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
CONN RCPT HSG 2POS MEGA-FIT1700010102CONN RCPT HSG 2POS MEGA-FIT1496 - ImmediateView Details
CONN RCPT HSG 4POS 5.70MM1700010104CONN RCPT HSG 4POS 5.70MM0View Details
CONN RCPT HSG 6POS 5.70MM1700010106CONN RCPT HSG 6POS 5.70MM5462 - ImmediateView Details
CONN RCPT HSG 8POS 5.70MM1700010108CONN RCPT HSG 8POS 5.70MM1073 - ImmediateView Details

Ultra-Fit Crimpers and Applicators

ImageManufacturer Part NumberDescriptionPackagingPart StatusTool MethodAvailable QuantityView Details
TOOL HAND CRIMPER 172253 SIDE0638275300TOOL HAND CRIMPER 172253 SIDEBulkActiveManual45 - Immediate
75 - Factory Stock
View Details
TOOL PRESS APPLICATOR 1722530639032800TOOL PRESS APPLICATOR 172253BulkObsoleteAutomated0View Details
TOOL PRESS APPLICATOR 20-22AWG0639032900TOOL PRESS APPLICATOR 20-22AWGBulkObsoleteAutomated0View Details

Ultra-Fit Crimp Housings

ImageManufacturer Part NumberDescriptionContact TypeAvailable Quantity
CONN RCPT HSG 2POS 3.50MM1722561002CONN RCPT HSG 2POS 3.50MMFemale Socket6934 - ImmediateView Details
CONN RCPT HSG 3POS 3.50MM1722561003CONN RCPT HSG 3POS 3.50MMFemale Socket0View Details
CONN RCPT HSG 4POS 3.50MM1722561004CONN RCPT HSG 4POS 3.50MMFemale Socket1408 - ImmediateView Details
CONN RCPT HSG 6POS 3.50MM1722561006CONN RCPT HSG 6POS 3.50MMFemale Socket0View Details
CONN RCPT HSG 4POS 3.50MM1722581004CONN RCPT HSG 4POS 3.50MMFemale Socket0View Details

Ultra-Fit Crimp Terminals

ImageManufacturer Part NumberDescriptionAvailable Quantity
CONN SOCKET 16-18AWG CRIMP GOLD1722533011CONN SOCKET 16-18AWG CRIMP GOLD0View Details
CONN SOCKET 16-18AWG CRIMP TIN1722533023CONN SOCKET 16-18AWG CRIMP TIN38 - ImmediateView Details
CONN SOCKET 20-22AWG CRIMP GOLD1722533111CONN SOCKET 20-22AWG CRIMP GOLD49 - ImmediateView Details
CONN SOCKET 20-22AWG CRIMP TIN1722533123CONN SOCKET 20-22AWG CRIMP TIN0View Details
CONN SOCKET 16-18AWG CRIMP GOLD1722533012CONN SOCKET 16-18AWG CRIMP GOLD0View Details
CONN SOCKET 20-22AWG CRIMP GOLD1722533112CONN SOCKET 20-22AWG CRIMP GOLD24890 - ImmediateView Details

Ultra-Fit PCB Headers

ImageManufacturer Part NumberDescriptionContact TypeAvailable Quantity
CONN HEADER VERT 2POS 3.5MM1722861102CONN HEADER VERT 2POS 3.5MMMale Pin0View Details
CONN HEADER VERT 2POS 3.5MM1722861202CONN HEADER VERT 2POS 3.5MMMale Pin4 - ImmediateView Details
CONN HEADER VERT 3POS 3.5MM1722861103CONN HEADER VERT 3POS 3.5MMMale Pin0View Details
CONN HEADER VERT 3POS 3.5MM1722861203CONN HEADER VERT 3POS 3.5MMMale Pin0View Details
CONN HEADER VERT 4POS 3.5MM1722861104CONN HEADER VERT 4POS 3.5MMMale Pin1274 - ImmediateView Details

Ultra-Fit TPA Retainers

ImageManufacturer Part NumberDescriptionPart StatusAvailable QuantityView Details
ULTRAFIT TPA V0 NAT 02 CKT1722642002ULTRAFIT TPA V0 NAT 02 CKTActive9419 - ImmediateView Details
ULTRAFIT TPA V0 BLK 05 CKT1722641005ULTRAFIT TPA V0 BLK 05 CKTActive1008 - ImmediateView Details
ULTRAFIT TPA V0 BLK 07 CKT1722641007ULTRAFIT TPA V0 BLK 07 CKTActive3695 - ImmediateView Details
ULTRAFIT TPA V0 BLK 02 CKT1722641002ULTRAFIT TPA V0 BLK 02 CKTActive23351 - ImmediateView Details
ULTRAFIT TPA V0 NAT 03 CKT1722642003ULTRAFIT TPA V0 NAT 03 CKTActive18292 - ImmediateView Details

Mini-Fit Plus Connector Systems

ImageManufacturer Part NumberDescriptionTypeAvailable Quantity
CONN PIN 18-20AWG CRIMP GOLD0460121241CONN PIN 18-20AWG CRIMP GOLD-2122 - Immediate
192000 - Factory Stock
View Details

Mini-Fit TPA Plugs and Receptacles

ImageManufacturer Part NumberDescriptionPackagingPart StatusAccessory TypeAvailable QuantityView Details
CONN KEY RETENT FOR MINI-FIT JR0015979061CONN KEY RETENT FOR MINI-FIT JRBagObsoleteRetention Key97 - ImmediateView Details

Micro-Fit 3.0 Interconnect System

ImageManufacturer Part NumberDescriptionAvailable Quantity
CONN SOCKET 20-24AWG CRIMP GOLD0462355001CONN SOCKET 20-24AWG CRIMP GOLD0View Details
CONN SOCKET 20-24AWG CRIMP GOLD0462355002CONN SOCKET 20-24AWG CRIMP GOLD219805 - ImmediateView Details
CONN SOCKET 26-30AWG CRIMP GOLD0462355003CONN SOCKET 26-30AWG CRIMP GOLD249448 - ImmediateView Details
CONN SOCKET 26-30AWG CRIMP GOLD0462355004CONN SOCKET 26-30AWG CRIMP GOLD326497 - ImmediateView Details
Published: 2014-11-06

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