Neutrik NBB75DFI is an isolated 75 Ω BNC bulkhead feedthrough in a D-shape housing with gold-plated center contact and PTFE insulator. It has a BNC socket on each side.
On set it serves as a coupler to extend two SDI cables with BNC (M) connectors. Thanks to the D-shape housing it can also be built into panels of distribution boxes and racks; the insulated design separates the shield from the metal panel.
Ideal for
Why Neutrik NBB75DFI – BNC coupler (feedthrough)
- Impedance 75 Ω – Maintains SDI path parameters when joining cables.
- Insulated design – Shading is not connected to the metal panel.
- Gold-plated contact – Reliable connection even with frequent plugging and unplugging.
- D-shape format – Mounts in standard panel cutouts.
Key specs
| Type | Coupler / adapter |
|---|---|
| Connectors | BNC 75 Ω (F) – BNC 75 Ω (F) |
| Signal / standard | SDI / HD video, 75 Ω |
| Compatibility | SDI cables with BNC connectors |
Construction
| Version | insulated bushing, D-shape |
|---|---|
| Center contact | gilded |
| Insulator | PTFE |
| Case | zinc alloy, nickel-plated |
| VSWR up to 3 GHz | ≤ 1,08 |
