Modular Connectors / Ethernet Connectors

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MTJ Single-Port Modular Jacks

Adam Tech MTJ Single-Port Modular Jacks feature a series of PCB and wire-leaded jacks for industry-standard telephone plugs. The MTJ series offers various jack sizes, including 4P2C to 10P10C. The jacks provide single, ganged, and stacked versions with magnetic or ferrite-filtering options. Adam Tech MTJ Single-Port Modular Jacks have unshielded or metal-shielded options and are available for thru-hole or SMT mounting. The MTJ jacks are UL-approved and meet all required FCC compliances, including No. 47 CFR part 68. The jacks are ideal for Adam Tech modular plugs and telephone plugs.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Gender	USOC Codes	Configuration	Number of Positions / Contacts per Port	Shielding	Performance Category	Mounting Style	Mounting Angle	Termination Style	Current Rating	Voltage Rating	Minimum Operating Temperature	Maximum Operating Temperature	Color	LED L / R Color	Tab Direction	Series	Packaging
Modular Connectors / Ethernet Connectors MODULAR JACK 6P6C MTJ-66GX1 Adam Tech 1: $0.706 4,237In Stock	Mfr. Part # MTJ-66GX1 Mouser Part # 737-MTJ-66GX1	Adam Tech	Modular Connectors / Ethernet Connectors MODULAR JACK 6P6C Learn More about Adam Tech mtj modular jacks	Datasheet	4,237In Stock	$0.706 $0.704 $0.295 $0.276	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ11, RJ12, RJ14, RJ25	1x1	6P6C	Unshielded		Through Hole	Right Angle	Solder	1.5 A	125 V	- 40 C	+ 85 C	Black		Tab Down	MTJ	Tray
Modular Connectors / Ethernet Connectors MODULAR JACK 4P4C MTJ-44HX1 Adam Tech 1: $1.89 4,445In Stock	Mfr. Part # MTJ-44HX1 Mouser Part # 737-MTJ-44HX1	Adam Tech	Modular Connectors / Ethernet Connectors MODULAR JACK 4P4C Learn More about Adam Tech mtj modular jacks	Datasheet	4,445In Stock	$1.89 $1.60 $1.43 $1.40 View $1.29 $1.15 $1.11 $1.10	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ9, RJ10, RJ22		4P4C	Unshielded		SMD/SMT	Vertical	Solder	1.5 A	150 V	- 40 C	+ 85 C	Black		Top Entry	MTJ	Tray
Modular Connectors / Ethernet Connectors MODULAR JACK 6P6C MTJ-662X2 Adam Tech 1: $0.518 17,178In Stock 4,920On Order	Mfr. Part # MTJ-662X2 Mouser Part # 737-MTJ-662X2	Adam Tech	Modular Connectors / Ethernet Connectors MODULAR JACK 6P6C Learn More about Adam Tech mtj modular jacks	Datasheet	17,178In Stock 4,920On Order	$0.518 $0.442 $0.395 $0.359 View $0.33 $0.291 $0.279 $0.271 $0.248	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ11, RJ12, RJ14, RJ25	1x1	6P6C	Unshielded		Through Hole	Right Angle	Solder	1.5 A	150 V	- 40 C	+ 85 C	Gray		Tab Up	MTJ	Tray
