Fit Connector Families

Molex offers their Micro-Fit 3.0™, Mini-Fit®, Ultra-Fit™, and Mega-Fit® connector families

Image of Molex's Fit Connector FamiliesMicro-Fit 3.0™ Interconnect System - The Molex Micro-Fit 3.0™ is a unique interconnect system designed to meet the need for a high contact density signal or power connector and incorporates many of the features previously found on larger power connectors. These 3.00 mm (0.118") pitch connectors are the perfect choice when you need compact connectors that carry up to 5 amperes of current. Micro-Fit products are available in circuit sizes 2 to 24 for single and dual row, wire-to-board and wire-to-wire applications. The product family has over 500 part numbers, with many retention choices including fitting nails, solderable clips, and offset terminal retention. Low Force lubricated terminals are designed for ease of mating and un-mating.

Mini-Fit® Plus Connector Systems - Mini-Fit® Plus system offers a high-current, power-dense, mid-range power connection system. The Mini-Fit Plus system leverages the same housings, PCB footprint, and application tooling as Mini-Fit Jr.™ and Mini-Fit BMI systems.

Mini-Fit® Blind Mate Interface Connectors - Mini-Fit® BMI connectors allow misalignment and provide "float" of up to 2.54 mm (0.100") between mating surfaces for easy blind-mate connections.

Mini-Fit® TPA Plugs and Receptacles - Mini-Fit® TPA plugs and receptacles utilize a highly-visible "TPA pin" that indicates when a terminal is fully seated in the housing and ensures that the terminal will not back out of the housing during mating or when in use.

Mini-Fit Jr.™ Power Connectors - The Mini-Fit Jr.™ Series is designed for high current/high density applications that require the design flexibility of wire-to-wire and wire-to-board configurations in the interconnection system.

Ultra-Fit™ Power Connectors - Eliminate same-circuit-size cross mating, optimize space savings and reduce terminal back-out with low mating force, high-density Ultra-Fit™ Power Connectors.

Mega-Fit® Power Connectors - Continuing to innovate the interconnect industry, Molex expands current-carrying capabilities up to 23.0 A with Mega-Fit® power connectors. These connectors enable one of the highest current-density options compared to existing mid-range power connectors. The innovative split-box terminal design offers six independent points of contact to provide long-term reliability through secondary current-path redundancy. Mega-Fit® power connectors maintain many of the characteristics of Molex’s proven power products including isolated terminals, positive housing locks, and polarized housings.

Image of Molex's Fit Connector Families Banner

Micro-Fit 3.0™
Mini Fit®
Mega Fit®
 Pitch: 3.00 mm  Pitch: 4.20 mm  Pitch: 3.50 mm  Pitch: 5.70 mm
C Rating (voltage): 5 A
C Rating (voltage): 13 A
C Rating (voltage): 14.0 A
C Rating (voltage): 23 A

**See below for a sampling of these part numbers. For full Product Highlight pages, click on the three title links above.

Mega-Fit® Power Connectors

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
1700010102 datasheet linkMEGA-FIT RECEP HSG 2 CKT GLOW-WI1700010102MEGA-FIT RECEP HSG 2 CKT GLOW-WI6603 - Immediate
1700010102 product page link
1700010106 datasheet linkMEGA-FIT RECEP HSG 6 CKT GLOW-WI1700010106MEGA-FIT RECEP HSG 6 CKT GLOW-WI1607 - Immediate
1700010106 product page link
1700010104 datasheet linkMEGA-FIT RECEP HSG 4 CKT GLOW-WI1700010104MEGA-FIT RECEP HSG 4 CKT GLOW-WI200 - Immediate
1700010104 product page link
1700010108 datasheet linkMEGA-FIT RECEP HSG 8 CKT GLOW-WI1700010108MEGA-FIT RECEP HSG 8 CKT GLOW-WI621 - Immediate
1700010108 product page link

Ultra-Fit™ Crimpers and Applicators

ImageManufacturer Part NumberDescriptionTool TypeFor Use With/Related ProductsFeaturesAvailable QuantityView Details
0638275300 datasheet linkTOOL HAND CRIMPER 172253 SIDE0638275300TOOL HAND CRIMPER 172253 SIDEHand Crimper172253-3011, 172253-3012, 172253-3023Side Entry, Ratchet36 - Immediate
55 - Factory Stock
0638275300 product page link

Ultra-Fit™ Crimp Housings

ImageManufacturer Part NumberDescriptionNumber of PositionsAvailable QuantityView Details
1722561002 datasheet linkRCPT HSG SGL V0 BLK 02 CKT1722561002RCPT HSG SGL V0 BLK 02 CKT21870 - Immediate
1722561002 product page link
1722581004 datasheet linkRCPT HSG DUAL V0 BLK 04 CKT1722581004RCPT HSG DUAL V0 BLK 04 CKT48141 - Immediate
1722581004 product page link
1722561003 datasheet linkRCPT HSG SGL V0 BLK 03 CKT1722561003RCPT HSG SGL V0 BLK 03 CKT32904 - Immediate
1722561003 product page link
1722561004 datasheet linkRCPT HSG SGL V0 BLK 04 CKT1722561004RCPT HSG SGL V0 BLK 04 CKT422439 - Immediate
1722561004 product page link
1722581006 datasheet linkRCPT HSG DUAL V0 BLK 06 CKT1722581006RCPT HSG DUAL V0 BLK 06 CKT63245 - Immediate
1722581006 product page link
View More

