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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Part #

Rectangular Cable Assemblies M300 3MM F/L CA 03 450MM 20AWG SIL

M300-FC70305F2-0450L
Harwin
1: $36.32
90In Stock

Mfr. Part No.
M300-FC70305F2-0450L

Mouser Part No
855-M300FC7305F2450L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 03 450MM 20AWG SIL

Learn More

Datasheet

90In Stock

$36.32

$30.86

$28.93

$27.97

View

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 06 450MM 22AWG DIL

M300-FC11005F2-0150L
Harwin
1: $51.16
99In Stock

Mfr. Part No.
M300-FC11005F2-0150L

Mouser Part No
855-M300FC1105F2150L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 06 450MM 22AWG DIL

Learn More

Datasheet

99In Stock

$51.16

$43.62

$41.74

$40.39

View

Min.: 1
Mult.: 1

M300

Discrete Wire Cable Assemblies

Socket

10 Position

No Connector

Female

150 mm

18 AWG

Rectangular Cable Assemblies M300 3MM F/L CA 10 150MM 20AWG DIL

M300-FC31005F2-0150L
Harwin
1: $49.46
147In Stock

Mfr. Part No.
M300-FC31005F2-0150L

Mouser Part No
855-M300FC3105F2150L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 10 150MM 20AWG DIL

Learn More

Datasheet

147In Stock

$49.46

$42.17

$39.20

$37.81

View

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: $25.81
87In Stock

Mfr. Part No.
M300-MC50305M1-0150L

Mouser Part No
855-M300MC5305M1150L

Harwin

Rectangular Cable Assemblies M300 3mm HEX SPACER USE WITH M3 SCREW

Learn More

Datasheet

87In Stock

$25.81

$21.93

$20.46

$19.57

View

Min.: 1
Mult.: 1

M300

Discrete Wire Cable Assemblies

Plug

3 Position

No Connector

Male

150 mm

18 AWG

Rectangular Cable Assemblies M300 3MM M/L CA 06 450MM 18AWG DIL

M300-MC30605M1-0450L
Harwin
1: $43.15
85In Stock

Mfr. Part No.
M300-MC30605M1-0450L

Mouser Part No
855-M300MC3605M1450L

Harwin

Rectangular Cable Assemblies M300 3MM M/L CA 06 450MM 18AWG DIL

Learn More

Datasheet

85In Stock

$43.15

$36.79

$34.90

$33.72

View

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: $48.90
19In Stock

Mfr. Part No.
M300-MC11005M1-0150L

Mouser Part No
855-M300MC1105M1150L

Harwin

Rectangular Cable Assemblies M300 3MM M/L CA 06 450MM 22AWG DIL

Learn More

Datasheet

19In Stock

$48.90

$41.69

$39.89

$38.60

View

Min.: 1
Mult.: 1

M300

Discrete Wire Cable Assemblies

Plug

10 Position

No Connector

Male

150 mm

18 AWG

Rectangular Cable Assemblies M300 3MM M/L CA 06 150MM 20AWG DIL

M300-MC30605M1-0150L
Harwin
1: $34.12
26In Stock

Mfr. Part No.
M300-MC30605M1-0150L

Mouser Part No
855-M300MC3605M1150L

Harwin

Rectangular Cable Assemblies M300 3MM M/L CA 06 150MM 20AWG DIL

Learn More

Datasheet

26In Stock

$34.12

$29.00

$27.18

$26.28

View

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 03 150MM 18AWG SIL

M300-FC60305F2-0150L
Harwin
1: $25.75
59In Stock
100Expected 03/11/2026

Mfr. Part No.
M300-FC60305F2-0150L

Mouser Part No
855-M300FC6305F2150L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 03 150MM 18AWG SIL

Learn More

Datasheet

59In Stock

100Expected 03/11/2026

$25.75

$21.89

$20.51

$19.53

View

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 10 450MM 20AWG DIL

M300-FC31005F2-0450L
Harwin
1: $67.63
106In Stock

Mfr. Part No.
M300-FC31005F2-0450L

Mouser Part No
855-M300FC3105F2450L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 10 450MM 20AWG DIL

Learn More

Datasheet

106In Stock

$67.63

$57.50

$54.58

$52.70

View

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: $31.51
67In Stock

Mfr. Part No.
M300-MC70305M1-0450L

Mouser Part No
855-M300MC7305M1450L

Harwin

Rectangular Cable Assemblies M300 3MM M/L CA 03 450MM 18AWG SIL

Learn More

Datasheet

67In Stock

$31.51

$26.77

$25.09

$24.26

View

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 10 300MM 22AWG DIL

M300-FC11005F2-0450L
Harwin
1: $85.40
37In Stock

Mfr. Part No.
M300-FC11005F2-0450L

Mouser Part No
855-M300FC1105F2450L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 10 300MM 22AWG DIL

Learn More

Datasheet

37In Stock

$85.40

$72.58

$70.81

$68.44

View

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 300MM 22AWG DIL

M300-FC10605F2-0450L
Harwin
1: $52.48
77In Stock

Mfr. Part No.
M300-FC10605F2-0450L

Mouser Part No
855-M300FC1605F2450L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 06 300MM 22AWG DIL

