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 (CAD) 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 03 150MM 18AWG SIL M300-FC60305F2-0150L Harwin 1: $37.09 92In Stock	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	92In Stock	$37.09 $31.52 $29.53 $28.12 View $26.14 $26.11 $25.66 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 03 450MM 20AWG SIL M300-FC70305F2-0450L Harwin 1: $52.95 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	$52.95 $45.01 $43.23 $41.08 View $39.31 $38.92	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	3 Position	No Connector	Female	450 mm	22 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 10 150MM 20AWG DIL M300-FC31005F2-0150L Harwin 1: $71.24 54In 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	54In Stock	$71.24 $60.72 $56.43 $54.45 View $51.84 $48.27 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 F/L CA 06 150MM 18AWG DIL M300-FC20605F2-0150L Harwin 1: $55.12 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	$55.12 $46.83 $43.91 $42.18 View $40.32 $37.58 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 M/L CA 06 450MM 22AWG DIL M300-MC11005M1-0150L Harwin 1: $70.52 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	$70.52 $59.92 $57.44 $55.58 View $54.96 $51.62 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 06 450MM 22AWG DIL M300-FC11005F2-0150L Harwin 1: $75.51 325On 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	325On Order On Order Ship Dates Mfr. #: M300-FC11005F2-0150L Stock: 0 On Order: 95 Expected 2027-01-05 100 Expected 2027-01-12 130 Expected 2027-02-04 Factory Lead-Time: 9 Weeks	$75.51 $64.18 $60.11 $58.16 View $53.48 $50.14	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: $49.15 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	$49.15 $41.76 $39.14 $37.84 View $37.41 $35.88 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 M/L CA 06 450MM 18AWG DIL M300-MC30605M1-0450L Harwin 1: $62.15 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	$62.15 $52.98 $49.92 $48.18 View $45.76 $42.09 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 03 450MM 18AWG SIL M300-MC70305M1-0450L Harwin 1: $45.37 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	$45.37 $38.55 $36.13 $34.93 View $33.77 $33.51 $32.43 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 03 450MM 22AWG SIL M300-FC10605F2-0150L Harwin 1: $53.99 247In Stock 380On 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	247In Stock 380On Order On Order Ship Dates Mfr. #: M300-FC10605F2-0150L Stock: 247 Can Ship Immediately On Order: 100 Expected 2026-11-06 280 Expected 2026-12-17 Factory Lead-Time: 9 Weeks	$53.99 $45.86 $42.60 $41.08 View $39.12 $36.68 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 06 300MM 22AWG DIL M300-FC10605F2-0450L Harwin 1: $75.57 71In 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	71In Stock	$75.57 $64.31 $59.52 $54.66 View $51.19 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: $70.46 113In Stock 20Expected 2026-12-01	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 2026-12-01	$70.46 $59.98 $55.68 $53.71 View $51.15 $47.74 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 300MM 18AWG DIL M300-FC20605F2-0300L Harwin 1: $64.05 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	$64.05 $54.60 $51.67 $49.92 View $47.94 $43.37	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 10 450MM 20AWG DIL M300-FC31005F2-0450L Harwin 1: $97.96 70In 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	70In Stock	$97.96 $85.52 $79.62 $76.95 View $71.27 $69.61 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 F/L CA 03 300MM 22AWG SIL M300-FC50305F2-0450L Harwin 1: $52.43 139In 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	139In Stock	$52.43 $44.55 $41.50 $40.03 View $38.89 $35.73 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	3 Position	No Connector	Female	450 mm	18 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 03 150MM 20AWG SIL M300-FC70305F2-0150L Harwin 1: $32.66 83In Stock	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	83In Stock	$32.66 $29.45 $28.32 $28.04 View $26.35 $25.19 $24.38	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	3 Position	No Connector	Female	150 mm	22 AWG
Rectangular Cable Assemblies M300 3mm HEX SPACER USE WITH M3 SCREW M300-MC50305M1-0150L Harwin 1: $37.31 80In 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	80In Stock	$37.31 $31.69 $29.48 $28.30 View $26.94 $25.30 $24.06 Quote	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 06 150MM 22AWG DIL M300-FC10605F2-0300L Harwin 1: $63.60 2In Stock 260On 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	2In Stock 260On Order On Order Ship Dates Mfr. #: M300-FC10605F2-0300L Stock: 2 Can Ship Immediately On Order: 50 Expected 2026-11-24 210 Expected 2026-12-01 Factory Lead-Time: 9 Weeks	$63.60 $54.10 $50.33 $48.54 View $46.22 $43.08 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	6 Position	No Connector	Female	300 mm	18 AWG
Rectangular Cable Assemblies M300 36+36 DIL VERTICAL PIN HEADER TIN M300-FC50305F2-0150L Harwin 1: $38.17 52In Stock 100Expected 2027-01-05	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 100Expected 2027-01-05	$38.17 $32.46 $30.04 $28.97 View $26.90 $25.26 $24.02 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: $44.83 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	$44.83 $38.10 $36.24 $34.50 View $32.85 $30.80	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: $50.17 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	$50.17 $42.62 $39.73 $38.36 View $36.55 $34.26 $33.51 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 10 300MM 22AWG DIL M300-FC11005F2-0450L Harwin 1: $122.56 91Expected 2027-01-12	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	91Expected 2027-01-12	$122.56 $105.11 $101.97 $93.83 View $88.59 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 20AWG DIL M300-FC30605F2-0150L Harwin 1: $49.39 100Expected 2027-01-05	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 2027-01-05	$49.39 $41.96 $39.11 $37.77 View $36.00 $33.75 $32.98 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 06 450MM 18AWG DIL M300-FC30605F2-0450L Harwin 1: $69.91 100Expected 2027-02-02	Mfr. Part # M300-FC30605F2-0450L Mouser Part # 855-M300FC3605F2450L	Harwin	Rectangular Cable Assemblies M300 3MM F/L CA 06 450MM 18AWG DIL Learn More about Harwin m300	Datasheet	100Expected 2027-02-02	$69.91 $59.52 $55.27 $53.32 View $53.11 $47.36 Quote	Min.: 1 Mult.: 1	M300	Discrete Wire Cable Assemblies	Socket	6 Position	No Connector	Female	450 mm	22 AWG
Rectangular Cable Assemblies M300 3MM F/L CA 10 150MM 22AWG DIL M300-FC11005F2-0300L Harwin 100: $74.10 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	$74.10 $71.64 View Quote	Min.: 100 Mult.: 10	M300	Discrete Wire Cable Assemblies	Socket	10 Position	No Connector	Female	300 mm	18 AWG

M300 3.00mm Power Connectors

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M300 3.00mm Power Connectors

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