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 (USD) 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 10/100 BASE-T D STR 21033812410 HARTING 1: $29.70 A tariff of 30% may be applied if shipping to the United States. 113In 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	113In Stock	$29.70 $26.74 $25.63 $22.59 $22.12 A tariff of 30% may be applied if shipping to the United States.	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 21033812818 HARTING 1: $47.91 A tariff of 30% may be applied if shipping to the United States. 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	$47.91 $43.10 $41.30 $38.39 View $38.38 $33.89 Quote A tariff of 30% may be applied if shipping to the United States.	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 1: $44.71 A tariff of 30% may be applied if shipping to the United States. 60In Stock	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	60In Stock	$44.71 $40.19 $36.60 $32.89 View $32.88 $32.11 Quote A tariff of 30% may be applied if shipping to the United States.	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 1000BASE-T X ANG W/ POE+ 21033814822 HARTING 1: $49.21 A tariff of 30% may be applied if shipping to the United States. 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	$49.21 $42.23 $41.36 $41.35 View $39.02 Quote A tariff of 30% may be applied if shipping to the United States.	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 STR WITH POE+ 21033812823 HARTING 1: $48.53 A tariff of 30% may be applied if shipping to the United States. 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	$48.53 $43.65 $41.83 $40.16 View $37.55 $34.37 Quote A tariff of 30% may be applied if shipping to the United States.	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 RECPT FRONT MOUNTING KIT 21033012006 HARTING 1: $13.06 A tariff of 38% may be applied if shipping to the United States. 55In Stock 90Expected 10/16/2026	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 10/16/2026	$13.06 $11.62 $10.48 $9.94 View $9.40 $9.39 $9.08 $8.99 A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1	Accessories				- 40 C	+ 85 C
Audio Transformers / Signal Transformers M12 TRANS RECPT REAR MOUNTING KIT 21033012007 HARTING 1: $13.06 A tariff of 30% may be applied if shipping to the United States. 79In 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	79In Stock	$13.06 $11.57 $10.72 $9.98 View $9.53 $9.24 $9.15 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1	Accessories				- 40 C	+ 85 C
Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-T D STR W/ POE 21033812411 HARTING 1: $31.48 A tariff of 30% may be applied if shipping to the United States. 4In Stock 60Expected 10/19/2026	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 10/19/2026	$31.48 $28.34 $26.45 $24.73 View $23.46 $22.13 Quote A tariff of 30% may be applied if shipping to the United States.	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 ANG W/O POE 21033814420 HARTING 1: $39.16 A tariff of 30% may be applied if shipping to the United States. 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	$39.16 $35.24 $32.96 $30.84 View $29.26 $28.39 Quote A tariff of 30% may be applied if shipping to the United States.	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: $55.73 A tariff of 30% may be applied if shipping to the United States. 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	$55.73 $50.12 $46.86 $43.95 View $41.72 $40.86 Quote A tariff of 30% may be applied if shipping to the United States.	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 10/100 BASE-TD ANG W/ POE+ 21033814421 HARTING 1: $39.16 A tariff of 30% may be applied if shipping to the United States. 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	$39.16 $35.24 $32.96 $30.84 View $29.26 $27.72 Quote A tariff of 30% may be applied if shipping to the United States.	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 STR WITH POE+ 21033812817 HARTING 1: $45.35 A tariff of 30% may be applied if shipping to the United States. 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	$45.35 $40.80 $39.10 $37.54 A tariff of 30% may be applied if shipping to the United States.	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: $51.04 A tariff of 30% may be applied if shipping to the United States. 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	$51.04 A tariff of 30% may be applied if shipping to the United States.	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: $52.75 A tariff of 30% may be applied if shipping to the United States. 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	$52.75 A tariff of 30% may be applied if shipping to the United States.	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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