Audio Transformers / Signal Transformers

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M12 Receptacles with Integrated Magnetics

HARTING M12 Receptacles with Integrated Magnetics combine the functions of an IP65/IP67 connector and a transformer with no increase in size. These M12 connectors are designed for systems where Ethernet-capable components are connected to networks. They protect chips in devices through galvanic separation and ensure the decoupling of the ground potential between the cabling and the terminal. HARTING M12 magnetics receptacles save up to 30% board space by doing away with additional components such as capacitors and resistors. The devices provide power transfer via PoE+ and better signal integrity because the connector and transformer work together.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Termination Style	Frequency Range	Isolation Voltage	Minimum Operating Temperature	Maximum Operating Temperature	Number of Channels
Audio Transformers / Signal Transformers M12 TRANS 10GBASE-T X STR 21033812818 HARTING 1: $54.583 60In Stock	Mfr. Part # 21033812818 Mouser Part # 617-21033812818	HARTING	Audio Transformers / Signal Transformers M12 TRANS 10GBASE-T X STR Learn More about HARTING m12 magnetics connectors	Datasheet	60In Stock	$54.583 $49.103 $47.052 $43.725	Min.: 1 Mult.: 1	PoE Transformers	SMD/SMT	10 MHz to 100 MHz	1.5 kV	- 40 C	+ 85 C	Quad
Audio Transformers / Signal Transformers M12 TRANS 1000 BASE-T X STR 21033812815 HARTING 60: $37.892 Non-Stocked Lead-Time 30 Weeks	Mfr. Part # 21033812815 Mouser Part # 617-21033812815	HARTING	Audio Transformers / Signal Transformers M12 TRANS 1000 BASE-T X STR Learn More about HARTING m12 magnetics connectors	Datasheet	Non-Stocked Lead-Time 30 Weeks	$37.892 View Quote	Min.: 60 Mult.: 60	PoE Transformers	SMD/SMT	10 MHz to 100 MHz	1.5 kV	- 40 C	+ 85 C	Quad
Audio Transformers / Signal Transformers M12 TRANS 1000BASE-T X ANG W/ POE+ 21033814822 HARTING 1: $46.266 28In Stock	Mfr. Part # 21033814822 Mouser Part # 617-21033814822	HARTING	Audio Transformers / Signal Transformers M12 TRANS 1000BASE-T X ANG W/ POE+ Learn More about HARTING m12 magnetics connectors	Datasheet	28In Stock	$46.266 $46.255 $44.181 $43.828 View Quote	Min.: 1 Mult.: 1	LAN Transformers	SMD/SMT	10 MHz to 100 MHz	1.5 kV	- 40 C	+ 85 C	Quad
Audio Transformers / Signal Transformers M12 TRANS RECPT REAR MOUNTING KIT 21033012007 HARTING 1: $14.879 189In Stock	Mfr. Part # 21033012007 Mouser Part # 617-21033012007	HARTING	Audio Transformers / Signal Transformers M12 TRANS RECPT REAR MOUNTING KIT Learn More about HARTING m12 magnetics connectors	Datasheet	189In Stock	$14.879 $13.409 $12.612 $12.202 View $11.131 $10.983 $10.698 Quote	Min.: 1 Mult.: 1	Accessories				- 40 C	+ 85 C
Audio Transformers / Signal Transformers M12 TRANS RECPT FRONT MOUNTING KIT 21033012006 HARTING 1: $14.879 55In Stock 90Expected 11/2/2026	Mfr. Part # 21033012006 Mouser Part # 617-21033012006	HARTING	Audio Transformers / Signal Transformers M12 TRANS RECPT FRONT MOUNTING KIT Learn More about HARTING m12 magnetics connectors	Datasheet	55In Stock 90Expected 11/2/2026	$14.879 $13.421 $12.760 $12.350 View $11.962 $11.302 $10.812 $10.527	Min.: 1 Mult.: 1	Accessories				- 40 C	+ 85 C
Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-T D STR 21033812410 HARTING 1: $33.836 43In Stock	Mfr. Part # 21033812410 Mouser Part # 617-21033812410	HARTING	Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-T D STR Learn More about HARTING m12 magnetics connectors	Datasheet	43In Stock	$33.836 $30.464 $29.200 $28.038 View $27.138 $25.998	Min.: 1 Mult.: 1	PoE Transformers	SMD/SMT	10 MHz to 100 MHz	1.5 kV	- 40 C	+ 85 C	Dual
Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-T D STR W/ POE 21033812411 HARTING 1: $35.283 4In Stock 60Expected 11/16/2026	Mfr. Part # 21033812411 Mouser Part # 617-21033812411	HARTING	Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-T D STR W/ POE Learn More about HARTING m12 magnetics connectors	Datasheet	4In Stock 60Expected 11/16/2026	$35.283 $31.592 $30.225 $29.108 View $28.140 $26.727 Quote	Min.: 1 Mult.: 1	PoE Transformers	SMD/SMT	10 MHz to 100 MHz	1.5 kV	- 40 C	+ 85 C	Dual
Audio Transformers / Signal Transformers M12 TRANS 10GBASE-T X STR WITH POE+ 21033812823 HARTING 1: $53.455 20In Stock	Mfr. Part # 21033812823 Mouser Part # 617-21033812823	HARTING	Audio Transformers / Signal Transformers M12 TRANS 10GBASE-T X STR WITH POE+ Learn More about HARTING m12 magnetics connectors	Datasheet	20In Stock	$53.455 $48.886 $47.189 $46.163 View $46.152 $42.176 Quote	Min.: 1 Mult.: 1	PoE Transformers	SMD/SMT	10 MHz to 100 MHz	1.5 kV	- 40 C	+ 85 C	Quad
Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-T D ANG W/O POE 21033814420 HARTING 1: $44.466 5In Stock	Mfr. Part # 21033814420 Mouser Part # 617-21033814420	HARTING	Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-T D ANG W/O POE Learn More about HARTING m12 magnetics connectors	Datasheet	5In Stock	$44.466 $39.806 $37.938 $36.662 View $35.443 $33.495 Quote	Min.: 1 Mult.: 1	PoE Transformers	SMD/SMT	10 MHz to 100 MHz	1.5 kV	- 40 C	+ 85 C	Dual
Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-TD ANG W/ POE+ 21033814421 HARTING 1: $43.224 1In Stock	Mfr. Part # 21033814421 Mouser Part # 617-21033814421	HARTING	Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-TD ANG W/ POE+ Learn More about HARTING m12 magnetics connectors	Datasheet	1In Stock	$43.224 $37.881 $35.614 $34.281 View $33.050 $32.390 Quote	Min.: 1 Mult.: 1	PoE Transformers	SMD/SMT	10 MHz to 100 MHz	1.5 kV	- 40 C	+ 85 C	Dual
Audio Transformers / Signal Transformers M12 TRANS 1000BASE-T X ANG W/O POE 21033814820 HARTING 1: $63.492 19In Stock	Mfr. Part # 21033814820 Mouser Part # 617-21033814820	HARTING	Audio Transformers / Signal Transformers M12 TRANS 1000BASE-T X ANG W/O POE Learn More about HARTING m12 magnetics connectors	Datasheet	19In Stock	$63.492 $57.078 $54.264 $52.521 View $49.627 $48.704 Quote	Min.: 1 Mult.: 1	LAN Transformers	SMD/SMT	10 MHz to 100 MHz	1.5 kV	- 40 C	+ 85 C	Quad
Audio Transformers / Signal Transformers M12 TRANS 1000BASE-T X STR WITH POE+ 21033812817 HARTING 1: $49.900 Non-Stocked Lead-Time 34 Weeks	Mfr. Part # 21033812817 Mouser Part # 617-21033812817	HARTING	Audio Transformers / Signal Transformers M12 TRANS 1000BASE-T X STR WITH POE+ Learn More about HARTING m12 magnetics connectors	Datasheet	Non-Stocked Lead-Time 34 Weeks	$49.900 $44.705 $42.791 $40.342	Min.: 1 Mult.: 1	LAN Transformers	SMD/SMT	10 MHz to 100 MHz	1.5 kV	- 40 C	+ 85 C	Quad
Audio Transformers / Signal Transformers M12 TRANS 10GBASE-T X ANG W/O POE+ 21033814823 HARTING 30: $53.113 Non-Stocked Lead-Time 30 Weeks	Mfr. Part # 21033814823 Mouser Part # 617-21033814823	HARTING	Audio Transformers / Signal Transformers M12 TRANS 10GBASE-T X ANG W/O POE+ Learn More about HARTING m12 magnetics connectors	Datasheet	Non-Stocked Lead-Time 30 Weeks	$53.113	Min.: 30 Mult.: 30	PoE Transformers	SMD/SMT	10 MHz to 100 MHz	1.5 kV	- 40 C	+ 85 C	Quad
Audio Transformers / Signal Transformers M12 TRANS 10GBASE-T X ANG W/ POE+ 21033814825 HARTING 30: $57.078 Non-Stocked Lead-Time 30 Weeks	Mfr. Part # 21033814825 Mouser Part # 617-21033814825	HARTING	Audio Transformers / Signal Transformers M12 TRANS 10GBASE-T X ANG W/ POE+ Learn More about HARTING m12 magnetics connectors	Datasheet	Non-Stocked Lead-Time 30 Weeks	$57.078	Min.: 30 Mult.: 30	PoE Transformers	SMD/SMT	10 MHz to 100 MHz	1.5 kV	- 40 C	+ 85 C	Quad

M12 Receptacles with Integrated Magnetics

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