M300 3.00mm Pitch Headers & Wire Housings

Harwin M300 3.00mm Pitch Headers and Wire Housings are a range of male and female, rectangular, fully shrouded, unsealed connectors with a temperature range of -65°C to +175°C. The M300 contains 3-contact Single Row and 6- or 10-contact Double Row connectors, capable of board-to-board, cable-to-board, and cable-to-cable configurations. Hard acid gold-plated (98% purity) for high performance and long service life, the cable contacts are barrel-crimp style and are replaceable in the housing. The cable housings have a low-profile potting wall to allow for back-potting that provides additional strain relief and some sealing.

Types of Connectors

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Results: 19
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Harwin Headers & Wire Housings M300 5+5 Pos Female Vertical Conn 107In Stock
$11.51
$9.78
$9.52
$9.28
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings M300 3+3 Pos. Male DIL Cable Housing, Jackscrew Panel Mount 22In Stock
290Expected 11/12/2026
$8.20
$6.97
$6.95
$6.76
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings M300, 3MM, 6P 2R, ML VRT HDR PCTL W/JSCR 37,845In Stock
$1.98
$1.71
$1.52
$1.39
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings 3mm Pitch Male Plug 22 AWG Straight Crimp Power Contact 25,823In Stock
21,390Expected 12/8/2026
$1.53
$1.34
$1.25
$1.19
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings M300, 3MM, 6P 2R FM VERT HDR PC TAIL 2,760In Stock
1,755Expected 12/15/2026
$8.14
$6.92
$6.49
$6.18
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings M300 10 WAY FEMAL PC TAIL DIL 3,040In Stock
$7.85
$7.12
$6.46
$6.24
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings M300, 3MM, 3P 1R FM VERT HDR PC TAIL 6,907In Stock
$7.12
$6.15
$5.76
$5.48
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings M300, FM CNT LG BORE SCKT 18-20 AWG AU 6,387In Stock
45,800On Order
$2.21
$1.94
$1.69
$1.55
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings M300, FM CNT SM BORE SCKT 22 AWG AU 4,011In Stock
3,100Expected 11/12/2026
$1.59
$1.35
$1.16
$1.10
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings M300, 3MM, 3P 1R FML HSG W/JSCREW 869In Stock
2,830Expected 11/17/2026
$4.89
$4.15
$3.89
$3.70
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings M300, 3MM, 3P 1R MALE HSG W/JSCREW 1,607In Stock
1,908Expected 1/12/2027
$8.26
$6.91
$6.82
$6.77
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings M300, 3MM, 6P 2R MALE HSG W/JSCREW 1,924In Stock
815Expected 10/30/2026
$10.81
$9.13
$9.08
$9.01
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings M300 10 WAY MALE CRIMP HSG WJS DIL 1,235In Stock
999Expected 11/17/2026
$15.07
$12.47
$10.99
$9.87
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings M300 10 WAY FEMALE CRIMP HSG WJS 34In Stock
195Expected 12/1/2026
$9.88
$8.39
$7.87
$7.49
Min.: 1
Mult.: 1
Harwin Power to the Board M300, 3MM, 3P 1R, ML VRT HDR PCTL W/JSCR 118In Stock
$15.90
$13.34
$13.30
$13.19
Min.: 1
Mult.: 1
Harwin Power to the Board M300 10 SIL VERTICAL SMT HEADER TIN 3In Stock
162On Order
$24.31
$21.18
$20.56
$18.66
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings M300, 3MM, 6P 2R FML HSG W/JSCREW
2,060On Order
$5.74
$5.02
$4.63
$4.50
Min.: 1
Mult.: 1
Harwin Headers & Wire Housings M300 10+10 Pos. Female DIL Vertical SMT Conn. (T+R)
1,936On Order
$7.44
$6.33
$5.93
$5.65
Min.: 1
Mult.: 1
Harwin Power to the Board M300 Single Ended Cable Assembly, Female, 20 AWG, 100 Pos Non-Stocked Lead-Time 15 Weeks
$13.43
$11.36
$11.35
$11.10
Min.: 1
Mult.: 1