M300 3.00mm Power Connectors

Harwin M300 3.00mm Power Connectors are a range of high-reliability, high-performance connectors for aerospace, defense, industrial, or other harsh environment applications. With a compact power connection of up to 10A per contact, the M300 connectors achieve a lightweight, robust solution with a proven track record under extreme conditions. Fitted stainless steel jackscrews guard against vibration and shock, while a four-finger contact design maintains electrical continuity. Low outgassing properties meet NASA requirements for vacuum or space usage. Harwin M300 3.00mm Power Connectors operate in a temperature range of -65°C to +175°C and withstand 1000 mating cycles.

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Qty. RoHS ECAD Model Series
Product
Connector End A
Connector End A Pin Count
Connector End B
Gender
Cable Length
Wire Gauge - AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 10 150MM 18AWG DIL
Datasheet
73In Stock
100Expected 3/31/2026
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 10 Position No Connector Female 150 mm 18 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 03 450MM 22AWG SIL
Datasheet
106In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 3 Position No Connector Female 450 mm 22 AWG
Harwin Rectangular Cable Assemblies 3MM M/L CA 06 450MM 22AWG DIL
Datasheet
86In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Plug 6 Position No Connector Male 450 mm 22 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 06 450MM 18AWG DIL
Datasheet
114In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 6 Position No Connector Female 450 mm 18 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 06 300MM 18AWG DIL
Datasheet
61In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 6 Position No Connector Female 300 mm 18 AWG
Harwin Rectangular Cable Assemblies 3MM M/L CA 06 150MM 22AWG DIL
Datasheet
33In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Plug 6 Position No Connector Male 150 mm 22 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 03 150MM 20AWG SIL
Datasheet
31In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 3 Position No Connector Female 150 mm 20 AWG
Harwin Rectangular Cable Assemblies 3MM M/L CA 10 150MM 18AWG DIL
Datasheet
35In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Plug 10 Position No Connector Male 150 mm 18 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 06 450MM 22AWG DIL
Datasheet
45In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 6 Position No Connector Female 450 mm 22 AWG
Harwin Rectangular Cable Assemblies 3MM M/L CA 03 450MM 22AWG SIL
Datasheet
82In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Plug 3 Position No Connector Male 450 mm 22 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 10 450MM 18AWG DIL
Datasheet
106In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 10 Position No Connector Female 450 mm 18 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 10 150MM 22AWG DIL
Datasheet
157In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 10 Position No Connector Female 150 mm 22 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 03 150MM 18AWG SIL
Datasheet
124In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 3 Position No Connector Female 150 mm 18 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 03 150MM 22AWG SIL
Datasheet
106In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 3 Position No Connector Female 150 mm 22 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 06 150MM 18AWG DIL
Datasheet
23In Stock
100Expected 3/31/2026
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 6 Position No Connector Female 150 mm 18 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 10 150MM 20AWG DIL
Datasheet
15In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 10 Position No Connector Female 150 mm 20 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 06 300MM 20AWG DIL
Datasheet
37In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 6 Position No Connector Female 300 mm 20 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 10 450MM 22AWG DIL
Datasheet
7In Stock
100Expected 2/11/2026
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 10 Position No Connector Female 450 mm 22 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 06 150MM 22AWG DIL
Datasheet
43In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 6 Position No Connector Female 150 mm 22 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 03 300MM 20AWG SIL
Datasheet
34In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 3 Position No Connector Female 300 mm 20 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 03 300MM 22AWG SIL
Datasheet
35In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 3 Position No Connector Female 300 mm 22 AWG
Harwin Rectangular Cable Assemblies 3MM M/L CA 06 150MM 18AWG DIL
Datasheet
65In Stock
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Plug 6 Position No Connector Male 150 mm 18 AWG
Harwin Rectangular Cable Assemblies 3MM M/L CA 03 150MM 18AWG SIL
Datasheet
1In Stock
100On Order
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Plug 3 Position No Connector Male 150 mm 18 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 06 150MM 20AWG DIL
Datasheet
96On Order
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 6 Position No Connector Female 150 mm 20 AWG
Harwin Rectangular Cable Assemblies 3MM F/L CA 03 450MM 18AWG SIL
Datasheet
94Expected 3/24/2026
Min.: 1
Mult.: 1

M300 Discrete Wire Cable Assemblies Socket 3 Position No Connector Female 450 mm 18 AWG