Modular Connectors / Ethernet Connectors 6P6C MOD PHONE JACK BLACK MTJ-663X1 Adam Tech 1: $0.504 13,712In Stock	Mfr. Part # MTJ-663X1 Mouser Part # 737-MTJ-663X1	Adam Tech	Modular Connectors / Ethernet Connectors 6P6C MOD PHONE JACK BLACK Learn More about Adam Tech mtj modular jacks	Datasheet	13,712In Stock	$0.504 $0.433 $0.387 $0.356 View $0.327 $0.291 $0.279	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ11, RJ12, RJ14, RJ25	1x1	6P6C	Unshielded		Through Hole	Vertical	Solder	1.5 A	150 V	- 40 C	+ 85 C	Black		Top Entry	MTJ	Tray
Modular Connectors / Ethernet Connectors MODULAR JACK 6P6C MTJ-669X1 Adam Tech 1: $0.864 4,988In Stock	Mfr. Part # MTJ-669X1 Mouser Part # 737-MTJ-669X1	Adam Tech	Modular Connectors / Ethernet Connectors MODULAR JACK 6P6C Learn More about Adam Tech mtj modular jacks	Datasheet	4,988In Stock	$0.864 $0.747 $0.681 $0.645 View $0.631 $0.523 $0.49 $0.478	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ11, RJ12, RJ14, RJ25	1x1	6P6C	Unshielded		Through Hole	Right Angle	Solder	1.5 A	125 V	- 40 C	+ 85 C	Black		Tab Down	MTJ	Tray
Modular Connectors / Ethernet Connectors 8P8C TYPE 5 GLD FLSH BLK MTJ-885X1 Adam Tech 1: $1.18 10,008In Stock	Mfr. Part # MTJ-885X1 Mouser Part # 737-MTJ-885X1	Adam Tech	Modular Connectors / Ethernet Connectors 8P8C TYPE 5 GLD FLSH BLK Learn More about Adam Tech mtj modular jacks	Datasheet	10,008In Stock	$1.18 $1.01 $0.897 $0.828 View $0.75 $0.721 $0.668 $0.652 $0.634	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ45	1x1	8P8C	Unshielded	Cat 5	Through Hole	Right Angle	Solder	1.5 A	150 V	- 40 C	+ 85 C	Black		Tab Down	MTJ	Tray
Modular Connectors / Ethernet Connectors RJ45 MODULAR JACK, SHIELDED, DIP MTJ-88AAX1-FSV-LG Adam Tech 1: $2.10 1,445In Stock	Mfr. Part # MTJ-88AAX1-FSV-LG Mouser Part # 737-MTJ88AAX1FSVLG	Adam Tech	Modular Connectors / Ethernet Connectors RJ45 MODULAR JACK, SHIELDED, DIP Learn More about Adam Tech mtj modular jacks	Datasheet	1,445In Stock	$2.10 $2.04 $1.99	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ45	1x1	8P8C	Shielded		Through Hole	Right Angle	Solder	1.5 A	150 V	- 40 C	+ 85 C	Black	Yellow / Green	Tab Down	MTJ	Tray
Modular Connectors / Ethernet Connectors RJ45 MODULAR JACK, SHIELDED, DIP MTJ-88ARX1-FSM-LG Adam Tech 1: $2.12 3,885In Stock 20,340On Order	Mfr. Part # MTJ-88ARX1-FSM-LG Mouser Part # 737-MTJ88ARX1FSMLG	Adam Tech	Modular Connectors / Ethernet Connectors RJ45 MODULAR JACK, SHIELDED, DIP Learn More about Adam Tech mtj modular jacks	Datasheet	3,885In Stock 20,340On Order On Order Ship Dates Mfr. #: MTJ-88ARX1-FSM-LG Stock: 3,885 Can Ship Immediately On Order: 1,680 Pending 18,660 Expected 2026-11-20 Factory Lead-Time: 18 Weeks	$2.12 $1.87 $1.77 $1.53 View $1.40 $1.30 $1.22 $1.14	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ45	1x1	8P8C	Shielded		Through Hole	Right Angle	Solder	1.5 A	150 V	- 40 C	+ 85 C	Black	Yellow / Green	Tab Up	MTJ	Tray
