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.

Results: 16
Select Image Part # Mfr. Description Datasheet Availability Pricing (JPY) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Product Type Number of Positions Pitch Number of Rows Row Spacing Mounting Style Termination Style Mounting Angle Contact Gender Contact Plating Termination Post Length Series Wire Gauge Minimum Operating Temperature Maximum Operating Temperature Packaging
Harwin Headers & Wire Housings M300 10+10 Pos. Female DIL Vertical SMT Conn. (T+R) 775In Stock
Min.: 1
Mult.: 1
M300
Harwin Headers & Wire Housings M300 3+3 Pos. Male DIL Cable Housing, Jackscrew Panel Mount 52In Stock
290Expected 11/3/2026
Min.: 1
Mult.: 1

M300
Harwin Headers & Wire Housings M300 5+5 Pos Female Vertical Conn 212In Stock
Min.: 1
Mult.: 1
M300
Harwin Headers & Wire Housings M300, 3MM, 6P 2R FM VERT HDR PC TAIL 3,716In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 6 Position 3 mm (0.118 in) 2 Row Cable Mount / Free Hanging Crimp Straight Socket (Female) M300 22 AWG to 18 AWG - 65 C + 175 C
Harwin Headers & Wire Housings M300, 3MM, 3P 1R FM VERT HDR PC TAIL 7,990In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 3 Position 3 mm (0.118 in) 1 Row Cable Mount / Free Hanging Crimp Straight Socket (Female) M300 22 AWG to 18 AWG - 65 C + 175 C
Harwin Headers & Wire Housings M300, 3MM, 3P 1R MALE HSG W/JSCREW 3,564In Stock
Min.: 1
Mult.: 1

Headers Plug Housing 3 Position 3 mm (0.118 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold M300 - 65 C + 175 C Tube
Harwin Headers & Wire Housings M300, 3MM, 6P 2R, ML VRT HDR PCTL W/JSCR 6,139In Stock
35,100Expected 9/29/2026
Min.: 1
Mult.: 1

Contacts 3 mm (0.118 in) Crimp Socket (Female) Gold M300 20 AWG to 18 AWG - 65 C + 175 C
Harwin Headers & Wire Housings M300, FM CNT LG BORE SCKT 18-20 AWG AU 4,464In Stock
31,000On Order
Min.: 1
Mult.: 1

Contacts 3 mm (0.118 in) Crimp Socket (Female) Gold M300 22 AWG - 65 C + 175 C
Harwin Headers & Wire Housings M300, FM CNT SM BORE SCKT 22 AWG AU 4,368In Stock
3,100Expected 11/3/2026
Min.: 1
Mult.: 1

Contacts 1 Position 3 mm (0.118 in) Crimp Pin (Male) Gold M300 20 AWG to 18 AWG - 65 C + 175 C
Harwin Headers & Wire Housings 3mm Pitch Male Plug 22 AWG Straight Crimp Power Contact 12,615In Stock
27,900Expected 9/8/2026
Min.: 1
Mult.: 1

Contacts 3 mm (0.118 in) Crimp Pin (Male) Gold M300 22 AWG - 65 C + 175 C
Harwin Headers & Wire Housings M300 10 WAY FEMAL PC TAIL DIL 884In Stock
2,575On Order
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 10 Position 3 mm (0.118 in) 2 Row 3 mm (0.118 in) Cable Mount / Free Hanging Crimp Straight Socket (Female) M300 22 AWG to 18 AWG - 65 C + 175 C
Harwin Headers & Wire Housings M300, 3MM, 6P 2R MALE HSG W/JSCREW 481In Stock
2,628Expected 11/17/2026
Min.: 1
Mult.: 1

Headers Plug Housing 6 Position 3 mm (0.118 in) 2 Row Through Hole Solder Pin Straight Pin (Male) Gold M300 - 65 C + 175 C
Harwin Headers & Wire Housings M300 10 WAY MALE CRIMP HSG WJS DIL 1,441In Stock
999Expected 11/17/2026
Min.: 1
Mult.: 1

Headers Shrouded 10 Position 3 mm (0.118 in) 2 Row 3 mm (0.118 in) Through Hole Solder Pin Straight Pin (Male) Gold 3.2 mm (0.126 in) M300 - 65 C + 175 C
Harwin Headers & Wire Housings M300 10 WAY FEMALE CRIMP HSG WJS 214In Stock
Min.: 1
Mult.: 1

Wire Housings Plug Housing 10 Position 3 mm (0.118 in) 2 Row 3 mm (0.118 in) Cable Mount / Free Hanging Crimp Straight Pin (Male) M300 22 AWG to 18 AWG - 65 C + 175 C
Harwin Headers & Wire Housings M300, 3MM, 6P 2R FML HSG W/JSCREW
728On Order
Min.: 1
Mult.: 1

Wire Housings Plug Housing 6 Position 3 mm (0.118 in) 2 Row Cable Mount / Free Hanging Crimp Straight Pin (Male) M300 22 AWG to 18 AWG - 65 C + 175 C
Harwin Headers & Wire Housings M300, 3MM, 3P 1R FML HSG W/JSCREW
4,227On Order
Min.: 1
Mult.: 1

Headers Plug Housing 3 Position 3 mm (0.118 in) 1 Row Cable Mount / Free Hanging Crimp Straight Pin (Male) M300 22 AWG to 18 AWG - 65 C + 175 C