Rectangular Cable Assemblies

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Product	Connector End A	Connector End A Pin Count	Connector End B	Gender	Cable Length	Wire Gauge - AWG
Rectangular Cable Assemblies M300 3MM F/L CA 10 150MM 20AWG DIL M300-FC31005F2-0150L Harwin 1: $54.316 87In Stock	Mfr. Part # M300-FC31005F2-0150L Mouser Part # 855-M300FC3105F2150L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 10 150MM 20AWG DIL Learn More about Harwin m300	Datasheet	87In Stock	$54.316 $46.301 $43.040 $41.514 View $39.537 $36.792 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	10 Position	No Connector	Female	150 mm	22 AWG
Rectangular Cable Assemblies M300 3mm HEX SPACER USE WITH M3 SCREW M300-MC50305M1-0150L Harwin 1: $28.338 87In Stock	Mfr. Part # M300-MC50305M1-0150L Mouser Part # 855-M300MC5305M1150L	Harwin	Rectangular Cable Assemblies M300 3mm HEX SPACER USE WITH M3 SCREW Learn More about Harwin m300	Datasheet	87In Stock	$28.338 $24.078 $22.464 $21.487 View $20.466 $19.236 $18.270	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Plug	3 Position	No Connector	Male	150 mm	18 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 03 450MM 20AWG SIL M300-FC70305F2-0450L Harwin 1: $40.372 90In Stock	Mfr. Part # M300-FC70305F2-0450L Mouser Part # 855-M300FC7305F2450L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 03 450MM 20AWG SIL Learn More about Harwin m300	Datasheet	90In Stock	$40.372 $34.322 $32.961 $31.325 View $29.974 $29.678	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	3 Position	No Connector	Female	450 mm	22 AWG
Rectangular Cable Assemblies M300 3MM M/L CA 06 450MM 18AWG DIL M300-MC30605M1-0450L Harwin 1: $47.388 85In Stock	Mfr. Part # M300-MC30605M1-0450L Mouser Part # 855-M300MC3605M1450L	Harwin	Rectangular Cable Assemblies M300 3MM M/L CA 06 450MM 18AWG DIL Learn More about Harwin m300	Datasheet	85In Stock	$47.388 $40.394 $38.319 $37.023 View $34.893 $32.093 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Plug	6 Position	No Connector	Male	450 mm	22 AWG
Rectangular Cable Assemblies M300 3MM M/L CA 06 450MM 22AWG DIL M300-MC11005M1-0150L Harwin 1: $53.767 19In Stock	Mfr. Part # M300-MC11005M1-0150L Mouser Part # 855-M300MC1105M1150L	Harwin	Rectangular Cable Assemblies M300 3MM M/L CA 06 450MM 22AWG DIL Learn More about Harwin m300	Datasheet	19In Stock	$53.767 $45.686 $43.797 $42.381 View $41.909 $39.362 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Plug	10 Position	No Connector	Male	150 mm	18 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 03 150MM 18AWG SIL M300-FC60305F2-0150L Harwin 1: $28.283 58In Stock 100Expected 11/3/2026	Mfr. Part # M300-FC60305F2-0150L Mouser Part # 855-M300FC6305F2150L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 03 150MM 18AWG SIL Learn More about Harwin m300	Datasheet	58In Stock 100Expected 11/3/2026	$28.283 $24.034 $22.519 $21.443 View $19.928 $19.906 $19.566 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	3 Position	No Connector	Female	150 mm	20 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 06 450MM 22AWG DIL M300-FC11005F2-0150L Harwin 1: $57.577 36In Stock 200On Order	Mfr. Part # M300-FC11005F2-0150L Mouser Part # 855-M300FC1105F2150L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 06 450MM 22AWG DIL Learn More about Harwin m300	Datasheet	36In Stock 200On Order On Order Ship Dates Mfr. #: M300-FC11005F2-0150L Stock: 36 Can Ship Immediately On Order: 100 Expected 1/5/2027 100 Expected 1/12/2027 Factory Lead-Time: 9 Weeks	$57.577 $48.936 $45.829 $44.346 View $40.778 $38.231	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	10 Position	No Connector	Female	150 mm	18 AWG
Rectangular Cable Assemblies M300 3MM M/L CA 06 150MM 20AWG DIL M300-MC30605M1-0150L Harwin 1: $37.473 26In Stock	Mfr. Part # M300-MC30605M1-0150L Mouser Part # 855-M300MC3605M1150L	Harwin	Rectangular Cable Assemblies M300 3MM M/L CA 06 150MM 20AWG DIL Learn More about Harwin m300	Datasheet	26In Stock	$37.473 $31.841 $29.842 $28.854 View $28.525 $27.361 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Plug	6 Position	No Connector	Male	150 mm	22 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 10 450MM 20AWG DIL M300-FC31005F2-0450L Harwin 1: $74.266 106In Stock	Mfr. Part # M300-FC31005F2-0450L Mouser Part # 855-M300FC3105F2450L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 10 450MM 20AWG DIL Learn More about Harwin m300	Datasheet	106In Stock	$74.266 $63.132 $59.926 $57.862 View $54.887 $52.054 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	10 Position	No Connector	Female	450 mm	22 AWG