Modular Connectors / Ethernet Connectors CONN MOD JACK 8P8C R/A SHIELDED MTJG-4-88GX1-FSB Adam Tech 1: $3.01 4,348In Stock	Mfr. Part # MTJG-4-88GX1-FSB Mouser Part # 737-MTJG-4-88GX1-FSB	Adam Tech	Modular Connectors / Ethernet Connectors CONN MOD JACK 8P8C R/A SHIELDED Learn More about Adam Tech mtj modular jacks	Datasheet	4,348In Stock	$3.01 $2.43 $2.25 $2.16 View $2.02 $1.93 $1.84 $1.73 $1.68	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ45	1x4	8P8C	Shielded		Through Hole	Right Angle	Solder	1.5 A	150 V	- 40 C	+ 85 C	Black		Tab Down	MTJG	Tray
Modular Connectors / Ethernet Connectors 6P4C TYPE 5 GLD FLSH BLK MTJ-645X1 Adam Tech 1: $0.389 6,745In Stock 13,994On Order	Mfr. Part # MTJ-645X1 Mouser Part # 737-MTJ-645X1	Adam Tech	Modular Connectors / Ethernet Connectors 6P4C TYPE 5 GLD FLSH BLK Learn More about Adam Tech mtj modular jacks	Datasheet	6,745In Stock 13,994On Order On Order Ship Dates Mfr. #: MTJ-645X1 Stock: 6,745 Can Ship Immediately On Order: 13,832 Expected 2027-01-08 162 TBD Factory Lead-Time: 18 Weeks	$0.389 $0.324 $0.289 $0.265 View $0.243 $0.232 $0.219 $0.216 $0.202	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ11, RJ14	1x1	6P4C	Unshielded	Cat 5, Cat 5e	Through Hole	Right Angle	Solder	1.5 A	125 V	- 40 C	+ 85 C	Black		Tab Down	MTJ	Tray
Modular Connectors / Ethernet Connectors MODULAR JACK 6P6C MTJ-661X1 Adam Tech 1: $0.677 4,565In Stock	Mfr. Part # MTJ-661X1 Mouser Part # 737-MTJ-661X1	Adam Tech	Modular Connectors / Ethernet Connectors MODULAR JACK 6P6C Learn More about Adam Tech mtj modular jacks	Datasheet	4,565In Stock	$0.677 $0.577 $0.517 $0.469 View $0.435 $0.406 $0.39 $0.37	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ11, RJ12, RJ14, RJ25	1x1	6P6C	Unshielded		Through Hole	Right Angle	Solder	1.5 A	125 V	- 40 C	+ 85 C	Black		Tab Down	MTJ	Tray
Modular Connectors / Ethernet Connectors MODULAR JACK 6P6C MTJ-665X1 Adam Tech 1: $0.734 1,708In Stock 5,096Expected 2027-01-08	Mfr. Part # MTJ-665X1 Mouser Part # 737-MTJ-665X1	Adam Tech	Modular Connectors / Ethernet Connectors MODULAR JACK 6P6C Learn More about Adam Tech mtj modular jacks	Datasheet	1,708In Stock 5,096Expected 2027-01-08	$0.734 $0.619 $0.553 $0.505 View $0.467 $0.444 $0.418 $0.40	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ11, RJ12, RJ14, RJ25	1x1	6P6C	Unshielded		Through Hole	Right Angle	Solder	1.5 A	125 V	- 40 C	+ 85 C	Black		Tab Down	MTJ	Tray
Modular Connectors / Ethernet Connectors 8P8C TYPE 2B GLD FLSH BLK MTJ-882BX1 Adam Tech 1: $1.07 2,401In Stock 5,000Expected 2027-01-08	Mfr. Part # MTJ-882BX1 Mouser Part # 737-MTJ-882BX1	Adam Tech	Modular Connectors / Ethernet Connectors 8P8C TYPE 2B GLD FLSH BLK Learn More about Adam Tech mtj modular jacks	Datasheet	2,401In Stock 5,000Expected 2027-01-08	$1.07 $0.91 $0.812 $0.772 View $0.69 $0.635 $0.605 $0.573	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ45	1x1	8P8C	Unshielded	Cat 5	Through Hole	Right Angle	Solder	1.5 A	125 V	- 40 C	+ 85 C	Black		Tab Up	MTJ	Tray
