- and dual-row connectors prevent terminal back-outs and are compatible with all existing Micro-Fit 3.0 receptacles, enabling a running change to incorporate the TPA products. Typical applications include consumer, telecommunication, medical, networking, sustainable energy, and automotive.

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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.	Product	Type	Number of Positions	Pitch	Number of Rows	Row Spacing	Mounting Style	Termination Style	Mounting Angle	Contact Gender	Series	Tradename	Application	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
Headers & Wire Housings Micro-Fit TPA Recept Dual Row 24 CKTS 172952-2401 Molex 1: $1.09 2,408In Stock	Mfr. Part No. 172952-2401 Mouser Part No 538-172952-2401	Molex	Headers & Wire Housings Micro-Fit TPA Recept Dual Row 24 CKTS Learn More about Molex microfit3	Datasheet	2,408In Stock	$1.09 $0.873 $0.84 $0.821 View $0.775 $0.727 $0.676	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	24 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)	172952	Micro-Fit	Wire-to-Board, Power	- 40 C	+ 105 C	Bulk
Headers & Wire Housings Dual Row 4 Ckt Panel Mounts Black 203632-0401 Molex 1: $0.55 11,899In Stock	Mfr. Part No. 203632-0401 Mouser Part No 538-203632-0401	Molex	Headers & Wire Housings Dual Row 4 Ckt Panel Mounts Black Learn More about Molex micro fit tpa connectors	Datasheet	11,899In Stock	$0.55 $0.462 $0.436 $0.416 View $0.393 $0.343 $0.33 $0.326 $0.312	Min.: 1 Mult.: 1	Wire Housings	Plug Housing	4 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Panel Mount	Crimp	Straight	Pin (Male)	203632	Micro-Fit 3.0	Wire-to-Wire, Power	- 40 C	+ 105 C
Headers & Wire Housings Dual Row 10 Ckt Panel Mounts Black 203632-1000 Molex 1: $0.74 6,941In Stock	Mfr. Part No. 203632-1000 Mouser Part No 538-203632-1000	Molex	Headers & Wire Housings Dual Row 10 Ckt Panel Mounts Black Learn More about Molex micro fit tpa connectors	Datasheet	6,941In Stock	$0.74 $0.641 $0.604 $0.575 View $0.536 $0.497 $0.468 $0.452 $0.429	Min.: 1 Mult.: 1	Wire Housings	Plug Housing	10 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Panel Mount	Crimp	Straight	Pin (Male)	203632	Micro-Fit 3.0	Wire-to-Wire, Power	- 40 C	+ 105 C
Headers & Wire Housings MICROFIT TPA DR PLUG HSG 20CKT V0 203632-2001 Molex 1: $0.95 5,151In Stock	Mfr. Part No. 203632-2001 Mouser Part No 538-203632-2001	Molex	Headers & Wire Housings MICROFIT TPA DR PLUG HSG 20CKT V0 Learn More about Molex micro fit tpa connectors	Datasheet	5,151In Stock	$0.95 $0.676 $0.659 $0.634 View $0.556 $0.523 $0.491 $0.462 $0.44	Min.: 1 Mult.: 1	Wire Housings	Plug Housing	20 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Panel Mount	Crimp	Straight	Pin (Male)	203632	Micro-Fit 3.0	Wire-to-Wire, Power	- 40 C	+ 105 C
Headers & Wire Housings Dual Row 10 Ckt Panel Mounts Black 203632-1001 Molex 1: $0.761 3,166In Stock	Mfr. Part No. 203632-1001 Mouser Part No 538-203632-1001	Molex	Headers & Wire Housings Dual Row 10 Ckt Panel Mounts Black Learn More about Molex micro fit tpa connectors	Datasheet	3,166In Stock	$0.761 $0.651 $0.605 $0.55 View $0.52 $0.493 $0.465 $0.455	Min.: 1 Mult.: 1	Wire Housings	Plug Housing	10 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Panel Mount	Crimp	Straight	Pin (Male)	203632	Micro-Fit 3.0	Wire-to-Wire, Power	- 40 C	+ 105 C
