Connectors

Connectors

Connectors are electromechanical components used to join electrical circuits, enabling reliable transmission of power and signals between devices, boards, or subsystems. They provide a secure yet detachable interface that simplifies assembly, maintenance, and system scalability across a wide range of applications. These components are essential for ensuring consistent electrical performance, mechanical stability, and efficient system integration.

Types: The most common connector types include board-to-board, wire-to-board, and wire-to-wire connectors, as well as RF connectors, circular connectors, rectangular connectors, USB connectors, and terminal blocks, each designed for specific connectivity and environmental requirements.

Applications: Connectors are widely used in industrial automation, automotive systems, telecommunications equipment, data centers, consumer electronics, and power distribution systems to enable reliable electrical and signal connections.

Selection requirements: To choose connectors, evaluate current and voltage ratings, contact design, pitch and form factor, mating cycles, environmental sealing, temperature range, and mechanical durability for the intended application.

Connectors are in stock with same-day shipping at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many connector manufacturers including 3M, Amphenol, Aptiv, Cinch, Glenair, HARTING, Harwin, Hirose, ITT Cannon, LEMO, Molex, Neutrik, Phoenix Contact, Samtec, Souriau, Switchcraft, TE Connectivity, Würth Elektronik & more.

Please view our large selection of over 4,000,000 connectors below.

Results: 4,147,078
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Molex I/O Connectors QSFP-DD SMT Conn., 76 Pos., 112 Gbps, 0.76 m Gold (Au) Plated 1,397In Stock
2,700Expected 04/03/2027
Cut Tape
$20.26
$17.56
$16.64
$16.40
Reel
$12.77
Min.: 1
Mult.: 1
: 540
Rosenberger RF Connectors / Coaxial Connectors quad PCB, right angled, wp with housing 1,058In Stock
$21.25
$18.06
$16.93
$16.12
Min.: 1
Mult.: 1
Samtec Board to Board & Mezzanine Connectors 0.635 mm AcceleRate HP High-Performance Array Terminal 330In Stock
300Expected 21/12/2026
Cut Tape
$76.84
$65.37
$65.36
$65.35
Reel
$53.40
Min.: 1
Mult.: 1
: 300
L-Com TBTLRJ45F
L-Com Modular Connectors / Ethernet Connectors Toolless RJ45 8P8C Female to Terminal Block 8 pin Connector 50In Stock
$21.53
$18.29
$17.15
$16.19
Min.: 1
Mult.: 1
Radiall R125415270X
Radiall RF Connectors / Coaxial Connectors SMAS F STR SQF PIN 1In Stock
$300.24
$255.22
Min.: 1
Mult.: 1
Molex 73239-3780
Molex RF Cable Assemblies BNC Jack Blkhd IP rated to MCX Str Plug on RG316, 6" length 50In Stock
$28.67
$24.37
$22.84
$21.75
Min.: 1
Mult.: 1
L-Com TB35MF
L-Com Phone Connectors Mono Plug 3.5mm Female to Terminal Block 2 pin Connector 47In Stock
$6.34
$5.74
$5.42
$5.29
Min.: 1
Mult.: 1
C&K Aerospace MDMB-51P-A174-FO
C&K Aerospace D-Sub Micro-D Connectors 1In Stock
$343.45
$311.69
Min.: 1
Mult.: 1
C&K Aerospace MDM-DUST CAP-37P-FR022
C&K Aerospace D-Sub Tools & Hardware 46In Stock
$5.55
$5.05
$4.78
$4.06
Min.: 1
Mult.: 1
C&K Aerospace MDM-DUST CAP-51S-FR022
C&K Aerospace D-Sub Tools & Hardware 100In Stock
$5.55
$5.05
$4.78
$3.79
Min.: 1
Mult.: 1
Souriau 8DB717W08PSN
Souriau Circular MIL Spec Strain Reliefs & Adapters 1In Stock
$1,101.01
$1,001.48
Min.: 1
Mult.: 1
Molex 73239-3782
Molex RF Cable Assemblies BNC Jack Blkhd IP rated to MCX Str Plug on RG316, 24" length 50In Stock
$30.88
$26.24
$24.60
$23.77
Min.: 1
Mult.: 1
C&K Aerospace MDM-DUST CAP-51P-FR022
C&K Aerospace D-Sub Tools & Hardware 48In Stock
$5.55
$5.05
$4.78
$3.79
Min.: 1
Mult.: 1
L-Com TB35SM
L-Com Phone Connectors Stereo Plug 3.5 mm to Terminal Block 3 pin Connector 45In Stock
$6.34
$5.74
$5.42
$4.58
Min.: 1
Mult.: 1
L-Com TBPRCAF
L-Com RCA Phono Connectors RCA Female to Terminal Block with push button 2 pin Connector 44In Stock
$6.36
$5.76
$5.44
$4.60
Min.: 1
Mult.: 1
L-Com TBPRCAM
L-Com RCA Phono Connectors RCA Male to Terminal Block with push button 2 pin Connector 42In Stock
$6.36
$5.76
$5.44
$4.60
Min.: 1
Mult.: 1
Amphenol Socapex TVNSD21033K
Amphenol Socapex Circular MIL Spec Backshells 7In Stock
$218.41
$192.65
$185.74
$184.35
Min.: 1
Mult.: 1
Molex 73239-3812
Molex RF Cable Assemblies BNC Jack Blkhd to MMCX R/A Plug on RG316, 24" length 40In Stock
$31.00
$26.34
$24.70
$23.87
$23.07
Min.: 1
Mult.: 1
L-Com TBRJ45M
L-Com Modular Connectors / Ethernet Connectors RJ45 8P8C Male to Terminal Block 8 pin Connector 50In Stock
$17.19
$14.77
$14.00
$13.80
Min.: 1
Mult.: 1
Amphenol Positronic PCIA60W36F8000/AA
Amphenol Positronic Power to the Board 32In Stock
$21.33
$18.13
$16.98
$15.81
Min.: 1
Mult.: 1
Molex 216741-0003
Molex Automotive Connectors MX123 HRN CONN ASSY 66 CKT OPT0 KEY C/66 89In Stock
$5.82
$5.29
$5.02
$4.90
Min.: 1
Mult.: 1
Souriau 8DB719W35PSN
Souriau Circular MIL Spec Strain Reliefs & Adapters 1In Stock
$1,274.36
$1,159.16
Min.: 1
Mult.: 1
L-Com TBTLRJ45M
L-Com Modular Connectors / Ethernet Connectors Toolless RJ45 8P8C Male to Terminal Block 8 pin Connector 48In Stock
$17.19
$14.77
$14.00
$12.78
Min.: 1
Mult.: 1
Molex 73239-3810
Molex RF Cable Assemblies BNC Jack Blkhd to MMCX R/A Plug on RG316, 6" length 50In Stock
$28.80
$24.47
$22.94
$21.85
Min.: 1
Mult.: 1
ITT Cannon MS-3420-12
ITT Cannon D-Sub Tools & Hardware MS342012 52In Stock
300Expected 16/04/2027
$8.47
$7.62
$7.18
$7.00
Min.: 1
Mult.: 1