Modular Connectors / Ethernet Connectors RJ45 MODULAR JACK, DIP, SIDE ENT MTJ-88ARX1-LH Adam Tech 1: $0.806 1,602In Stock 5,376Expected 2027-02-05	Mfr. Part # MTJ-88ARX1-LH Mouser Part # 737-MTJ-88ARX1-LH	Adam Tech	Modular Connectors / Ethernet Connectors RJ45 MODULAR JACK, DIP, SIDE ENT Learn More about Adam Tech mtj modular jacks	Datasheet	1,602In Stock 5,376Expected 2027-02-05	$0.806 $0.69 $0.616 $0.566 View $0.523 $0.498 $0.467 $0.464	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ45	1x1	8P8C	Shielded		Through Hole	Right Angle	Solder	1.5 A	150 V	- 40 C	+ 85 C		Green / Yellow	Tab Up	MTJ	Tray
Modular Connectors / Ethernet Connectors RJ45 MODULAR JACK, SHIELDED, DIP MTJ-88TX1-FSD-LG Adam Tech 1: $1.40 1,133In Stock	Mfr. Part # MTJ-88TX1-FSD-LG Mouser Part # 737-MTJ-88TX1-FSD-LG	Adam Tech	Modular Connectors / Ethernet Connectors RJ45 MODULAR JACK, SHIELDED, DIP Learn More about Adam Tech mtj modular jacks	Datasheet	1,133In Stock	$1.40 $1.30 $1.19 $1.13 View $1.09 $1.02 $0.906	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ45	1x1	8P8C	Shielded		Through Hole	Right Angle	Solder	1.5 A	150 V	- 40 C	+ 85 C	Black	Yellow / Green	Tab Down	MTJ	Tray
Modular Connectors / Ethernet Connectors 8P HOUSING TP 1 PLUG SZ 8 MTJ-881X1 Adam Tech 1: $0.648 523In Stock Factory Special Order	Mfr. Part # MTJ-881X1 Mouser Part # 737-MTJ-881X1 Factory Special Order	Adam Tech	Modular Connectors / Ethernet Connectors 8P HOUSING TP 1 PLUG SZ 8 Learn More about Adam Tech mtj modular jacks	Datasheet	523In Stock	$0.648 $0.552 $0.481 $0.456 View $0.413 $0.387 $0.367 $0.356 $0.334	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ45	1x1	8P8C	Unshielded	Cat 5, Cat 5e	Through Hole	Right Angle	Solder	1.5 A	125 V	- 40 C	+ 85 C	Black		Tab Down	MTJ	Tray
Modular Connectors / Ethernet Connectors RJ45 MODULAR JACK, DIP, TOP ENTR MTJ-88DX1-LH Adam Tech 1: $1.34 1,720In Stock Factory Special Order	Mfr. Part # MTJ-88DX1-LH Mouser Part # 737-MTJ-88DX1-LH Factory Special Order	Adam Tech	Modular Connectors / Ethernet Connectors RJ45 MODULAR JACK, DIP, TOP ENTR Learn More about Adam Tech mtj modular jacks	Datasheet	1,720In Stock	$1.34 $1.14 $1.04 $0.982 View $0.912 $0.842 $0.786 $0.677	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ45	1x1	8P8C	Unshielded		Through Hole	Vertical	Solder	1.5 A	150 V	- 40 C	+ 85 C	Black	Green / Yellow	Tab Up	MTJ	Tray