Headers & Wire Housings MicroFit TPA PLG HSG SR 6CKT UL94V0 LH 200875-0006 Molex 1: $0.53 4,109In Stock	Mfr. Part No. 200875-0006 Mouser Part No 538-200875-0006	Molex	Headers & Wire Housings MicroFit TPA PLG HSG SR 6CKT UL94V0 LH Learn More about Molex microfit3	Datasheet	4,109In Stock	$0.53 $0.461 $0.422 $0.397 View $0.358 $0.317 $0.302 $0.293	Min.: 1 Mult.: 1	Wire Housings	Plug Housing	6 Position	3 mm (0.118 in)	1 Row		Cable Mount / Free Hanging	Crimp	Straight	Pin (Male)	200875	Micro-Fit 3.0	Wire-to-Wire, Power	- 40 C	+ 105 C	Bulk
Headers & Wire Housings MICROFIT TPA DR PLUG HSG 16CKT V0 203632-1601 Molex 1: $0.80 2,125In Stock	Mfr. Part No. 203632-1601 Mouser Part No 538-203632-1601	Molex	Headers & Wire Housings MICROFIT TPA DR PLUG HSG 16CKT V0 Learn More about Molex micro fit tpa connectors	Datasheet	2,125In Stock	$0.80 $0.694 $0.635 $0.573 View $0.523 $0.433 $0.379 $0.373 $0.364	Min.: 1 Mult.: 1	Wire Housings	Plug Housing	16 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Panel Mount	Crimp	Straight	Pin (Male)	203632	Micro-Fit 3.0	Wire-to-Wire, Power	- 40 C	+ 105 C
Headers & Wire Housings MicroFit TPA PLG HSG SR 5CKT UL94V0 LH 200875-0005 Molex 1: $0.44 4,452In Stock	Mfr. Part No. 200875-0005 Mouser Part No 538-200875-0005	Molex	Headers & Wire Housings MicroFit TPA PLG HSG SR 5CKT UL94V0 LH Learn More about Molex microfit3	Datasheet	4,452In Stock	$0.44 $0.352 $0.331 $0.315 View $0.274 $0.243 $0.236	Min.: 1 Mult.: 1	Wire Housings	Plug Housing	5 Position	3 mm (0.118 in)	1 Row		Cable Mount / Free Hanging	Crimp	Straight	Pin (Male)	200875	Micro-Fit 3.0	Wire-to-Wire, Power	- 40 C	+ 105 C	Bulk
Headers & Wire Housings Dual Row 12 Ckt Panel Mounts Black 203632-1200 Molex 1: $0.82 2,402In Stock	Mfr. Part No. 203632-1200 Mouser Part No 538-203632-1200	Molex	Headers & Wire Housings Dual Row 12 Ckt Panel Mounts Black Learn More about Molex micro fit tpa connectors	Datasheet	2,402In Stock	$0.82 $0.719 $0.68 $0.647 View $0.59 $0.547 $0.518	Min.: 1 Mult.: 1	Wire Housings	Plug Housing	12 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Panel Mount	Crimp	Straight	Pin (Male)	203632	Micro-Fit 3.0	Wire-to-Wire, Power	- 40 C	+ 105 C
Headers & Wire Housings MICROFIT TPA DR PLUG HSG PNLMNT 18CKT V0 203632-1800 Molex 1: $0.861 2,061In Stock	Mfr. Part No. 203632-1800 Mouser Part No 538-203632-1800	Molex	Headers & Wire Housings MICROFIT TPA DR PLUG HSG PNLMNT 18CKT V0 Learn More about Molex micro fit tpa connectors	Datasheet	2,061In Stock	$0.861 $0.748 $0.684 $0.618 View $0.487 $0.422 $0.414 $0.399 $0.39	Min.: 1 Mult.: 1	Wire Housings	Plug Housing	18 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Panel Mount	Crimp	Straight	Pin (Male)	203632	Micro-Fit 3.0	Wire-to-Wire, Power	- 40 C	+ 105 C
Headers & Wire Housings Dual Row 12 Ckt Panel Mounts Black 203632-1201 Molex 1: $0.861 2,375In Stock	Mfr. Part No. 203632-1201 Mouser Part No 538-203632-1201	Molex	Headers & Wire Housings Dual Row 12 Ckt Panel Mounts Black Learn More about Molex micro fit tpa connectors	Datasheet	2,375In Stock	$0.861 $0.756 $0.716 $0.687 View $0.583 $0.551 $0.507	Min.: 1 Mult.: 1	Wire Housings	Plug Housing	12 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Panel Mount	Crimp	Straight	Pin (Male)	203632	Micro-Fit 3.0	Wire-to-Wire, Power	- 40 C	+ 105 C
Headers & Wire Housings MicroFit TPA PLG HSG SR 4CKT UL94V0 LH 200875-0004 Molex 1: $0.461 4,288In Stock	Mfr. Part No. 200875-0004 Mouser Part No 538-200875-0004	Molex	Headers & Wire Housings MicroFit TPA PLG HSG SR 4CKT UL94V0 LH Learn More about Molex microfit3	Datasheet	4,288In Stock	$0.461 $0.388 $0.359 $0.349 View $0.315 $0.273 $0.266 $0.259	Min.: 1 Mult.: 1	Wire Housings	Plug Housing	4 Position	3 mm (0.118 in)	1 Row		Cable Mount / Free Hanging	Crimp	Straight	Pin (Male)	200875	Micro-Fit 3.0	Wire-to-Wire, Power	- 40 C	+ 105 C	Bulk
