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.

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Micro-Fit 3.0™
Mini Fit®
Ultra-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 Quantity
MEGA-FIT RECEP HSG 2 CKT GLOW-WI1700010102MEGA-FIT RECEP HSG 2 CKT GLOW-WI4976 - Immediate
4000 - Factory Stock
View Details
MEGA-FIT RECEP HSG 4 CKT GLOW-WI1700010104MEGA-FIT RECEP HSG 4 CKT GLOW-WI2927 - ImmediateView Details
MEGA-FIT RECEP HSG 6 CKT GLOW-WI1700010106MEGA-FIT RECEP HSG 6 CKT GLOW-WI2465 - ImmediateView Details
MEGA-FIT RECEP HSG 8 CKT GLOW-WI1700010108MEGA-FIT RECEP HSG 8 CKT GLOW-WI332 - ImmediateView Details

Ultra-Fit™ Crimpers and Applicators

ImageManufacturer Part NumberDescriptionTool TypeFor Use With/Related ProductsFeaturesAvailable QuantityView Details
TOOL HAND CRIMPER 172253 SIDE0638275300TOOL HAND CRIMPER 172253 SIDEHand Crimper172253-3011, 172253-3012, 172253-3023Side Entry, Ratchet25 - Immediate
30 - Factory Stock
View Details

Ultra-Fit™ Crimp Housings

ImageManufacturer Part NumberDescriptionNumber of PositionsAvailable Quantity
RCPT HSG SGL V0 BLK 02 CKT1722561002RCPT HSG SGL V0 BLK 02 CKT20View Details
RCPT HSG SGL V0 BLK 03 CKT1722561003RCPT HSG SGL V0 BLK 03 CKT32369 - ImmediateView Details
RCPT HSG SGL V0 BLK 04 CKT1722561004RCPT HSG SGL V0 BLK 04 CKT417967 - ImmediateView Details
RCPT HSG SGL V0 BLK 06 CKT1722561006RCPT HSG SGL V0 BLK 06 CKT61630 - ImmediateView Details
RCPT HSG DUAL V0 BLK 04 CKT1722581004RCPT HSG DUAL V0 BLK 04 CKT48224 - ImmediateView Details

Ultra-Fit™ Crimp Terminals

ImageManufacturer Part NumberDescriptionAvailable Quantity
CONN SOCKET 16-18AWG CRIMP GOLD1722533011CONN SOCKET 16-18AWG CRIMP GOLD90727 - Immediate
15000 - Factory Stock
View Details
CONN SOCKET 16-18AWG CRIMP TIN1722533023CONN SOCKET 16-18AWG CRIMP TIN86756 - Immediate
165000 - Factory Stock
View Details
CONN SOCKET 20-22AWG CRIMP GOLD1722533111CONN SOCKET 20-22AWG CRIMP GOLD21753 - Immediate
120000 - Factory Stock
View Details
CONN SOCKET 20-22AWG CRIMP TIN1722533123CONN SOCKET 20-22AWG CRIMP TIN49333 - Immediate
510000 - Factory Stock
View Details
CONN SOCKET 16-18AWG CRIMP GOLD1722533012CONN SOCKET 16-18AWG CRIMP GOLD30605 - Immediate
210000 - Factory Stock
View Details
CONN SOCKET 20-22AWG CRIMP GOLD1722533112CONN SOCKET 20-22AWG CRIMP GOLD27535 - ImmediateView Details

Ultra-Fit™ PCB Headers

ImageManufacturer Part NumberDescriptionPitch - MatingAvailable Quantity
CONN HEADER VERT 2POS 3.5MM1722861102CONN HEADER VERT 2POS 3.5MM0.138" (3.50mm)8679 - ImmediateView Details
CONN HEADER VERT 2POS 3.5MM1722861202CONN HEADER VERT 2POS 3.5MM0.138" (3.50mm)4318 - ImmediateView Details
CONN HEADER VERT 3POS 3.5MM1722861103CONN HEADER VERT 3POS 3.5MM0.138" (3.50mm)3238 - ImmediateView Details
CONN HEADER VERT 3POS 3.5MM1722861203CONN HEADER VERT 3POS 3.5MM0.138" (3.50mm)1838 - ImmediateView Details
CONN HEADER VERT 4POS 3.5MM1722861104CONN HEADER VERT 4POS 3.5MM0.138" (3.50mm)4096 - ImmediateView Details

Ultra-Fit™ TPA Retainers

ImageManufacturer Part NumberDescriptionNumber of PositionsAvailable QuantityView Details
ULTRAFIT TPA V0 NAT 02 CKT1722642002ULTRAFIT TPA V0 NAT 02 CKT234898 - ImmediateView Details
ULTRAFIT TPA V0 BLK 05 CKT1722641005ULTRAFIT TPA V0 BLK 05 CKT52637 - ImmediateView Details
ULTRAFIT TPA V0 BLK 07 CKT1722641007ULTRAFIT TPA V0 BLK 07 CKT72338 - ImmediateView Details
ULTRAFIT TPA V0 BLK 02 CKT1722641002ULTRAFIT TPA V0 BLK 02 CKT213623 - Immediate
5000 - Factory Stock
View Details
ULTRAFIT TPA V0 NAT 03 CKT1722642003ULTRAFIT TPA V0 NAT 03 CKT35888 - Immediate
16000 - Factory Stock
View Details

Mini-Fit® Plus Connector Systems

ImageManufacturer Part NumberDescriptionPin or SocketAvailable Quantity
CONN PIN 18-20AWG CRIMP GOLD0460121241CONN PIN 18-20AWG CRIMP GOLDPin12232 - Immediate
104000 - Factory Stock
View Details

Mini-Fit® Blind Mate Interface Connectors

ImageManufacturer Part NumberDescriptionConnector TypeContact TypeAvailable Quantity
CONN HEADER R/A 4POS 4.2MM43810-0001CONN HEADER R/A 4POS 4.2MMHeaderMale Pin175 - ImmediateView Details

Mini-Fit® TPA Plugs and Receptacles

ImageManufacturer Part NumberDescriptionAccessory TypeNumber of PositionsFor Use With/Related ProductsAvailable QuantityView Details
CONN KEY RETENT FOR MINI-FIT JR0015979061CONN KEY RETENT FOR MINI-FIT JRRetention Key6Mini-Fit Jr Series142 - ImmediateView Details

Mini-Fit Jr.™ Power Connectors

ImageManufacturer Part NumberDescriptionConnector TypeContact TypeAvailable Quantity
CONN PLUG 3POS VERT PANEL MOUNT39-01-4033CONN PLUG 3POS VERT PANEL MOUNTPlugMale Pin6234 - ImmediateView Details

Micro-Fit 3.0™ Interconnect System

ImageManufacturer Part NumberDescriptionAvailable Quantity
CONN SOCKET 20-24AWG CRIMP GOLD0462355001CONN SOCKET 20-24AWG CRIMP GOLD39786 - ImmediateView Details
CONN SOCKET 20-24AWG CRIMP GOLD0462355002CONN SOCKET 20-24AWG CRIMP GOLD100832 - ImmediateView Details
CONN SOCKET 26-30AWG CRIMP GOLD0462355003CONN SOCKET 26-30AWG CRIMP GOLD19831 - ImmediateView Details
CONN SOCKET 26-30AWG CRIMP GOLD0462355004CONN SOCKET 26-30AWG CRIMP GOLD314898 - ImmediateView Details
Published: 2014-11-06

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