Modular Connectors / Ethernet Connectors 8P8C TYPE 9 GLD FLSH BLK MTJ-889X1 Adam Tech 1: $0.893 5,147Expected 2026-11-06	Mfr. Part # MTJ-889X1 Mouser Part # 737-MTJ-889X1	Adam Tech	Modular Connectors / Ethernet Connectors 8P8C TYPE 9 GLD FLSH BLK Learn More about Adam Tech mtj modular jacks	Datasheet	5,147Expected 2026-11-06	$0.893 $0.76 $0.68 $0.626 View $0.567 $0.54 $0.501 $0.484 $0.467	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ45	1x1	8P8C	Unshielded	Cat 5	Through Hole	Right Angle	Solder	1.5 A	150 V	- 40 C	+ 85 C	Black		Tab Down	MTJ	Tray
Modular Connectors / Ethernet Connectors MODULAR JACK RJ45 8P8C MTJ-889X1-FSE Adam Tech 1: $1.11 761In Stock 4,859Expected 2027-02-19	Mfr. Part # MTJ-889X1-FSE Mouser Part # 737-MTJ-889X1-FSE	Adam Tech	Modular Connectors / Ethernet Connectors MODULAR JACK RJ45 8P8C Learn More about Adam Tech mtj modular jacks	Datasheet	761In Stock 4,859Expected 2027-02-19	$1.11 $0.958 $0.788 $0.739 View $0.688 $0.589 $0.559 $0.533 $0.516	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ45	1x1	8P8C	Shielded		Through Hole	Right Angle	Solder	1.5 A	150 V	- 40 C	+ 85 C	Black		Tab Down	MTJ	Tray
Modular Connectors / Ethernet Connectors RJ45 MODULAR JACK, SHIELDED, PNL MTJ-88ARX1-FSM-PG-LH Adam Tech 1: $1.37 10,800On Order	Mfr. Part # MTJ-88ARX1-FSM-PG-LH Mouser Part # 737-MTJ88ARX1FSMPGLH	Adam Tech	Modular Connectors / Ethernet Connectors RJ45 MODULAR JACK, SHIELDED, PNL Learn More about Adam Tech mtj modular jacks	Datasheet	10,800On Order On Order Ship Dates Mfr. #: MTJ-88ARX1-FSM-PG-LH Stock: 0 On Order: 5,400 Expected 2027-01-15 5,400 Expected 2027-02-05 Factory Lead-Time: 18 Weeks	$1.37 $1.17 $1.07 $0.955 View $0.927 $0.884 $0.841 $0.76 $0.732	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ45	1x1	8P8C	Shielded		Through Hole	Right Angle	Solder	1.5 A	150 V	- 40 C	+ 85 C	Black	Green / Yellow	Tab Up	MTJ	Tray
Modular Connectors / Ethernet Connectors 8P8C TYPE 3 GLD FLSH BLK MTJ-883X1 Adam Tech 1: $0.763 5,082Expected 2027-03-29	Mfr. Part # MTJ-883X1 Mouser Part # 737-MTJ-883X1	Adam Tech	Modular Connectors / Ethernet Connectors 8P8C TYPE 3 GLD FLSH BLK Learn More about Adam Tech mtj modular jacks	Datasheet	5,082Expected 2027-03-29	$0.763 $0.649 $0.572 $0.467 View $0.405 $0.359 $0.33 $0.302	Min.: 1 Mult.: 1	Connectors	Modular	Jack (Female)	RJ45	1x1	8P8C	Unshielded	Cat 5, Cat 5e	Through Hole	Vertical	Solder	1.5 A	150 V	- 40 C	+ 85 C	Black		Tab Up	MTJ	Tray
Modular Connectors / Ethernet Connectors 8P8C TYPE 0 GLD FLSH BLK MTJ-880X1 Adam Tech Non-Stocked Factory Special Order	Mfr. Part # MTJ-880X1 Mouser Part # 737-MTJ-880X1 Factory Special Order	Adam Tech	Modular Connectors / Ethernet Connectors 8P8C TYPE 0 GLD FLSH BLK Learn More about Adam Tech mtj modular jacks	Datasheet	Non-Stocked		Request a Quote	Connectors	Modular	Jack (Female)	RJ45	1x1	8P8C	Unshielded	Cat 5, Cat 5e	Through Hole	Right Angle	Solder	1.5 A	125 V	- 40 C	+ 85 C	Black		Tab Down	MTJ	Tray

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