Headers & Wire Housings Micro-Fit TPA RECEP 4CKT DUAL ROW LH BLK 172952-0401 Molex 1: $0.43 41,356In Stock	Mfr. Part No. 172952-0401 Mouser Part No 538-172952-0401	Molex	Headers & Wire Housings Micro-Fit TPA RECEP 4CKT DUAL ROW LH BLK Learn More about Molex microfit3	Datasheet	41,356In Stock	$0.43 $0.363 $0.324 $0.302 View $0.276 $0.243 $0.233 $0.217 $0.213	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	4 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)	172952	Micro-Fit 3.0	Wire-to-Board, Power	- 40 C	+ 105 C	Bulk
Headers & Wire Housings Micro-Fit TPA RECEP 8CKT DUAL ROW LH BLK 172952-0801 Molex 1: $0.67 13,065In Stock	Mfr. Part No. 172952-0801 Mouser Part No 538-172952-0801	Molex	Headers & Wire Housings Micro-Fit TPA RECEP 8CKT DUAL ROW LH BLK Learn More about Molex microfit3	Datasheet	13,065In Stock	$0.67 $0.522 $0.481 $0.449 View $0.424 $0.361 $0.34	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	8 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)	172952	Micro-Fit 3.0	Wire-to-Board, Power	- 40 C	+ 105 C	Bulk
Headers & Wire Housings Micro-Fit TPA RECEP 10CKT DUALROW LH BLK 172952-1001 Molex 1: $0.73 7,521In Stock	Mfr. Part No. 172952-1001 Mouser Part No 538-172952-1001	Molex	Headers & Wire Housings Micro-Fit TPA RECEP 10CKT DUALROW LH BLK Learn More about Molex microfit3	Datasheet	7,521In Stock	$0.73 $0.618 $0.551 $0.526 View $0.468 $0.445 $0.413 $0.409 $0.408	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	10 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)	172952	Micro-Fit 3.0	Wire-to-Board, Power	- 40 C	+ 105 C	Bulk
Headers & Wire Housings Micro-Fit TPA RECEP 14CKT DUALROW LH BLK 172952-1401 Molex 1: $0.911 5,602In Stock	Mfr. Part No. 172952-1401 Mouser Part No 538-172952-1401	Molex	Headers & Wire Housings Micro-Fit TPA RECEP 14CKT DUALROW LH BLK Learn More about Molex microfit3	Datasheet	5,602In Stock	$0.911 $0.776 $0.693 $0.661 View $0.619 $0.57 $0.543 $0.516	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	14 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)	172952	Micro-Fit 3.0	Wire-to-Board, Power	- 40 C	+ 105 C	Bulk
Headers & Wire Housings Micro-Fit TPA Recept Dual Row 16 CKTS 172952-1601 Molex 1: $0.92 8,044In Stock	Mfr. Part No. 172952-1601 Mouser Part No 538-172952-1601	Molex	Headers & Wire Housings Micro-Fit TPA Recept Dual Row 16 CKTS Learn More about Molex microfit3	Datasheet	8,044In Stock	$0.92 $0.776 $0.715 $0.682 View $0.623 $0.593 $0.579	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	16 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)	172952	Micro-Fit	Wire-to-Board, Power	- 40 C	+ 105 C	Bulk
Headers & Wire Housings Micro-Fit TPA Recept Dual Row 18 CKTS 172952-1801 Molex 1: $0.97 3,818In Stock	Mfr. Part No. 172952-1801 Mouser Part No 538-172952-1801	Molex	Headers & Wire Housings Micro-Fit TPA Recept Dual Row 18 CKTS Learn More about Molex microfit3	Datasheet	3,818In Stock	$0.97 $0.842 $0.789 $0.748 View $0.697 $0.678 $0.645 $0.614 $0.561	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	18 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)	172952	Micro-Fit	Wire-to-Board, Power	- 40 C	+ 105 C	Bulk
Headers & Wire Housings Micro-Fit TPA Recept Dual Row 20 CKTS 172952-2001 Molex 1: $0.99 2,909In Stock	Mfr. Part No. 172952-2001 Mouser Part No 538-172952-2001	Molex	Headers & Wire Housings Micro-Fit TPA Recept Dual Row 20 CKTS Learn More about Molex microfit3	Datasheet	2,909In Stock	$0.99 $0.868 $0.818 $0.783 View $0.733 $0.69 $0.649 $0.62 $0.613	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	20 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)	172952	Micro-Fit	Wire-to-Board, Power	- 40 C	+ 105 C	Bulk