Learn More

Datasheet

77In Stock

$52.48

$44.66

$41.33

$37.96

$35.54

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 06 150MM 18AWG DIL

M300-FC20605F2-0150L
Harwin
1: $38.28
154In Stock

Mfr. Part No.
M300-FC20605F2-0150L

Mouser Part No
855-M300FC2605F2150L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 06 150MM 18AWG DIL

Learn More

Datasheet

154In Stock

$38.28

$32.52

$30.49

$29.47

View

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 450MM 18AWG DIL

M300-FC30605F2-0450L
Harwin
1: $48.55
109In Stock

Mfr. Part No.
M300-FC30605F2-0450L

Mouser Part No
855-M300FC3605F2450L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 06 450MM 18AWG DIL

Learn More

Datasheet

109In Stock

$48.55

$41.33

$38.38

$37.03

View

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 03 300MM 22AWG SIL

M300-FC50305F2-0450L
Harwin
1: $36.23
142In Stock

Mfr. Part No.
M300-FC50305F2-0450L

Mouser Part No
855-M300FC5305F2450L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 03 300MM 22AWG SIL

Learn More

Datasheet

142In Stock

$36.23

$30.77

$28.85

$27.89

View

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 10 150MM 18AWG DIL

M300-FC21005F2-0150L
Harwin
1: $48.93
33In Stock
100Expected 01/12/2026

Mfr. Part No.
M300-FC21005F2-0150L

Mouser Part No
855-M300FC2105F2150L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 10 150MM 18AWG DIL

Learn More

Datasheet

33In Stock

100Expected 01/12/2026

$48.93

$41.65

$38.67

$37.30

View

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 20AWG DIL

M300-FC30605F2-0150L
Harwin
1: $34.30
25In Stock

Mfr. Part No.
M300-FC30605F2-0150L

Mouser Part No
855-M300FC3605F2150L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 06 150MM 20AWG DIL

Learn More

Datasheet

25In Stock

$34.30

$29.14

$27.16

$26.23

View

Min.: 1
Mult.: 1

M300

Discrete Wire Cable Assemblies

Socket

6 Position

No Connector

Female

150 mm

22 AWG

Rectangular Cable Assemblies M300 36+36 DIL VERTICAL PIN HEADER TIN

M300-FC50305F2-0150L
Harwin
1: $26.51
76In Stock

Mfr. Part No.
M300-FC50305F2-0150L

Mouser Part No
855-M300FC5305F2150L

Harwin

Rectangular Cable Assemblies M300 36+36 DIL VERTICAL PIN HEADER TIN

Learn More

Datasheet

76In Stock

$26.51

$22.54

$20.86

$20.12

View

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: $30.78
20In Stock

Mfr. Part No.
M300-FC70305F2-0300L

Mouser Part No
855-M300FC7305F2300L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 03 300MM 20AWG SIL

Learn More

Datasheet

20In Stock

$30.78

$26.16

$24.52

$23.70

View

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: $34.84
33In Stock

Mfr. Part No.
M300-MC10605M1-0150L

Mouser Part No
855-M300MC1605M1150L

Harwin

Rectangular Cable Assemblies M300 3MM M/L CA 03 450MM 22AWG SIL

Learn More

Datasheet

33In Stock

$34.84

$29.60

$27.59

$26.64

View

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: $36.41
637On Order

Mfr. Part No.
M300-FC10605F2-0150L

Mouser Part No
855-M300FC1605F2150L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 03 450MM 22AWG SIL

Learn More

Datasheet

637On Order

$36.41

$30.93

$28.81

$27.79

View

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 150MM 22AWG DIL

M300-FC10605F2-0300L
Harwin
1: $42.45
262On Order

Mfr. Part No.
M300-FC10605F2-0300L

Mouser Part No
855-M300FC1605F2300L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 06 150MM 22AWG DIL

Learn More

Datasheet

262On Order

$42.45

$36.08

$34.58

$33.46

View

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 300MM 18AWG DIL

M300-FC20605F2-0300L
Harwin
1: $44.48
100Expected 08/10/2026

Mfr. Part No.
M300-FC20605F2-0300L

Mouser Part No
855-M300FC2605F2300L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 06 300MM 18AWG DIL

Learn More

Datasheet

100Expected 08/10/2026

$44.48

$37.92

$35.88

$34.67

View

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 150MM 20AWG SIL

M300-FC70305F2-0150L
Harwin
1: $26.57
83Expected 03/11/2026

Mfr. Part No.
M300-FC70305F2-0150L

Mouser Part No
855-M300FC7305F2150L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 03 150MM 20AWG SIL

Learn More

Datasheet

83Expected 03/11/2026

$26.57

$22.57

$21.02

$20.20

View

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: $67.76
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
M300-FC11005F2-0300L

Mouser Part No
855-M300FC1105F2300L

Harwin

Rectangular Cable Assemblies M300 3MM F/L CA 10 150MM 22AWG DIL

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

$67.76

$57.61

$55.39

$53.54

View

Min.: 1
Mult.: 1

M300

Discrete Wire Cable Assemblies

Socket

10 Position

No Connector

Female

300 mm

18 AWG

M300 3.00mm Power Connectors

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