Rectangular Cable Assemblies M300 3MM M/L CA 03 450MM 18AWG SIL M300-MC70305M1-0450L Harwin 1: $34.597 67In Stock	Mfr. Part # M300-MC70305M1-0450L Mouser Part # 855-M300MC7305M1450L	Harwin	Rectangular Cable Assemblies M300 3MM M/L CA 03 450MM 18AWG SIL Learn More about Harwin m300	Datasheet	67In Stock	$34.597 $29.392 $27.548 $26.636 View $25.747 $25.549 $24.726 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Plug	3 Position	No Connector	Male	450 mm	22 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 06 300MM 22AWG DIL M300-FC10605F2-0450L Harwin 1: $57.621 77In Stock	Mfr. Part # M300-FC10605F2-0450L Mouser Part # 855-M300FC1605F2450L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 06 300MM 22AWG DIL Learn More about Harwin m300	Datasheet	77In Stock	$57.621 $49.035 $45.378 $41.678 View $39.032 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	6 Position	No Connector	Female	450 mm	18 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 10 150MM 18AWG DIL M300-FC21005F2-0150L Harwin 1: $53.723 113In Stock 20Expected 12/1/2026	Mfr. Part # M300-FC21005F2-0150L Mouser Part # 855-M300FC2105F2150L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 10 150MM 18AWG DIL Learn More about Harwin m300	Datasheet	113In Stock 20Expected 12/1/2026	$53.723 $45.730 $42.458 $40.954 View $38.999 $36.397 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	10 Position	No Connector	Female	150 mm	20 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 06 150MM 18AWG DIL M300-FC20605F2-0150L Harwin 1: $42.150 154In Stock	Mfr. Part # M300-FC20605F2-0150L Mouser Part # 855-M300FC2605F2150L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 06 150MM 18AWG DIL Learn More about Harwin m300	Datasheet	154In Stock	$42.150 $35.815 $33.575 $32.752 View $31.281 $28.657 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	6 Position	No Connector	Female	150 mm	20 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 06 300MM 18AWG DIL M300-FC20605F2-0300L Harwin 1: $48.837 100In Stock	Mfr. Part # M300-FC20605F2-0300L Mouser Part # 855-M300FC2605F2300L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 06 300MM 18AWG DIL Learn More about Harwin m300	Datasheet	100In Stock	$48.837 $41.634 $39.395 $38.066 View $36.551 $33.070	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	6 Position	No Connector	Female	300 mm	20 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 03 300MM 22AWG SIL M300-FC50305F2-0450L Harwin 1: $39.976 142In Stock	Mfr. Part # M300-FC50305F2-0450L Mouser Part # 855-M300FC5305F2450L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 03 300MM 22AWG SIL Learn More about Harwin m300	Datasheet	142In Stock	$39.976 $33.971 $31.643 $30.523 View $29.656 $27.240 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	3 Position	No Connector	Female	450 mm	18 AWG
Rectangular Cable Assemblies M300 36+36 DIL VERTICAL PIN HEADER TIN M300-FC50305F2-0150L Harwin 1: $29.107 52In Stock	Mfr. Part # M300-FC50305F2-0150L Mouser Part # 855-M300FC5305F2150L	Harwin	Rectangular Cable Assemblies M300 36+36 DIL VERTICAL PIN HEADER TIN Learn More about Harwin m300	Datasheet	52In Stock	$29.107 $24.748 $22.903 $22.091 View $20.510 $19.258 $18.314 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	3 Position	No Connector	Female	150 mm	18 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 03 300MM 20AWG SIL M300-FC70305F2-0300L Harwin 1: $34.179 18In Stock	Mfr. Part # M300-FC70305F2-0300L Mouser Part # 855-M300FC7305F2300L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 03 300MM 20AWG SIL Learn More about Harwin m300	Datasheet	18In Stock	$34.179 $29.052 $27.635 $26.307 View $25.044 $23.485	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	3 Position	No Connector	Female	300 mm	22 AWG