Headers & Wire Housings Micro-Fit TPA Recept Dual Row 22 CKTS 172952-2201 Molex 1: $1.13 4,148In Stock	Mfr. Part No. 172952-2201 Mouser Part No 538-172952-2201	Molex	Headers & Wire Housings Micro-Fit TPA Recept Dual Row 22 CKTS Learn More about Molex microfit3	Datasheet	4,148In Stock	$1.13 $1.03 $0.989 $0.95 View $0.89 $0.847 $0.807 $0.806 $0.755	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	22 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)	172952	Micro-Fit	Wire-to-Board, Power	- 40 C	+ 105 C	Bulk
Headers & Wire Housings MICROFIT 3.0 RECP SNGL RW TPA 2CKT BLK 171850-0200 Molex 1: $0.42 17,303In Stock	Mfr. Part No. 171850-0200 Mouser Part No 538-171850-0200	Molex	Headers & Wire Housings MICROFIT 3.0 RECP SNGL RW TPA 2CKT BLK Learn More about Molex microfit3	Datasheet	17,303In Stock	$0.42 $0.358 $0.30 $0.279 View $0.254 $0.221 $0.217	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	2 Position	3 mm (0.118 in)	1 Row		Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)	171850	Micro-Fit 3.0		- 40 C	+ 105 C	Bulk
Headers & Wire Housings MICROFIT 3.0 RECP SNGL RW TPA 4CKT BLK 171850-0400 Molex 1: $0.67 7,310In Stock	Mfr. Part No. 171850-0400 Mouser Part No 538-171850-0400	Molex	Headers & Wire Housings MICROFIT 3.0 RECP SNGL RW TPA 4CKT BLK Learn More about Molex microfit3	Datasheet	7,310In Stock	$0.67 $0.573 $0.511 $0.476 View $0.434 $0.387 $0.363 $0.356 $0.345	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	4 Position	3 mm (0.118 in)	1 Row		Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)	171850	Micro-Fit 3.0		- 40 C	+ 105 C	Bulk
Headers & Wire Housings MICROFIT 3.0 RECP SNGL RW TPA 5CKT BLK 171850-0500 Molex 1: $0.63 31,863In Stock	Mfr. Part No. 171850-0500 Mouser Part No 538-171850-0500	Molex	Headers & Wire Housings MICROFIT 3.0 RECP SNGL RW TPA 5CKT BLK Learn More about Molex microfit3	Datasheet	31,863In Stock	$0.63 $0.537 $0.479 $0.456 View $0.376 $0.333 $0.322 $0.308	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	5 Position	3 mm (0.118 in)	1 Row		Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)	171850	Micro-Fit 3.0		- 40 C	+ 105 C	Bulk
Headers & Wire Housings Micro-Fit TPA RECEP 6CKT DUAL ROW LH BLK 172952-0601 Molex 1: $0.53 35,489In Stock 25,600Expected 2026/11/05	Mfr. Part No. 172952-0601 Mouser Part No 538-172952-0601	Molex	Headers & Wire Housings Micro-Fit TPA RECEP 6CKT DUAL ROW LH BLK Learn More about Molex microfit3	Datasheet	35,489In Stock 25,600Expected 2026/11/05	$0.53 $0.401 $0.372 $0.35 View $0.311 $0.283 $0.272 $0.269	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	6 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)	172952	Micro-Fit 3.0	Wire-to-Board, Power	- 40 C	+ 105 C	Bulk
Headers & Wire Housings Micro-Fit TPA RECEP 8CKT DUAL ROW GW NAT 172952-0802 Molex 1: $0.93 3,766In Stock	Mfr. Part No. 172952-0802 Mouser Part No 538-172952-0802	Molex	Headers & Wire Housings Micro-Fit TPA RECEP 8CKT DUAL ROW GW NAT Learn More about Molex microfit3	Datasheet	3,766In Stock	$0.93 $0.807 $0.739 $0.665 View $0.608 $0.504 $0.471 $0.40 $0.391	Min.: 1 Mult.: 1			8 Position	3 mm (0.118 in)	2 Row	3 mm (0.118 in)	Cable Mount / Free Hanging		Straight		172952	Micro-Fit 3.0		- 40 C	+ 105 C	Bulk

Micro-Fit TPA Connectors

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