Circular Connectors – Mouser Finland

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M8, M12, & 7/8'' Circular Connectors

HARTING M8, M12, and 7/8'' Circular Connectors feature straight and angled variants with IDC or crimp connectors for field assembly or a range of pre-assembled overmolded connectors. The M8 and M12 circular connectors are mainly used for the cabling of sensors and actuators. The 7/8'' circular connectors are primarily used for DeviceNet applications and power supplies. The range of these HARTING M8, M12, and 7/8'' connectors are further enhanced with a wide selection of solutions for the device side, such as panel feed-through, PCB adapters, and gender changers.

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Types of Circular Connectors

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Contact Gender	Termination Style	IP Rating
Circular Metric Connectors M12-A 5PIN FML STRT 0.5M RECEPT 21033176505 HARTING 1: 14,35 € 1 689In Stock Restricted Availability 173On Order	Mfr. Part No. 21033176505 Mouser Part No 617-21033176505	HARTING	Circular Metric Connectors M12-A 5PIN FML STRT 0.5M RECEPT Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	1 689In Stock 173On Order	14,35 € 12,99 € 12,95 € 11,42 € View 10,90 € 10,00 € Quote	Min.: 1 Mult.: 1 Restricted Availability	Connectors	Socket (Female)	Wire	IP67
Circular Metric Connectors M12-A 4PIN FML STRT 0.5M RECEPT 21033176405 HARTING 1: 14,10 € 170In Stock Restricted Availability 318Expected 24/11/2026	Mfr. Part No. 21033176405 Mouser Part No 617-21033176405	HARTING	Circular Metric Connectors M12-A 4PIN FML STRT 0.5M RECEPT Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	170In Stock 318Expected 24/11/2026	14,10 € 12,21 € 11,58 € 10,40 € View 9,25 € 8,66 € 8,65 €	Min.: 1 Mult.: 1 Restricted Availability	Connectors	Socket (Female)	Wire	IP67
Circular Metric Connectors M12-A 8PIN FML STRT 0.5M RECEPT 21033176805 HARTING 1: 23,99 € 132In Stock Restricted Availability	Mfr. Part No. 21033176805 Mouser Part No 617-21033176805	HARTING	Circular Metric Connectors M12-A 8PIN FML STRT 0.5M RECEPT Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	132In Stock	23,99 € 20,40 € 19,13 € 18,21 € View 17,33 € 16,25 € 15,94 €	Min.: 1 Mult.: 1 Restricted Availability	Connectors	Socket (Female)	Wire	IP67
Circular Metric Connectors M8 4PIN FEMALE STRT SINGL END 0.5mRECEPT 21023576405 HARTING 1: 14,04 € 77In Stock Restricted Availability	Mfr. Part No. 21023576405 Mouser Part No 617-21023576405	HARTING	Circular Metric Connectors M8 4PIN FEMALE STRT SINGL END 0.5mRECEPT Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	77In Stock	14,04 € 12,63 € 12,38 € 12,20 € View 10,53 € 9,87 € 9,40 €	Min.: 1 Mult.: 1 Restricted Availability	Connectors	Socket (Female)	Wire	IP67
Circular Metric Connectors M12-A 12POLE RECEPT FML STRT SNG END .5M 21033532C00 HARTING 1: 31,15 € 7In Stock Restricted Availability 41On Order	Mfr. Part No. 21033532C00 Mouser Part No 617-21033532C00	HARTING	Circular Metric Connectors M12-A 12POLE RECEPT FML STRT SNG END .5M Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	7In Stock 41On Order On Order Ship Dates Mfr. No: 21033532C00 Stock: 7 Can Dispatch Immediately On Order: 10 Expected 24/11/2026 31 Expected 14/12/2026 Factory Lead Time: 7 Weeks	31,15 € 29,95 € 24,74 € 24,04 €	Min.: 1 Mult.: 1 Restricted Availability	Connectors	Socket (Female)	Wire	IP67
Standard Circular Connector 7/8" 4PIN FML STRT RECEPTACLE 21043162501 HARTING 1: 31,39 € 3In Stock Restricted Availability	Mfr. Part No. 21043162501 Mouser Part No 617-21043162501	HARTING	Standard Circular Connector 7/8" 4PIN FML STRT RECEPTACLE Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	3In Stock	31,39 € 26,68 € 25,01 € 23,81 € View 22,68 € 21,39 €	Min.: 1 Mult.: 1 Restricted Availability	Receptacles	Socket (Female)		IP67
Circular Metric Connectors M12-D 4PIN RCPT 0.5M FML STRT SNGL END 21033752400 HARTING 1: 15,85 € 14Expected 05/01/2027	Mfr. Part No. 21033752400 Mouser Part No 617-21033752400	HARTING	Circular Metric Connectors M12-D 4PIN RCPT 0.5M FML STRT SNGL END Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	14Expected 05/01/2027	15,85 € 14,21 € 13,32 € 12,69 € View 12,07 € 11,32 € 10,78 €	Min.: 1 Mult.: 1 Restricted Availability	Connectors	Socket (Female)	Wire	IP67
Circular Metric Connectors M12-A 3PIN FML STRT 0.5M RECEPT 21033176305 HARTING 1: 11,21 € 1On Order	Mfr. Part No. 21033176305 Mouser Part No 617-21033176305	HARTING	Circular Metric Connectors M12-A 3PIN FML STRT 0.5M RECEPT Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	1On Order	11,21 € 10,41 € 9,93 € 9,46 € View 9,00 € 8,45 € 8,04 € 7,79 €	Min.: 1 Mult.: 1 Restricted Availability	Connectors	Socket (Female)	Wire	IP67
Circular Metric Connectors M12-B 4PIN FML STRT SNGL END 0.5M RECEPT 21033386405 HARTING 1: 17,12 € 5Stock Available Restricted Availability	Mfr. Part No. 21033386405 Mouser Part No 617-21033386405	HARTING	Circular Metric Connectors M12-B 4PIN FML STRT SNGL END 0.5M RECEPT Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	5Stock Available More Info Available	17,12 € 15,13 € 14,33 € 13,62 € View 12,93 € 12,21 € 11,89 €	Min.: 1 Mult.: 1 Restricted Availability		Socket (Female)	Wire	IP67
Standard Circular Connector 7/8" 2PIN FML STRT RECEPTACLE 21043162301 HARTING 1: 24,83 € Non-Stocked Lead-Time 15 Weeks Restricted Availability	Mfr. Part No. 21043162301 Mouser Part No 617-21043162301	HARTING	Standard Circular Connector 7/8" 2PIN FML STRT RECEPTACLE Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	Non-Stocked Lead-Time 15 Weeks	24,83 € 21,10 € 19,79 € 18,84 € View 17,94 € 16,82 € 16,56 €	Min.: 1 Mult.: 1 Restricted Availability	Receptacles	Socket (Female)