Rectangular Cable Assemblies M300 3MM M/L CA 03 450MM 22AWG SIL M300-MC10605M1-0150L Harwin 1: $38.253 31In Stock	Mfr. Part # M300-MC10605M1-0150L Mouser Part # 855-M300MC1605M1150L	Harwin	Rectangular Cable Assemblies M300 3MM M/L CA 03 450MM 22AWG SIL Learn More about Harwin m300	Datasheet	31In Stock	$38.253 $32.499 $30.293 $29.249 View $27.866 $26.120 $25.549 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Plug	6 Position	No Connector	Male	150 mm	18 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 03 450MM 22AWG SIL M300-FC10605F2-0150L Harwin 1: $39.976 637On Order	Mfr. Part # M300-FC10605F2-0150L Mouser Part # 855-M300FC1605F2150L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 03 450MM 22AWG SIL Learn More about Harwin m300	Datasheet	637On Order On Order Ship Dates Mfr. #: M300-FC10605F2-0150L Stock: 0 On Order: 257 Expected 11/3/2026 380 Expected 11/10/2026 Factory Lead-Time: 9 Weeks	$39.976 $33.960 $31.632 $30.512 View $29.063 $27.240 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	6 Position	No Connector	Female	150 mm	18 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 10 300MM 22AWG DIL M300-FC11005F2-0450L Harwin 1: $93.447 Lead-Time 9 Weeks	Mfr. Part # M300-FC11005F2-0450L Mouser Part # 855-M300FC1105F2450L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 10 300MM 22AWG DIL Learn More about Harwin m300	Datasheet	Lead-Time 9 Weeks	$93.447 $80.140 $77.746 $71.543 View $67.546 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	10 Position	No Connector	Female	450 mm	18 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 06 150MM 22AWG DIL M300-FC10605F2-0300L Harwin 1: $46.981 262On Order	Mfr. Part # M300-FC10605F2-0300L Mouser Part # 855-M300FC1605F2300L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 06 150MM 22AWG DIL Learn More about Harwin m300	Datasheet	262On Order On Order Ship Dates Mfr. #: M300-FC10605F2-0300L Stock: 0 On Order: 210 Expected 12/1/2026 52 Expected 12/4/2026 Factory Lead-Time: 9 Weeks	$46.981 $39.998 $37.374 $36.057 View $34.333 $31.830 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	6 Position	No Connector	Female	300 mm	18 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 06 150MM 20AWG DIL M300-FC30605F2-0150L Harwin 1: $37.660 100Expected 12/3/2026	Mfr. Part # M300-FC30605F2-0150L Mouser Part # 855-M300FC3605F2150L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 06 150MM 20AWG DIL Learn More about Harwin m300	Datasheet	100Expected 12/3/2026	$37.660 $31.994 $29.820 $28.799 View $27.449 $25.736 $25.143 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	6 Position	No Connector	Female	150 mm	22 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 03 150MM 20AWG SIL M300-FC70305F2-0150L Harwin 1: $24.902 83Expected 11/3/2026	Mfr. Part # M300-FC70305F2-0150L Mouser Part # 855-M300FC7305F2150L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 03 150MM 20AWG SIL Learn More about Harwin m300	Datasheet	83Expected 11/3/2026	$24.902 $22.453 $21.597 $21.377 View $20.093 $19.203 $18.588	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	3 Position	No Connector	Female	150 mm	22 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 10 150MM 22AWG DIL M300-FC11005F2-0300L Harwin 1: $76.835 Non-Stocked Lead-Time 9 Weeks	Mfr. Part # M300-FC11005F2-0300L Mouser Part # 855-M300FC1105F2300L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 10 150MM 22AWG DIL Learn More about Harwin m300	Datasheet	Non-Stocked Lead-Time 9 Weeks	$76.835 $65.306 $61.705 $59.586 View $56.501 $54.623 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	10 Position	No Connector	Female	300 mm	18 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 10 300MM 18AWG DIL M300-FC21005F2-0300L Harwin 100: $46.487 Non-Stocked Lead-Time 9 Weeks	Mfr. Part # M300-FC21005F2-0300L Mouser Part # 855-M300FC2105F2300L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 10 300MM 18AWG DIL Learn More about Harwin m300	Datasheet	Non-Stocked Lead-Time 9 Weeks	$46.487 $43.578	Min.: 100 Mult.: 10	M300	Discrete Wire Cable Assemblies	Socket	10 Position	No Connector	Female	300 mm	20 AWG

M300 3.00mm Power Connectors

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