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PowerWize 3.40mm Interconnects

Molex PowerWize 3.40mm Interconnects leverage Coeur socket technology to deliver power efficiency crucial for cost management. This high-power series features free-hanging and panel-mount housings and right-angle or vertical pin-in-paste reflow SMT-capable headers. Two mechanically keyed color options (black and white/natural) prevent mismating, and the connectors are touch-proof per UL 60950 for safety protection during handling. These interconnects offer optimal current-carrying capacity up to 75A with multiple contact beams that ensure low contact resistance, minimal heat generation, and low voltage drop. Positive-locking headers and receptacles provide secure mating and tactile feedback, and the headers support both pin-and-paste SMT reflow and wave solder processing. Typical applications include industrial automation, telecommunications, and networking.

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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.
Power to the Board PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Right Angle Header, Tape and Reel 221887-3422 Molex 1: $14.76 63In Stock 270Expected 10/15/2026 New Product	Mfr. Part # 221887-3422 Mouser Part # 538-221887-3422 New Product	Molex	Power to the Board PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Right Angle Header, Tape and Reel Learn More about Molex powerwize 3 40mm interconnects	Datasheet	63In Stock 270Expected 10/15/2026	Cut Tape $14.76 $13.09 $12.59 $11.25 Reel $11.25 $11.05	Min.: 1 Mult.: 1 : 90
Terminals PowerWize 3.40mm Silver Plated Copper Alloy Crimp Socket, 10 AWG, Tray 221616-3002 Molex 1: $8.48 354In Stock New Product	Mfr. Part # 221616-3002 Mouser Part # 538-221616-3002 New Product	Molex	Terminals PowerWize 3.40mm Silver Plated Copper Alloy Crimp Socket, 10 AWG, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	354In Stock	$8.48 $7.21 $6.76 $6.44 View $6.08 $5.42 $5.20	Min.: 1 Mult.: 1
Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Right Angle Header, Tray 221887-3322 Molex 1: $13.58 193In Stock New Product	Mfr. Part # 221887-3322 Mouser Part # 538-221887-3322 New Product	Molex	Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Right Angle Header, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	193In Stock	$13.58 $10.86 $9.69 $9.68 View $8.75 $8.33	Min.: 1 Mult.: 1
Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Vertical Header, Tray 221888-3321 Molex 1: $8.65 520In Stock 648Expected 10/21/2026 New Product	Mfr. Part # 221888-3321 Mouser Part # 538-221888-3321 New Product	Molex	Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Vertical Header, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	520In Stock 648Expected 10/21/2026	$8.65 $8.40 $6.72 $6.22 View $6.21 $6.14 $5.31	Min.: 1 Mult.: 1
Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Vertical Header, Tray 221888-3322 Molex 1: $8.65 411In Stock New Product	Mfr. Part # 221888-3322 Mouser Part # 538-221888-3322 New Product	Molex	Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Vertical Header, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	411In Stock	$8.65 $8.40 $6.72 $6.22 View $6.21 $5.57 $5.31	Min.: 1 Mult.: 1
Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Mechanical Keying Option 1, Color Coded Black, Receptacle Housing, Bag 221597-3001 Molex 1: $0.92 711In Stock New Product	Mfr. Part # 221597-3001 Mouser Part # 538-221597-3001 New Product	Molex	Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Mechanical Keying Option 1, Color Coded Black, Receptacle Housing, Bag Learn More about Molex powerwize 3 40mm interconnects	Datasheet	711In Stock	$0.92 $0.78 $0.696 $0.625 View $0.595 $0.578 $0.558 $0.523 $0.522	Min.: 1 Mult.: 1
Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Mechanical Keying Option 2, Color Coded Natural, Receptacle Housing, Bag 221597-3002 Molex 1: $0.92 864In Stock New Product	Mfr. Part # 221597-3002 Mouser Part # 538-221597-3002 New Product	Molex	Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Mechanical Keying Option 2, Color Coded Natural, Receptacle Housing, Bag Learn More about Molex powerwize 3 40mm interconnects	Datasheet	864In Stock	$0.92 $0.78 $0.696 $0.625 View $0.595 $0.578 $0.558 $0.523 $0.522	Min.: 1 Mult.: 1
Terminals PowerWize 3.40mm Silver Plated Copper Alloy Crimp Socket, 8 AWG, Tray 221616-3001 Molex 1: $8.40 141In Stock 1,344Expected 2/1/2027 New Product	Mfr. Part # 221616-3001 Mouser Part # 538-221616-3001 New Product	Molex	Terminals PowerWize 3.40mm Silver Plated Copper Alloy Crimp Socket, 8 AWG, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	141In Stock 1,344Expected 2/1/2027	$8.40 $7.14 $6.69 $6.38 View $6.02 $5.57 $5.37 $5.15	Min.: 1 Mult.: 1
Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Right Angle Header, Tray 221887-3321 Molex 1: $13.58 110In Stock New Product	Mfr. Part # 221887-3321 Mouser Part # 538-221887-3321 New Product	Molex	Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Right Angle Header, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	110In Stock	$13.58 $10.86 $9.69 $9.68 View $8.75 $8.33	Min.: 1 Mult.: 1
Power to the Board PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Right Angle Header, Tape and Reel 221887-3421 Molex 1: $14.76 360Expected 10/15/2026 New Product	Mfr. Part # 221887-3421 Mouser Part # 538-221887-3421 New Product	Molex	Power to the Board PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Right Angle Header, Tape and Reel Learn More about Molex powerwize 3 40mm interconnects	Datasheet	360Expected 10/15/2026	Cut Tape $14.76 $13.09 $12.59 $11.25 Reel $11.25 $11.05	Min.: 1 Mult.: 1 : 90
Power to the Board PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Vertical Header, Tape and Reel 221888-3421 Molex 1: $11.31 270In Stock 90Expected 10/15/2026 New Product	Mfr. Part # 221888-3421 Mouser Part # 538-221888-3421 New Product	Molex	Power to the Board PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Vertical Header, Tape and Reel Learn More about Molex powerwize 3 40mm interconnects	Datasheet	270In Stock 90Expected 10/15/2026	Cut Tape $11.31 $10.03 $9.64 $8.75 Reel $8.75 $8.73	Min.: 1 Mult.: 1 : 90
Power to the Board PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Vertical Header, Tape and Reel 221888-3422 Molex 1: $11.31 270In Stock 90Expected 10/13/2026 New Product	Mfr. Part # 221888-3422 Mouser Part # 538-221888-3422 New Product	Molex	Power to the Board PowerWize 3.40mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Vertical Header, Tape and Reel Learn More about Molex powerwize 3 40mm interconnects	Datasheet	270In Stock 90Expected 10/13/2026	Cut Tape $11.31 $10.03 $9.64 $9.26 Reel $9.26 View $8.73 $7.27	Min.: 1 Mult.: 1 : 90
Terminals PowerWize 3.40mm Silver Plated Copper Alloy Crimp Pin, 8 AWG, Tray 2281920001 Molex 1: $5.54 900Expected 10/16/2026 New Product	Mfr. Part # 2281920001 Mouser Part # 538-2281920001 New Product	Molex	Terminals PowerWize 3.40mm Silver Plated Copper Alloy Crimp Pin, 8 AWG, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	900Expected 10/16/2026	$5.54 $5.04 $4.77 $4.66 View $4.44 $3.88 $3.77	Min.: 1 Mult.: 1
Terminals PowerWize 3.40mm Silver Plated Copper Alloy Crimp Pin, 10 AWG, Tray 2281920002 Molex 1: $5.54 900Expected 10/16/2026 New Product	Mfr. Part # 2281920002 Mouser Part # 538-2281920002 New Product	Molex	Terminals PowerWize 3.40mm Silver Plated Copper Alloy Crimp Pin, 10 AWG, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	900Expected 10/16/2026	$5.54 $5.04 $4.77 $4.66 View $4.44 $3.88 $3.77	Min.: 1 Mult.: 1
Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Mechanical Keying Option 1, Color Coded Black, Plug Housing, Bag 2281860001 Molex 1: $1.05 600Expected 10/16/2026 New Product	Mfr. Part # 2281860001 Mouser Part # 538-2281860001 New Product	Molex	Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Mechanical Keying Option 1, Color Coded Black, Plug Housing, Bag Learn More about Molex powerwize 3 40mm interconnects	Datasheet	600Expected 10/16/2026	$1.05 $0.89 $0.854 $0.799 View $0.727 $0.654 $0.596 $0.558 $0.546	Min.: 1 Mult.: 1
Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Mechanical Keying Option 2, Color Coded Natural, Plug Housing, Bag 2281860002 Molex 1: $1.05 600Expected 10/16/2026 New Product	Mfr. Part # 2281860002 Mouser Part # 538-2281860002 New Product	Molex	Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Mechanical Keying Option 2, Color Coded Natural, Plug Housing, Bag Learn More about Molex powerwize 3 40mm interconnects	Datasheet	600Expected 10/16/2026	$1.05 $0.89 $0.854 $0.799 View $0.727 $0.654 $0.596 $0.558 $0.546	Min.: 1 Mult.: 1
Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Mechanical Keying Option 1, Color Coded Black, Plug Housing with Panel Mount Ears, Bag 2281870001 Molex 1: $1.08 600Expected 10/16/2026 New Product	Mfr. Part # 2281870001 Mouser Part # 538-2281870001 New Product	Molex	Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Mechanical Keying Option 1, Color Coded Black, Plug Housing with Panel Mount Ears, Bag Learn More about Molex powerwize 3 40mm interconnects	Datasheet	600Expected 10/16/2026	$1.08 $0.923 $0.885 $0.829 View $0.753 $0.678 $0.618 $0.579 $0.566	Min.: 1 Mult.: 1
Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Mechanical Keying Option 2, Color Coded Natural, Plug Housing with Panel Mount Ears, Bag 2281870002 Molex 1: $1.08 600Expected 10/16/2026 New Product	Mfr. Part # 2281870002 Mouser Part # 538-2281870002 New Product	Molex	Headers & Wire Housings PowerWize 3.40mm, 2-circuit, Mechanical Keying Option 2, Color Coded Natural, Plug Housing with Panel Mount Ears, Bag Learn More about Molex powerwize 3 40mm interconnects	Datasheet	600Expected 10/16/2026	$1.08 $0.923 $0.885 $0.829 View $0.753 $0.678 $0.618 $0.579 $0.566	Min.: 1 Mult.: 1

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