Nano-Fit Power Connectors

Molex's Nano-Fit power connectors deliver fully protected header terminals in a small package

Image of Molex Nano-Fit™ Power Connectors Power-application customers are often faced with choosing between headers with exposed terminals that leave connectors susceptible to damage or large, fully isolated headers that consume too much space. Compact Nano-Fit connectors from Molex solve this challenge by providing fully protected header terminals in a small package. Another common issue for design engineers is meeting the requirement to use multiple headers of the same circuit size on one PCB, which complicates assembly and risks mis-mating a receptacle to the wrong header. Nano-Fit connectors address this with multiple mechanical keying options and color-coding logic, reducing cross-mating risk while improving assembly efficiency. Additionally, Nano-Fit connectors offer a 20 AWG UL1569/1007 option, expanding flexibility for power applications.

Features
  • Very small, fully-isolated headers deliver up to 69% PCB space savings
  • Multiple mechanical keying and color-coded options
    • Allows same-circuit, multiple-connector use with virtually no chance of cross-mating
    • Color coding provides visual indication of the proper mating connector, enabling faster assembly
  • Optional terminal position assurance (TPA) retainer
    • Ensures terminals are fully seated in the housing to reduce terminal back-out
    • Retains terminals if the main retention feature fails
  • Ultra-low mate force terminal reduces operator fatigue and improves assembly compliance for high-circuit applications
  • Positive-lock housing with anti-snag design
    • Ensures mated connector assemblies will not accidentally disengage
    • Provides an audible click while mating and protects the latch from damage due to wire snags

Nano-Fit Receptacle/Plug

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
CONN PLUG HSG 2POS 2.50MM2002771102CONN PLUG HSG 2POS 2.50MM21419 - Immediate
10000 - Factory Stock
$0.27View Details
CONN RCPT HSG 2POS 2.50MM1053071202CONN RCPT HSG 2POS 2.50MM13881 - Immediate
20000 - Factory Stock
$0.27View Details
CONN RCPT HSG 4POS 2.50MM1053081204CONN RCPT HSG 4POS 2.50MM12459 - Immediate$0.28View Details
CONN RCPT HSG 3POS 2.50MM1053071203CONN RCPT HSG 3POS 2.50MM17931 - Immediate$0.29View Details
CONN RCPT HSG 4POS 2.50MM1053071204CONN RCPT HSG 4POS 2.50MM15249 - Immediate$0.31View Details

Nano-Fit Header

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
CONN HEADER SMD 2POS 2.5MM1054311102CONN HEADER SMD 2POS 2.5MM10978 - Immediate$1.73View Details
CONN HEADER SMD 3POS 2.5MM1054311103CONN HEADER SMD 3POS 2.5MM2695 - Immediate$1.86View Details
CONN HEADER SMD 4POS 2.5MM1054311104CONN HEADER SMD 4POS 2.5MM77 - Immediate$1.98View Details
CONN HEADER SMD 5POS 2.5MM1054311105CONN HEADER SMD 5POS 2.5MM453 - Immediate$2.10View Details
CONN HEADER SMD 6POS 2.5MM1054311106CONN HEADER SMD 6POS 2.5MM102 - Immediate$2.22View Details

Nano-Fit Contacts

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
CONN 20-22AWG CRIMP TIN1053002100CONN 20-22AWG CRIMP TIN246527 - Immediate
150000 - Factory Stock
$0.12View Details
CONN 24-26AWG CRIMP TIN1053001100CONN 24-26AWG CRIMP TIN217552 - Immediate
375000 - Factory Stock
$0.12View Details
NANO-FIT PLUG TML TIN LB 24-262014471400NANO-FIT PLUG TML TIN LB 24-26155814 - Immediate
90000 - Factory Stock
$0.12View Details
NANO-FIT PLUG TML TIN LB 20-222014472400NANO-FIT PLUG TML TIN LB 20-2288173 - Immediate$0.12View Details
CONN 20-22AWG CRIMP GOLD1053002200CONN 20-22AWG CRIMP GOLD250396 - Immediate
300000 - Factory Stock
$0.15View Details

Nano-Fit TPA Accessories

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
NANOFIT TPA V0 WHT 2 CKT1053252002NANOFIT TPA V0 WHT 2 CKT3987 - Immediate$0.08View Details
NANOFIT TPA V0 WHT 3 CKT1053252003NANOFIT TPA V0 WHT 3 CKT9105 - Immediate$0.10View Details
NANOFIT TPA V0 WHT 4 CKT1053252004NANOFIT TPA V0 WHT 4 CKT9549 - Immediate
7600 - Factory Stock
$0.11View Details
NANOFIT TPA V0 WHT 6 CKT1053252006NANOFIT TPA V0 WHT 6 CKT6751 - Immediate$0.12View Details
NANO-FIT TPA V0 BLK 2 CKT1053251002NANO-FIT TPA V0 BLK 2 CKT2032 - Immediate$0.12View Details

Nano-Fit Hand Tools

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
TOOL HAND CRIMPER 105300 SIDE0638275600TOOL HAND CRIMPER 105300 SIDE100 - Immediate
45 - Factory Stock
$427.96View Details
TOOL HAND CRIMPER 105300 SIDE0638276000TOOL HAND CRIMPER 105300 SIDE63 - Immediate$427.96View Details

Nano-Fit Extraction Tool

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
EXTRACT 20-26AWG NANO-FIT TERM0638244600EXTRACT 20-26AWG NANO-FIT TERM163 - Immediate$32.37View Details

Nano-Fit Kit

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
CONNECTOR KIT NANO FITWM25372-KITCONNECTOR KIT NANO FIT2 - Immediate$33.43View Details

Nano-Fit Cable Assemblies

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
NANO-FIT 2 CIRCUIT 150MM0451300201NANO-FIT 2 CIRCUIT 150MM2293 - Immediate$2.52View Details
NANO-FIT 2 CIRCUIT 300M0451300203NANO-FIT 2 CIRCUIT 300M3081 - Immediate$3.06View Details
NANO-FIT 2 CIRCUIT 1M0451300210NANO-FIT 2 CIRCUIT 1M2790 - Immediate$3.24View Details
NANO-FIT 4 CIRCUIT 150MM0451300401NANO-FIT 4 CIRCUIT 150MM2064 - Immediate$4.00View Details
NANO-FIT 4CIRCUIT 300MM0451300403NANO-FIT 4CIRCUIT 300MM1192 - Immediate$4.17View Details
Updated: 2025-10-20
Published: 2016-09-01