Ultra-Fit™ Crimp Terminals

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
1722533023 datasheet linkULTRAFIT CRIMP TERM1722533023ULTRAFIT CRIMP TERM82101 - Immediate
1722533023 product page link
1722533011 datasheet linkULTRAFIT CRIMP TERM1722533011ULTRAFIT CRIMP TERM40862 - Immediate
330000 - Factory Stock
1722533011 product page link
1722533111 datasheet linkULTRAFIT CRIMP TERM1722533111ULTRAFIT CRIMP TERM36557 - Immediate
75000 - Factory Stock
1722533111 product page link
1722533012 datasheet linkCRIMP TERM 1618 SGOLD 30MI1722533012CRIMP TERM 1618 SGOLD 30MI38215 - Immediate
45000 - Factory Stock
1722533012 product page link
1722533123 datasheet linkULTRAFIT CRIMP TERM1722533123ULTRAFIT CRIMP TERM79178 - Immediate
1722533123 product page link
1722533112 datasheet linkCRIMP TERM 2022 SGOLD 30MI1722533112CRIMP TERM 2022 SGOLD 30MI9733 - Immediate
30000 - Factory Stock
1722533112 product page link

Ultra-Fit™ PCB Headers

ImageManufacturer Part NumberDescriptionPitch - MatingAvailable QuantityView Details
1722861102 datasheet linkULTRAFIT CONN HDR 02CKT1722861102ULTRAFIT CONN HDR 02CKT0.138" (3.50mm)5016 - Immediate
1722861102 product page link
1722861103 datasheet linkULTRAFIT CONN HDR 03CKT1722861103ULTRAFIT CONN HDR 03CKT0.138" (3.50mm)1738 - Immediate
1722861103 product page link
1722861104 datasheet linkULTRAFIT CONN HDR 04CKT1722861104ULTRAFIT CONN HDR 04CKT0.138" (3.50mm)5221 - Immediate
1722861104 product page link
1722861202 datasheet linkULTRAFIT CONN HDR 02CKT1722861202ULTRAFIT CONN HDR 02CKT0.138" (3.50mm)1457 - Immediate
1722861202 product page link
1722861203 datasheet linkULTRAFIT CONN HDR 03CKT1722861203ULTRAFIT CONN HDR 03CKT0.138" (3.50mm)271 - Immediate
1722861203 product page link
View More

Ultra-Fit™ TPA Retainers

ImageManufacturer Part NumberDescriptionNumber of PositionsAvailable QuantityView Details
1722642002 datasheet linkULTRAFIT TPA V0 NAT 02 CKT1722642002ULTRAFIT TPA V0 NAT 02 CKT220214 - Immediate
1722642002 product page link
1722641002 datasheet linkULTRAFIT TPA V0 BLK 02 CKT1722641002ULTRAFIT TPA V0 BLK 02 CKT212360 - Immediate
20000 - Factory Stock
1722641002 product page link
1722642004 datasheet linkULTRAFIT TPA V0 NAT 04 CKT1722642004ULTRAFIT TPA V0 NAT 04 CKT47193 - Immediate
1722642004 product page link
1722642003 datasheet linkULTRAFIT TPA V0 NAT 03 CKT1722642003ULTRAFIT TPA V0 NAT 03 CKT32963 - Immediate
1722642003 product page link
1722641005 datasheet linkULTRAFIT TPA V0 BLK 05 CKT1722641005ULTRAFIT TPA V0 BLK 05 CKT5753 - Immediate
1722641005 product page link
View More

Mini-Fit® Plus Connector Systems

ImageManufacturer Part NumberDescriptionPin or SocketAvailable QuantityView Details
0460121241 datasheet linkCONN PIN HCS 18-20AWG GOLD0460121241CONN PIN HCS 18-20AWG GOLDPin15246 - Immediate
184000 - Factory Stock
0460121241 product page link

Mini-Fit® Blind Mate Interface Connectors

ImageManufacturer Part NumberDescriptionConnector TypeContact TypeAvailable QuantityView Details
43810-0001 datasheet linkCONN HEADER 4POS R/A W/CLIP TIN43810-0001CONN HEADER 4POS R/A W/CLIP TINHeaderMale Pin184 - Immediate
43810-0001 product page link

Mini-Fit® TPA Plugs and Receptacles

ImageManufacturer Part NumberDescriptionAccessory TypeNumber of PositionsFor Use With/Related ProductsAvailable QuantityView Details
0015979061 datasheet linkCONN KEY RETENT FOR MINI-FIT JR0015979061CONN KEY RETENT FOR MINI-FIT JRRetention Key6Mini-Fit Jr Series194 - Immediate
0015979061 product page link

Mini-Fit Jr.™ Power Connectors

ImageManufacturer Part NumberDescriptionConnector TypeContact TypeAvailable QuantityView Details
39-01-4033 datasheet linkCONN PLUG 3POS VERT PANEL MOUNT39-01-4033CONN PLUG 3POS VERT PANEL MOUNTPlugMale Pin4437 - Immediate
39-01-4033 product page link

Micro-Fit 3.0™ Interconnect System

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
0462355002 datasheet linkCONN TRM 30U 20-24AWG LUBRICATE0462355002CONN TRM 30U 20-24AWG LUBRICATE174297 - Immediate
0462355002 product page link
0462355001 datasheet linkCONN TRM 15U 20-24AWG LUBRICATE0462355001CONN TRM 15U 20-24AWG LUBRICATE49021 - Immediate
108000 - Factory Stock
0462355001 product page link
0462355004 datasheet linkCONN TRM 30U 26-30AWG LUBRICATE0462355004CONN TRM 30U 26-30AWG LUBRICATE327139 - Immediate
0462355004 product page link
0462355003 datasheet linkCONN TRM 15U 26-30AWG LUBRICATE0462355003CONN TRM 15U 26-30AWG LUBRICATE9565 - Immediate
0462355003 product page link
Published: 2014-11-06