BNC
Bayonet Neill-Concelman
Invented in
1940s
Invented by
Paul Neill & Carl Concelman
Availability
Common (pro / RF)
A miniature quick-connect coaxial connector with a clever bayonet mount: push and twist a quarter-turn and it locks. Used for radio frequency, test instruments, professional video (SDI) and early Ethernet.
Technical specifications
Introduced1940s
SignalRF / video
Impedance50 or 75 Ω
MountQuarter-turn bayonet
Found on
a mixer / interfacean antenna
Recommended brands
01Amphenol
02Canare
03Telegärtner
Where to buy
Europe-focused retailer searches. Some links are affiliate links and may earn a commission.
Common adapters and cables
Fun fact
Named after inventors Paul Neill and Carl Concelman, combined with its Bayonet mount. Engineers still argue about what the letters stand for.
Tips & tricks
75Ω (video) and 50Ω (RF) versions look identical but are not interchangeable for clean signal.
Philosophy
A connector named after the people who made it. In a world of acronyms, BNC quietly carries two engineers into every TV studio.
Applications
Video / SATDataPro audio
